OpenTTD: src/subsidy_gui.cpp Source File

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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
30 struct SubsidyListWindow : Window {
31 Scrollbar *vscroll;
32
33 SubsidyListWindow(WindowDesc *desc, WindowNumber window_number) : Window(desc)
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
88 if (_ctrl_pressed || !ScrollMainWindowToTile(xy)) {
89 if (_ctrl_pressed) ShowExtraViewPortWindow(xy);
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) {
99 ShowExtraViewPortWindow(xy);
100 } else {
101 ScrollMainWindowToTile(xy);
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[] = {
228 NWidget(NWID_HORIZONTAL),
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(),
235 NWidget(NWID_HORIZONTAL),
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(),
237 NWidget(NWID_VERTICAL),
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,
246 WC_SUBSIDIES_LIST, WC_NONE,
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 }