OpenTTD
window.cpp
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1 /* $Id: window.cpp 27826 2017-03-24 19:25:01Z peter1138 $ */
2 
3 /*
4  * This file is part of OpenTTD.
5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
6  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
8  */
9 
12 #include "stdafx.h"
13 #include <stdarg.h>
14 #include "company_func.h"
15 #include "gfx_func.h"
16 #include "console_func.h"
17 #include "console_gui.h"
18 #include "viewport_func.h"
19 #include "progress.h"
20 #include "blitter/factory.hpp"
21 #include "zoom_func.h"
22 #include "vehicle_base.h"
23 #include "window_func.h"
24 #include "tilehighlight_func.h"
25 #include "network/network.h"
26 #include "querystring_gui.h"
27 #include "widgets/dropdown_func.h"
28 #include "strings_func.h"
29 #include "settings_type.h"
30 #include "settings_func.h"
31 #include "ini_type.h"
32 #include "newgrf_debug.h"
33 #include "hotkeys.h"
34 #include "toolbar_gui.h"
35 #include "statusbar_gui.h"
36 #include "error.h"
37 #include "game/game.hpp"
38 #include "video/video_driver.hpp"
39 
40 #include "safeguards.h"
41 
48 };
49 
51 static Window *_mouseover_last_w = NULL;
52 static Window *_last_scroll_window = NULL;
53 
58 
61 
62 /*
63  * Window that currently has focus. - The main purpose is to generate
64  * #FocusLost events, not to give next window in z-order focus when a
65  * window is closed.
66  */
67 Window *_focused_window;
68 
69 Point _cursorpos_drag_start;
70 
71 int _scrollbar_start_pos;
72 int _scrollbar_size;
73 byte _scroller_click_timeout = 0;
74 
77 
79 
85 
88 
90 WindowDesc::WindowDesc(WindowPosition def_pos, const char *ini_key, int16 def_width_trad, int16 def_height_trad,
91  WindowClass window_class, WindowClass parent_class, uint32 flags,
92  const NWidgetPart *nwid_parts, int16 nwid_length, HotkeyList *hotkeys) :
93  default_pos(def_pos),
94  cls(window_class),
95  parent_cls(parent_class),
96  ini_key(ini_key),
97  flags(flags),
98  nwid_parts(nwid_parts),
99  nwid_length(nwid_length),
100  hotkeys(hotkeys),
101  pref_sticky(false),
102  pref_width(0),
103  pref_height(0),
104  default_width_trad(def_width_trad),
105  default_height_trad(def_height_trad)
106 {
107  if (_window_descs == NULL) _window_descs = new SmallVector<WindowDesc*, 16>();
108  *_window_descs->Append() = this;
109 }
110 
111 WindowDesc::~WindowDesc()
112 {
113  _window_descs->Erase(_window_descs->Find(this));
114 }
115 
122 {
123  return this->pref_width != 0 ? this->pref_width : ScaleGUITrad(this->default_width_trad);
124 }
125 
132 {
133  return this->pref_height != 0 ? this->pref_height : ScaleGUITrad(this->default_height_trad);
134 }
135 
140 {
141  IniFile *ini = new IniFile();
143  for (WindowDesc **it = _window_descs->Begin(); it != _window_descs->End(); ++it) {
144  if ((*it)->ini_key == NULL) continue;
145  IniLoadWindowSettings(ini, (*it)->ini_key, *it);
146  }
147  delete ini;
148 }
149 
153 static int CDECL DescSorter(WindowDesc * const *a, WindowDesc * const *b)
154 {
155  if ((*a)->ini_key != NULL && (*b)->ini_key != NULL) return strcmp((*a)->ini_key, (*b)->ini_key);
156  return ((*b)->ini_key != NULL ? 1 : 0) - ((*a)->ini_key != NULL ? 1 : 0);
157 }
158 
163 {
164  /* Sort the stuff to get a nice ini file on first write */
165  QSortT(_window_descs->Begin(), _window_descs->Length(), DescSorter);
166 
167  IniFile *ini = new IniFile();
168  ini->LoadFromDisk(_windows_file, NO_DIRECTORY);
169  for (WindowDesc **it = _window_descs->Begin(); it != _window_descs->End(); ++it) {
170  if ((*it)->ini_key == NULL) continue;
171  IniSaveWindowSettings(ini, (*it)->ini_key, *it);
172  }
173  ini->SaveToDisk(_windows_file);
174  delete ini;
175 }
176 
181 {
182  if (this->nested_root != NULL && this->nested_root->GetWidgetOfType(WWT_STICKYBOX) != NULL) {
183  if (this->window_desc->pref_sticky) this->flags |= WF_STICKY;
184  } else {
185  /* There is no stickybox; clear the preference in case someone tried to be funny */
186  this->window_desc->pref_sticky = false;
187  }
188 }
189 
199 int Window::GetRowFromWidget(int clickpos, int widget, int padding, int line_height) const
200 {
201  const NWidgetBase *wid = this->GetWidget<NWidgetBase>(widget);
202  if (line_height < 0) line_height = wid->resize_y;
203  if (clickpos < (int)wid->pos_y + padding) return INT_MAX;
204  return (clickpos - (int)wid->pos_y - padding) / line_height;
205 }
206 
211 {
212  for (uint i = 0; i < this->nested_array_size; i++) {
213  NWidgetBase *nwid = this->GetWidget<NWidgetBase>(i);
214  if (nwid == NULL) continue;
215 
216  if (nwid->IsHighlighted()) {
217  nwid->SetHighlighted(TC_INVALID);
218  this->SetWidgetDirty(i);
219  }
220  }
221 
222  CLRBITS(this->flags, WF_HIGHLIGHTED);
223 }
224 
230 void Window::SetWidgetHighlight(byte widget_index, TextColour highlighted_colour)
231 {
232  assert(widget_index < this->nested_array_size);
233 
234  NWidgetBase *nwid = this->GetWidget<NWidgetBase>(widget_index);
235  if (nwid == NULL) return;
236 
237  nwid->SetHighlighted(highlighted_colour);
238  this->SetWidgetDirty(widget_index);
239 
240  if (highlighted_colour != TC_INVALID) {
241  /* If we set a highlight, the window has a highlight */
242  this->flags |= WF_HIGHLIGHTED;
243  } else {
244  /* If we disable a highlight, check all widgets if anyone still has a highlight */
245  bool valid = false;
246  for (uint i = 0; i < this->nested_array_size; i++) {
247  NWidgetBase *nwid = this->GetWidget<NWidgetBase>(i);
248  if (nwid == NULL) continue;
249  if (!nwid->IsHighlighted()) continue;
250 
251  valid = true;
252  }
253  /* If nobody has a highlight, disable the flag on the window */
254  if (!valid) CLRBITS(this->flags, WF_HIGHLIGHTED);
255  }
256 }
257 
263 bool Window::IsWidgetHighlighted(byte widget_index) const
264 {
265  assert(widget_index < this->nested_array_size);
266 
267  const NWidgetBase *nwid = this->GetWidget<NWidgetBase>(widget_index);
268  if (nwid == NULL) return false;
269 
270  return nwid->IsHighlighted();
271 }
272 
280 void Window::OnDropdownClose(Point pt, int widget, int index, bool instant_close)
281 {
282  if (widget < 0) return;
283 
284  if (instant_close) {
285  /* Send event for selected option if we're still
286  * on the parent button of the dropdown (behaviour of the dropdowns in the main toolbar). */
287  if (GetWidgetFromPos(this, pt.x, pt.y) == widget) {
288  this->OnDropdownSelect(widget, index);
289  }
290  }
291 
292  /* Raise the dropdown button */
293  NWidgetCore *nwi2 = this->GetWidget<NWidgetCore>(widget);
294  if ((nwi2->type & WWT_MASK) == NWID_BUTTON_DROPDOWN) {
295  nwi2->disp_flags &= ~ND_DROPDOWN_ACTIVE;
296  } else {
297  this->RaiseWidget(widget);
298  }
299  this->SetWidgetDirty(widget);
300 }
301 
307 const Scrollbar *Window::GetScrollbar(uint widnum) const
308 {
309  return this->GetWidget<NWidgetScrollbar>(widnum);
310 }
311 
318 {
319  return this->GetWidget<NWidgetScrollbar>(widnum);
320 }
321 
327 const QueryString *Window::GetQueryString(uint widnum) const
328 {
329  const SmallMap<int, QueryString*>::Pair *query = this->querystrings.Find(widnum);
330  return query != this->querystrings.End() ? query->second : NULL;
331 }
332 
339 {
340  SmallMap<int, QueryString*>::Pair *query = this->querystrings.Find(widnum);
341  return query != this->querystrings.End() ? query->second : NULL;
342 }
343 
348 /* virtual */ const char *Window::GetFocusedText() const
349 {
350  if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
351  return this->GetQueryString(this->nested_focus->index)->GetText();
352  }
353 
354  return NULL;
355 }
356 
361 /* virtual */ const char *Window::GetCaret() const
362 {
363  if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
364  return this->GetQueryString(this->nested_focus->index)->GetCaret();
365  }
366 
367  return NULL;
368 }
369 
375 /* virtual */ const char *Window::GetMarkedText(size_t *length) const
376 {
377  if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
378  return this->GetQueryString(this->nested_focus->index)->GetMarkedText(length);
379  }
380 
381  return NULL;
382 }
383 
388 /* virtual */ Point Window::GetCaretPosition() const
389 {
390  if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
391  return this->GetQueryString(this->nested_focus->index)->GetCaretPosition(this, this->nested_focus->index);
392  }
393 
394  Point pt = {0, 0};
395  return pt;
396 }
397 
404 /* virtual */ Rect Window::GetTextBoundingRect(const char *from, const char *to) const
405 {
406  if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
407  return this->GetQueryString(this->nested_focus->index)->GetBoundingRect(this, this->nested_focus->index, from, to);
408  }
409 
410  Rect r = {0, 0, 0, 0};
411  return r;
412 }
413 
419 /* virtual */ const char *Window::GetTextCharacterAtPosition(const Point &pt) const
420 {
421  if (this->nested_focus != NULL && this->nested_focus->type == WWT_EDITBOX) {
422  return this->GetQueryString(this->nested_focus->index)->GetCharAtPosition(this, this->nested_focus->index, pt);
423  }
424 
425  return NULL;
426 }
427 
433 {
434  if (_focused_window == w) return;
435 
436  /* Invalidate focused widget */
437  if (_focused_window != NULL) {
438  if (_focused_window->nested_focus != NULL) _focused_window->nested_focus->SetDirty(_focused_window);
439  }
440 
441  /* Remember which window was previously focused */
442  Window *old_focused = _focused_window;
443  _focused_window = w;
444 
445  /* So we can inform it that it lost focus */
446  if (old_focused != NULL) old_focused->OnFocusLost();
447  if (_focused_window != NULL) _focused_window->OnFocus();
448 }
449 
456 {
457  if (_focused_window == NULL) return false;
458 
459  /* The console does not have an edit box so a special case is needed. */
460  if (_focused_window->window_class == WC_CONSOLE) return true;
461 
462  return _focused_window->nested_focus != NULL && _focused_window->nested_focus->type == WWT_EDITBOX;
463 }
464 
469 {
470  if (this->nested_focus != NULL) {
472 
473  /* Repaint the widget that lost focus. A focused edit box may else leave the caret on the screen. */
474  this->nested_focus->SetDirty(this);
475  this->nested_focus = NULL;
476  }
477 }
478 
484 bool Window::SetFocusedWidget(int widget_index)
485 {
486  /* Do nothing if widget_index is already focused, or if it wasn't a valid widget. */
487  if ((uint)widget_index >= this->nested_array_size) return false;
488 
489  assert(this->nested_array[widget_index] != NULL); // Setting focus to a non-existing widget is a bad idea.
490  if (this->nested_focus != NULL) {
491  if (this->GetWidget<NWidgetCore>(widget_index) == this->nested_focus) return false;
492 
493  /* Repaint the widget that lost focus. A focused edit box may else leave the caret on the screen. */
494  this->nested_focus->SetDirty(this);
496  }
497  this->nested_focus = this->GetWidget<NWidgetCore>(widget_index);
498  return true;
499 }
500 
505 {
507 }
508 
516 void CDECL Window::SetWidgetsDisabledState(bool disab_stat, int widgets, ...)
517 {
518  va_list wdg_list;
519 
520  va_start(wdg_list, widgets);
521 
522  while (widgets != WIDGET_LIST_END) {
523  SetWidgetDisabledState(widgets, disab_stat);
524  widgets = va_arg(wdg_list, int);
525  }
526 
527  va_end(wdg_list);
528 }
529 
535 void CDECL Window::SetWidgetsLoweredState(bool lowered_stat, int widgets, ...)
