kwin Library API Documentation

redmond.cpp

00001 /* 00002 * 00003 * Redmond KWin client 00004 * 00005 * Copyright 2001 00006 * Karol Szwed <gallium@kde.org> 00007 * http://gallium.n3.net/ 00008 * 00009 * Based on the default KWin client. 00010 * 00011 * Updated to support toolwindows 3/2001 (KS) 00012 * 00013 */ 00014 00015 #include "redmond.h" 00016 00017 #include <qlayout.h> 00018 #include <qdrawutil.h> 00019 #include <qdatetime.h> 00020 #include <kpixmapeffect.h> 00021 #include <kimageeffect.h> 00022 #include <kdrawutil.h> 00023 #include <klocale.h> 00024 00025 #include <qbitmap.h> 00026 #include <qtooltip.h> 00027 #include <qimage.h> 00028 #include <qlabel.h> 00029 #include <qapplication.h> 00030 00031 namespace Redmond { 00032 00033 static const char *kdelogo[] = { 00034 /* columns rows colors chars-per-pixel */ 00035 "16 16 8 1", 00036 " c None", 00037 ". c #000000", 00038 "+ c #A0A0A4", 00039 "@ c #FFFFFF", 00040 "# c #585858", 00041 "$ c #C0C0C0", 00042 "% c #808080", 00043 "& c #DCDCDC", 00044 " ", 00045 " .. .. ", 00046 " .+@. .@#. ", 00047 " .@@@. .@@@# ", 00048 " .@@@..$@@$. ", 00049 " .@@@.@@@$. ", 00050 " .@@@%@@$. ", 00051 " .@@@&@@. ", 00052 " .@@@@@@. ", 00053 " .@@@$@@&. ", 00054 " .@@@.@@@. ", 00055 " .@@@.+@@@. ", 00056 " .@@@..$@@&. ", 00057 " .@@%. .@@@. ", 00058 " .... ... ", 00059 " "}; 00060 00061 static unsigned char iconify_bits[] = { 00062 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 00063 0x00, 0x00, 0x7e, 0x00, 0x7e, 0x00, 0x00, 0x00}; 00064 00065 static unsigned char close_bits[] = { 00066 0x00, 0x00, 0x86, 0x01, 0xcc, 0x00, 0x78, 0x00, 0x30, 0x00, 0x78, 0x00, 00067 0xcc, 0x00, 0x86, 0x01, 0x00, 0x00, 0x00, 0x00}; 00068 00069 static unsigned char maximize_bits[] = { 00070 0xff, 0x01, 0xff, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 00071 0x01, 0x01, 0x01, 0x01, 0xff, 0x01, 0x00, 0x00}; 00072 00073 static unsigned char minmax_bits[] = { 00074 0xfc, 0x00, 0xfc, 0x00, 0x84, 0x00, 0xbf, 0x00, 0xbf, 0x00, 0xe1, 0x00, 00075 0x21, 0x00, 0x21, 0x00, 0x3f, 0x00, 0x00, 0x00}; 00076 00077 static unsigned char question_bits[] = { 00078 0x00, 0x00, 0x3c, 0x00, 0x66, 0x00, 0x60, 0x00, 0x30, 0x00, 0x18, 0x00, 00079 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0x00, 0x00}; 00080 00081 00082 // Up / Down titlebar button images 00083 static KPixmap *btnPix1; 00084 static KPixmap *iBtnPix1; 00085 static KPixmap *btnDownPix1; 00086 static KPixmap *iBtnDownPix1; 00087 00088 static KPixmap *miniBtnPix1; 00089 static KPixmap *iMiniBtnPix1; 00090 static KPixmap *miniBtnDownPix1; 00091 static KPixmap *iMiniBtnDownPix1; 00092 00093 static QPixmap *defaultMenuPix; 00094 static QColor *btnForeground; 00095 static bool pixmaps_created = false; 00096 00097 static int toolTitleHeight; 00098 static int normalTitleHeight; 00099 static int borderWidth; 00100 00101 static inline const KDecorationOptions *options() 00102 { 00103 return KDecoration::options(); 00104 } 00105 00106 static void drawButtonFrame( KPixmap *pix, const QColorGroup &g, bool sunken ) 00107 { 00108 QPainter p; 00109 int x2 = pix->width() - 1; 00110 int y2 = pix->height() - 1; 00111 p.begin(pix); 00112 00113 // titlebar button frame 00114 p.setPen( sunken ? g.dark().dark(155) : g.light()); 00115 p.drawLine(0, 0, x2-1, 0); 00116 p.drawLine(0, 0, 0, y2-1); 00117 00118 if (sunken) 00119 { 00120 p.setPen( g.mid().dark(135) ); 00121 p.drawLine(1, 1, x2-2, 1); 00122 p.drawLine(1, 1, 1, y2-2); 00123 } 00124 00125 p.setPen( sunken ? g.light() : g.mid().dark(135)); 00126 p.drawLine(1, y2-1, x2-1, y2-1); 00127 p.drawLine(x2-1, 1, x2-1, y2-1); 00128 00129 p.setPen( sunken ? g.light() : g.dark().dark(155)); 00130 p.drawLine(0, y2, x2, y2); 00131 p.drawLine(x2, 0, x2, y2); 00132 } 00133 00134 00135 static void create_pixmaps () 00136 { 00137 if (pixmaps_created) 00138 return; 00139 00140 pixmaps_created = true; 00141 00142 bool highcolor = QPixmap::defaultDepth() > 8; 00143 00144 btnPix1 = new KPixmap; 00145 btnDownPix1 = new KPixmap; 00146 iBtnPix1 = new KPixmap; 00147 iBtnDownPix1 = new KPixmap; 00148 miniBtnPix1 = new KPixmap; 00149 miniBtnDownPix1 = new KPixmap; 00150 iMiniBtnPix1 = new KPixmap; 00151 iMiniBtnDownPix1 = new KPixmap; 00152 defaultMenuPix = new QPixmap(kdelogo); 00153 00154 // buttons (active/inactive, sunken/unsunken) 00155 QColorGroup g = options()->colorGroup(KDecoration::ColorButtonBg, true); 00156 QColor c = g.background(); 00157 btnPix1->resize(normalTitleHeight, normalTitleHeight-2); 00158 btnDownPix1->resize(normalTitleHeight, normalTitleHeight-2); 00159 iBtnPix1->resize(normalTitleHeight, normalTitleHeight-2); 00160 iBtnDownPix1->resize(normalTitleHeight, normalTitleHeight-2); 00161 00162 miniBtnPix1->resize(toolTitleHeight, toolTitleHeight); 00163 miniBtnDownPix1->resize(toolTitleHeight, toolTitleHeight); 00164 iMiniBtnPix1->resize(toolTitleHeight, toolTitleHeight); 00165 iMiniBtnDownPix1->resize(toolTitleHeight, toolTitleHeight); 00166 00167 if (highcolor && false) { 00168 KPixmapEffect::gradient(*btnPix1, c.light(130), c.dark(130), 00169 KPixmapEffect::VerticalGradient); 00170 KPixmapEffect::gradient(*btnDownPix1, c.dark(130), c.light(130), 00171 KPixmapEffect::VerticalGradient); 00172 00173 KPixmapEffect::gradient(*miniBtnPix1, c.light(130), c.dark(130), 00174 KPixmapEffect::VerticalGradient); 00175 KPixmapEffect::gradient(*miniBtnDownPix1, c.dark(130), c.light(130), 00176 KPixmapEffect::VerticalGradient); 00177 00178 g = options()->colorGroup(KDecoration::ColorButtonBg, false); 00179 c = g.background(); 00180 KPixmapEffect::gradient(*iBtnPix1, c.light(130), c.dark(130), 00181 KPixmapEffect::VerticalGradient); 00182 KPixmapEffect::gradient(*iBtnDownPix1, c.dark(130), c.light(130), 00183 KPixmapEffect::VerticalGradient); 00184 KPixmapEffect::gradient(*iMiniBtnPix1, c.light(130), c.dark(130), 00185 KPixmapEffect::VerticalGradient); 00186 KPixmapEffect::gradient(*iMiniBtnDownPix1, c.dark(130), c.light(130), 00187 KPixmapEffect::VerticalGradient); 00188 } else { 00189 btnPix1->fill(c.rgb()); 00190 btnDownPix1->fill(c.rgb()); 00191 miniBtnPix1->fill(c.rgb()); 00192 miniBtnDownPix1->fill(c.rgb()); 00193 00194 g = options()->colorGroup(KDecoration::ColorButtonBg, false); 00195 c = g.background(); 00196 iBtnPix1->fill(c.rgb()); 00197 iBtnDownPix1->fill(c.rgb()); 00198 iMiniBtnPix1->fill(c.rgb()); 00199 iMiniBtnDownPix1->fill(c.rgb()); 00200 } 00201 00202 g = options()->colorGroup(KDecoration::ColorButtonBg, true); 