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
|
/*
* $Id$
*
* KStyle
* Copyright (C) 2001-2002 Karol Szwed <[email protected]>
*
* TQWindowsStyle CC_ListView and style images were kindly donated by TrollTech,
* Copyright (C) 1998-2000 TrollTech AS.
*
* Many thanks to Bradley T. Hughes for the 3 button scrollbar code.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License version 2 as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __KSTYLE_H
#define __KSTYLE_H
// W A R N I N G
// -------------
// This API is still subject to change.
// I will remove this warning when I feel the API is sufficiently flexible.
#include <tqcommonstyle.h>
#include <kdelibs_export.h>
class KPixmap;
struct KStylePrivate;
/**
* Simplifies and extends the TQStyle API to make style coding easier.
*
* The KStyle class provides a simple internal menu transparency engine
* which attempts to use XRender for accelerated blending where requested,
* or falls back to fast internal software tinting/blending routines.
* It also simplifies more complex portions of the TQStyle API, such as
* the PopupMenuItems, ScrollBars and Sliders by providing extra "primitive
* elements" which are simple to implement by the style writer.
*
* @see TQStyle::QStyle
* @see TQCommonStyle::QCommonStyle
* @author Karol Szwed ([email protected])
* @version $Id$
*/
class KDEFX_EXPORT KStyle: public TQCommonStyle
{
Q_OBJECT
TQ_OBJECT
public:
/**
* KStyle Flags:
*
* @li Default - Default style setting, where menu transparency
* and the FilledFrameWorkaround are disabled.
*
* @li AllowMenuTransparency - Enable this flag to use KStyle's
* internal menu transparency engine.
*
* @li FilledFrameWorkaround - Enable this flag to facilitate
* proper repaints of QMenuBars and QToolBars when the style chooses
* to paint the interior of a TQFrame. The style primitives in question
* are PE_PanelMenuBar and PE_PanelDockWindow. The HighColor style uses
* this workaround to enable painting of gradients in menubars and
* toolbars.
*/
typedef uint KStyleFlags;
enum KStyleOption {
Default = 0x00000000, //!< All options disabled
AllowMenuTransparency = 0x00000001, //!< Internal transparency enabled
FilledFrameWorkaround = 0x00000002 //!< Filled frames enabled
};
/**
* KStyle ScrollBarType:
*
* Allows the style writer to easily select what type of scrollbar
* should be used without having to duplicate large amounts of source
* code by implementing the complex control CC_ScrollBar.
*
* @li WindowsStyleScrollBar - Two button scrollbar with the previous
* button at the top/left, and the next button at the bottom/right.
*
* @li PlatinumStyleScrollBar - Two button scrollbar with both the
* previous and next buttons at the bottom/right.
*
* @li ThreeButtonScrollBar - %KDE style three button scrollbar with
* two previous buttons, and one next button. The next button is always
* at the bottom/right, whilst the two previous buttons are on either
* end of the scrollbar.
*
* @li NextStyleScrollBar - Similar to the PlatinumStyle scroll bar, but
* with the buttons grouped on the opposite end of the scrollbar.
*
* @see KStyle::KStyle()
*/
enum KStyleScrollBarType {
WindowsStyleScrollBar = 0x00000000, //!< two button, windows style
PlatinumStyleScrollBar = 0x00000001, //!< two button, platinum style
ThreeButtonScrollBar = 0x00000002, //!< three buttons, %KDE style
NextStyleScrollBar = 0x00000004 //!< two button, NeXT style
};
/**
* Constructs a KStyle object.
*
* Select the appropriate KStyle flags and scrollbar type
* for your style. The user's style preferences selected in KControl
* are read by using TQSettings and are automatically applied to the style.
* As a fallback, KStyle paints progressbars and tabbars. It inherits from
* TQCommonStyle for speed, so don't expect much to be implemented.
*
* It is advisable to use a currently implemented style such as the HighColor
* style as a foundation for any new KStyle, so the limited number of
* drawing fallbacks should not prove problematic.