536 {
537  va_list wdg_list;
538 
539  va_start(wdg_list, widgets);
540 
541  while (widgets != WIDGET_LIST_END) {
542  SetWidgetLoweredState(widgets, lowered_stat);
543  widgets = va_arg(wdg_list, int);
544  }
545 
546  va_end(wdg_list);
547 }
548 
553 void Window::RaiseButtons(bool autoraise)
554 {
555  for (uint i = 0; i < this->nested_array_size; i++) {
556  if (this->nested_array[i] == NULL) continue;
557  WidgetType type = this->nested_array[i]->type;
558  if (((type & ~WWB_PUSHBUTTON) < WWT_LAST || type == NWID_PUSHBUTTON_DROPDOWN) &&
559  (!autoraise || (type & WWB_PUSHBUTTON) || type == WWT_EDITBOX) && this->IsWidgetLowered(i)) {
560  this->RaiseWidget(i);
561  this->SetWidgetDirty(i);
562  }
563  }
564 
565  /* Special widgets without widget index */
566  NWidgetCore *wid = this->nested_root != NULL ? (NWidgetCore*)this->nested_root->GetWidgetOfType(WWT_DEFSIZEBOX) : NULL;
567  if (wid != NULL) {
568  wid->SetLowered(false);
569  wid->SetDirty(this);
570  }
571 }
572 
577 void Window::SetWidgetDirty(byte widget_index) const
578 {
579  /* Sometimes this function is called before the window is even fully initialized */
580  if (this->nested_array == NULL) return;
581 
582  this->nested_array[widget_index]->SetDirty(this);
583 }
584 
591 {
592  if (hotkey < 0) return ES_NOT_HANDLED;
593 
594  NWidgetCore *nw = this->GetWidget<NWidgetCore>(hotkey);
595  if (nw == NULL || nw->IsDisabled()) return ES_NOT_HANDLED;
596 
597  if (nw->type == WWT_EDITBOX) {
598  if (this->IsShaded()) return ES_NOT_HANDLED;
599 
600  /* Focus editbox */
601  this->SetFocusedWidget(hotkey);
602  SetFocusedWindow(this);
603  } else {
604  /* Click button */
605  this->OnClick(Point(), hotkey, 1);
606  }
607  return ES_HANDLED;
608 }
609 
615 void Window::HandleButtonClick(byte widget)
616 {
617  this->LowerWidget(widget);
618  this->SetTimeout();
619  this->SetWidgetDirty(widget);
620 }
621 
622 static void StartWindowDrag(Window *w);
623 static void StartWindowSizing(Window *w, bool to_left);
624 
632 static void DispatchLeftClickEvent(Window *w, int x, int y, int click_count)
633 {
634  NWidgetCore *nw = w->nested_root->GetWidgetFromPos(x, y);
635  WidgetType widget_type = (nw != NULL) ? nw->type : WWT_EMPTY;
636 
637  bool focused_widget_changed = false;
638  /* If clicked on a window that previously did dot have focus */
639  if (_focused_window != w && // We already have focus, right?
640  (w->window_desc->flags & WDF_NO_FOCUS) == 0 && // Don't lose focus to toolbars
641  widget_type != WWT_CLOSEBOX) { // Don't change focused window if 'X' (close button) was clicked
642  focused_widget_changed = true;
643  SetFocusedWindow(w);
644  }
645 
646  if (nw == NULL) return; // exit if clicked outside of widgets
647 
648  /* don't allow any interaction if the button has been disabled */
649  if (nw->IsDisabled()) return;
650 
651  int widget_index = nw->index;
652 
653  /* Clicked on a widget that is not disabled.
654  * So unless the clicked widget is the caption bar, change focus to this widget.
655  * Exception: In the OSK we always want the editbox to stay focussed. */
656  if (widget_type != WWT_CAPTION && w->window_class != WC_OSK) {
657  /* focused_widget_changed is 'now' only true if the window this widget
658  * is in gained focus. In that case it must remain true, also if the
659  * local widget focus did not change. As such it's the logical-or of
660  * both changed states.
661  *
662  * If this is not preserved, then the OSK window would be opened when
663  * a user has the edit box focused and then click on another window and
664  * then back again on the edit box (to type some text).
665  */
666  focused_widget_changed |= w->SetFocusedWidget(widget_index);
667  }
668 
669  /* Close any child drop down menus. If the button pressed was the drop down
670  * list's own button, then we should not process the click any further. */
671  if (HideDropDownMenu(w) == widget_index && widget_index >= 0) return;
672 
673  if ((widget_type & ~WWB_PUSHBUTTON) < WWT_LAST && (widget_type & WWB_PUSHBUTTON)) w->HandleButtonClick(widget_index);
674 
675  Point pt = { x, y };
676 
677  switch (widget_type) {
678  case NWID_VSCROLLBAR:
679  case NWID_HSCROLLBAR:
680  ScrollbarClickHandler(w, nw, x, y);
681  break;
682 
683  case WWT_EDITBOX: {
684  QueryString *query = w->GetQueryString(widget_index);
685  if (query != NULL) query->ClickEditBox(w, pt, widget_index, click_count, focused_widget_changed);
686  break;
687  }
688 
689  case WWT_CLOSEBOX: // 'X'
690  delete w;
691  return;
692 
693  case WWT_CAPTION: // 'Title bar'
694  StartWindowDrag(w);
695  return;
696 
697  case WWT_RESIZEBOX:
698  /* When the resize widget is on the left size of the window
699  * we assume that that button is used to resize to the left. */
700  StartWindowSizing(w, (int)nw->pos_x < (w->width / 2));
701  nw->SetDirty(w);
702  return;
703 
704  case WWT_DEFSIZEBOX: {
705  if (_ctrl_pressed) {
706  w->window_desc->pref_width = w->width;
707  w->window_desc->pref_height = w->height;
708  } else {
709  int16 def_width = max<int16>(min(w->window_desc->GetDefaultWidth(), _screen.width), w->nested_root->smallest_x);
710  int16 def_height = max<int16>(min(w->window_desc->GetDefaultHeight(), _screen.height - 50), w->nested_root->smallest_y);
711 
712  int dx = (w->resize.step_width == 0) ? 0 : def_width - w->width;
713  int dy = (w->resize.step_height == 0) ? 0 : def_height - w->height;
714  /* dx and dy has to go by step.. calculate it.
715  * The cast to int is necessary else dx/dy are implicitly casted to unsigned int, which won't work. */
716  if (w->resize.step_width > 1) dx -= dx % (int)w->resize.step_width;
717  if (w->resize.step_height > 1) dy -= dy % (int)w->resize.step_height;
718  ResizeWindow(w, dx, dy, false);
719  }
720 
721  nw->SetLowered(true);
722  nw->SetDirty(w);
723  w->SetTimeout();
724  break;
725  }
726 
727  case WWT_DEBUGBOX:
729  break;
730 
731  case WWT_SHADEBOX:
732  nw->SetDirty(w);
733  w->SetShaded(!w->IsShaded());
734  return;
735 
736  case WWT_STICKYBOX:
737  w->flags ^= WF_STICKY;
738  nw->SetDirty(w);
739  if (_ctrl_pressed) w->window_desc->pref_sticky = (w->flags & WF_STICKY) != 0;
740  return;
741 
742  default:
743  break;
744  }
745 
746  /* Widget has no index, so the window is not interested in it. */
747  if (widget_index < 0) return;
748 
749  /* Check if the widget is highlighted; if so, disable highlight and dispatch an event to the GameScript */
750  if (w->IsWidgetHighlighted(widget_index)) {
751  w->SetWidgetHighlight(widget_index, TC_INVALID);
752  Game::NewEvent(new ScriptEventWindowWidgetClick((ScriptWindow::WindowClass)w->window_class, w->window_number, widget_index));
753  }
754 
755  w->OnClick(pt, widget_index, click_count);
756 }
757 
764 static void DispatchRightClickEvent(Window *w, int x, int y)
765 {
766  NWidgetCore *wid = w->nested_root->GetWidgetFromPos(x, y);
767  if (wid == NULL) return;
768 
769  /* No widget to handle, or the window is not interested in it. */
770  if (wid->index >= 0) {
771  Point pt = { x, y };
772  if (w->OnRightClick(pt, wid->index)) return;
773  }
774 
775  /* Right-click close is enabled and there is a closebox */
777  delete w;
778  } else if (_settings_client.gui.hover_delay_ms == 0 && wid->tool_tip != 0) {
779  GuiShowTooltips(w, wid->tool_tip, 0, NULL, TCC_RIGHT_CLICK);
780  }
781 }
782 
789 static void DispatchHoverEvent(Window *w, int x, int y)
790 {
791  NWidgetCore *wid = w->nested_root->GetWidgetFromPos(x, y);
792 
793  /* No widget to handle */
794  if (wid == NULL) return;
795 
796  /* Show the tooltip if there is any */
797  if (wid->tool_tip != 0) {
798  GuiShowTooltips(w, wid->tool_tip);
799  return;
800  }
801 
802  /* Widget has no index, so the window is not interested in it. */
803  if (wid->index < 0) return;
804 
805  Point pt = { x, y };
806  w->OnHover(pt, wid->index);
807 }
808 
816 static void DispatchMouseWheelEvent(Window *w, NWidgetCore *nwid, int wheel)
817 {
818  if (nwid == NULL) return;
819 
820  /* Using wheel on caption/shade-box shades or unshades the window. */
821  if (nwid->type == WWT_CAPTION || nwid->type == WWT_SHADEBOX) {
822  w->SetShaded(wheel < 0);
823  return;
824  }
825 
826  /* Wheeling a vertical scrollbar. */
827  if (nwid->type == NWID_VSCROLLBAR) {
828  NWidgetScrollbar *sb = static_cast<NWidgetScrollbar *>(nwid);
829  if (sb->GetCount() > sb->GetCapacity()) {
830  sb->UpdatePosition(wheel);
831  w->SetDirty();
832  }
833  return;
834  }
835 
836  /* Scroll the widget attached to the scrollbar. */
837  Scrollbar *sb = (nwid->scrollbar_index >= 0 ? w->GetScrollbar(nwid->scrollbar_index) : NULL);
838  if (sb != NULL && sb->GetCount() > sb->GetCapacity()) {
839  sb->UpdatePosition(wheel);
840  w->SetDirty();
841  }
842 }
843 
849 static bool MayBeShown(const Window *w)
850 {
851  /* If we're not modal, everything is okay. */
852  if (!HasModalProgress()) return true;
853 
854  switch (w->window_class) {
855  case WC_MAIN_WINDOW:
856  case WC_MODAL_PROGRESS:
858  return true;
859 
860  default:
861  return false;
862  }
863 }
864 
877 static void DrawOverlappedWindow(Window *w, int left, int top, int right, int bottom)
878 {
879  const Window *v;
881  if (MayBeShown(v) &&
882  right > v->left &&
883  bottom > v->top &&
884  left < v->left + v->width &&
885  top < v->top + v->height) {
886  /* v and rectangle intersect with each other */
887  int x;
888 
889  if (left < (x = v->left)) {
890  DrawOverlappedWindow(w, left, top, x, bottom);
891  DrawOverlappedWindow(w, x, top, right, bottom);
892  return;
893  }
894 
895  if (right > (x = v->left + v->width)) {
896  DrawOverlappedWindow(w, left, top, x, bottom);
897  DrawOverlappedWindow(w, x, top, right, bottom);
898  return;
899  }
900 
901  if (top < (x = v->top)) {
902  DrawOverlappedWindow(w, left, top, right, x);
903  DrawOverlappedWindow(w, left, x, right, bottom);
904  return;
905  }
906 
907  if (bottom > (x = v->top + v->height)) {
908  DrawOverlappedWindow(w, left, top, right, x);
909  DrawOverlappedWindow(w, left, x, right, bottom);
910  return;
911  }
912 
913  return;
914  }
915  }
916 
917  /* Setup blitter, and dispatch a repaint event to window *wz */
918  DrawPixelInfo *dp = _cur_dpi;
919  dp->width = right - left;
920  dp->height = bottom - top;
921  dp->left = left - w->left;
922  dp->top = top - w->top;
923  dp->pitch = _screen.pitch;
924  dp->dst_ptr = BlitterFactory::GetCurrentBlitter()->MoveTo(_screen.dst_ptr, left, top);
925  dp->zoom = ZOOM_LVL_NORMAL;
926  w->OnPaint();
927 }
928 
937 void DrawOverlappedWindowForAll(int left, int top, int right, int bottom)
938 {
939  Window *w;
940  DrawPixelInfo bk;
941  _cur_dpi = &bk;
942 
943  FOR_ALL_WINDOWS_FROM_BACK(w) {
944  if (MayBeShown(w) &&
945  right > w->left &&
946  bottom > w->top &&
947  left < w->left + w->width &&
948  top < w->top + w->height) {
949  /* Window w intersects with the rectangle => needs repaint */
950  DrawOverlappedWindow(w, max(left, w->left), max(top, w->top), min(right, w->left + w->width), min(bottom, w->top + w->height));
951  }
952  }
953 }
954 
959 void Window::SetDirty() const
960 {
961  SetDirtyBlocks(this->left, this->top, this->left + this->width, this->top + this->height);
962 }
963 
970 void Window::ReInit(int rx, int ry)
971 {
972  this->SetDirty(); // Mark whole current window as dirty.