00203 drawButtonFrame(btnPix1, g, false); 00204 drawButtonFrame(btnDownPix1, g, true); 00205 drawButtonFrame(miniBtnPix1, g, false); 00206 drawButtonFrame(miniBtnDownPix1, g, true); 00207 00208 g = options()->colorGroup(KDecoration::ColorButtonBg, false); 00209 drawButtonFrame(iBtnPix1, g, false); 00210 drawButtonFrame(iBtnDownPix1, g, true); 00211 drawButtonFrame(iMiniBtnPix1, g, false); 00212 drawButtonFrame(iMiniBtnDownPix1, g, true); 00213 00214 // Make sure button pixmaps contrast with the current colour scheme. 00215 if (qGray(options()->color(KDecoration::ColorButtonBg, true).rgb()) > 127) 00216 btnForeground = new QColor(Qt::black); 00217 else 00218 btnForeground = new QColor(Qt::white); 00219 } 00220 00221 void delete_pixmaps() 00222 { 00223 delete btnPix1; 00224 delete btnDownPix1; 00225 delete iBtnPix1; 00226 delete iBtnDownPix1; 00227 delete miniBtnPix1; 00228 delete miniBtnDownPix1; 00229 delete iMiniBtnPix1; 00230 delete iMiniBtnDownPix1; 00231 delete defaultMenuPix; 00232 delete btnForeground; 00233 pixmaps_created = false; 00234 } 00235 00236 00237 RedmondButton::RedmondButton(RedmondDeco *parent, const char *name, 00238 const unsigned char *bitmap, bool menuButton, bool isMini, int size, const QString& tip, const int realizeBtns) 00239 : QButton(parent->widget(), name), 00240 last_button( NoButton ) 00241 { 00242 // Eliminate background flicker 00243 setBackgroundMode( NoBackground ); 00244 setCursor( arrowCursor ); 00245 00246 menuBtn = menuButton; 00247 miniBtn = isMini; 00248 client = parent; 00249 this->size = size; 00250 realizeButtons = realizeBtns; 00251 00252 // Use larger button for the menu, or mini-buttons for toolwindows. 00253 if ( isMini || menuButton ) { 00254 setFixedSize(size, size); 00255 resize(size, size); 00256 } else { 00257 setFixedSize(size, size-2); 00258 resize(size, size-2); 00259 } 00260 00261 if ( bitmap ) { 00262 setBitmap(bitmap); 00263 } 00264 00265 QToolTip::add(this, tip); 00266 } 00267 00268 00269 QSize RedmondButton::sizeHint() const 00270 { 00271 if ( miniBtn || menuBtn ) 00272 return( QSize(size, size) ); 00273 else 00274 return( QSize(size, size-2) ); 00275 } 00276 00277 00278 void RedmondButton::reset() 00279 { 00280 repaint(false); 00281 } 00282 00283 00284 void RedmondButton::setBitmap(const unsigned char *bitmap) 00285 { 00286 pix.resize(0, 0); 00287 deco = QBitmap(10, 10, bitmap, true); 00288 deco.setMask(deco); 00289 repaint( false ); 00290 } 00291 00292 00293 void RedmondButton::setPixmap( const QPixmap &p ) 00294 { 00295 deco.resize(0, 0); 00296 pix = p; 00297 00298 if (miniBtn || menuBtn) 00299 setMask(QRect(0, 0, size, size)); 00300 else 00301 setMask(QRect(0, 0, size, size-2)); 00302 00303 repaint(false); 00304 } 00305 00306 00307 void RedmondButton::mousePressEvent( QMouseEvent* e ) 00308 { 00309 last_button = e->button(); 00310 QMouseEvent me(e->type(), e->pos(), e->globalPos(), 00311 (e->button()&realizeButtons)?LeftButton:NoButton, e->state()); 00312 QButton::mousePressEvent( &me ); 00313 } 00314 00315 00316 void RedmondButton::mouseReleaseEvent( QMouseEvent* e ) 00317 { 00318 last_button = e->button(); 00319 QMouseEvent me ( e->type(), e->pos(), e->globalPos(), 00320 (e->button()&realizeButtons)?LeftButton:NoButton, e->state() ); 00321 QButton::mouseReleaseEvent( &me ); 00322 } 00323 00324 00325 void RedmondButton::drawButton(QPainter *p) 00326 { 00327 if ( pix.isNull() ) { 00328 if ( client->isActive() ) { 00329 if ( isDown() ) 00330 p->drawPixmap(0, 0, miniBtn ? *miniBtnDownPix1 : *btnDownPix1); 00331 else 00332 p->drawPixmap(0, 0, miniBtn ? *miniBtnPix1 : *btnPix1); 00333 } else { 00334 if ( isDown() ) 00335 p->drawPixmap(0, 0, miniBtn ? *iMiniBtnDownPix1 : *iBtnDownPix1); 00336 else 00337 p->drawPixmap(0, 0, miniBtn ? *iMiniBtnPix1 : *iBtnPix1); 00338 } 00339 00340 p->setPen( *btnForeground ); 00341 int xOff = (width()-10)/2; 00342 int yOff = (height()-10)/2; 00343 p->drawPixmap(isDown() ? xOff+1: xOff, isDown() ? yOff+1 : yOff, deco); 00344 } else { 00345 p->fillRect(0, 0, width(), height(), 00346 options()->color(KDecoration::ColorTitleBar, client->isActive())); 00347 00348 if ( menuBtn && size < 16) { 00349 QPixmap tmpPix; 00350 00351 // Smooth scale the menu button pixmap 00352 tmpPix.convertFromImage( 00353 pix.convertToImage().smoothScale(size, size)); 00354 00355 p->drawPixmap( 0, 0, tmpPix ); 00356 } else { 00357 int xOff = (width() -pix.width() )/2; 00358 int yOff = (height()-pix.height())/2; 00359 p->drawPixmap(xOff, yOff, pix ); 00360 } 00361 } 00362 } 00363 00364 00365 RedmondDeco::RedmondDeco(KDecorationBridge *b, KDecorationFactory *f) 00366 : KDecoration(b, f) 00367 { 00368 } 00369 00370 void RedmondDeco::init() 00371 { 00372 createMainWidget(WResizeNoErase); 00373 widget()->installEventFilter(this); 00374 00375 widget()->setBackgroundMode(NoBackground); 00376 // bool reverse = QApplication::reverseLayout(); 00377 00378 // Finally, toolwindows look small 00379 // if ( isTool() ) { 00380 // titleHeight = toolTitleHeight+2; 00381 // smallButtons = true; 00382 // } else { 00383 titleHeight = normalTitleHeight+2; 00384 smallButtons = false; 00385 // } 00386 00387 lastButtonWidth = 0; 00388 00389 QGridLayout* g = new QGridLayout(widget(), 0, 0, 0); 00390 g->setResizeMode(QLayout::FreeResize); 00391 if (isPreview()) { 00392 g->addWidget(new QLabel(i18n("<center><b>Redmond preview</b></center>"), widget()), 3, 1); 00393 } else { 00394 g->addItem(new QSpacerItem( 0, 0 ), 3, 1); // no widget in the middle 00395 } 00396 00397 g->addRowSpacing(0, borderWidth); // Top grab bar 00398 // without the next line, unshade flickers 00399 g->addItem(new QSpacerItem(0, 0, QSizePolicy::Fixed, QSizePolicy::Expanding)); 00400 g->setRowStretch(3, 10); // Wrapped window 00401 g->addRowSpacing(4, borderWidth); // bottom handles 00402 g->addRowSpacing(2, 1); // Line below title bar 00403 g->addColSpacing(0, borderWidth); 00404 g->addColSpacing(2, borderWidth); 00405 00406 button[BtnMenu] = new RedmondButton(this, "menu", NULL, true, smallButtons, titleHeight-2, i18n("Menu"), LeftButton|RightButton); 00407 button[BtnClose] = new RedmondButton(this, "close", close_bits, false, smallButtons, titleHeight-2, i18n("Close")); 00408 button[BtnMin] = new RedmondButton(this, "iconify", iconify_bits, false, smallButtons, titleHeight-2, i18n("Minimize")); 00409 button[BtnMax] = new RedmondButton(this, "maximize", maximize_bits, false, smallButtons, titleHeight-2, i18n("Maximize"), LeftButton|MidButton|RightButton); 