source: trunk/src/gui/styles/qcdestyle.cpp@ 508

Last change on this file since 508 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
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1/****************************************************************************
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3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtGui module of the Qt Toolkit.
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41
42#include "qcdestyle.h"
43
44#if !defined(QT_NO_STYLE_CDE) || defined(QT_PLUGIN)
45
46#include "qmenu.h"
47#include "qapplication.h"
48#include "qpainter.h"
49#include "qdrawutil.h"
50#include "qpixmap.h"
51#include "qpalette.h"
52#include "qwidget.h"
53#include "qpushbutton.h"
54#include "qscrollbar.h"
55#include "qtabbar.h"
56#include "qtabwidget.h"
57#include "qlistview.h"
58#include "qsplitter.h"
59#include "qslider.h"
60#include "qcombobox.h"
61#include "qlineedit.h"
62#include "qprogressbar.h"
63#include "qimage.h"
64#include "qfocusframe.h"
65#include "qpainterpath.h"
66#include "qdebug.h"
67#include <limits.h>
68
69QT_BEGIN_NAMESPACE
70
71/*!
72 \class QCDEStyle
73 \brief The QCDEStyle class provides a CDE look and feel.
74
75 \ingroup appearance
76
77 This style provides a slightly improved Motif look similar to some
78 versions of the Common Desktop Environment (CDE). The main
79 differences are thinner frames and more modern radio buttons and
80 checkboxes. Together with a dark background and a bright
81 text/foreground color, the style looks quite attractive (at least
82 for Motif fans).
83
84 Note that most of the functions provided by QCDEStyle are
85 reimplementations of QStyle functions; see QStyle for their
86 documentation. QCDEStyle provides overloads for drawControl() and
87 drawPrimitive() which are documented here.
88
89 \img qcdestyle.png
90 \sa QWindowsXPStyle, QMacStyle, QWindowsStyle, QPlastiqueStyle, QMotifStyle
91*/
92
93/*!
94 Constructs a QCDEStyle.
95
96 If \a useHighlightCols is false (the default), then the style will
97 polish the application's color palette to emulate the Motif way of
98 highlighting, which is a simple inversion between the base and the
99 text color.
100*/
101QCDEStyle::QCDEStyle(bool useHighlightCols)
102 : QMotifStyle(useHighlightCols)
103{
104}
105
106/*!
107 Destroys the style.
108*/
109QCDEStyle::~QCDEStyle()
110{
111}
112
113
114/*!\reimp
115*/
116int QCDEStyle::pixelMetric(PixelMetric metric, const QStyleOption *option,
117 const QWidget *widget) const
118/*
119int QCDEStyle::pixelMetric(PixelMetric metric, const QStyleOption *option,
120 const QWidget *widget) const
121 */
122{
123 int ret = 0;
124
125 switch(metric) {
126 case PM_MenuBarPanelWidth:
127 case PM_DefaultFrameWidth:
128 case PM_FocusFrameVMargin:
129 case PM_FocusFrameHMargin:
130 case PM_MenuPanelWidth:
131 case PM_SpinBoxFrameWidth:
132 case PM_MenuBarVMargin:
133 case PM_MenuBarHMargin:
134 case PM_DockWidgetFrameWidth:
135 ret = 1;
136 break;
137 case PM_ScrollBarExtent:
138 ret = 13;
139 break;
140 default:
141 ret = QMotifStyle::pixelMetric(metric, option, widget);
142 break;
143 }
144 return ret;
145}
146
147/*!
148 \reimp
149*/
150void QCDEStyle::drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
151 const QWidget *widget) const
152{
153
154 switch(element) {
155 case CE_MenuBarItem: {
156 if (opt->state & State_Selected) // active item
157 qDrawShadePanel(p, opt->rect, opt->palette, true, 1,
158 &opt->palette.brush(QPalette::Button));
159 else // other item
160 p->fillRect(opt->rect, opt->palette.brush(QPalette::Button));
161 QCommonStyle::drawControl(element, opt, p, widget);
162 break; }
163 case CE_RubberBand: {
164 p->save();
165 p->setClipping(false);
166 QPainterPath path;
167 path.addRect(opt->rect);
168 path.addRect(opt->rect.adjusted(2, 2, -2, -2));
169 p->fillPath(path, opt->palette.color(QPalette::Active, QPalette::Text));
170 p->restore();
171 break; }
172 default:
173 QMotifStyle::drawControl(element, opt, p, widget);
174 break;
175 }
176}
177
178/*!