973 
974  /* Save current size. */
975  int window_width = this->width;
976  int window_height = this->height;
977 
978  this->OnInit();
979  /* Re-initialize the window from the ground up. No need to change the nested_array, as all widgets stay where they are. */
980  this->nested_root->SetupSmallestSize(this, false);
981  this->nested_root->AssignSizePosition(ST_SMALLEST, 0, 0, this->nested_root->smallest_x, this->nested_root->smallest_y, _current_text_dir == TD_RTL);
982  this->width = this->nested_root->smallest_x;
983  this->height = this->nested_root->smallest_y;
984  this->resize.step_width = this->nested_root->resize_x;
985  this->resize.step_height = this->nested_root->resize_y;
986 
987  /* Resize as close to the original size + requested resize as possible. */
988  window_width = max(window_width + rx, this->width);
989  window_height = max(window_height + ry, this->height);
990  int dx = (this->resize.step_width == 0) ? 0 : window_width - this->width;
991  int dy = (this->resize.step_height == 0) ? 0 : window_height - this->height;
992  /* dx and dy has to go by step.. calculate it.
993  * The cast to int is necessary else dx/dy are implicitly casted to unsigned int, which won't work. */
994  if (this->resize.step_width > 1) dx -= dx % (int)this->resize.step_width;
995  if (this->resize.step_height > 1) dy -= dy % (int)this->resize.step_height;
996 
997  ResizeWindow(this, dx, dy);
998  /* ResizeWindow() does this->SetDirty() already, no need to do it again here. */
999 }
1000 
1006 void Window::SetShaded(bool make_shaded)
1007 {
1008  if (this->shade_select == NULL) return;
1009 
1010  int desired = make_shaded ? SZSP_HORIZONTAL : 0;
1011  if (this->shade_select->shown_plane != desired) {
1012  if (make_shaded) {
1013  if (this->nested_focus != NULL) this->UnfocusFocusedWidget();
1014  this->unshaded_size.width = this->width;
1015  this->unshaded_size.height = this->height;
1016  this->shade_select->SetDisplayedPlane(desired);
1017  this->ReInit(0, -this->height);
1018  } else {
1019  this->shade_select->SetDisplayedPlane(desired);
1020  int dx = ((int)this->unshaded_size.width > this->width) ? (int)this->unshaded_size.width - this->width : 0;
1021  int dy = ((int)this->unshaded_size.height > this->height) ? (int)this->unshaded_size.height - this->height : 0;
1022  this->ReInit(dx, dy);
1023  }
1024  }
1025 }
1026 
1034 {
1035  Window *v;
1036  FOR_ALL_WINDOWS_FROM_BACK(v) {
1037  if ((wc == WC_INVALID || wc == v->window_class) && v->parent == w) return v;
1038  }
1039 
1040  return NULL;
1041 }
1042 
1048 {
1049  Window *child = FindChildWindow(this, wc);
1050  while (child != NULL) {
1051  delete child;
1052  child = FindChildWindow(this, wc);
1053  }
1054 }
1055 
1060 {
1061  if (_thd.window_class == this->window_class &&
1062  _thd.window_number == this->window_number) {
1064  }
1065 
1066  /* Prevent Mouseover() from resetting mouse-over coordinates on a non-existing window */
1067  if (_mouseover_last_w == this) _mouseover_last_w = NULL;
1068 
1069  /* We can't scroll the window when it's closed. */
1070  if (_last_scroll_window == this) _last_scroll_window = NULL;
1071 
1072  /* Make sure we don't try to access this window as the focused window when it doesn't exist anymore. */
1073  if (_focused_window == this) {
1074  this->OnFocusLost();
1075  _focused_window = NULL;
1076  }
1077 
1078  this->DeleteChildWindows();
1079 
1080  if (this->viewport != NULL) DeleteWindowViewport(this);
1081 
1082  this->SetDirty();
1083 
1084  free(this->nested_array); // Contents is released through deletion of #nested_root.
1085  delete this->nested_root;
1086 
1087  /*
1088  * Make fairly sure that this is written, and not "optimized" away.
1089  * The delete operator is overwritten to not delete it; the deletion
1090  * happens at a later moment in time after the window has been
1091  * removed from the list of windows to prevent issues with items
1092  * being removed during the iteration as not one but more windows
1093  * may be removed by a single call to ~Window by means of the
1094  * DeleteChildWindows function.
1095  */
1096  const_cast<volatile WindowClass &>(this->window_class) = WC_INVALID;
1097 }
1098 
1106 {
1107  Window *w;
1108  FOR_ALL_WINDOWS_FROM_BACK(w) {
1109  if (w->window_class == cls && w->window_number == number) return w;
1110  }
1111 
1112  return NULL;
1113 }
1114 
1122 {
1123  Window *w;
1124  FOR_ALL_WINDOWS_FROM_BACK(w) {
1125  if (w->window_class == cls) return w;
1126  }
1127 
1128  return NULL;
1129 }
1130 
1137 void DeleteWindowById(WindowClass cls, WindowNumber number, bool force)
1138 {
1139  Window *w = FindWindowById(cls, number);
1140  if (force || w == NULL ||
1141  (w->flags & WF_STICKY) == 0) {
1142  delete w;
1143  }
1144 }
1145 
1151 {
1152  Window *w;
1153 
1154 restart_search:
1155  /* When we find the window to delete, we need to restart the search
1156  * as deleting this window could cascade in deleting (many) others
1157  * anywhere in the z-array */
1158  FOR_ALL_WINDOWS_FROM_BACK(w) {
1159  if (w->window_class == cls) {
1160  delete w;
1161  goto restart_search;
1162  }
1163  }
1164 }
1165 
1173 {
1174  Window *w;
1175 
1176 restart_search:
1177  /* When we find the window to delete, we need to restart the search
1178  * as deleting this window could cascade in deleting (many) others
1179  * anywhere in the z-array */
1180  FOR_ALL_WINDOWS_FROM_BACK(w) {
1181  if (w->owner == id) {
1182  delete w;
1183  goto restart_search;
1184  }
1185  }
1186 
1187  /* Also delete the company specific windows that don't have a company-colour. */
1189 }
1190 
1198 void ChangeWindowOwner(Owner old_owner, Owner new_owner)
1199 {
1200  Window *w;
1201  FOR_ALL_WINDOWS_FROM_BACK(w) {
1202  if (w->owner != old_owner) continue;
1203 
1204  switch (w->window_class) {
1205  case WC_COMPANY_COLOUR:
1206  case WC_FINANCES:
1207  case WC_STATION_LIST:
1208  case WC_TRAINS_LIST:
1209  case WC_ROADVEH_LIST:
1210  case WC_SHIPS_LIST:
1211  case WC_AIRCRAFT_LIST:
1212  case WC_BUY_COMPANY:
1213  case WC_COMPANY:
1215  case WC_VEHICLE_ORDERS: // Changing owner would also require changing WindowDesc, which is not possible; however keeping the old one crashes because of missing widgets etc.. See ShowOrdersWindow().
1216  continue;
1217 
1218  default:
1219  w->owner = new_owner;
1220  break;
1221  }
1222  }
1223 }
1224 
1225 static void BringWindowToFront(Window *w);
1226 
1235 {
1236  Window *w = FindWindowById(cls, number);
1237 
1238  if (w != NULL) {
1239  if (w->IsShaded()) w->SetShaded(false); // Restore original window size if it was shaded.
1240 
1241  w->SetWhiteBorder();
1242  BringWindowToFront(w);
1243  w->SetDirty();
1244  }
1245 
1246  return w;
1247 }
1248 
1249 static inline bool IsVitalWindow(const Window *w)
1250 {
1251  switch (w->window_class) {
1252  case WC_MAIN_TOOLBAR:
1253  case WC_STATUS_BAR:
1254  case WC_NEWS_WINDOW:
1255  case WC_SEND_NETWORK_MSG:
1256  return true;
1257 
1258  default:
1259  return false;
1260  }
1261 }
1262 
1271 static uint GetWindowZPriority(const Window *w)
1272 {
1273  assert(w->window_class != WC_INVALID);
1274 
1275  uint z_priority = 0;
1276 
1277  switch (w->window_class) {
1278  case WC_ENDSCREEN:
1279  ++z_priority;
1280 
1281  case WC_HIGHSCORE:
1282  ++z_priority;
1283 
1284  case WC_TOOLTIPS:
1285  ++z_priority;
1286 
1287  case WC_DROPDOWN_MENU:
1288  ++z_priority;
1289 
1290  case WC_MAIN_TOOLBAR:
1291  case WC_STATUS_BAR:
1292  ++z_priority;
1293 
1294  case WC_OSK:
1295  ++z_priority;
1296 
1297  case WC_QUERY_STRING:
1298  case WC_SEND_NETWORK_MSG:
1299  ++z_priority;
1300 
1301  case WC_ERRMSG:
1303  case WC_MODAL_PROGRESS:
1305  case WC_SAVE_PRESET:
1306  ++z_priority;
1307 
1308  case WC_GENERATE_LANDSCAPE:
1309  case WC_SAVELOAD:
1310  case WC_GAME_OPTIONS:
1311  case WC_CUSTOM_CURRENCY:
1312  case WC_NETWORK_WINDOW:
1313  case WC_GRF_PARAMETERS:
1314  case WC_AI_LIST:
1315  case WC_AI_SETTINGS:
1316  case WC_TEXTFILE:
1317  ++z_priority;
1318 
1319  case WC_CONSOLE:
1320  ++z_priority;
1321 
1322  case WC_NEWS_WINDOW:
1323  ++z_priority;
1324 
1325  default:
1326  ++z_priority;
1327 
1328  case WC_MAIN_WINDOW:
1329  return z_priority;
1330  }
1331 }
1332 
1338 {
1339  assert(w->z_front == NULL && w->z_back == NULL);
1340 
1341  if (_z_front_window == NULL) {
1342  /* It's the only window. */
1343  _z_front_window = _z_back_window = w;
1344  w->z_front = w->z_back = NULL;
1345  } else {
1346  /* Search down the z-ordering for its location. */
1347  Window *v = _z_front_window;
1348  uint last_z_priority = UINT_MAX;
1349  while (v != NULL && (v->window_class == WC_INVALID || GetWindowZPriority(v) > GetWindowZPriority(w))) {
1350  if (v->window_class != WC_INVALID) {
1351  /* Sanity check z-ordering, while we're at it. */
1352  assert(last_z_priority >= GetWindowZPriority(v));
1353  last_z_priority = GetWindowZPriority(v);
1354  }
1355 
1356  v = v->z_back;
1357  }
1358 
1359  if (v == NULL) {
1360  /* It's the new back window. */
1361  w->z_front = _z_back_window;
1362  w->z_back = NULL;
1363  _z_back_window->z_back = w;
1364  _z_back_window = w;
1365  } else if (v == _z_front_window) {
1366  /* It's the new front window. */
1367  w->z_front = NULL;
1368  w->z_back = _z_front_window;
1369  _z_front_window->z_front = w;
1370  _z_front_window = w;
1371  } else {
1372  /* It's somewhere else in the z-ordering. */
1373  w->z_front = v->z_front;
1374  w->z_back = v;
1375  v->z_front->z_back = w;
1376  v->z_front = w;
1377  }
1378  }
1379 }
1380 
1381 
1387 {
1388  if (w->z_front == NULL) {
1389  assert(_z_front_window == w);
1390  _z_front_window = w->z_back;
1391  } else {
1392  w->z_front->z_back = w->z_back;
1393  }
1394 
1395  if (w->z_back == NULL) {
1396  assert(_z_back_window == w);
1397  _z_back_window = w->z_front;
1398  } else {
1399  w->z_back->z_front = w->z_front;
1400  }
1401 
1402  w->z_front = w->z_back = NULL;
1403 }
1404 
1411 {
1414 
1415  w->SetDirty();
1416 }
1417 
1427 {
1428  /* Set up window properties; some of them are needed to set up smallest size below */
1429  this->window_class = this->window_desc->cls;
1430  this->SetWhiteBorder();
1431  if (this->window_desc->default_pos == WDP_CENTER) this->flags |= WF_CENTERED;
1432  this->owner = INVALID_OWNER;
1433  this->nested_focus = NULL;
1434  this->window_number = window_number;
1435 
1436  this->OnInit();
1437  /* Initialize nested widget tree. */
1438  if (this->nested_array == NULL) {
1439  this->nested_array = CallocT<NWidgetBase *>(this->nested_array_size);
1440  this->nested_root->SetupSmallestSize(this, true);
1441  } else {
1442  this->nested_root->SetupSmallestSize(this, false);
1443  }
1444  /* Initialize to smallest size. */
1445  this->nested_root->AssignSizePosition(ST_SMALLEST, 0, 0, this->nested_root->smallest_x, this->nested_root->smallest_y, _current_text_dir == TD_RTL);
1446 
1447  /* Further set up window properties,
1448  * this->left, this->top, this->width, this->height, this->resize.width, and this->resize.height are initialized later. */
1449  this->resize.step_width = this->nested_root->resize_x;
1450  this->resize.step_height = this->nested_root->resize_y;
1451 
1452  /* Give focus to the opened window unless a text box
1453  * of focused window has focus (so we don't interrupt typing). But if the new
1454  * window has a text box, then take focus anyway. */
1456 
1457  /* Insert the window into the correct location in the z-ordering. */
1458  AddWindowToZOrdering(this);
1459 }
1460 
1468 void Window::InitializePositionSize(int x, int y, int sm_width, int sm_height)
1469 {
1470  this->left = x;
1471  this->top = y;
1472  this->width = sm_width;
1473  this->height = sm_height;
1474 }
1475 
1486 void Window::FindWindowPlacementAndResize(int def_width, int def_height)
1487 {
1488  def_width = max(def_width, this->width); // Don't allow default size to be smaller than smallest size
1489  def_height = max(def_height, this->height);
1490  /* Try to make windows smaller when our window is too small.
