1 | /* Copyright (C) 2005 Kevin Smith
|
---|
2 | notice goes here
|
---|
3 | */
|
---|
4 |
|
---|
5 |
|
---|
6 | /* This file is heavily based on part of the KDE libraries
|
---|
7 | Copyright (C) 2003 Stephan Binner <[email protected]>
|
---|
8 | Copyright (C) 2003 Zack Rusin <[email protected]>
|
---|
9 | */
|
---|
10 |
|
---|
11 | #include <qapplication.h>
|
---|
12 | #include <qcursor.h>
|
---|
13 | #include <qpainter.h>
|
---|
14 | #include <qstyle.h>
|
---|
15 | #include <qtimer.h>
|
---|
16 | #include <qpushbutton.h>
|
---|
17 | #include <qtooltip.h>
|
---|
18 |
|
---|
19 | #include "psitabbar.h"
|
---|
20 | #include "psitabwidget.h"
|
---|
21 |
|
---|
22 | KTabBar::KTabBar( QWidget *parent, const char *name )
|
---|
23 | : QTabBar( parent, name ), mReorderStartTab( -1 ), mReorderPreviousTab( -1 ),
|
---|
24 | mHoverCloseButtonTab( 0 ), mDragSwitchTab( 0 ), mHoverCloseButton( 0 ),
|
---|
25 | mHoverCloseButtonEnabled( false ), mHoverCloseButtonDelayed( true ),
|
---|
26 | mTabReorderingEnabled( false ), mTabCloseActivatePrevious( false )
|
---|
27 | {
|
---|
28 | setAcceptDrops( true );
|
---|
29 | setMouseTracking( true );
|
---|
30 |
|
---|
31 | mEnableCloseButtonTimer = new QTimer( this );
|
---|
32 | connect( mEnableCloseButtonTimer, SIGNAL( timeout() ), SLOT( enableCloseButton() ) );
|
---|
33 |
|
---|
34 | mActivateDragSwitchTabTimer = new QTimer( this );
|
---|
35 | connect( mActivateDragSwitchTabTimer, SIGNAL( timeout() ), SLOT( activateDragSwitchTab() ) );
|
---|
36 |
|
---|
37 | connect(this, SIGNAL(layoutChanged()), SLOT(onLayoutChange()));
|
---|
38 | dndEventDelay=5;
|
---|
39 | }
|
---|
40 |
|
---|
41 | KTabBar::~KTabBar()
|
---|
42 | {
|
---|
43 | //For the future
|
---|
44 | //delete d;
|
---|
45 | }
|
---|
46 |
|
---|
47 | void KTabBar::setCloseIcon(const QIconSet& icon)
|
---|
48 | {
|
---|
49 | closeIcon=icon;
|
---|
50 | }
|
---|
51 |
|
---|
52 | void KTabBar::setTabEnabled( int id, bool enabled )
|
---|
53 | {
|
---|
54 | QTab * t = tab( id );
|
---|
55 | if ( t ) {
|
---|
56 | if ( t->isEnabled() != enabled ) {
|
---|
57 | t->setEnabled( enabled );
|
---|
58 | QRect r( t->rect() );
|
---|
59 | if ( !enabled && id == currentTab() && count()>1 ) {
|
---|
60 | QPtrList<QTab> *tablist = tabList();
|
---|
61 | if ( mTabCloseActivatePrevious )
|
---|
62 | t = tablist->at( count()-2 );
|
---|
63 | else {
|
---|
64 | int index = indexOf( id );
|
---|
65 | index += ( index+1 == count() ) ? -1 : 1;
|
---|
66 | t = tabAt( index );
|
---|
67 | }
|
---|
68 |
|
---|
69 | if ( t->isEnabled() ) {
|
---|
70 | r = r.unite( t->rect() );
|
---|
71 | tablist->append( tablist->take( tablist->findRef( t ) ) );
|
---|
72 | emit selected( t->identifier() );
|
---|
73 | }
|
---|
74 | }
|
---|
75 | repaint( r );
|
---|
76 | }
|
---|
77 | }
|
---|
78 | }
|
---|
79 |
|
---|
80 | void KTabBar::mouseDoubleClickEvent( QMouseEvent *e )
|
---|
81 | {
|
---|
82 | if( e->button() != LeftButton )
|
---|
83 | return;
|
---|
84 |
|
---|
85 | QTab *tab = selectTab( e->pos() );
|
---|
86 | if( tab ) {
|
---|
87 | emit( mouseDoubleClick( indexOf( tab->identifier() ) ) );
|
---|
88 | return;
|
---|
89 | }
|
---|
90 | QTabBar::mouseDoubleClickEvent( e );
