Files @ r20075:2bda14adc373
Branch filter:

Location: cpp/openttd-patchpack/source/src/object_gui.cpp

rubidium
(svn r25038) -Fix [FS#5479]: minimise gaps feature caused removal to only happen at the signal build interval instead of the implicit interval of 1
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
/* $Id$ */

/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */

/** @file object_gui.cpp The GUI for objects. */

#include "stdafx.h"
#include "command_func.h"
#include "newgrf.h"
#include "newgrf_object.h"
#include "newgrf_text.h"
#include "strings_func.h"
#include "viewport_func.h"
#include "window_gui.h"

#include "widgets/object_widget.h"

#include "table/strings.h"

static ObjectClassID _selected_object_class; ///< the currently visible object class
static int _selected_object_index;           ///< the index of the selected object in the current class or -1
static uint8 _selected_object_view;          ///< the view of the selected object

/** The window used for building objects. */
class BuildObjectWindow : public PickerWindowBase {
	static const int OBJECT_MARGIN = 4; ///< The margin (in pixels) around an object.
	int line_height;                    ///< The height of a single line.
	int object_height;                  ///< The height of the object box.
	int info_height;                    ///< The height of the info box.
	Scrollbar *vscroll;                 ///< The scrollbar.

public:
	BuildObjectWindow(const WindowDesc *desc, Window *w) : PickerWindowBase(w), info_height(1)
	{
		this->CreateNestedTree(desc);

		this->vscroll = this->GetScrollbar(WID_BO_SCROLLBAR);
		this->vscroll->SetCapacity(5);
		this->vscroll->SetPosition(0);
		this->vscroll->SetCount(ObjectClass::GetUIClassCount());

		this->FinishInitNested(desc, 0);

		this->SelectFirstAvailableObject(true);
		assert(ObjectClass::Get(_selected_object_class)->GetUISpecCount() > 0); // object GUI should be disables elsewise
		this->GetWidget<NWidgetMatrix>(WID_BO_OBJECT_MATRIX)->SetCount(4);

		NWidgetMatrix *matrix = this->GetWidget<NWidgetMatrix>(WID_BO_SELECT_MATRIX);
		matrix->SetScrollbar(this->GetScrollbar(WID_BO_SELECT_SCROLL));
		matrix->SetCount(ObjectClass::Get(_selected_object_class)->GetUISpecCount());
	}

	virtual ~BuildObjectWindow()
	{
	}

	virtual void SetStringParameters(int widget) const
	{
		switch (widget) {
			case WID_BO_OBJECT_NAME: {
				const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
				SetDParam(0, spec != NULL ? spec->name : STR_EMPTY);
				break;
			}

			case WID_BO_OBJECT_SIZE: {
				const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
				int size = spec == NULL ? 0 : spec->size;
				SetDParam(0, GB(size, HasBit(_selected_object_view, 0) ? 4 : 0, 4));
				SetDParam(1, GB(size, HasBit(_selected_object_view, 0) ? 0 : 4, 4));
				break;
			}

			default: break;
		}
	}

	virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
	{
		switch (widget) {
			case WID_BO_CLASS_LIST: {
				for (uint i = 0; i < ObjectClass::GetClassCount(); i++) {
					ObjectClass *objclass = ObjectClass::Get((ObjectClassID)i);
					if (objclass->GetUISpecCount() == 0) continue;
					size->width = max(size->width, GetStringBoundingBox(objclass->name).width);
				}
				size->width += padding.width;
				this->line_height = FONT_HEIGHT_NORMAL + WD_MATRIX_TOP + WD_MATRIX_BOTTOM;
				resize->height = this->line_height;
				size->height = this->vscroll->GetCapacity() * this->line_height;
				break;
			}

			case WID_BO_OBJECT_NAME:
			case WID_BO_OBJECT_SIZE:
				/* We do not want the window to resize when selecting objects; better clip texts */
				size->width = 0;
				break;

			case WID_BO_OBJECT_MATRIX: {
				/* Get the right amount of buttons based on the current spec. */
				const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
				if (spec != NULL) {
					if (spec->views >= 2) size->width  += resize->width;
					if (spec->views >= 4) size->height += resize->height;
				}
				resize->width = 0;
				resize->height = 0;
				break;
			}

			case WID_BO_OBJECT_SPRITE: {
				bool two_wide = false;  // Whether there will be two widgets next to each other in the matrix or not.
				int height[2] = {0, 0}; // The height for the different views; in this case views 1/2 and 4.

