OpenTTD
subsidy_gui.cpp
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1 /* $Id: subsidy_gui.cpp 26482 2014-04-23 20:13:33Z rubidium $ */
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 "industry.h"
14 #include "town.h"
15 #include "window_gui.h"
16 #include "strings_func.h"
17 #include "date_func.h"
18 #include "viewport_func.h"
19 #include "gui.h"
20 #include "subsidy_func.h"
21 #include "subsidy_base.h"
22 #include "core/geometry_func.hpp"
23 
24 #include "widgets/subsidy_widget.h"
25 
26 #include "table/strings.h"
27 
28 #include "safeguards.h"
29 
31  Scrollbar *vscroll;
32 
34  {
35  this->CreateNestedTree();
36  this->vscroll = this->GetScrollbar(WID_SUL_SCROLLBAR);
37  this->FinishInitNested(window_number);
38  this->OnInvalidateData(0);
39  }
40 
41  virtual void OnClick(Point pt, int widget, int click_count)
42  {
43  if (widget != WID_SUL_PANEL) return;
44 
45  int y = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_SUL_PANEL, WD_FRAMERECT_TOP);
46  int num = 0;
47  const Subsidy *s;
48  FOR_ALL_SUBSIDIES(s) {
49  if (!s->IsAwarded()) {
50  y--;
51  if (y == 0) {
52  this->HandleClick(s);
53  return;
54  }
55  num++;
56  }
57  }
58 
59  if (num == 0) {
60  y--; // "None"
61  if (y < 0) return;
62  }
63 
64  y -= 2; // "Services already subsidised:"
65  if (y < 0) return;
66 
67  FOR_ALL_SUBSIDIES(s) {
68  if (s->IsAwarded()) {
69  y--;
70  if (y == 0) {
71  this->HandleClick(s);
72  return;
73  }
74  }
75  }
76  }
77 
78  void HandleClick(const Subsidy *s)
79  {
80  /* determine src coordinate for subsidy and try to scroll to it */
81  TileIndex xy;
82  switch (s->src_type) {
83  case ST_INDUSTRY: xy = Industry::Get(s->src)->location.tile; break;
84  case ST_TOWN: xy = Town::Get(s->src)->xy; break;
85  default: NOT_REACHED();
86  }
87 
90 
91  /* otherwise determine dst coordinate for subsidy and scroll to it */
92  switch (s->dst_type) {
93  case ST_INDUSTRY: xy = Industry::Get(s->dst)->location.tile; break;
94  case ST_TOWN: xy = Town::Get(s->dst)->xy; break;
95  default: NOT_REACHED();
96  }
97 
98  if (_ctrl_pressed) {
100  } else {
102  }
103  }
104  }
105 
110  uint CountLines()
111  {
112  /* Count number of (non) awarded subsidies */
113  uint num_awarded = 0;
114  uint num_not_awarded = 0;
115  const Subsidy *s;
116  FOR_ALL_SUBSIDIES(s) {
117  if (!s->IsAwarded()) {
118  num_not_awarded++;
119  } else {
120  num_awarded++;
121  }
122  }
123 
124  /* Count the 'none' lines */
125  if (num_awarded == 0) num_awarded = 1;
126  if (num_not_awarded == 0) num_not_awarded = 1;
127 
128  /* Offered, accepted and an empty line before the accepted ones. */
129  return 3 + num_awarded + num_not_awarded;
130  }
131 
132  virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
133  {
134  if (widget != WID_SUL_PANEL) return;
135  Dimension d = maxdim(GetStringBoundingBox(STR_SUBSIDIES_OFFERED_TITLE), GetStringBoundingBox(STR_SUBSIDIES_SUBSIDISED_TITLE));
136 
137  resize->height = d.height;
138 
139  d.height *= 5;
140  d.width += padding.width + WD_FRAMERECT_RIGHT + WD_FRAMERECT_LEFT;
141  d.height += padding.height + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
142  *size = maxdim(*size, d);
143  }
144 
145  virtual void DrawWidget(const Rect &r, int widget) const