*
* @param flags the style to be applied
* @param sbtype the scroll bar type
* @see KStyle::KStyleFlags
* @see KStyle::KStyleScrollBarType
* @author Karol Szwed ([email protected])
*/
KStyle( KStyleFlags flags = KStyle::Default,
KStyleScrollBarType sbtype = KStyle::WindowsStyleScrollBar );
/**
* Destructs the KStyle object.
*/
~KStyle();
/**
* Returns the default widget style depending on color depth.
*/
static TQString defaultStyle();
/**
* Modifies the scrollbar type used by the style.
*
* This function is only provided for convenience. It allows
* you to make a late decision about what scrollbar type to use for the
* style after performing some processing in your style's constructor.
* In most situations however, setting the scrollbar type via the KStyle
* constructor should suffice.
* @param sbtype the scroll bar type
* @see KStyle::KStyleScrollBarType
*/
void setScrollBarType(KStyleScrollBarType sbtype);
/**
* Returns the KStyle flags used to initialize the style.
*
* This is used solely for the kcmstyle module, and hence is internal.
*/
KStyleFlags styleFlags() const;
// ---------------------------------------------------------------------------
/**
* This virtual function defines the pixmap used to blend between the popup
* menu and the background to create different menu transparency effects.
* For example, you can fill the pixmap "pix" with a gradient based on the
* popup's tqcolorGroup, a texture, or some other fancy painting routine.
* KStyle will then internally blend this pixmap with a snapshot of the
* background behind the popupMenu to create the illusion of transparency.
*
* This virtual is never called if XRender/Software blending is disabled by
* the user in KDE's style control module.
*/
virtual void renderMenuBlendPixmap( KPixmap& pix, const TQColorGroup& cg,
const TQPopupMenu* popup ) const;
/**
* KStyle Primitive Elements:
*
* The KStyle class extends the Qt's Style API by providing certain
* simplifications for parts of TQStyle. To do this, the KStylePrimitive
* elements were defined, which are very similar to Qt's PrimitiveElement.
*
* The first three Handle primitives simplify and extend PE_DockWindowHandle,
* so do not reimplement PE_DockWindowHandle if you want the KStyle handle
* simplifications to be operable. Similarly do not reimplement CC_Slider,
* SC_SliderGroove and SC_SliderHandle when using the KStyle slider
* primitives. KStyle automatically double-buffers slider painting
* when they are drawn via these KStyle primitives to avoid flicker.
*
* @li KPE_DockWindowHandle - This primitive is already implemented in KStyle,
* and paints a bevelled rect with the DockWindow caption text. Re-implement
* this primitive to perform other more fancy effects when drawing the dock window
* handle.
*
* @li KPE_ToolBarHandle - This primitive must be reimplemented. It currently
* only paints a filled rectangle as default behavior. This primitive is used
* to render TQToolBar handles.
*
* @li KPE_GeneralHandle - This primitive must be reimplemented. It is used
* to render general handles that are not part of a TQToolBar or TQDockWindow, such
* as the applet handles used in Kicker. The default implementation paints a filled
* rect of arbitrary color.
*
* @li KPE_SliderGroove - This primitive must be reimplemented. It is used to
* paint the slider groove. The default implementation paints a filled rect of
* arbitrary color.
*
* @li KPE_SliderHandle - This primitive must be reimplemented. It is used to
* paint the slider handle. The default implementation paints a filled rect of
* arbitrary color.
*
* @li KPE_ListViewExpander - This primitive is already implemented in KStyle. It
* is used to draw the Expand/Collapse element in QListViews. To indicate the
* expanded state, the style flags are set to Style_Off, while Style_On implies collapsed.
*
* @li KPE_ListViewBranch - This primitive is already implemented in KStyle. It is
* used to draw the ListView branches where necessary.
*/
enum KStylePrimitive {
KPE_DockWindowHandle,
KPE_ToolBarHandle,
KPE_GeneralHandle,
KPE_SliderGroove,
KPE_SliderHandle,
KPE_ListViewExpander,
KPE_ListViewBranch
};
/**
* This function is identical to Qt's TQStyle::tqdrawPrimitive(), except that
* it adds one further parameter, 'widget', that can be used to determine
* the widget state of the KStylePrimitive in question.