				/* Get the height and view information. */
				for (int i = 0; i < NUM_OBJECTS; i++) {
					const ObjectSpec *spec = ObjectSpec::Get(i);
					if (!spec->IsEverAvailable()) continue;
					two_wide |= spec->views >= 2;
					height[spec->views / 4] = max<int>(ObjectSpec::Get(i)->height, height[spec->views / 4]);
				}

				/* Determine the pixel heights. */
				for (size_t i = 0; i < lengthof(height); i++) {
					height[i] *= TILE_HEIGHT;
					height[i] += TILE_PIXELS + 2 * OBJECT_MARGIN;
				}

				/* Now determine the size of the minimum widgets. When there are two columns, then
				 * we want these columns to be slightly less wide. When there are two rows, then
				 * determine the size of the widgets based on the maximum size for a single row
				 * of widgets, or just the twice the widget height of the two row ones. */
				size->height = max(height[0], height[1] * 2 + 2);
				if (two_wide) {
					size->width  = (3 * TILE_PIXELS + 2 * OBJECT_MARGIN) * 2 + 2;
				} else {
					size->width  = 4 * TILE_PIXELS + 2 * OBJECT_MARGIN;
				}

				/* Get the right size for the single widget based on the current spec. */
				const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
				if (spec != NULL) {
					if (spec->views >= 2) size->width  = size->width  / 2 - 1;
					if (spec->views >= 4) size->height = size->height / 2 - 1;
				}
				break;
			}

			case WID_BO_INFO:
				size->height = this->info_height;
				break;

			case WID_BO_SELECT_MATRIX:
				fill->height = 1;
				resize->height = 1;
				break;

			default: break;
		}
	}

	virtual void DrawWidget(const Rect &r, int widget) const
	{
		switch (GB(widget, 0, 16)) {
			case WID_BO_CLASS_LIST: {
				int y = r.top;
				uint pos = 0;
				for (uint i = 0; i < ObjectClass::GetClassCount(); i++) {
					ObjectClass *objclass = ObjectClass::Get((ObjectClassID)i);
					if (objclass->GetUISpecCount() == 0) continue;
					if (!this->vscroll->IsVisible(pos++)) continue;
					SetDParam(0, objclass->name);
					DrawString(r.left + WD_MATRIX_LEFT, r.right + WD_MATRIX_RIGHT, y + WD_MATRIX_TOP, STR_JUST_STRING,
							((int)i == _selected_object_class) ? TC_WHITE : TC_BLACK);
					y += this->line_height;
				}
				break;
			}

			case WID_BO_OBJECT_SPRITE: {
				const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
				if (spec == NULL) break;

				/* Height of the selection matrix.
				 * Depending on the number of views, the matrix has a 1x1, 1x2, 2x1 or 2x2 layout. To make the previews
				 * look nice in all layouts, we use the 4x4 layout (smallest previews) as starting point. For the bigger
				 * previews in the layouts with less views we add space homogeneously on all sides, so the 4x4 preview-rectangle
				 * is centered in the 2x1, 1x2 resp. 1x1 buttons. */
				uint matrix_height = this->GetWidget<NWidgetMatrix>(WID_BO_OBJECT_MATRIX)->current_y;