179 \reimp
180*/
181void QCDEStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
182 const QWidget *widget) const
183{
184 switch(pe) {
185 case PE_IndicatorCheckBox: {
186 bool down = opt->state & State_Sunken;
187 bool on = opt->state & State_On;
188 bool showUp = !(down ^ on);
189 QBrush fill = (showUp || (opt->state & State_NoChange)) ? opt->palette.brush(QPalette::Button) : opt->palette.brush(QPalette::Mid);
190 qDrawShadePanel(p, opt->rect, opt->palette, !showUp, pixelMetric(PM_DefaultFrameWidth), &opt->palette.brush(QPalette::Button));
191
192 if (on || (opt->state & State_NoChange)) {
193 QRect r = opt->rect;
194 QPolygon a(7 * 2);
195 int i, xx, yy;
196 xx = r.x() + 3;
197 yy = r.y() + 5;
198 if (opt->rect.width() <= 9) {
199 // When called from CE_MenuItem in QMotifStyle
200 xx -= 2;
201 yy -= 2;
202 }
203
204 for (i = 0; i < 3; i++) {
205 a.setPoint(2 * i, xx, yy);
206 a.setPoint(2 * i + 1, xx, yy + 2);
207 xx++; yy++;
208 }
209 yy -= 2;
210 for (i = 3; i < 7; i++) {
211 a.setPoint(2 * i, xx, yy);
212 a.setPoint(2 * i + 1, xx, yy + 2);
213 xx++; yy--;
214 }
215 if (opt->state & State_NoChange)
216 p->setPen(opt->palette.dark().color());
217 else
218 p->setPen(opt->palette.foreground().color());
219 p->drawPolyline(a);
220 }
221 if (!(opt->state & State_Enabled) && styleHint(SH_DitherDisabledText))
222 p->fillRect(opt->rect, QBrush(p->background().color(), Qt::Dense5Pattern));
223 } break;
224 case PE_IndicatorRadioButton:
225 {
226 QRect r = opt->rect;
227#define INTARRLEN(x) sizeof(x)/(sizeof(int)*2)
228 static const int pts1[] = { // up left lines
229 1,9, 1,8, 0,7, 0,4, 1,3, 1,2, 2,1, 3,1, 4,0, 7,0, 8,1, 9,1 };
230 static const int pts4[] = { // bottom right lines
231 2,10, 3,10, 4,11, 7,11, 8,10, 9,10, 10,9, 10,8, 11,7,
232 11,4, 10,3, 10,2 };
233 static const int pts5[] = { // inner fill
234 4,2, 7,2, 9,4, 9,7, 7,9, 4,9, 2,7, 2,4 };
235 bool down = opt->state & State_Sunken;
236 bool on = opt->state & State_On;
237 QPolygon a(INTARRLEN(pts1), pts1);
238
239 //center when rect is larger than indicator size
240 int xOffset = 0;
241 int yOffset = 0;
242 int indicatorWidth = pixelMetric(PM_ExclusiveIndicatorWidth);
243 int indicatorHeight = pixelMetric(PM_ExclusiveIndicatorWidth);
244 if (r.width() > indicatorWidth)
245 xOffset += (r.width() - indicatorWidth)/2;
246 if (r.height() > indicatorHeight)
247 yOffset += (r.height() - indicatorHeight)/2;
248 p->translate(xOffset, yOffset);
249
250 a.translate(r.x(), r.y());
251 QPen oldPen = p->pen();
252 QBrush oldBrush = p->brush();
253 p->setPen((down || on) ? opt->palette.dark().color() : opt->palette.light().color());
254 p->drawPolyline(a);
255 a.setPoints(INTARRLEN(pts4), pts4);
256 a.translate(r.x(), r.y());
257 p->setPen((down || on) ? opt->palette.light().color() : opt->palette.dark().color());
258 p->drawPolyline(a);
259 a.setPoints(INTARRLEN(pts5), pts5);
260 a.translate(r.x(), r.y());
261 QColor fillColor = on ? opt->palette.dark().color() : opt->palette.background().color();
262 p->setPen(fillColor);
263 p->setBrush(on ? opt->palette.brush(QPalette::Dark) :
264 opt->palette.brush(QPalette::Window));
265 p->drawPolygon(a);
266 if (!(opt->state & State_Enabled) && styleHint(SH_DitherDisabledText))
267 p->fillRect(opt->rect, QBrush(p->background().color(), Qt::Dense5Pattern));
268 p->setPen(oldPen);
269 p->setBrush(oldBrush);
270
271 p->translate(-xOffset, -yOffset);
272
273 } break;
274 default:
275 QMotifStyle::drawPrimitive(pe, opt, p, widget);
276 }
277}
278
279/*!\reimp*/
280QPalette QCDEStyle::standardPalette() const
281{
282 QColor background(0xb6, 0xb6, 0xcf);
283 QColor light = background.lighter();
284 QColor mid = background.darker(150);
285 QColor dark = background.darker();
286 QPalette palette(Qt::black, background, light, dark, mid, Qt::black, Qt::white);
287 palette.setBrush(QPalette::Disabled, QPalette::WindowText, dark);
288 palette.setBrush(QPalette::Disabled, QPalette::Text, dark);
289 palette.setBrush(QPalette::Disabled, QPalette::ButtonText, dark);
290 palette.setBrush(QPalette::Disabled, QPalette::Base, background);
291 return palette;
292}
293
294/*!
295 \internal
296*/
297QIcon QCDEStyle::standardIconImplementation(StandardPixmap standardIcon, const QStyleOption *opt,
298 const QWidget *widget) const
299{
300 return QMotifStyle::standardIconImplementation(standardIcon, opt, widget);
301}
302
303QT_END_NAMESPACE
304
305#endif
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