00410 00411 // Connect required stuff together 00412 connect(button[BtnMenu], SIGNAL(pressed()), this, SLOT(menuButtonPressed())); 00413 connect(button[BtnClose], SIGNAL(clicked()), this, SLOT(closeWindow())); 00414 connect(button[BtnMin], SIGNAL(clicked()), this, SLOT(minimize())); 00415 connect(button[BtnMax], SIGNAL(clicked()), this, SLOT(slotMaximize())); 00416 00417 // Pack the titleBar hbox with items 00418 hb = new QBoxLayout(0, QBoxLayout::LeftToRight, 0, 0, 0); 00419 hb->setResizeMode(QLayout::FreeResize); 00420 hb->addSpacing(2); 00421 hb->addWidget(button[BtnMenu]); 00422 titlebar = new QSpacerItem(10, titleHeight, QSizePolicy::Expanding, QSizePolicy::Minimum); 00423 hb->addItem(titlebar); 00424 hb->addSpacing(borderWidth/2); 00425 00426 if ( providesContextHelp() ) { 00427 button[BtnHelp] = new RedmondButton(this, "help", question_bits, false, smallButtons, titleHeight-2, i18n("Help")); 00428 connect( button[BtnHelp], SIGNAL( clicked() ), this, SLOT( showContextHelp() )); 00429 hb->addWidget( button[BtnHelp] ); 00430 } else { 00431 button[BtnHelp] = NULL; 00432 } 00433 00434 hb->addWidget(button[BtnMin]); 00435 hb->addWidget(button[BtnMax]); 00436 hb->addSpacing(borderWidth/2); 00437 hb->addWidget(button[BtnClose]); 00438 hb->addSpacing(2); 00439 00440 g->addLayout(hb, 1, 1); 00441 00442 // Hide buttons which are not required 00443 // We can un-hide them if required later 00444 if (!isMinimizable()) 00445 button[BtnMin]->hide(); 00446 if (!isMaximizable()) 00447 button[BtnMax]->hide(); 00448 if (!isCloseable()) 00449 button[BtnClose]->hide(); 00450 00451 hiddenItems = false; 00452 00453 // Make sure that the menu button uses the correct mini-icon 00454 iconChange(); 00455 widget()->layout()->activate(); 00456 } 00457 00458 00459 void RedmondDeco::slotReset() 00460 { 00461 // 0 to 3 ( 4 buttons - Help, Max, Iconify, Close ) 00462 for(int i = RedmondDeco::BtnHelp; i <= RedmondDeco::BtnClose; i++) 00463 if (button[i]) 00464 button[i]->reset(); 00465 00466 // The menu is reset by iconChange() 00467 00468 widget()->repaint( false ); 00469 } 00470 00471 00472 void RedmondDeco::iconChange() 00473 { 00474 QPixmap miniIcon = icon().pixmap(QIconSet::Small, QIconSet::Normal); 00475 00476 if (!miniIcon.isNull()) 00477 button[BtnMenu]->setPixmap(miniIcon); 00478 else 00479 button[BtnMenu]->setPixmap(*defaultMenuPix); 00480 00481 if (button[BtnMenu]->isVisible()) 00482 button[BtnMenu]->repaint(false); 00483 } 00484 00485 00486 void RedmondDeco::slotMaximize() 00487 { 00488 if (button[BtnMax]) { 00489 maximize(button[BtnMax]->last_button); 00490 } 00491 } 00492 00493 00494 void RedmondDeco::resizeEvent(QResizeEvent *) 00495 { 00496 calcHiddenButtons(); 00497 /* 00498 if (isVisibleToTLW()) { 00499 update(rect()); 00500 int dx = 0; 00501 int dy = 0; 00502 00503 if ( e->oldSize().width() != width() ) 00504 dx = 32 + QABS( e->oldSize().width() - width() ); 00505 00506 if ( e->oldSize().height() != height() ) 00507 dy = 8 + QABS( e->oldSize().height() - height() ); 00508 00509 if ( dy ) 00510 update( 0, height() - dy + 1, width(), dy ); 00511 00512 if ( dx ) 00513 { 00514 update( width() - dx + 1, 0, dx, height() ); 00515 