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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef THEME_LAYOUT_H
#define THEME_LAYOUT_H
#include "common/array.h"
#include "common/rect.h"
#include "graphics/font.h"
#ifdef LAYOUT_DEBUG_DIALOG
namespace Graphics {
struct Surface;
}
#endif
namespace GUI {
class Widget;
class ThemeLayout {
friend class ThemeLayoutMain;
friend class ThemeLayoutStacked;
friend class ThemeLayoutSpacing;
friend class ThemeLayoutWidget;
public:
enum LayoutType {
kLayoutMain,
kLayoutVertical,
kLayoutHorizontal,
kLayoutWidget,
kLayoutTabWidget,
kLayoutSpace
};
/// Cross-direction alignment of layout children.
enum ItemAlign {
kItemAlignStart, ///< Items are aligned to the left for vertical layouts or to the top for horizontal layouts
kItemAlignCenter, ///< Items are centered in the container
kItemAlignEnd, ///< Items are aligned to the right for vertical layouts or to the bottom for horizontal layouts
kItemAlignStretch ///< Items are resized to match the size of the layout in the cross-direction
};
ThemeLayout(ThemeLayout *p) :
_parent(p), _x(0), _y(0), _w(-1), _h(-1),
_defaultW(-1), _defaultH(-1),
_textHAlign(Graphics::kTextAlignInvalid) {}
virtual ~ThemeLayout() {
for (uint i = 0; i < _children.size(); ++i)
delete _children[i];
}
virtual void reflowLayout(Widget *widgetChain) = 0;
virtual void resetLayout();
void addChild(ThemeLayout *child) { _children.push_back(child); }
void setPadding(int8 left, int8 right, int8 top, int8 bottom) {
_padding.left = left;
_padding.right = right;
_padding.top = top;
_padding.bottom = bottom;
}
protected:
int16 getWidth() { return _w; }
int16 getHeight() { return _h; }
void offsetX(int newX) {
_x += newX;
for (uint i = 0; i < _children.size(); ++i)
_children[i]->offsetX(newX);
}
void offsetY(int newY) {
_y += newY;
for (uint i = 0; i < _children.size(); ++i)
_children[i]->offsetY(newY);
}
void setWidth(int16 width) { _w = width; }
void setHeight(int16 height) { _h = height; }
void setTextHAlign(Graphics::TextAlign align) { _textHAlign = align; }
/**
* Checks if the layout element is attached to a GUI widget
*
* Layout elements that are not bound do not take space.
*/
virtual bool isBound(Widget *widgetChain) const { return true; }
virtual LayoutType getLayoutType() const = 0;
virtual ThemeLayout *makeClone(ThemeLayout *newParent) = 0;
public:
virtual bool getWidgetData(const Common::String &name, int16 &x, int16 &y, uint16 &w, uint16 &h);
virtual Graphics::TextAlign getWidgetTextHAlign(const Common::String &name);
void importLayout(ThemeLayout *layout);
Graphics::TextAlign getTextHAlign() { return _textHAlign; }
#ifdef LAYOUT_DEBUG_DIALOG
void debugDraw(Graphics::Surface *screen, const Graphics::Font *font);
virtual const char *getName() const = 0;
#endif
protected:
ThemeLayout *_parent;
int16 _x, _y, _w, _h;
Common::Rect _padding;
Common::Array<ThemeLayout *> _children;
int16 _defaultW, _defaultH;
Graphics::TextAlign _textHAlign;
};
class ThemeLayoutMain : public ThemeLayout {
public:
ThemeLayoutMain(const Common::String &name, const Common::String &overlays, bool enabled, int inset) :
ThemeLayout(nullptr),
_name(name),
_overlays(overlays),
_enabled(enabled),
_inset(inset) {
_w = _defaultW = -1;
_h = _defaultH = -1;
_x = _defaultX = -1;
_y = _defaultY = -1;
}
void reflowLayout(Widget *widgetChain) override;
void resetLayout() {
ThemeLayout::resetLayout();
_x = _defaultX;
_y = _defaultY;
}
const char *getName() const { return _name.c_str(); }
protected:
LayoutType getLayoutType() const override { return kLayoutMain; }
ThemeLayout *makeClone(ThemeLayout *newParent) { assert(!"Do not copy Main Layouts!"); return 0; }
int16 _defaultX;