1491  * w->(width|height) is normally the same as min_(width|height),
1492  * but this way the GUIs can be made a little more dynamic;
1493  * one can use the same spec for multiple windows and those
1494  * can then determine the real minimum size of the window. */
1495  if (this->width != def_width || this->height != def_height) {
1496  /* Think about the overlapping toolbars when determining the minimum window size */
1497  int free_height = _screen.height;
1498  const Window *wt = FindWindowById(WC_STATUS_BAR, 0);
1499  if (wt != NULL) free_height -= wt->height;
1501  if (wt != NULL) free_height -= wt->height;
1502 
1503  int enlarge_x = max(min(def_width - this->width, _screen.width - this->width), 0);
1504  int enlarge_y = max(min(def_height - this->height, free_height - this->height), 0);
1505 
1506  /* X and Y has to go by step.. calculate it.
1507  * The cast to int is necessary else x/y are implicitly casted to
1508  * unsigned int, which won't work. */
1509  if (this->resize.step_width > 1) enlarge_x -= enlarge_x % (int)this->resize.step_width;
1510  if (this->resize.step_height > 1) enlarge_y -= enlarge_y % (int)this->resize.step_height;
1511 
1512  ResizeWindow(this, enlarge_x, enlarge_y);
1513  /* ResizeWindow() calls this->OnResize(). */
1514  } else {
1515  /* Always call OnResize; that way the scrollbars and matrices get initialized. */
1516  this->OnResize();
1517  }
1518 
1519  int nx = this->left;
1520  int ny = this->top;
1521 
1522  if (nx + this->width > _screen.width) nx -= (nx + this->width - _screen.width);
1523 
1524  const Window *wt = FindWindowById(WC_MAIN_TOOLBAR, 0);
1525  ny = max(ny, (wt == NULL || this == wt || this->top == 0) ? 0 : wt->height);
1526  nx = max(nx, 0);
1527 
1528  if (this->viewport != NULL) {
1529  this->viewport->left += nx - this->left;
1530  this->viewport->top += ny - this->top;
1531  }
1532  this->left = nx;
1533  this->top = ny;
1534 
1535  this->SetDirty();
1536 }
1537 
1549 static bool IsGoodAutoPlace1(int left, int top, int width, int height, Point &pos)
1550 {
1551  int right = width + left;
1552  int bottom = height + top;
1553 
1554  const Window *main_toolbar = FindWindowByClass(WC_MAIN_TOOLBAR);
1555  if (left < 0 || (main_toolbar != NULL && top < main_toolbar->height) || right > _screen.width || bottom > _screen.height) return false;
1556 
1557  /* Make sure it is not obscured by any window. */
1558  const Window *w;
1559  FOR_ALL_WINDOWS_FROM_BACK(w) {
1560  if (w->window_class == WC_MAIN_WINDOW) continue;
1561 
1562  if (right > w->left &&
1563  w->left + w->width > left &&
1564  bottom > w->top &&
1565  w->top + w->height > top) {
1566  return false;
1567  }
1568  }
1569 
1570  pos.x = left;
1571  pos.y = top;
1572  return true;
1573 }
1574 
1586 static bool IsGoodAutoPlace2(int left, int top, int width, int height, Point &pos)
1587 {
1588  /* Left part of the rectangle may be at most 1/4 off-screen,
1589  * right part of the rectangle may be at most 1/2 off-screen
1590  */
1591  if (left < -(width >> 2) || left > _screen.width - (width >> 1)) return false;
1592  /* Bottom part of the rectangle may be at most 1/4 off-screen */
1593  if (top < 22 || top > _screen.height - (height >> 2)) return false;
1594 
1595  /* Make sure it is not obscured by any window. */
1596  const Window *w;
1597  FOR_ALL_WINDOWS_FROM_BACK(w) {
1598  if (w->window_class == WC_MAIN_WINDOW) continue;
1599 
1600  if (left + width > w->left &&
1601  w->left + w->width > left &&
1602  top + height > w->top &&
1603  w->top + w->height > top) {
1604  return false;
1605  }
1606  }
1607 
1608  pos.x = left;
1609  pos.y = top;
1610  return true;
1611 }
1612 
1619 static Point GetAutoPlacePosition(int width, int height)
1620 {
1621  Point pt;
1622 
1623  /* First attempt, try top-left of the screen */
1624  const Window *main_toolbar = FindWindowByClass(WC_MAIN_TOOLBAR);
1625  if (IsGoodAutoPlace1(0, main_toolbar != NULL ? main_toolbar->height + 2 : 2, width, height, pt)) return pt;
1626 
1627  /* Second attempt, try around all existing windows with a distance of 2 pixels.
1628  * The new window must be entirely on-screen, and not overlap with an existing window.
1629  * Eight starting points are tried, two at each corner.
1630  */
1631  const Window *w;
1632  FOR_ALL_WINDOWS_FROM_BACK(w) {
1633  if (w->window_class == WC_MAIN_WINDOW) continue;
1634 
1635  if (IsGoodAutoPlace1(w->left + w->width + 2, w->top, width, height, pt)) return pt;
1636  if (IsGoodAutoPlace1(w->left - width - 2, w->top, width, height, pt)) return pt;
1637  if (IsGoodAutoPlace1(w->left, w->top + w->height + 2, width, height, pt)) return pt;
1638  if (IsGoodAutoPlace1(w->left, w->top - height - 2, width, height, pt)) return pt;
1639  if (IsGoodAutoPlace1(w->left + w->width + 2, w->top + w->height - height, width, height, pt)) return pt;
1640  if (IsGoodAutoPlace1(w->left - width - 2, w->top + w->height - height, width, height, pt)) return pt;
1641  if (IsGoodAutoPlace1(w->left + w->width - width, w->top + w->height + 2, width, height, pt)) return pt;
1642  if (IsGoodAutoPlace1(w->left + w->width - width, w->top - height - 2, width, height, pt)) return pt;
1643  }
1644 
1645  /* Third attempt, try around all existing windows with a distance of 2 pixels.
1646  * The new window may be partly off-screen, and must not overlap with an existing window.
1647  * Only four starting points are tried.
1648  */
1649  FOR_ALL_WINDOWS_FROM_BACK(w) {
1650  if (w->window_class == WC_MAIN_WINDOW) continue;
1651 
1652  if (IsGoodAutoPlace2(w->left + w->width + 2, w->top, width, height, pt)) return pt;
1653  if (IsGoodAutoPlace2(w->left - width - 2, w->top, width, height, pt)) return pt;
1654  if (IsGoodAutoPlace2(w->left, w->top + w->height + 2, width, height, pt)) return pt;
1655  if (IsGoodAutoPlace2(w->left, w->top - height - 2, width, height, pt)) return pt;
1656  }
1657 
1658  /* Fourth and final attempt, put window at diagonal starting from (0, 24), try multiples
1659  * of (+5, +5)
1660  */
1661  int left = 0, top = 24;
1662 
1663 restart:
1664  FOR_ALL_WINDOWS_FROM_BACK(w) {
1665  if (w->left == left && w->top == top) {
1666  left += 5;
1667  top += 5;
1668  goto restart;
1669  }
1670  }
1671 
1672  pt.x = left;
1673  pt.y = top;
1674  return pt;
1675 }
1676 
1684 {
1685  const Window *w = FindWindowById(WC_MAIN_TOOLBAR, 0);
1686  assert(w != NULL);
1687  Point pt = { _current_text_dir == TD_RTL ? w->left : (w->left + w->width) - window_width, w->top + w->height };
1688  return pt;
1689 }
1690 
1708 static Point LocalGetWindowPlacement(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)
1709 {
1710  Point pt;
1711  const Window *w;
1712 
1713  int16 default_width = max(desc->GetDefaultWidth(), sm_width);
1714  int16 default_height = max(desc->GetDefaultHeight(), sm_height);
1715 
1716  if (desc->parent_cls != 0 /* WC_MAIN_WINDOW */ &&
1717  (w = FindWindowById(desc->parent_cls, window_number)) != NULL &&
1718  w->left < _screen.width - 20 && w->left > -60 && w->top < _screen.height - 20) {
1719 
1720  pt.x = w->left + ((desc->parent_cls == WC_BUILD_TOOLBAR || desc->parent_cls == WC_SCEN_LAND_GEN) ? 0 : 10);
1721  if (pt.x > _screen.width + 10 - default_width) {
1722  pt.x = (_screen.width + 10 - default_width) - 20;
1723  }
1724  pt.y = w->top + ((desc->parent_cls == WC_BUILD_TOOLBAR || desc->parent_cls == WC_SCEN_LAND_GEN) ? w->height : 10);
1725  return pt;
1726  }
1727 
1728  switch (desc->default_pos) {
1729  case WDP_ALIGN_TOOLBAR: // Align to the toolbar
1730  return GetToolbarAlignedWindowPosition(default_width);
1731 
1732  case WDP_AUTO: // Find a good automatic position for the window
1733  return GetAutoPlacePosition(default_width, default_height);
1734 
1735  case WDP_CENTER: // Centre the window horizontally
1736  pt.x = (_screen.width - default_width) / 2;
1737  pt.y = (_screen.height - default_height) / 2;
1738  break;
1739 
1740  case WDP_MANUAL:
1741  pt.x = 0;
1742  pt.y = 0;
1743  break;
1744 
1745  default:
1746  NOT_REACHED();
1747  }
1748 
1749  return pt;
1750 }
1751 
1752 /* virtual */ Point Window::OnInitialPosition(int16 sm_width, int16 sm_height, int window_number)
1753 {
1754  return LocalGetWindowPlacement(this->window_desc, sm_width, sm_height, window_number);
1755 }
1756 
1764 void Window::CreateNestedTree(bool fill_nested)
1765 {
1766  int biggest_index = -1;
1767  this->nested_root = MakeWindowNWidgetTree(this->window_desc->nwid_parts, this->window_desc->nwid_length, &biggest_index, &this->shade_select);
1768  this->nested_array_size = (uint)(biggest_index + 1);
1769 
1770  if (fill_nested) {
1771  this->nested_array = CallocT<NWidgetBase *>(this->nested_array_size);
1772  this->nested_root->FillNestedArray(this->nested_array, this->nested_array_size);
1773  }
1774 }
1775 
1781 {
1782  this->InitializeData(window_number);
1783  this->ApplyDefaults();
1784  Point pt = this->OnInitialPosition(this->nested_root->smallest_x, this->nested_root->smallest_y, window_number);
1785  this->InitializePositionSize(pt.x, pt.y, this->nested_root->smallest_x, this->nested_root->smallest_y);
1787 }
1788 
1794 {
1795  this->CreateNestedTree(false);
1796  this->FinishInitNested(window_number);
1797 }
1798 
1803 Window::Window(WindowDesc *desc) : window_desc(desc), scrolling_scrollbar(-1)
1804 {
1805 }
1806 
1814 Window *FindWindowFromPt(int x, int y)
1815 {
1816  Window *w;
1817  FOR_ALL_WINDOWS_FROM_FRONT(w) {
1818  if (MayBeShown(w) && IsInsideBS(x, w->left, w->width) && IsInsideBS(y, w->top, w->height)) {
1819  return w;
1820  }
1821  }
1822 
1823  return NULL;
1824 }
1825 
1830 {
1831  IConsoleClose();
1832 
1833  _z_back_window = NULL;
1834  _z_front_window = NULL;
1835  _focused_window = NULL;
1836  _mouseover_last_w = NULL;
1837  _last_scroll_window = NULL;
1838  _scrolling_viewport = false;
1839  _mouse_hovering = false;