				DrawPixelInfo tmp_dpi;
				/* Set up a clipping area for the preview. */
				if (FillDrawPixelInfo(&tmp_dpi, r.left, r.top, r.right - r.left + 1, r.bottom - r.top + 1)) {
					DrawPixelInfo *old_dpi = _cur_dpi;
					_cur_dpi = &tmp_dpi;
					if (spec->grf_prop.grffile == NULL) {
						extern const DrawTileSprites _objects[];
						const DrawTileSprites *dts = &_objects[spec->grf_prop.local_id];
						DrawOrigTileSeqInGUI((r.right - r.left) / 2 - 1, (r.bottom - r.top + matrix_height / 2) / 2 - OBJECT_MARGIN - TILE_PIXELS, dts, PAL_NONE);
					} else {
						DrawNewObjectTileInGUI((r.right - r.left) / 2 - 1, (r.bottom - r.top + matrix_height / 2) / 2 - OBJECT_MARGIN - TILE_PIXELS, spec, GB(widget, 16, 16));
					}
					_cur_dpi = old_dpi;
				}
				break;
			}

			case WID_BO_SELECT_IMAGE: {
				ObjectClass *objclass = ObjectClass::Get(_selected_object_class);
				int obj_index = objclass->GetIndexFromUI(GB(widget, 16, 16));
				if (obj_index < 0) break;
				const ObjectSpec *spec = objclass->GetSpec(obj_index);
				if (spec == NULL) break;

				if (!spec->IsAvailable()) {
					GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_BLACK, FILLRECT_CHECKER);
				}
				DrawPixelInfo tmp_dpi;
				/* Set up a clipping area for the preview. */
				if (FillDrawPixelInfo(&tmp_dpi, r.left + 1, r.top, (r.right - 1) - (r.left + 1) + 1, r.bottom - r.top + 1)) {
					DrawPixelInfo *old_dpi = _cur_dpi;
					_cur_dpi = &tmp_dpi;
					if (spec->grf_prop.grffile == NULL) {
						extern const DrawTileSprites _objects[];
						const DrawTileSprites *dts = &_objects[spec->grf_prop.local_id];
						DrawOrigTileSeqInGUI((r.right - r.left) / 2 - 1, r.bottom - r.top - OBJECT_MARGIN - TILE_PIXELS, dts, PAL_NONE);
					} else {
						DrawNewObjectTileInGUI((r.right - r.left) / 2 - 1, r.bottom - r.top - OBJECT_MARGIN - TILE_PIXELS, spec,
								min(_selected_object_view, spec->views - 1));
					}
					_cur_dpi = old_dpi;
				}
				break;
			}

			case WID_BO_INFO: {
				const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
				if (spec == NULL) break;

				/* Get the extra message for the GUI */
				if (HasBit(spec->callback_mask, CBM_OBJ_FUND_MORE_TEXT)) {
					uint16 callback_res = GetObjectCallback(CBID_OBJECT_FUND_MORE_TEXT, 0, 0, spec, NULL, INVALID_TILE, _selected_object_view);
					if (callback_res != CALLBACK_FAILED && callback_res != 0x400) {
						if (callback_res > 0x400) {
							ErrorUnknownCallbackResult(spec->grf_prop.grffile->grfid, CBID_OBJECT_FUND_MORE_TEXT, callback_res);
						} else {
							StringID message = GetGRFStringID(spec->grf_prop.grffile->grfid, 0xD000 + callback_res);
							if (message != STR_NULL && message != STR_UNDEFINED) {
								StartTextRefStackUsage(6);
								/* Use all the available space left from where we stand up to the
								 * end of the window. We ALSO enlarge the window if needed, so we
								 * can 'go' wild with the bottom of the window. */
								int y = DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, message, TC_ORANGE) - r.top;
								StopTextRefStackUsage();
								if (y > this->info_height) {
									BuildObjectWindow *bow = const_cast<BuildObjectWindow *>(this);
									bow->info_height = y + 2;
									bow->ReInit();
								}
							}
						}
					}
				}
			}
		}
	}

	/**
	 * Select the specified object in #_selected_object_class class.
	 * @param object_index Object index to select, \c -1 means select nothing.
	 */
	void SelectOtherObject(int object_index)
	{
		_selected_object_index = object_index;
		if (_selected_object_index != -1) {
			const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
			_selected_object_view = min(_selected_object_view, spec->views - 1);
			this->ReInit();
		} else {
			_selected_object_view = 0;
		}

		this->GetWidget<NWidgetMatrix>(WID_BO_OBJECT_MATRIX)->SetClicked(_selected_object_view);
		this->GetWidget<NWidgetMatrix>(WID_BO_SELECT_MATRIX)->SetClicked(_selected_object_index != -1 ? ObjectClass::Get(_selected_object_class)->GetUIFromIndex(_selected_object_index) : -1);
		this->UpdateSelectSize();
		this->SetDirty();
	}