int16 _defaultY;
Common::String _name;
Common::String _overlays;
bool _enabled;
int _inset;
};
class ThemeLayoutStacked : public ThemeLayout {
public:
ThemeLayoutStacked(ThemeLayout *p, LayoutType type, int spacing, ItemAlign itemAlign) :
ThemeLayout(p), _type(type), _itemAlign(itemAlign) {
assert((type == kLayoutVertical) || (type == kLayoutHorizontal));
_spacing = spacing;
}
void reflowLayout(Widget *widgetChain) override {
if (_type == kLayoutVertical)
reflowLayoutVertical(widgetChain);
else
reflowLayoutHorizontal(widgetChain);
}
void reflowLayoutHorizontal(Widget *widgetChain);
void reflowLayoutVertical(Widget *widgetChain);
#ifdef LAYOUT_DEBUG_DIALOG
const char *getName() const {
return (_type == kLayoutVertical)
? "Vertical Layout" : "Horizontal Layout";
}
#endif
protected:
int16 getParentWidth();
int16 getParentHeight();
LayoutType getLayoutType() const override { return _type; }
ThemeLayout *makeClone(ThemeLayout *newParent) {
ThemeLayoutStacked *n = new ThemeLayoutStacked(*this);
n->_parent = newParent;
for (uint i = 0; i < n->_children.size(); ++i)
n->_children[i] = n->_children[i]->makeClone(n);
return n;
}
const LayoutType _type;
ItemAlign _itemAlign;
int8 _spacing;
};
class ThemeLayoutWidget : public ThemeLayout {
public:
ThemeLayoutWidget(ThemeLayout *p, const Common::String &name, int16 w, int16 h, Graphics::TextAlign align) : ThemeLayout(p), _name(name) {
_w = _defaultW = w;
_h = _defaultH = h;
setTextHAlign(align);
}
bool getWidgetData(const Common::String &name, int16 &x, int16 &y, uint16 &w, uint16 &h);
Graphics::TextAlign getWidgetTextHAlign(const Common::String &name);
void reflowLayout(Widget *widgetChain) override;
virtual const char *getName() const { return _name.c_str(); }
protected:
LayoutType getLayoutType() const override { return kLayoutWidget; }
bool isBound(Widget *widgetChain) const override;
Widget *getWidget(Widget *widgetChain) const;
ThemeLayout *makeClone(ThemeLayout *newParent) {
ThemeLayout *n = new ThemeLayoutWidget(*this);
n->_parent = newParent;
return n;
}
Common::String _name;
};
class ThemeLayoutTabWidget : public ThemeLayoutWidget {
int _tabHeight;
public:
ThemeLayoutTabWidget(ThemeLayout *p, const Common::String &name, int16 w, int16 h, Graphics::TextAlign align, int tabHeight):
ThemeLayoutWidget(p, name, w, h, align) {
_tabHeight = tabHeight;
}
void reflowLayout(Widget *widgetChain) override {
for (uint i = 0; i < _children.size(); ++i) {
_children[i]->reflowLayout(widgetChain);
}
}
virtual bool getWidgetData(const Common::String &name, int16 &x, int16 &y, uint16 &w, uint16 &h) {
if (ThemeLayoutWidget::getWidgetData(name, x, y, w, h)) {
h -= _tabHeight;
return true;
}
return false;
}
protected:
LayoutType getLayoutType() const override { return kLayoutTabWidget; }
ThemeLayout *makeClone(ThemeLayout *newParent) {
ThemeLayoutTabWidget *n = new ThemeLayoutTabWidget(*this);
n->_parent = newParent;
return n;
}
};
class ThemeLayoutSpacing : public ThemeLayout {
public:
ThemeLayoutSpacing(ThemeLayout *p, int size) : ThemeLayout(p) {
if (p->getLayoutType() == kLayoutHorizontal) {
_w = _defaultW = size;
_h = _defaultH = 1;
} else if (p->getLayoutType() == kLayoutVertical) {
_w = _defaultW = 1;
_h = _defaultH = size;
}
}
bool getWidgetData(const Common::String &name, int16 &x, int16 &y, uint16 &w, uint16 &h) { return false; }
void reflowLayout(Widget *widgetChain) override {}
#ifdef LAYOUT_DEBUG_DIALOG
const char *getName() const { return "SPACE"; }
#endif
protected:
LayoutType getLayoutType() const override { return kLayoutSpace; }
ThemeLayout *makeClone(ThemeLayout *newParent) {
ThemeLayout *n = new ThemeLayoutSpacing(*this);
n->_parent = newParent;
return n;
}
};
}
#endif
|