1840 
1841  NWidgetLeaf::InvalidateDimensionCache(); // Reset cached sizes of several widgets.
1842  NWidgetScrollbar::InvalidateDimensionCache();
1843 
1844  ShowFirstError();
1845 }
1846 
1851 {
1853 
1854  Window *w;
1855  FOR_ALL_WINDOWS_FROM_FRONT(w) delete w;
1856 
1857  for (w = _z_front_window; w != NULL; /* nothing */) {
1858  Window *to_del = w;
1859  w = w->z_back;
1860  free(to_del);
1861  }
1862 
1863  _z_front_window = NULL;
1864  _z_back_window = NULL;
1865 }
1866 
1871 {
1873  InitWindowSystem();
1874  _thd.Reset();
1875 }
1876 
1877 static void DecreaseWindowCounters()
1878 {
1879  Window *w;
1880  FOR_ALL_WINDOWS_FROM_FRONT(w) {
1881  if (_scroller_click_timeout == 0) {
1882  /* Unclick scrollbar buttons if they are pressed. */
1883  for (uint i = 0; i < w->nested_array_size; i++) {
1884  NWidgetBase *nwid = w->nested_array[i];
1885  if (nwid != NULL && (nwid->type == NWID_HSCROLLBAR || nwid->type == NWID_VSCROLLBAR)) {
1886  NWidgetScrollbar *sb = static_cast<NWidgetScrollbar*>(nwid);
1889  w->scrolling_scrollbar = -1;
1890  sb->SetDirty(w);
1891  }
1892  }
1893  }
1894  }
1895 
1896  /* Handle editboxes */
1897  for (SmallMap<int, QueryString*>::Pair *it = w->querystrings.Begin(); it != w->querystrings.End(); ++it) {
1898  it->second->HandleEditBox(w, it->first);
1899  }
1900 
1901  w->OnMouseLoop();
1902  }
1903 
1904  FOR_ALL_WINDOWS_FROM_FRONT(w) {
1905  if ((w->flags & WF_TIMEOUT) && --w->timeout_timer == 0) {
1906  CLRBITS(w->flags, WF_TIMEOUT);
1907 
1908  w->OnTimeout();
1909  w->RaiseButtons(true);
1910  }
1911  }
1912 }
1913 
1914 static void HandlePlacePresize()
1915 {
1916  if (_special_mouse_mode != WSM_PRESIZE) return;
1917 
1918  Window *w = _thd.GetCallbackWnd();
1919  if (w == NULL) return;
1920 
1921  Point pt = GetTileBelowCursor();
1922  if (pt.x == -1) {
1923  _thd.selend.x = -1;
1924  return;
1925  }
1926 
1927  w->OnPlacePresize(pt, TileVirtXY(pt.x, pt.y));
1928 }
1929 
1935 {
1937 
1938  if (_left_button_down && _cursor.delta.x == 0 && _cursor.delta.y == 0) return ES_HANDLED; // Dragging, but the mouse did not move.
1939 
1940  Window *w = _thd.GetCallbackWnd();
1941  if (w != NULL) {
1942  /* Send an event in client coordinates. */
1943  Point pt;
1944  pt.x = _cursor.pos.x - w->left;
1945  pt.y = _cursor.pos.y - w->top;
1946  if (_left_button_down) {
1947  w->OnMouseDrag(pt, GetWidgetFromPos(w, pt.x, pt.y));
1948  } else {
1949  w->OnDragDrop(pt, GetWidgetFromPos(w, pt.x, pt.y));
1950  }
1951  }
1952 
1953  if (!_left_button_down) ResetObjectToPlace(); // Button released, finished dragging.
1954  return ES_HANDLED;
1955 }
1956 
1958 static void HandleMouseOver()
1959 {
1960  Window *w = FindWindowFromPt(_cursor.pos.x, _cursor.pos.y);
1961 
1962  /* We changed window, put a MOUSEOVER event to the last window */
1963  if (_mouseover_last_w != NULL && _mouseover_last_w != w) {
1964  /* Reset mouse-over coordinates of previous window */
1965  Point pt = { -1, -1 };
1966  _mouseover_last_w->OnMouseOver(pt, 0);
1967  }
1968 
1969  /* _mouseover_last_w will get reset when the window is deleted, see DeleteWindow() */
1970  _mouseover_last_w = w;
1971 
1972  if (w != NULL) {
1973  /* send an event in client coordinates. */
1974  Point pt = { _cursor.pos.x - w->left, _cursor.pos.y - w->top };
1975  const NWidgetCore *widget = w->nested_root->GetWidgetFromPos(pt.x, pt.y);
1976  if (widget != NULL) w->OnMouseOver(pt, widget->index);
1977  }
1978 }
1979 
1981 static const int MIN_VISIBLE_TITLE_BAR = 13;
1982 
1987 };
1988 
1999 static void PreventHiding(int *nx, int *ny, const Rect &rect, const Window *v, int px, PreventHideDirection dir)
2000 {
2001  if (v == NULL) return;
2002 
2003  int v_bottom = v->top + v->height;
2004  int v_right = v->left + v->width;
2005  int safe_y = (dir == PHD_UP) ? (v->top - MIN_VISIBLE_TITLE_BAR - rect.top) : (v_bottom + MIN_VISIBLE_TITLE_BAR - rect.bottom); // Compute safe vertical position.
2006 
2007  if (*ny + rect.top <= v->top - MIN_VISIBLE_TITLE_BAR) return; // Above v is enough space
2008  if (*ny + rect.bottom >= v_bottom + MIN_VISIBLE_TITLE_BAR) return; // Below v is enough space
2009 
2010  /* Vertically, the rectangle is hidden behind v. */
2011  if (*nx + rect.left + MIN_VISIBLE_TITLE_BAR < v->left) { // At left of v.
2012  if (v->left < MIN_VISIBLE_TITLE_BAR) *ny = safe_y; // But enough room, force it to a safe position.
2013  return;
2014  }
2015  if (*nx + rect.right - MIN_VISIBLE_TITLE_BAR > v_right) { // At right of v.
2016  if (v_right > _screen.width - MIN_VISIBLE_TITLE_BAR) *ny = safe_y; // Not enough room, force it to a safe position.
2017  return;
2018  }
2019 
2020  /* Horizontally also hidden, force movement to a safe area. */
2021  if (px + rect.left < v->left && v->left >= MIN_VISIBLE_TITLE_BAR) { // Coming from the left, and enough room there.
2022  *nx = v->left - MIN_VISIBLE_TITLE_BAR - rect.left;
2023  } else if (px + rect.right > v_right && v_right <= _screen.width - MIN_VISIBLE_TITLE_BAR) { // Coming from the right, and enough room there.
2024  *nx = v_right + MIN_VISIBLE_TITLE_BAR - rect.right;
2025  } else {
2026  *ny = safe_y;
2027  }
2028 }
2029 
2037 static void EnsureVisibleCaption(Window *w, int nx, int ny)
2038 {
2039  /* Search for the title bar rectangle. */
2040  Rect caption_rect;
2041  const NWidgetBase *caption = w->nested_root->GetWidgetOfType(WWT_CAPTION);
2042  if (caption != NULL) {
2043  caption_rect.left = caption->pos_x;
2044  caption_rect.right = caption->pos_x + caption->current_x;
2045  caption_rect.top = caption->pos_y;
2046  caption_rect.bottom = caption->pos_y + caption->current_y;
2047 
2048  /* Make sure the window doesn't leave the screen */
2049  nx = Clamp(nx, MIN_VISIBLE_TITLE_BAR - caption_rect.right, _screen.width - MIN_VISIBLE_TITLE_BAR - caption_rect.left);
2050  ny = Clamp(ny, 0, _screen.height - MIN_VISIBLE_TITLE_BAR);
2051 
2052  /* Make sure the title bar isn't hidden behind the main tool bar or the status bar. */
2053  PreventHiding(&nx, &ny, caption_rect, FindWindowById(WC_MAIN_TOOLBAR, 0), w->left, PHD_DOWN);
2054  PreventHiding(&nx, &ny, caption_rect, FindWindowById(WC_STATUS_BAR, 0), w->left, PHD_UP);
2055  }
2056 
2057  if (w->viewport != NULL) {
2058  w->viewport->left += nx - w->left;
2059  w->viewport->top += ny - w->top;
2060  }
2061 
2062  w->left = nx;
2063  w->top = ny;
2064 }
2065 
2076 void ResizeWindow(Window *w, int delta_x, int delta_y, bool clamp_to_screen)
2077 {
2078  if (delta_x != 0 || delta_y != 0) {
2079  if (clamp_to_screen) {
2080  /* Determine the new right/bottom position. If that is outside of the bounds of
2081  * the resolution clamp it in such a manner that it stays within the bounds. */
2082  int new_right = w->left + w->width + delta_x;
2083  int new_bottom = w->top + w->height + delta_y;
2084  if (new_right >= (int)_cur_resolution.width) delta_x -= Ceil(new_right - _cur_resolution.width, max(1U, w->nested_root->resize_x));
2085  if (new_bottom >= (int)_cur_resolution.height) delta_y -= Ceil(new_bottom - _cur_resolution.height, max(1U, w->nested_root->resize_y));
2086  }
2087 
2088  w->SetDirty();
2089 
2090  uint new_xinc = max(0, (w->nested_root->resize_x == 0) ? 0 : (int)(w->nested_root->current_x - w->nested_root->smallest_x) + delta_x);
2091  uint new_yinc = max(0, (w->nested_root->resize_y == 0) ? 0 : (int)(w->nested_root->current_y - w->nested_root->smallest_y) + delta_y);
2092  assert(w->nested_root->resize_x == 0 || new_xinc % w->nested_root->resize_x == 0);
2093  assert(w->nested_root->resize_y == 0 || new_yinc % w->nested_root->resize_y == 0);
2094 
2096  w->width = w->nested_root->current_x;
2097  w->height = w->nested_root->current_y;
2098  }
2099 
2100  EnsureVisibleCaption(w, w->left, w->top);
2101 
2102  /* Always call OnResize to make sure everything is initialised correctly if it needs to be. */
2103  w->OnResize();
2104  w->SetDirty();
2105 }
2106 
2113 {
2115  return (w == NULL) ? 0 : w->top + w->height;
2116 }
2117 
2124 {
2126  return (w == NULL) ? _screen.height : w->top;
2127 }
2128 
2129 static bool _dragging_window;
2130 
2136 {
2137  /* Get out immediately if no window is being dragged at all. */
2138  if (!_dragging_window) return ES_NOT_HANDLED;
2139 
2140  /* If button still down, but cursor hasn't moved, there is nothing to do. */
2141  if (_left_button_down && _cursor.delta.x == 0 && _cursor.delta.y == 0) return ES_HANDLED;
2142 
2143  /* Otherwise find the window... */
2144  Window *w;
2145  FOR_ALL_WINDOWS_FROM_BACK(w) {
2146  if (w->flags & WF_DRAGGING) {
2147  /* Stop the dragging if the left mouse button was released */
2148  if (!_left_button_down) {
2149  w->flags &= ~WF_DRAGGING;
2150  break;
2151  }
2152 
2153  w->SetDirty();
2154 
2155  int x = _cursor.pos.x + _drag_delta.x;
2156  int y = _cursor.pos.y + _drag_delta.y;
2157  int nx = x;
2158  int ny = y;
2159 
2161  const Window *v;
2162 
2165  int delta;
2166 
2167  FOR_ALL_WINDOWS_FROM_BACK(v) {
2168  if (v == w) continue; // Don't snap at yourself
2169 
2170  if (y + w->height > v->top && y < v->top + v->height) {
2171  /* Your left border <-> other right border */
2172  delta = abs(v->left + v->width - x);
2173  if (delta <= hsnap) {
2174  nx = v->left + v->width;
2175  hsnap = delta;
2176  }
2177 
2178  /* Your right border <-> other left border */
2179  delta = abs(v->left - x - w->width);
2180  if (delta <= hsnap) {
2181  nx = v->left - w->width;
2182  hsnap = delta;
2183  }
2184  }
2185 
2186  if (w->top + w->height >= v->top && w->top <= v->top + v->height) {
2187  /* Your left border <-> other left border */
2188  delta = abs(v->left - x);
2189  if (delta <= hsnap) {
2190  nx = v->left;
2191  hsnap = delta;
2192  }
2193 
2194  /* Your right border <-> other right border */
2195  delta = abs(v->left + v->width - x - w->width);
2196  if (delta <= hsnap) {
2197  nx = v->left + v->width - w->width;
2198  hsnap = delta;
2199  }
2200  }
2201 
2202  if (x + w->width > v->left && x < v->left + v->width) {
2203  /* Your top border <-> other bottom border */
2204  delta = abs(v->top + v->height - y);
2205  if (delta <= vsnap) {
2206  ny = v->top + v->height;
2207  vsnap = delta;
2208  }
2209 
2210  /* Your bottom border <-> other top border */
2211  delta = abs(v->top - y - w->height);
2212  if (delta <= vsnap) {
2213  ny = v->top - w->height;
2214  vsnap = delta;
2215  }
2216  }
2217 
2218  if (w->left + w->width >= v->left && w->left <= v->left + v->width) {
2219  /* Your top border <-> other top border */
2220  delta = abs(v->top - y);
2221  if (delta <= vsnap) {
2222  ny = v->top;
2223  vsnap = delta;
2224  }
2225 
2226  /* Your bottom border <-> other bottom border */
2227  delta = abs(v->top + v->height - y - w->height);
2228  if (delta <= vsnap) {
2229  ny = v->top + v->height - w->height;
2230  vsnap = delta;
2231  }
2232  }
2233  }
2234  }
2235 
2236  EnsureVisibleCaption(w, nx, ny);
2237 
2238  w->SetDirty();
2239  return ES_HANDLED;
2240  } else if (w->flags & WF_SIZING) {
2241  /* Stop the sizing if the left mouse button was released */
2242  if (!_left_button_down) {
2243  w->flags &= ~WF_SIZING;
2244  w->SetDirty();
2245  break;
2246  }
2247 
2248  /* Compute difference in pixels between cursor position and reference point in the window.