146  {
147  if (widget != WID_SUL_PANEL) return;
148 
149  YearMonthDay ymd;
150  ConvertDateToYMD(_date, &ymd);
151 
152  int right = r.right - WD_FRAMERECT_RIGHT;
153  int y = r.top + WD_FRAMERECT_TOP;
154  int x = r.left + WD_FRAMERECT_LEFT;
155 
156  int pos = -this->vscroll->GetPosition();
157  const int cap = this->vscroll->GetCapacity();
158 
159  /* Section for drawing the offered subsidies */
160  if (IsInsideMM(pos, 0, cap)) DrawString(x, right, y + pos * FONT_HEIGHT_NORMAL, STR_SUBSIDIES_OFFERED_TITLE);
161  pos++;
162 
163  uint num = 0;
164  const Subsidy *s;
165  FOR_ALL_SUBSIDIES(s) {
166  if (!s->IsAwarded()) {
167  if (IsInsideMM(pos, 0, cap)) {
168  /* Displays the two offered towns */
169  SetupSubsidyDecodeParam(s, true);
170  SetDParam(7, _date - ymd.day + s->remaining * 32);
171  DrawString(x, right, y + pos * FONT_HEIGHT_NORMAL, STR_SUBSIDIES_OFFERED_FROM_TO);
172  }
173  pos++;
174  num++;
175  }
176  }
177 
178  if (num == 0) {
179  if (IsInsideMM(pos, 0, cap)) DrawString(x, right, y + pos * FONT_HEIGHT_NORMAL, STR_SUBSIDIES_NONE);
180  pos++;
181  }
182 
183  /* Section for drawing the already granted subsidies */
184  pos++;
185  if (IsInsideMM(pos, 0, cap)) DrawString(x, right, y + pos * FONT_HEIGHT_NORMAL, STR_SUBSIDIES_SUBSIDISED_TITLE);
186  pos++;
187  num = 0;
188 
189  FOR_ALL_SUBSIDIES(s) {
190  if (s->IsAwarded()) {
191  if (IsInsideMM(pos, 0, cap)) {
192  SetupSubsidyDecodeParam(s, true);
193  SetDParam(7, s->awarded);
194  SetDParam(8, _date - ymd.day + s->remaining * 32);
195 
196  /* Displays the two connected stations */
197  DrawString(x, right, y + pos * FONT_HEIGHT_NORMAL, STR_SUBSIDIES_SUBSIDISED_FROM_TO);
198  }
199  pos++;
200  num++;
201  }
202  }
203 
204  if (num == 0) {
205  if (IsInsideMM(pos, 0, cap)) DrawString(x, right, y + pos * FONT_HEIGHT_NORMAL, STR_SUBSIDIES_NONE);
206  pos++;
207  }
208  }
209 
210  virtual void OnResize()
211  {
212  this->vscroll->SetCapacityFromWidget(this, WID_SUL_PANEL);
213  }
214 
220  virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
221  {
222  if (!gui_scope) return;
223  this->vscroll->SetCount(this->CountLines());
224  }
225 };
226 
227 static const NWidgetPart _nested_subsidies_list_widgets[] = {
229  NWidget(WWT_CLOSEBOX, COLOUR_BROWN),
230  NWidget(WWT_CAPTION, COLOUR_BROWN), SetDataTip(STR_SUBSIDIES_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
231  NWidget(WWT_SHADEBOX, COLOUR_BROWN),
232  NWidget(WWT_DEFSIZEBOX, COLOUR_BROWN),
233  NWidget(WWT_STICKYBOX, COLOUR_BROWN),
234  EndContainer(),
236  NWidget(WWT_PANEL, COLOUR_BROWN, WID_SUL_PANEL), SetDataTip(0x0, STR_SUBSIDIES_TOOLTIP_CLICK_ON_SERVICE_TO_CENTER), SetResize(1, 1), SetScrollbar(WID_SUL_SCROLLBAR), EndContainer(),
238  NWidget(NWID_VSCROLLBAR, COLOUR_BROWN, WID_SUL_SCROLLBAR),
239  NWidget(WWT_RESIZEBOX, COLOUR_BROWN),
240  EndContainer(),
241  EndContainer(),
242 };
243 
244 static WindowDesc _subsidies_list_desc(
245  WDP_AUTO, "list_subsidies", 500, 127,
247  0,
248  _nested_subsidies_list_widgets, lengthof(_nested_subsidies_list_widgets)
249 );
250 
251 
252 void ShowSubsidiesList()
253 {
254  AllocateWindowDescFront<SubsidyListWindow>(&_subsidies_list_desc, 0);
255 }