	void UpdateSelectSize()
	{
		if (_selected_object_index == -1) {
			SetTileSelectSize(1, 1);
		} else {
			const ObjectSpec *spec = ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index);
			int w = GB(spec->size, HasBit(_selected_object_view, 0) ? 4 : 0, 4);
			int h = GB(spec->size, HasBit(_selected_object_view, 0) ? 0 : 4, 4);
			SetTileSelectSize(w, h);
		}
	}

	virtual void OnResize()
	{
		this->vscroll->SetCapacityFromWidget(this, WID_BO_CLASS_LIST);
		this->GetWidget<NWidgetCore>(WID_BO_CLASS_LIST)->widget_data = (this->vscroll->GetCapacity() << MAT_ROW_START) + (1 << MAT_COL_START);
	}

	virtual void OnClick(Point pt, int widget, int click_count)
	{
		switch (GB(widget, 0, 16)) {
			case WID_BO_CLASS_LIST: {
				int num_clicked = this->vscroll->GetPosition() + (pt.y - this->nested_array[widget]->pos_y) / this->line_height;
				if (num_clicked >= (int)ObjectClass::GetUIClassCount()) break;

				_selected_object_class = ObjectClass::GetUIClass(num_clicked);
				this->GetWidget<NWidgetMatrix>(WID_BO_SELECT_MATRIX)->SetCount(ObjectClass::Get(_selected_object_class)->GetUISpecCount());
				this->SelectFirstAvailableObject(false);
				break;
			}

			case WID_BO_SELECT_IMAGE: {
				ObjectClass *objclass = ObjectClass::Get(_selected_object_class);
				int num_clicked = objclass->GetIndexFromUI(GB(widget, 16, 16));
				if (num_clicked >= 0 && objclass->GetSpec(num_clicked)->IsAvailable()) this->SelectOtherObject(num_clicked);
				break;
			}

			case WID_BO_OBJECT_SPRITE:
				if (_selected_object_index != -1) {
					_selected_object_view = GB(widget, 16, 16);
					this->GetWidget<NWidgetMatrix>(WID_BO_OBJECT_MATRIX)->SetClicked(_selected_object_view);
					this->UpdateSelectSize();
					this->SetDirty();
				}
				break;
		}
	}

	/**
	 * Select the first available object.
	 * @param change_class If true, change the class if no object in the current
	 *   class is available.
	 */
	void SelectFirstAvailableObject(bool change_class)
	{
		/* First try to select an object in the selected class. */
		ObjectClass *sel_objclass = ObjectClass::Get(_selected_object_class);
		for (uint i = 0; i < sel_objclass->GetSpecCount(); i++) {
			const ObjectSpec *spec = sel_objclass->GetSpec(i);
			if (spec->IsAvailable()) {
				this->SelectOtherObject(i);
				return;
			}
		}
		if (change_class) {
			/* If that fails, select the first available object
			 * from a random class. */
			for (ObjectClassID j = OBJECT_CLASS_BEGIN; j < OBJECT_CLASS_MAX; j++) {
				ObjectClass *objclass = ObjectClass::Get(j);
				for (uint i = 0; i < objclass->GetSpecCount(); i++) {
					const ObjectSpec *spec = objclass->GetSpec(i);
					if (spec->IsAvailable()) {
						_selected_object_class = j;
						this->SelectOtherObject(i);
						return;
					}
				}
			}
		}
		/* If all objects are unavailable, select nothing... */
		if (ObjectClass::Get(_selected_object_class)->GetUISpecCount() == 0) {
			/* ... but make sure that the class is not empty. */
			for (ObjectClassID j = OBJECT_CLASS_BEGIN; j < OBJECT_CLASS_MAX; j++) {
				if (ObjectClass::Get(j)->GetUISpecCount() > 0) {
					_selected_object_class = j;
					break;
				}
			}
		}
		this->SelectOtherObject(-1);
	}
};