|
---|
91 | }
|
---|
92 |
|
---|
93 | void KTabBar::mousePressEvent( QMouseEvent *e )
|
---|
94 | {
|
---|
95 | if( e->button() == LeftButton ) {
|
---|
96 | mEnableCloseButtonTimer->stop();
|
---|
97 | mDragStart = e->pos();
|
---|
98 | }
|
---|
99 | else if( e->button() == RightButton ) {
|
---|
100 | QTab *tab = selectTab( e->pos() );
|
---|
101 | if( tab ) {
|
---|
102 | emit( contextMenu( indexOf( tab->identifier() ), mapToGlobal( e->pos() ) ) );
|
---|
103 | return;
|
---|
104 | }
|
---|
105 | }
|
---|
106 | QTabBar::mousePressEvent( e );
|
---|
107 | }
|
---|
108 |
|
---|
109 | void KTabBar::mouseMoveEvent( QMouseEvent *e )
|
---|
110 | {
|
---|
111 | if ( e->state() == LeftButton ) {
|
---|
112 | QTab *tab = selectTab( e->pos() );
|
---|
113 | if ( mDragSwitchTab && tab != mDragSwitchTab ) {
|
---|
114 | mActivateDragSwitchTabTimer->stop();
|
---|
115 | mDragSwitchTab = 0;
|
---|
116 | }
|
---|
117 |
|
---|
118 | QPoint newPos = e->pos();
|
---|
119 | if( newPos.x() > mDragStart.x()+dndEventDelay || newPos.x() < mDragStart.x()-dndEventDelay ||
|
---|
120 | newPos.y() > mDragStart.y()+dndEventDelay || newPos.y() < mDragStart.y()-dndEventDelay )
|
---|
121 | {
|
---|
122 | if( tab ) {
|
---|
123 | emit( initiateDrag( indexOf( tab->identifier() ) ) );
|
---|
124 | return;
|
---|
125 | }
|
---|
126 | }
|
---|
127 | }
|
---|
128 | else if ( e->state() == MidButton ) {
|
---|
129 | if (mReorderStartTab==-1) {
|
---|
130 | QPoint newPos = e->pos();
|
---|
131 | if( newPos.x() > mDragStart.x()+dndEventDelay || newPos.x() < mDragStart.x()-dndEventDelay ||
|
---|
132 | newPos.y() > mDragStart.y()+dndEventDelay || newPos.y() < mDragStart.y()-dndEventDelay )
|
---|
133 | {
|
---|
134 | QTab *tab = selectTab( e->pos() );
|
---|
135 | if( tab && mTabReorderingEnabled ) {
|
---|
136 | mReorderStartTab = indexOf( tab->identifier() );
|
---|
137 | grabMouse( sizeAllCursor );
|
---|
138 | return;
|
---|
139 | }
|
---|
140 | }
|
---|
141 | }
|
---|
142 | else {
|
---|
143 | QTab *tab = selectTab( e->pos() );
|
---|
144 | if( tab ) {
|
---|
145 | int reorderStopTab = indexOf( tab->identifier() );
|
---|
146 | if ( mReorderStartTab!=reorderStopTab && mReorderPreviousTab!=reorderStopTab ) {
|
---|
147 | emit( moveTab( mReorderStartTab, reorderStopTab ) );
|
---|
148 | mReorderPreviousTab=mReorderStartTab;
|
---|
149 | mReorderStartTab=reorderStopTab;
|
---|
150 | return;
|
---|
151 | }
|
---|
152 | }
|
---|
153 | }
|
---|
154 | }
|
---|
155 |
|
---|
156 | if ( mHoverCloseButtonEnabled && mReorderStartTab==-1) {
|
---|
157 | QTab *t = selectTab( e->pos() );
|
---|
158 | if( t && t->iconSet() && t->isEnabled() ) {
|
---|
159 | QPixmap pixmap = t->iconSet()->pixmap( QIconSet::Small, QIconSet::Normal );
|
---|
160 | #ifndef Q_WS_MAC
|
---|
161 | QRect rect( 0, 0, pixmap.width() + 4, pixmap.height() +4);
|
---|
162 | #else
|
---|
163 | QRect rect( 0, 0, pixmap.width(), pixmap.height());
|
---|
164 | #endif
|
---|
165 | int xoff = 0, yoff = 0;
|
---|
166 | // The additional offsets were found by try and error, TODO: find the rational behind them
|
---|
167 | if ( t == tab( currentTab() ) ) {
|
---|
168 | xoff = style().pixelMetric( QStyle::PM_TabBarTabShiftHorizontal, this ) + 3;