2249  * If resizing the left edge of the window, moving to the left makes the window bigger not smaller.
2250  */
2251  int x, y = _cursor.pos.y - _drag_delta.y;
2252  if (w->flags & WF_SIZING_LEFT) {
2253  x = _drag_delta.x - _cursor.pos.x;
2254  } else {
2255  x = _cursor.pos.x - _drag_delta.x;
2256  }
2257 
2258  /* resize.step_width and/or resize.step_height may be 0, which means no resize is possible. */
2259  if (w->resize.step_width == 0) x = 0;
2260  if (w->resize.step_height == 0) y = 0;
2261 
2262  /* Check the resize button won't go past the bottom of the screen */
2263  if (w->top + w->height + y > _screen.height) {
2264  y = _screen.height - w->height - w->top;
2265  }
2266 
2267  /* X and Y has to go by step.. calculate it.
2268  * The cast to int is necessary else x/y are implicitly casted to
2269  * unsigned int, which won't work. */
2270  if (w->resize.step_width > 1) x -= x % (int)w->resize.step_width;
2271  if (w->resize.step_height > 1) y -= y % (int)w->resize.step_height;
2272 
2273  /* Check that we don't go below the minimum set size */
2274  if ((int)w->width + x < (int)w->nested_root->smallest_x) {
2275  x = w->nested_root->smallest_x - w->width;
2276  }
2277  if ((int)w->height + y < (int)w->nested_root->smallest_y) {
2278  y = w->nested_root->smallest_y - w->height;
2279  }
2280 
2281  /* Window already on size */
2282  if (x == 0 && y == 0) return ES_HANDLED;
2283 
2284  /* Now find the new cursor pos.. this is NOT _cursor, because we move in steps. */
2285  _drag_delta.y += y;
2286  if ((w->flags & WF_SIZING_LEFT) && x != 0) {
2287  _drag_delta.x -= x; // x > 0 -> window gets longer -> left-edge moves to left -> subtract x to get new position.
2288  w->SetDirty();
2289  w->left -= x; // If dragging left edge, move left window edge in opposite direction by the same amount.
2290  /* ResizeWindow() below ensures marking new position as dirty. */
2291  } else {
2292  _drag_delta.x += x;
2293  }
2294 
2295  /* ResizeWindow sets both pre- and after-size to dirty for redrawal */
2296  ResizeWindow(w, x, y);
2297  return ES_HANDLED;
2298  }
2299  }
2300 
2301  _dragging_window = false;
2302  return ES_HANDLED;
2303 }
2304 
2309 static void StartWindowDrag(Window *w)
2310 {
2311  w->flags |= WF_DRAGGING;
2312  w->flags &= ~WF_CENTERED;
2313  _dragging_window = true;
2314 
2315  _drag_delta.x = w->left - _cursor.pos.x;
2316  _drag_delta.y = w->top - _cursor.pos.y;
2317 
2318  BringWindowToFront(w);
2320 }
2321 
2327 static void StartWindowSizing(Window *w, bool to_left)
2328 {
2329  w->flags |= to_left ? WF_SIZING_LEFT : WF_SIZING_RIGHT;
2330  w->flags &= ~WF_CENTERED;
2331  _dragging_window = true;
2332 
2333  _drag_delta.x = _cursor.pos.x;
2334  _drag_delta.y = _cursor.pos.y;
2335 
2336  BringWindowToFront(w);
2338 }
2339 
2345 {
2346  Window *w;
2347  FOR_ALL_WINDOWS_FROM_BACK(w) {
2348  if (w->scrolling_scrollbar >= 0) {
2349  /* Abort if no button is clicked any more. */
2350  if (!_left_button_down) {
2351  w->scrolling_scrollbar = -1;
2352  w->SetDirty();
2353  return ES_HANDLED;
2354  }
2355 
2356  int i;
2358  bool rtl = false;
2359 
2360  if (sb->type == NWID_HSCROLLBAR) {
2361  i = _cursor.pos.x - _cursorpos_drag_start.x;
2362  rtl = _current_text_dir == TD_RTL;
2363  } else {
2364  i = _cursor.pos.y - _cursorpos_drag_start.y;
2365  }
2366 
2367  if (sb->disp_flags & ND_SCROLLBAR_BTN) {
2368  if (_scroller_click_timeout == 1) {
2369  _scroller_click_timeout = 3;
2370  sb->UpdatePosition(rtl == HasBit(sb->disp_flags, NDB_SCROLLBAR_UP) ? 1 : -1);
2371  w->SetDirty();
2372  }
2373  return ES_HANDLED;
2374  }
2375 
2376  /* Find the item we want to move to and make sure it's inside bounds. */
2377  int pos = min(max(0, i + _scrollbar_start_pos) * sb->GetCount() / _scrollbar_size, max(0, sb->GetCount() - sb->GetCapacity()));
2378  if (rtl) pos = max(0, sb->GetCount() - sb->GetCapacity() - pos);
2379  if (pos != sb->GetPosition()) {
2380  sb->SetPosition(pos);
2381  w->SetDirty();
2382  }
2383  return ES_HANDLED;
2384  }
2385  }
2386 
2387  return ES_NOT_HANDLED;
2388 }
2389 
2395 {
2396  bool scrollwheel_scrolling = _settings_client.gui.scrollwheel_scrolling == 1 && (_cursor.v_wheel != 0 || _cursor.h_wheel != 0);
2397 
2398  if (!_scrolling_viewport) return ES_NOT_HANDLED;
2399 
2400  /* When we don't have a last scroll window we are starting to scroll.
2401  * When the last scroll window and this are not the same we went
2402  * outside of the window and should not left-mouse scroll anymore. */
2403  if (_last_scroll_window == NULL) _last_scroll_window = FindWindowFromPt(_cursor.pos.x, _cursor.pos.y);
2404 
2405  if (_last_scroll_window == NULL || !(_right_button_down || scrollwheel_scrolling || (_settings_client.gui.left_mouse_btn_scrolling && _left_button_down))) {
2406  _cursor.fix_at = false;
2407  _scrolling_viewport = false;
2408  _last_scroll_window = NULL;
2409  return ES_NOT_HANDLED;
2410  }
2411 
2412  if (_last_scroll_window == FindWindowById(WC_MAIN_WINDOW, 0) && _last_scroll_window->viewport->follow_vehicle != INVALID_VEHICLE) {
2413  /* If the main window is following a vehicle, then first let go of it! */
2414  const Vehicle *veh = Vehicle::Get(_last_scroll_window->viewport->follow_vehicle);
2415  ScrollMainWindowTo(veh->x_pos, veh->y_pos, veh->z_pos, true); // This also resets follow_vehicle
2416  return ES_NOT_HANDLED;
2417  }
2418 
2419  Point delta;
2421  delta.x = -_cursor.delta.x;
2422  delta.y = -_cursor.delta.y;
2423  } else {
2424  delta.x = _cursor.delta.x;
2425  delta.y = _cursor.delta.y;
2426  }
2427 
2428  if (scrollwheel_scrolling) {
2429  /* We are using scrollwheels for scrolling */
2430  delta.x = _cursor.h_wheel;
2431  delta.y = _cursor.v_wheel;
2432  _cursor.v_wheel = 0;
2433  _cursor.h_wheel = 0;
2434  }
2435 
2436  /* Create a scroll-event and send it to the window */
2437  if (delta.x != 0 || delta.y != 0) _last_scroll_window->OnScroll(delta);
2438 
2439  _cursor.delta.x = 0;
2440  _cursor.delta.y = 0;
2441  return ES_HANDLED;
2442 }
2443 
2455 {
2456  bool bring_to_front = false;
2457 
2458  if (w->window_class == WC_MAIN_WINDOW ||
2459  IsVitalWindow(w) ||
2460  w->window_class == WC_TOOLTIPS ||
2462  return true;
2463  }
2464 
2465  /* Use unshaded window size rather than current size for shaded windows. */
2466  int w_width = w->width;
2467  int w_height = w->height;
2468  if (w->IsShaded()) {
2469  w_width = w->unshaded_size.width;
2470  w_height = w->unshaded_size.height;
2471  }
2472 
2473  Window *u;
2475  /* A modal child will prevent the activation of the parent window */
2476  if (u->parent == w && (u->window_desc->flags & WDF_MODAL)) {
2477  u->SetWhiteBorder();
2478  u->SetDirty();
2479  return false;
2480  }
2481 
2482  if (u->window_class == WC_MAIN_WINDOW ||
2483  IsVitalWindow(u) ||
2484  u->window_class == WC_TOOLTIPS ||
2486  continue;
2487  }
2488 
2489  /* Window sizes don't interfere, leave z-order alone */
2490  if (w->left + w_width <= u->left ||
2491  u->left + u->width <= w->left ||
2492  w->top + w_height <= u->top ||
2493  u->top + u->height <= w->top) {
2494  continue;
2495  }
2496 
2497  bring_to_front = true;
2498  }
2499 
2500  if (bring_to_front) BringWindowToFront(w);
2501  return true;
2502 }
2503 
2512 EventState Window::HandleEditBoxKey(int wid, WChar key, uint16 keycode)
2513 {
2514  QueryString *query = this->GetQueryString(wid);
2515  if (query == NULL) return ES_NOT_HANDLED;
2516 
2517  int action = QueryString::ACTION_NOTHING;
2518 
2519  switch (query->text.HandleKeyPress(key, keycode)) {
2520  case HKPR_EDITING:
2521  this->SetWidgetDirty(wid);
2522  this->OnEditboxChanged(wid);
2523  break;
2524 
2525  case HKPR_CURSOR:
2526  this->SetWidgetDirty(wid);
2527  /* For the OSK also invalidate the parent window */
2528  if (this->window_class == WC_OSK) this->InvalidateData();
2529  break;
2530 
2531  case HKPR_CONFIRM:
2532  if (this->window_class == WC_OSK) {
2533  this->OnClick(Point(), WID_OSK_OK, 1);
2534  } else if (query->ok_button >= 0) {
2535  this->OnClick(Point(), query->ok_button, 1);
2536  } else {
2537  action = query->ok_button;
2538  }
2539  break;
2540 
2541  case HKPR_CANCEL:
2542  if (this->window_class == WC_OSK) {
2543  this->OnClick(Point(), WID_OSK_CANCEL, 1);
2544  } else if (query->cancel_button >= 0) {
2545  this->OnClick(Point(), query->cancel_button, 1);
2546  } else {
2547  action = query->cancel_button;
2548  }
2549  break;
2550 
2551  case HKPR_NOT_HANDLED:
2552  return ES_NOT_HANDLED;
2553 
2554  default: break;
2555  }
2556 
2557  switch (action) {
2559  this->UnfocusFocusedWidget();
2560  break;
2561 
2563  if (query->text.bytes <= 1) {
2564  /* If already empty, unfocus instead */
2565  this->UnfocusFocusedWidget();
2566  } else {
2567  query->text.DeleteAll();
2568  this->SetWidgetDirty(wid);
2569  this->OnEditboxChanged(wid);
2570  }
2571  break;
2572 
2573  default:
2574  break;
2575  }
2576 
2577  return ES_HANDLED;
2578 }
2579 
2585 void HandleKeypress(uint keycode, WChar key)
2586 {
2587  /* World generation is multithreaded and messes with companies.
2588  * But there is no company related window open anyway, so _current_company is not used. */
2589  assert(HasModalProgress() || IsLocalCompany());
2590 
2591  /*
2592  * The Unicode standard defines an area called the private use area. Code points in this
2593  * area are reserved for private use and thus not portable between systems. For instance,
2594  * Apple defines code points for the arrow keys in this area, but these are only printable
2595  * on a system running OS X. We don't want these keys to show up in text fields and such,
2596  * and thus we have to clear the unicode character when we encounter such a key.