static const NWidgetPart _nested_build_object_widgets[] = {
	NWidget(NWID_HORIZONTAL),
		NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
		NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_OBJECT_BUILD_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
	EndContainer(),
	NWidget(WWT_PANEL, COLOUR_DARK_GREEN),
		NWidget(NWID_HORIZONTAL), SetPadding(2, 0, 0, 0),
			NWidget(NWID_VERTICAL),
				NWidget(NWID_HORIZONTAL), SetPadding(0, 5, 2, 5),
					NWidget(WWT_MATRIX, COLOUR_GREY, WID_BO_CLASS_LIST), SetFill(1, 0), SetDataTip(0x501, STR_OBJECT_BUILD_CLASS_TOOLTIP), SetScrollbar(WID_BO_SCROLLBAR),
					NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_BO_SCROLLBAR),
				EndContainer(),
				NWidget(NWID_HORIZONTAL), SetPadding(0, 5, 0, 5),
					NWidget(NWID_MATRIX, COLOUR_DARK_GREEN, WID_BO_OBJECT_MATRIX), SetPIP(0, 2, 0),
						NWidget(WWT_PANEL, COLOUR_GREY, WID_BO_OBJECT_SPRITE), SetDataTip(0x0, STR_OBJECT_BUILD_PREVIEW_TOOLTIP), EndContainer(),
					EndContainer(),
				EndContainer(),
				NWidget(WWT_TEXT, COLOUR_DARK_GREEN, WID_BO_OBJECT_NAME), SetDataTip(STR_ORANGE_STRING, STR_NULL), SetPadding(2, 5, 2, 5),
				NWidget(WWT_TEXT, COLOUR_DARK_GREEN, WID_BO_OBJECT_SIZE), SetDataTip(STR_OBJECT_BUILD_SIZE, STR_NULL), SetPadding(2, 5, 2, 5),
			EndContainer(),
			NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetScrollbar(WID_BO_SELECT_SCROLL),
				NWidget(NWID_HORIZONTAL),
					NWidget(NWID_MATRIX, COLOUR_DARK_GREEN, WID_BO_SELECT_MATRIX), SetFill(0, 1), SetPIP(0, 2, 0),
						NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_BO_SELECT_IMAGE), SetMinimalSize(66, 60), SetDataTip(0x0, STR_OBJECT_BUILD_TOOLTIP),
								SetFill(0, 0), SetResize(0, 0), SetScrollbar(WID_BO_SELECT_SCROLL),
						EndContainer(),
					EndContainer(),
					NWidget(NWID_VSCROLLBAR, COLOUR_DARK_GREEN, WID_BO_SELECT_SCROLL),
				EndContainer(),
			EndContainer(),
		EndContainer(),
		NWidget(NWID_HORIZONTAL),
			NWidget(WWT_EMPTY, INVALID_COLOUR, WID_BO_INFO), SetPadding(2, 5, 0, 5), SetFill(1, 0), SetResize(1, 0),
			NWidget(NWID_VERTICAL),
				NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetFill(0, 1), EndContainer(),
				NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN),
			EndContainer(),
		EndContainer(),
	EndContainer(),
};

static const WindowDesc _build_object_desc(
	WDP_AUTO, 0, 0,
	WC_BUILD_OBJECT, WC_BUILD_TOOLBAR,
	WDF_CONSTRUCTION,
	_nested_build_object_widgets, lengthof(_nested_build_object_widgets)
);

/**
 * Show our object picker.
 * @param w The toolbar window we're associated with.
 */
void ShowBuildObjectPicker(Window *w)
{
	new BuildObjectWindow(&_build_object_desc, w);
}

/** Reset all data of the object GUI. */
void InitializeObjectGui()
{
	_selected_object_class = (ObjectClassID)0;
}

/**
 * PlaceProc function, called when someone pressed the button if the
 *  object-tool is selected
 * @param tile on which to place the object
 */
void PlaceProc_Object(TileIndex tile)
{
	DoCommandP(tile, ObjectClass::Get(_selected_object_class)->GetSpec(_selected_object_index)->Index(), _selected_object_view, CMD_BUILD_OBJECT | CMD_MSG(STR_ERROR_CAN_T_BUILD_OBJECT), CcTerraform);
}