|
---|
169 | yoff = style().pixelMetric( QStyle::PM_TabBarTabShiftVertical, this ) - 4;
|
---|
170 | }
|
---|
171 | else {
|
---|
172 | xoff = 7;
|
---|
173 | yoff = 0;
|
---|
174 | }
|
---|
175 | #ifdef Q_WS_MAC
|
---|
176 | yoff=0; //kev hacks for OSX
|
---|
177 | xoff=7; //also kev
|
---|
178 | #endif
|
---|
179 | rect.moveLeft( t->rect().left() + 2 + xoff );
|
---|
180 | rect.moveTop( t->rect().center().y()-pixmap.height()/2 + yoff );
|
---|
181 | if ( rect.contains( e->pos() ) ) {
|
---|
182 | if ( mHoverCloseButton ) {
|
---|
183 | if ( mHoverCloseButtonTab == t )
|
---|
184 | return;
|
---|
185 | mEnableCloseButtonTimer->stop();
|
---|
186 | delete mHoverCloseButton;
|
---|
187 | }
|
---|
188 |
|
---|
189 | //This is the code that shows the close button.
|
---|
190 | // The problems with MAC, 'fix'ed above appear here
|
---|
191 | mHoverCloseButton = new QPushButton( this );
|
---|
192 | mHoverCloseButton->setIconSet( closeIcon);
|
---|
193 | mHoverCloseButton->setGeometry( rect );
|
---|
194 | QToolTip::add(mHoverCloseButton,tr("Close this tab"));
|
---|
195 | mHoverCloseButton->setFlat(true);
|
---|
196 | mHoverCloseButton->show();
|
---|
197 | if ( mHoverCloseButtonDelayed ) {
|
---|
198 | mHoverCloseButton->setEnabled(false);
|
---|
199 | mEnableCloseButtonTimer->start( QApplication::doubleClickInterval(), true );
|
---|
200 | }
|
---|
201 | mHoverCloseButtonTab = t;
|
---|
202 | connect( mHoverCloseButton, SIGNAL( clicked() ), SLOT( closeButtonClicked() ) );
|
---|
203 | return;
|
---|
204 | }
|
---|
205 | }
|
---|
206 | if ( mHoverCloseButton ) {
|
---|
207 | mEnableCloseButtonTimer->stop();
|
---|
208 | delete mHoverCloseButton;
|
---|
209 | mHoverCloseButton = 0;
|
---|
210 | }
|
---|
211 | }
|
---|
212 |
|
---|
213 | QTabBar::mouseMoveEvent( e );
|
---|
214 | }
|
---|
215 |
|
---|
216 | void KTabBar::enableCloseButton()
|
---|
217 | {
|
---|
218 | mHoverCloseButton->setEnabled(true);
|
---|
219 | }
|
---|
220 |
|
---|
221 | void KTabBar::activateDragSwitchTab()
|
---|
222 | {
|
---|
223 | QTab *tab = selectTab( mapFromGlobal( QCursor::pos() ) );
|
---|
224 | if ( tab && mDragSwitchTab == tab )
|
---|
225 | setCurrentTab( mDragSwitchTab );
|
---|
226 | mDragSwitchTab = 0;
|
---|
227 | }
|
---|
228 |
|
---|
229 | void KTabBar::mouseReleaseEvent( QMouseEvent *e )
|
---|
230 | {
|
---|
231 | if( e->button() == MidButton ) {
|
---|
232 | if ( mReorderStartTab==-1 ) {
|
---|
233 | QTab *tab = selectTab( e->pos() );
|
---|
234 | if( tab ) {
|
---|
235 | emit( mouseMiddleClick( indexOf( tab->identifier() ) ) );
|
---|
236 | return;
|
---|
237 | }
|
---|
238 | }
|
---|
239 | else {
|
---|
240 | releaseMouse();
|
---|
241 | setCursor( arrowCursor );
|
---|
242 | mReorderStartTab=-1;
|
---|
243 | mReorderPreviousTab=-1;
|
---|
244 | }
|
---|
245 | }
|
---|
246 | QTabBar::mouseReleaseEvent( e );
|
---|
247 | }
|
---|
248 |
|
---|
249 | void KTabBar::dragMoveEvent( QDragMoveEvent *e )
|
---|
250 | {
|
---|
251 | QTab *tab = selectTab( e->pos() );
|
---|
252 | if( tab ) {
|
---|
253 | bool accept = false;
|
---|
254 | // The receivers of the testCanDecode() signal has to adjust
|
---|
255 | // 'accept' accordingly.