2597  */
2598  if (key >= 0xE000 && key <= 0xF8FF) key = 0;
2599 
2600  /*
2601  * If both key and keycode is zero, we don't bother to process the event.
2602  */
2603  if (key == 0 && keycode == 0) return;
2604 
2605  /* Check if the focused window has a focused editbox */
2606  if (EditBoxInGlobalFocus()) {
2607  /* All input will in this case go to the focused editbox */
2608  if (_focused_window->window_class == WC_CONSOLE) {
2609  if (_focused_window->OnKeyPress(key, keycode) == ES_HANDLED) return;
2610  } else {
2611  if (_focused_window->HandleEditBoxKey(_focused_window->nested_focus->index, key, keycode) == ES_HANDLED) return;
2612  }
2613  }
2614 
2615  /* Call the event, start with the uppermost window, but ignore the toolbar. */
2616  Window *w;
2617  FOR_ALL_WINDOWS_FROM_FRONT(w) {
2618  if (w->window_class == WC_MAIN_TOOLBAR) continue;
2619  if (w->window_desc->hotkeys != NULL) {
2620  int hotkey = w->window_desc->hotkeys->CheckMatch(keycode);
2621  if (hotkey >= 0 && w->OnHotkey(hotkey) == ES_HANDLED) return;
2622  }
2623  if (w->OnKeyPress(key, keycode) == ES_HANDLED) return;
2624  }
2625 
2627  /* When there is no toolbar w is null, check for that */
2628  if (w != NULL) {
2629  if (w->window_desc->hotkeys != NULL) {
2630  int hotkey = w->window_desc->hotkeys->CheckMatch(keycode);
2631  if (hotkey >= 0 && w->OnHotkey(hotkey) == ES_HANDLED) return;
2632  }
2633  if (w->OnKeyPress(key, keycode) == ES_HANDLED) return;
2634  }
2635 
2636  HandleGlobalHotkeys(key, keycode);
2637 }
2638 
2643 {
2644  /* Call the event, start with the uppermost window. */
2645  Window *w;
2646  FOR_ALL_WINDOWS_FROM_FRONT(w) {
2647  if (w->OnCTRLStateChange() == ES_HANDLED) return;
2648  }
2649 }
2650 
2656 /* virtual */ void Window::InsertTextString(int wid, const char *str, bool marked, const char *caret, const char *insert_location, const char *replacement_end)
2657 {
2658  QueryString *query = this->GetQueryString(wid);
2659  if (query == NULL) return;
2660 
2661  if (query->text.InsertString(str, marked, caret, insert_location, replacement_end) || marked) {
2662  this->SetWidgetDirty(wid);
2663  this->OnEditboxChanged(wid);
2664  }
2665 }
2666 
2673 void HandleTextInput(const char *str, bool marked, const char *caret, const char *insert_location, const char *replacement_end)
2674 {
2675  if (!EditBoxInGlobalFocus()) return;
2676 
2677  _focused_window->InsertTextString(_focused_window->window_class == WC_CONSOLE ? 0 : _focused_window->nested_focus->index, str, marked, caret, insert_location, replacement_end);
2678 }
2679 
2687 
2692 static void HandleAutoscroll()
2693 {
2694  if (_game_mode == GM_MENU || HasModalProgress()) return;
2696  if (_settings_client.gui.auto_scrolling == VA_MAIN_VIEWPORT_FULLSCREEN && !_fullscreen) return;
2697 
2698  int x = _cursor.pos.x;
2699  int y = _cursor.pos.y;
2700  Window *w = FindWindowFromPt(x, y);
2701  if (w == NULL || w->flags & WF_DISABLE_VP_SCROLL) return;
2703 
2704  ViewPort *vp = IsPtInWindowViewport(w, x, y);
2705  if (vp == NULL) return;
2706 
2707  x -= vp->left;
2708  y -= vp->top;
2709 
2710  /* here allows scrolling in both x and y axis */
2711 #define scrollspeed 3
2712  if (x - 15 < 0) {
2713  w->viewport->dest_scrollpos_x += ScaleByZoom((x - 15) * scrollspeed, vp->zoom);
2714  } else if (15 - (vp->width - x) > 0) {
2715  w->viewport->dest_scrollpos_x += ScaleByZoom((15 - (vp->width - x)) * scrollspeed, vp->zoom);
2716  }
2717  if (y - 15 < 0) {
2718  w->viewport->dest_scrollpos_y += ScaleByZoom((y - 15) * scrollspeed, vp->zoom);
2719  } else if (15 - (vp->height - y) > 0) {
2720  w->viewport->dest_scrollpos_y += ScaleByZoom((15 - (vp->height - y)) * scrollspeed, vp->zoom);
2721  }
2722 #undef scrollspeed
2723 }
2724 
2726  MC_NONE = 0,
2727  MC_LEFT,
2728  MC_RIGHT,
2729  MC_DOUBLE_LEFT,
2730  MC_HOVER,
2731 
2735 };
2737 
2738 static void ScrollMainViewport(int x, int y)
2739 {
2740  if (_game_mode != GM_MENU) {
2742  assert(w);
2743 
2746  }
2747 }
2748 
2758 static const int8 scrollamt[16][2] = {
2759  { 0, 0},
2760  {-2, 0},
2761  { 0, -2},
2762  {-2, -1},
2763  { 2, 0},
2764  { 0, 0},
2765  { 2, -1},
2766  { 0, -2},
2767  { 0, 2},
2768  {-2, 1},
2769  { 0, 0},
2770  {-2, 0},
2771  { 2, 1},
2772  { 0, 2},
2773  { 2, 0},
2774  { 0, 0},
2775 };
2776 
2777 static void HandleKeyScrolling()
2778 {
2779  /*
2780  * Check that any of the dirkeys is pressed and that the focused window
2781  * doesn't have an edit-box as focused widget.
2782  */
2783  if (_dirkeys && !EditBoxInGlobalFocus()) {
2784  int factor = _shift_pressed ? 50 : 10;
2785  ScrollMainViewport(scrollamt[_dirkeys][0] * factor, scrollamt[_dirkeys][1] * factor);
2786  }
2787 }
2788 
2789 static void MouseLoop(MouseClick click, int mousewheel)
2790 {
2791  /* World generation is multithreaded and messes with companies.
2792  * But there is no company related window open anyway, so _current_company is not used. */
2793  assert(HasModalProgress() || IsLocalCompany());
2794 
2795  HandlePlacePresize();
2797 
2798  if (VpHandlePlaceSizingDrag() == ES_HANDLED) return;
2799  if (HandleMouseDragDrop() == ES_HANDLED) return;
2800  if (HandleWindowDragging() == ES_HANDLED) return;
2801  if (HandleScrollbarScrolling() == ES_HANDLED) return;
2802  if (HandleViewportScroll() == ES_HANDLED) return;
2803 
2804  HandleMouseOver();
2805 
2806  bool scrollwheel_scrolling = _settings_client.gui.scrollwheel_scrolling == 1 && (_cursor.v_wheel != 0 || _cursor.h_wheel != 0);
2807  if (click == MC_NONE && mousewheel == 0 && !scrollwheel_scrolling) return;
2808 
2809  int x = _cursor.pos.x;
2810  int y = _cursor.pos.y;
2811  Window *w = FindWindowFromPt(x, y);
2812  if (w == NULL) return;
2813 
2814  if (click != MC_HOVER && !MaybeBringWindowToFront(w)) return;
2815  ViewPort *vp = IsPtInWindowViewport(w, x, y);
2816 
2817  /* Don't allow any action in a viewport if either in menu or when having a modal progress window */
2818  if (vp != NULL && (_game_mode == GM_MENU || HasModalProgress())) return;
2819 
2820  if (mousewheel != 0) {
2821  /* Send mousewheel event to window */
2822  w->OnMouseWheel(mousewheel);
2823 
2824  /* Dispatch a MouseWheelEvent for widgets if it is not a viewport */
2825  if (vp == NULL) DispatchMouseWheelEvent(w, w->nested_root->GetWidgetFromPos(x - w->left, y - w->top), mousewheel);
2826  }
2827 
2828  if (vp != NULL) {
2829  if (scrollwheel_scrolling) click = MC_RIGHT; // we are using the scrollwheel in a viewport, so we emulate right mouse button
2830  switch (click) {
2831  case MC_DOUBLE_LEFT:
2832  case MC_LEFT:
2833  if (HandleViewportClicked(vp, x, y)) return;
2834  if (!(w->flags & WF_DISABLE_VP_SCROLL) &&
2836  _scrolling_viewport = true;
2837  _cursor.fix_at = false;
2838  return;
2839  }
2840  break;
2841 
2842  case MC_RIGHT:
2843  if (!(w->flags & WF_DISABLE_VP_SCROLL)) {
2844  _scrolling_viewport = true;
2845  _cursor.fix_at = true;
2846 
2847  /* clear 2D scrolling caches before we start a 2D scroll */
2848  _cursor.h_wheel = 0;
2849  _cursor.v_wheel = 0;
2850  return;
2851  }
2852  break;
2853 
2854  default:
2855  break;
2856  }
2857  }
2858 
2859  if (vp == NULL || (w->flags & WF_DISABLE_VP_SCROLL)) {
2860  switch (click) {
2861  case MC_LEFT:
2862  case MC_DOUBLE_LEFT:
2863  DispatchLeftClickEvent(w, x - w->left, y - w->top, click == MC_DOUBLE_LEFT ? 2 : 1);
2864  break;
2865 
2866  default:
2867  if (!scrollwheel_scrolling || w == NULL || w->window_class != WC_SMALLMAP) break;
2868  /* We try to use the scrollwheel to scroll since we didn't touch any of the buttons.
2869  * Simulate a right button click so we can get started. */
2870  /* FALL THROUGH */
2871 
2872  case MC_RIGHT: DispatchRightClickEvent(w, x - w->left, y - w->top); break;
2873 
2874  case MC_HOVER: DispatchHoverEvent(w, x - w->left, y - w->top); break;
2875  }
2876  }
2877 }
2878 
2883 {
2884  /* World generation is multithreaded and messes with companies.
2885  * But there is no company related window open anyway, so _current_company is not used. */
2886  assert(HasModalProgress() || IsLocalCompany());
2887 
2888  static int double_click_time = 0;
2889  static Point double_click_pos = {0, 0};
2890 
2891  /* Mouse event? */
2892  MouseClick click = MC_NONE;
2894  click = MC_LEFT;
2895  if (double_click_time != 0 && _realtime_tick - double_click_time < TIME_BETWEEN_DOUBLE_CLICK &&
2896  double_click_pos.x != 0 && abs(_cursor.pos.x - double_click_pos.x) < MAX_OFFSET_DOUBLE_CLICK &&
2897  double_click_pos.y != 0 && abs(_cursor.pos.y - double_click_pos.y) < MAX_OFFSET_DOUBLE_CLICK) {
2898  click = MC_DOUBLE_LEFT;
2899  }
2900  double_click_time = _realtime_tick;
2901  double_click_pos = _cursor.pos;
2902  _left_button_clicked = true;
2903  _input_events_this_tick++;
2904  } else if (_right_button_clicked) {
2905  _right_button_clicked = false;
2906  click = MC_RIGHT;
2907  _input_events_this_tick++;
2908  }
2909 
2910  int mousewheel = 0;
2911  if (_cursor.wheel) {
2912  mousewheel = _cursor.wheel;
2913  _cursor.wheel = 0;
2914  _input_events_this_tick++;
2915  }
2916 
2917  static uint32 hover_time = 0;
2918  static Point hover_pos = {0, 0};
2919 
2921  if (!_cursor.in_window || click != MC_NONE || mousewheel != 0 || _left_button_down || _right_button_down ||
2922  hover_pos.x == 0 || abs(_cursor.pos.x - hover_pos.x) >= MAX_OFFSET_HOVER ||
2923  hover_pos.y == 0 || abs(_cursor.pos.y - hover_pos.y) >= MAX_OFFSET_HOVER) {
2924  hover_pos = _cursor.pos;
2925  hover_time = _realtime_tick;
2926  _mouse_hovering = false;
2927  } else {
2928  if (hover_time != 0 && _realtime_tick > hover_time + _settings_client.gui.hover_delay_ms) {
2929  click = MC_HOVER;
2930  _input_events_this_tick++;
2931  _mouse_hovering = true;
2932  }
2933  }
2934  }
2935 
2936  /* Handle sprite picker before any GUI interaction */
2938  /* Next realtime tick? Then redraw has finished */
2939  _newgrf_debug_sprite_picker.mode = SPM_NONE;
2941  }
2942 
2943  if (click == MC_LEFT && _newgrf_debug_sprite_picker.mode == SPM_WAIT_CLICK) {
2944  /* Mark whole screen dirty, and wait for the next realtime tick, when drawing is finished. */
2946  _newgrf_debug_sprite_picker.clicked_pixel = blitter->MoveTo(_screen.dst_ptr, _cursor.pos.x, _cursor.pos.y);
2949  _newgrf_debug_sprite_picker.mode = SPM_REDRAW;
2951  } else {
2952  MouseLoop(click, mousewheel);
2953  }
2954 
2955  /* We have moved the mouse the required distance,
2956  * no need to move it at any later time. */
2957  _cursor.delta.x = 0;
2958  _cursor.delta.y = 0;
2959 }
2960 
2964 static void CheckSoftLimit()
2965 {
2966  if (_settings_client.gui.window_soft_limit == 0) return;
2967 
2968  for (;;) {
2969  uint deletable_count = 0;
2970  Window *w, *last_deletable = NULL;
2971  FOR_ALL_WINDOWS_FROM_FRONT(w) {
2972  if (w->window_class == WC_MAIN_WINDOW || IsVitalWindow(w) || (w->flags & WF_STICKY)) continue;
2973 
2974  last_deletable = w;
2975  deletable_count++;
2976  }
2977 
2978  /* We've not reached the soft limit yet. */
2979  if (deletable_count <= _settings_client.gui.window_soft_limit) break;
2980 
2981  assert(last_deletable != NULL);
2982  delete last_deletable;
2983  }
2984 }
2985 
2990 {
2991  /* World generation is multithreaded and messes with companies.