*
* @see KStyle::KStylePrimitive
* @see TQStyle::tqdrawPrimitive
* @see TQStyle::tqdrawComplexControl
*/
virtual void drawKStylePrimitive( KStylePrimitive kpe,
TQPainter* p,
const TQWidget* widget,
const TQRect &r,
const TQColorGroup &cg,
SFlags flags = Style_Default,
const TQStyleOption& = TQStyleOption::SO_Default ) const;
enum KStylePixelMetric {
KPM_MenuItemSeparatorHeight = 0x00000001,
KPM_MenuItemHMargin = 0x00000002,
KPM_MenuItemVMargin = 0x00000004,
KPM_MenuItemHFrame = 0x00000008,
KPM_MenuItemVFrame = 0x00000010,
KPM_MenuItemCheckMarkHMargin = 0x00000020,
KPM_MenuItemArrowHMargin = 0x00000040,
KPM_MenuItemTabSpacing = 0x00000080,
KPM_ListViewBranchThickness = 0x00000100
};
int kPixelMetric( KStylePixelMetric kpm, const TQWidget* widget = 0 ) const;
// ---------------------------------------------------------------------------
void polish( TQWidget* widget );
void unPolish( TQWidget* widget );
void polishPopupMenu( TQPopupMenu* );
void tqdrawPrimitive( TQ_PrimitiveElement pe,
TQPainter* p,
const TQRect &r,
const TQColorGroup &cg,
SFlags flags = Style_Default,
const TQStyleOption& = TQStyleOption::SO_Default ) const;
// #ifdef USE_QT4 // kdebindings / smoke needs this function declaration available at all times. Furthermore I don't think it would hurt to have the declaration available at all times...so leave these commented out for now
// void tqdrawPrimitive( TQ_ControlElement pe,
// TQPainter* p,
// const TQRect &r,
// const TQColorGroup &cg,
// SFlags flags = Style_Default,
// const TQStyleOption& = TQStyleOption::SO_Default ) const;
// #endif // USE_QT4
void tqdrawControl( TQ_ControlElement element,
TQPainter* p,
const TQWidget* widget,
const TQRect &r,
const TQColorGroup &cg,
SFlags flags = Style_Default,
const TQStyleOption& = TQStyleOption::SO_Default ) const;
void tqdrawComplexControl( TQ_ComplexControl control,
TQPainter *p,
const TQWidget* widget,
const TQRect &r,
const TQColorGroup &cg,
SFlags flags = Style_Default,
SCFlags controls = SC_All,
SCFlags active = SC_None,
const TQStyleOption& = TQStyleOption::SO_Default ) const;
SubControl querySubControl( TQ_ComplexControl control,
const TQWidget* widget,
const TQPoint &pos,
const TQStyleOption& = TQStyleOption::SO_Default ) const;
TQRect querySubControlMetrics( TQ_ComplexControl control,
const TQWidget* widget,
SubControl sc,
const TQStyleOption& = TQStyleOption::SO_Default ) const;
int tqpixelMetric( PixelMetric m,
const TQWidget* widget = 0 ) const;
TQRect subRect( SubRect r,
const TQWidget* widget ) const;
TQPixmap stylePixmap( StylePixmap stylepixmap,
const TQWidget* widget = 0,
const TQStyleOption& = TQStyleOption::SO_Default ) const;
int tqstyleHint( TQ_StyleHint sh,
const TQWidget* w = 0,
const TQStyleOption &opt = TQStyleOption::SO_Default,
TQStyleHintReturn* shr = 0 ) const;
protected:
bool eventFilter( TQObject* object, TQEvent* event );
private:
// Disable copy constructor and = operator
KStyle( const KStyle & );
KStyle& operator=( const KStyle & );
protected:
virtual void virtual_hook( int id, void* data );
private:
KStylePrivate *d;
};
// vim: set noet ts=4 sw=4:
#endif
|