|
---|
256 | emit testCanDecode( e, accept);
|
---|
257 | if ( accept && tab != QTabBar::tab( currentTab() ) ) {
|
---|
258 | mDragSwitchTab = tab;
|
---|
259 | mActivateDragSwitchTabTimer->start( QApplication::doubleClickInterval()*2, true );
|
---|
260 | }
|
---|
261 | e->accept( accept );
|
---|
262 | return;
|
---|
263 | }
|
---|
264 | e->accept( false );
|
---|
265 | QTabBar::dragMoveEvent( e );
|
---|
266 | }
|
---|
267 |
|
---|
268 | void KTabBar::dropEvent( QDropEvent *e )
|
---|
269 | {
|
---|
270 | QTab *tab = selectTab( e->pos() );
|
---|
271 | if( tab ) {
|
---|
272 | mActivateDragSwitchTabTimer->stop();
|
---|
273 | mDragSwitchTab = 0;
|
---|
274 | emit( receivedDropEvent( indexOf( tab->identifier() ) , e ) );
|
---|
275 | return;
|
---|
276 | }
|
---|
277 | QTabBar::dropEvent( e );
|
---|
278 | }
|
---|
279 |
|
---|
280 | #ifndef QT_NO_WHEELEVENT
|
---|
281 | void KTabBar::wheelEvent( QWheelEvent *e )
|
---|
282 | {
|
---|
283 | if ( e->orientation() == Horizontal )
|
---|
284 | return;
|
---|
285 |
|
---|
286 | emit( wheelDelta( e->delta() ) );
|
---|
287 | }
|
---|
288 | #endif
|
---|
289 |
|
---|
290 | void KTabBar::setTabColor( int id, const QColor& color )
|
---|
291 | {
|
---|
292 | QTab *t = tab( id );
|
---|
293 | if ( t ) {
|
---|
294 | mTabColors.insert( id, color );
|
---|
295 | repaint( t->rect(), false );
|
---|
296 | }
|
---|
297 | }
|
---|
298 |
|
---|
299 | const QColor &KTabBar::tabColor( int id ) const
|
---|
300 | {
|
---|
301 | if ( mTabColors.contains( id ) )
|
---|
302 | return mTabColors[id];
|
---|
303 |
|
---|
304 | return colorGroup().foreground();
|
---|
305 | }
|
---|
306 |
|
---|
307 | int KTabBar::insertTab( QTab *t, int index )
|
---|
308 | {
|
---|
309 | int res = QTabBar::insertTab( t, index );
|
---|
310 |
|
---|
311 | if ( mTabCloseActivatePrevious && count() > 2 ) {
|
---|
312 | QPtrList<QTab> *tablist = tabList();
|
---|
313 | tablist->insert( count()-2, tablist->take( tablist->findRef( t ) ) );
|
---|
314 | }
|
---|
315 |
|
---|
316 | return res;
|
---|
317 | }
|
---|
318 |
|
---|
319 | void KTabBar::removeTab( QTab *t )
|
---|
320 | {
|
---|
321 | mTabColors.remove( t->identifier() );
|
---|
322 | QTabBar::removeTab( t );
|
---|
323 | }
|
---|
324 |
|
---|
325 | void KTabBar::paintLabel( QPainter *p, const QRect& br,
|
---|
326 | QTab *t, bool has_focus ) const
|
---|
327 | {
|
---|
328 | QRect r = br;
|
---|
329 | bool selected = currentTab() == t->identifier();
|
---|
330 | if ( t->iconSet() ) {
|
---|
331 | // the tab has an iconset, draw it in the right mode
|
---|
332 | QIconSet::Mode mode = ( t->isEnabled() && isEnabled() )
|
---|
333 | ? QIconSet::Normal : QIconSet::Disabled;
|
---|
334 | if ( mode == QIconSet::Normal && has_focus )
|
---|
335 | mode = QIconSet::Active;
|
---|
336 | QPixmap pixmap = t->iconSet()->pixmap( QIconSet::Small, mode );
|
---|
337 | int pixw = pixmap.width();
|
---|
338 | int pixh = pixmap.height();
|
---|
339 | r.setLeft( r.left() + pixw + 4 );
|
---|