2992  * But there is no company related window open anyway, so _current_company is not used. */
2993  assert(HasModalProgress() || IsLocalCompany());
2994 
2995  CheckSoftLimit();
2996  HandleKeyScrolling();
2997 
2998  /* Do the actual free of the deleted windows. */
2999  for (Window *v = _z_front_window; v != NULL; /* nothing */) {
3000  Window *w = v;
3001  v = v->z_back;
3002 
3003  if (w->window_class != WC_INVALID) continue;
3004 
3006  free(w);
3007  }
3008 
3009  if (_scroller_click_timeout != 0) _scroller_click_timeout--;
3010  DecreaseWindowCounters();
3011 
3012  if (_input_events_this_tick != 0) {
3013  /* The input loop is called only once per GameLoop() - so we can clear the counter here */
3014  _input_events_this_tick = 0;
3015  /* there were some inputs this tick, don't scroll ??? */
3016  return;
3017  }
3018 
3019  /* HandleMouseEvents was already called for this tick */
3021  HandleAutoscroll();
3022 }
3023 
3028 {
3029  Window *w;
3030 
3031  static int highlight_timer = 1;
3032  if (--highlight_timer == 0) {
3033  highlight_timer = 15;
3035  }
3036 
3037  FOR_ALL_WINDOWS_FROM_FRONT(w) {
3040  }
3041 
3042  /* Skip the actual drawing on dedicated servers without screen.
3043  * But still empty the invalidation queues above. */
3044  if (_network_dedicated) return;
3045 
3046  static int we4_timer = 0;
3047  int t = we4_timer + 1;
3048 
3049  if (t >= 100) {
3050  FOR_ALL_WINDOWS_FROM_FRONT(w) {
3051  w->OnHundredthTick();
3052  }
3053  t = 0;
3054  }
3055  we4_timer = t;
3056 
3057  FOR_ALL_WINDOWS_FROM_FRONT(w) {
3058  if ((w->flags & WF_WHITE_BORDER) && --w->white_border_timer == 0) {
3060  w->SetDirty();
3061  }
3062  }
3063 
3064  DrawDirtyBlocks();
3065 
3066  FOR_ALL_WINDOWS_FROM_BACK(w) {
3067  /* Update viewport only if window is not shaded. */
3068  if (w->viewport != NULL && !w->IsShaded()) UpdateViewportPosition(w);
3069  }
3071  /* Redraw mouse cursor in case it was hidden */
3072  DrawMouseCursor();
3073 }
3074 
3081 {
3082  const Window *w;
3083  FOR_ALL_WINDOWS_FROM_BACK(w) {
3084  if (w->window_class == cls && w->window_number == number) w->SetDirty();
3085  }
3086 }
3087 
3094 void SetWindowWidgetDirty(WindowClass cls, WindowNumber number, byte widget_index)
3095 {
3096  const Window *w;
3097  FOR_ALL_WINDOWS_FROM_BACK(w) {
3098  if (w->window_class == cls && w->window_number == number) {
3099  w->SetWidgetDirty(widget_index);
3100  }
3101  }
3102 }
3103 
3109 {
3110  Window *w;
3111  FOR_ALL_WINDOWS_FROM_BACK(w) {
3112  if (w->window_class == cls) w->SetDirty();
3113  }
3114 }
3115 
3121 void Window::InvalidateData(int data, bool gui_scope)
3122 {
3123  this->SetDirty();
3124  if (!gui_scope) {
3125  /* Schedule GUI-scope invalidation for next redraw. */
3126  *this->scheduled_invalidation_data.Append() = data;
3127  }
3128  this->OnInvalidateData(data, gui_scope);
3129 }
3130 
3135 {
3136  for (int *data = this->scheduled_invalidation_data.Begin(); this->window_class != WC_INVALID && data != this->scheduled_invalidation_data.End(); data++) {
3137  this->OnInvalidateData(*data, true);
3138  }
3140 }
3141 
3146 {
3147  if ((this->flags & WF_HIGHLIGHTED) == 0) return;
3148 
3149  for (uint i = 0; i < this->nested_array_size; i++) {
3150  if (this->IsWidgetHighlighted(i)) this->SetWidgetDirty(i);
3151  }
3152 }
3153 
3180 void InvalidateWindowData(WindowClass cls, WindowNumber number, int data, bool gui_scope)
3181 {
3182  Window *w;
3183  FOR_ALL_WINDOWS_FROM_BACK(w) {
3184  if (w->window_class == cls && w->window_number == number) {
3185  w->InvalidateData(data, gui_scope);
3186  }
3187  }
3188 }
3189 
3198 void InvalidateWindowClassesData(WindowClass cls, int data, bool gui_scope)
3199 {
3200  Window *w;
3201 
3202  FOR_ALL_WINDOWS_FROM_BACK(w) {
3203  if (w->window_class == cls) {
3204  w->InvalidateData(data, gui_scope);
3205  }
3206  }
3207 }
3208 
3213 {
3214  Window *w;
3215  FOR_ALL_WINDOWS_FROM_FRONT(w) {
3216  w->OnTick();
3217  }
3218 }
3219 
3227 {
3228  Window *w;
3229 
3230 restart_search:
3231  /* When we find the window to delete, we need to restart the search
3232  * as deleting this window could cascade in deleting (many) others
3233  * anywhere in the z-array */
3234  FOR_ALL_WINDOWS_FROM_BACK(w) {
3235  if (w->window_class != WC_MAIN_WINDOW &&
3236  w->window_class != WC_SELECT_GAME &&
3237  w->window_class != WC_MAIN_TOOLBAR &&
3238  w->window_class != WC_STATUS_BAR &&
3239  w->window_class != WC_TOOLTIPS &&
3240  (w->flags & WF_STICKY) == 0) { // do not delete windows which are 'pinned'
3241 
3242  delete w;
3243  goto restart_search;
3244  }
3245  }
3246 }
3247 
3256 {
3257  Window *w;
3258 
3259  /* Delete every window except for stickied ones, then sticky ones as well */
3261 
3262 restart_search:
3263  /* When we find the window to delete, we need to restart the search
3264  * as deleting this window could cascade in deleting (many) others
3265  * anywhere in the z-array */
3266  FOR_ALL_WINDOWS_FROM_BACK(w) {
3267  if (w->flags & WF_STICKY) {
3268  delete w;
3269  goto restart_search;
3270  }
3271  }
3272 }
3273 
3279 {
3280  Window *w;
3281 
3282 restart_search:
3283  /* When we find the window to delete, we need to restart the search
3284  * as deleting this window could cascade in deleting (many) others
3285  * anywhere in the z-array */
3286  FOR_ALL_WINDOWS_FROM_BACK(w) {
3287  if (w->window_desc->flags & WDF_CONSTRUCTION) {
3288  delete w;
3289  goto restart_search;
3290  }
3291  }
3292 
3293  FOR_ALL_WINDOWS_FROM_BACK(w) w->SetDirty();
3294 }
3295 
3298 {
3301 }
3302 
3305 {
3306  NWidgetLeaf::InvalidateDimensionCache(); // Reset cached sizes of several widgets.
3307  NWidgetScrollbar::InvalidateDimensionCache();
3308 
3309  extern void InitDepotWindowBlockSizes();
3311 
3312  Window *w;
3313  FOR_ALL_WINDOWS_FROM_BACK(w) {
3314  w->ReInit();
3315  }
3316 #ifdef ENABLE_NETWORK
3317  void NetworkReInitChatBoxSize();
3319 #endif
3320 
3321  /* Make sure essential parts of all windows are visible */
3324 }
3325 
3333 static int PositionWindow(Window *w, WindowClass clss, int setting)
3334 {
3335  if (w == NULL || w->window_class != clss) {
3336  w = FindWindowById(clss, 0);
3337  }
3338  if (w == NULL) return 0;
3339 
3340  int old_left = w->left;
3341  switch (setting) {
3342  case 1: w->left = (_screen.width - w->width) / 2; break;
3343  case 2: w->left = _screen.width - w->width; break;
3344  default: w->left = 0; break;
3345  }
3346  if (w->viewport != NULL) w->viewport->left += w->left - old_left;
3347  SetDirtyBlocks(0, w->top, _screen.width, w->top + w->height); // invalidate the whole row
3348  return w->left;
3349 }
3350 
3357 {
3358  DEBUG(misc, 5, "Repositioning Main Toolbar...");
3360 }
3361 
3368 {
3369  DEBUG(misc, 5, "Repositioning statusbar...");
3371 }
3372 
3379 {
3380  DEBUG(misc, 5, "Repositioning news message...");
3382 }
3383 
3390 {
3391  DEBUG(misc, 5, "Repositioning network chat window...");
3393 }
3394 
3395 
3401 void ChangeVehicleViewports(VehicleID from_index, VehicleID to_index)
3402 {
3403  Window *w;
3404  FOR_ALL_WINDOWS_FROM_BACK(w) {
3405  if (w->viewport != NULL && w->viewport->follow_vehicle == from_index) {
3406  w->viewport->follow_vehicle = to_index;
3407  w->SetDirty();
3408  }
3409  }
3410 }
3411 
3412 
3418 void RelocateAllWindows(int neww, int newh)
3419 {
3420  Window *w;
3421 
3422  FOR_ALL_WINDOWS_FROM_BACK(w) {
3423  int left, top;
3424  /* XXX - this probably needs something more sane. For example specifying
3425  * in a 'backup'-desc that the window should always be centered. */
3426  switch (w->window_class) {
3427  case WC_MAIN_WINDOW:
3428  case WC_BOOTSTRAP:
3429  ResizeWindow(w, neww, newh);
3430  continue;
3431 
3432  case WC_MAIN_TOOLBAR:
3433  ResizeWindow(w, min(neww, _toolbar_width) - w->width, 0, false);
3434 
3435  top = w->top;
3436  left = PositionMainToolbar(w); // changes toolbar orientation
3437  break;
3438 
3439  case WC_NEWS_WINDOW:
3440  top = newh - w->height;
3441  left = PositionNewsMessage(w);
3442  break;
3443 
3444  case WC_STATUS_BAR:
3445  ResizeWindow(w, min(neww, _toolbar_width) - w->width, 0, false);
3446 
3447  top = newh - w->height;
3448  left = PositionStatusbar(w);
3449  break;
3450 
3451  case WC_SEND_NETWORK_MSG:
3452  ResizeWindow(w, min(neww, _toolbar_width) - w->width, 0, false);
3453 
3454  top = newh - w->height - FindWindowById(WC_STATUS_BAR, 0)->height;
3455  left = PositionNetworkChatWindow(w);
3456  break;
3457 
3458  case WC_CONSOLE:
3459  IConsoleResize(w);
3460  continue;
3461 
3462  default: {
3463  if (w->flags & WF_CENTERED) {
3464  top = (newh - w->height) >> 1;
3465  left = (neww - w->width) >> 1;
3466  break;
3467  }
3468 
3469  left = w->left;
3470  if (left + (w->width >> 1) >= neww) left = neww - w->width;
3471  if (left < 0) left = 0;
3472 
3473  top = w->top;
3474  if (top + (w->height >> 1) >= newh) top = newh - w->height;
3475  break;
3476  }
3477  }
3478 
3479  EnsureVisibleCaption(w, left, top);
3480  }
3481 }
3482 
3489 {
3490  this->window_class = WC_INVALID; // stop the ancestor from freeing the already (to be) child
3492 }