340 | r.setRight( r.right() + 2 );
|
---|
341 |
|
---|
342 | int inactiveXShift = style().pixelMetric( QStyle::PM_TabBarTabShiftHorizontal, this );
|
---|
343 | int inactiveYShift = style().pixelMetric( QStyle::PM_TabBarTabShiftVertical, this );
|
---|
344 |
|
---|
345 | int right = t->text().isEmpty() ? br.right() - pixw : br.left() + 2;
|
---|
346 |
|
---|
347 | p->drawPixmap( right + (selected ? 0 : inactiveXShift),
|
---|
348 | br.center().y() - pixh / 2 + (selected ? 0 : inactiveYShift),
|
---|
349 | pixmap );
|
---|
350 | }
|
---|
351 |
|
---|
352 | QStyle::SFlags flags = QStyle::Style_Default;
|
---|
353 |
|
---|
354 | if ( isEnabled() && t->isEnabled() )
|
---|
355 | flags |= QStyle::Style_Enabled;
|
---|
356 | if ( has_focus )
|
---|
357 | {
|
---|
358 | flags |= QStyle::Style_HasFocus;
|
---|
359 | }
|
---|
360 |
|
---|
361 | QColorGroup cg( colorGroup() );
|
---|
362 | if ( mTabColors.contains( t->identifier() ) )
|
---|
363 | cg.setColor( QColorGroup::Foreground, mTabColors[t->identifier()] );
|
---|
364 |
|
---|
365 | style().drawControl( QStyle::CE_TabBarLabel, p, this, r,
|
---|
366 | t->isEnabled() ? cg : palette().disabled(),
|
---|
367 | flags, QStyleOption(t) );
|
---|
368 | }
|
---|
369 |
|
---|
370 | bool KTabBar::isTabReorderingEnabled() const
|
---|
371 | {
|
---|
372 | return mTabReorderingEnabled;
|
---|
373 | }
|
---|
374 |
|
---|
375 | void KTabBar::setTabReorderingEnabled( bool on )
|
---|
376 | {
|
---|
377 | mTabReorderingEnabled = on;
|
---|
378 | }
|
---|
379 |
|
---|
380 | bool KTabBar::tabCloseActivatePrevious() const
|
---|
381 | {
|
---|
382 | return mTabCloseActivatePrevious;
|
---|
383 | }
|
---|
384 |
|
---|
385 | void KTabBar::setTabCloseActivatePrevious( bool on )
|
---|
386 | {
|
---|
387 | mTabCloseActivatePrevious = on;
|
---|
388 | }
|
---|
389 |
|
---|
390 | void KTabBar::closeButtonClicked()
|
---|
391 | {
|
---|
392 | emit closeRequest( indexOf( mHoverCloseButtonTab->identifier() ) );
|
---|
393 | }
|
---|
394 |
|
---|
395 | void KTabBar::setHoverCloseButton( bool button )
|
---|
396 | {
|
---|
397 | mHoverCloseButtonEnabled = button;
|
---|
398 | if ( !button )
|
---|
399 | onLayoutChange();
|
---|
400 | }
|
---|
401 |
|
---|
402 | bool KTabBar::hoverCloseButton() const
|
---|
403 | {
|
---|
404 | return mHoverCloseButtonEnabled;
|
---|
405 | }
|
---|
406 |
|
---|
407 | void KTabBar::setHoverCloseButtonDelayed( bool delayed )
|
---|
408 | {
|
---|
409 | mHoverCloseButtonDelayed = delayed;
|
---|
410 | }
|
---|
411 |
|
---|
412 | bool KTabBar::hoverCloseButtonDelayed() const
|
---|
413 | {
|
---|
414 | return mHoverCloseButtonDelayed;
|
---|
415 | }
|
---|
416 |
|
---|
417 | void KTabBar::onLayoutChange()
|
---|
418 | {
|
---|
419 | mEnableCloseButtonTimer->stop();
|
---|
420 | delete mHoverCloseButton;
|
---|
421 | mHoverCloseButton = 0;
|
---|
422 | mHoverCloseButtonTab = 0;
|
---|
423 | mActivateDragSwitchTabTimer->stop();
|
---|
424 | mDragSwitchTab = 0;
|
---|
425 | }
|
---|
426 |
|
---|