update( QRect( QPoint(4,4), titlebar->geometry().bottomLeft() - QPoint(1,0) ) ); 00516 update( QRect( titlebar->geometry().topRight(), QPoint( width() - 4, titlebar->geometry().bottom() ) ) ); 00517 // Titlebar needs no paint event 00518 QApplication::postEvent( this, new QPaintEvent( titlebar->geometry(), FALSE ) ); 00519 } 00520 } 00521 */ 00522 } 00523 00524 00525 void RedmondDeco::captionChange( const QString& ) 00526 { 00527 widget()->repaint( titlebar->geometry(), false ); 00528 } 00529 00530 00531 void RedmondDeco::paintEvent( QPaintEvent* ) 00532 { 00533 bool hicolor = QPixmap::defaultDepth() > 8; 00534 int fontoffset = 1; 00535 00536 QPainter p(widget()); 00537 00538 // Obtain widget bounds. 00539 QRect r(widget()->rect()); 00540 int x = r.x(); 00541 int y = r.y(); 00542 int x2 = r.width()-1; 00543 int y2 = r.height()-1; 00544 int w = r.width(); 00545 int h = r.height(); 00546 00547 // Draw part of the frame that is the frame color 00548 // ============================================== 00549 QColorGroup g = options()->colorGroup(KDecoration::ColorFrame, isActive()); 00550 p.setPen( g.background() ); 00551 p.drawLine( x, y, x2-1, y ); 00552 p.drawLine( x, y, x, y2-1 ); 00553 00554 // Draw line under title bar 00555 p.drawLine( x+borderWidth, y+titleHeight+borderWidth, x2-borderWidth, y+titleHeight+borderWidth ); 00556 // Draw a hidden line that appears during shading 00557 p.drawLine( x+borderWidth, y2-borderWidth, x2-borderWidth, y2-borderWidth ); 00558 00559 // Fill out the border edges 00560 for (int i = 1; i < borderWidth; i++) 00561 p.drawRect( x+i, y+i, w-2*i, h-2*i ); 00562 00563 // Draw highlights and lowlights 00564 p.setPen(g.light()); 00565 for (int i = 1; i <= borderWidth/3; i++) { 00566 p.drawLine( x+i, y+i, x2-i-1, y+i); 00567 p.drawLine( x+i, y+i, x+i, y2-i-1); 00568 } 00569 00570 p.setPen(g.mid().dark(135)); 00571 for (int i = 1; i <= borderWidth/3; i++) { 00572 p.drawLine( x2-i, y+i+1, x2-i, y2-i); 00573 p.drawLine( x+i+1, y2-i, x2-i, y2-i); 00574 } 00575 00576 // Draw black edges 00577 p.setPen( g.dark().dark(155) ); 00578 p.drawLine(x2, y, x2, y2); 00579 p.drawLine(x, y2, x2, y2); 00580 00581 // Draw the title bar. 00582 // =================== 00583 r = titlebar->geometry(); 00584 QFontMetrics fm(options()->font(true)); 00585 00586 // Obtain blend colours. 00587 QColor c1 = options()->color(KDecoration::ColorTitleBar, isActive() ); 00588 QColor c2 = options()->color(KDecoration::ColorTitleBlend, isActive() ); 00589 00590 // Paint without a buffer if the colours are the same to 00591 // improve performance, and only draw gradients on hicolor displays. 00592 if ((c1 != c2) && hicolor) { 00593 // KS - Add gradient caching if needed at a later stage. 00594 00595 // Create a disposable pixmap buffer for the title blend 00596 KPixmap* titleBuffer = new KPixmap; 00597 titleBuffer->resize(w-2*borderWidth, titleHeight); 00598 00599 if (titleBuffer->depth() > 16) { 00600 KPixmapEffect::gradient(*titleBuffer, c1, c2, 00601 KPixmapEffect::HorizontalGradient); 00602 } else { 00603 // This enables dithering on 15 and 16bit displays, preventing 00604 // some pretty horrible banding effects 00605 QImage image = KImageEffect::gradient(titleBuffer->size(), c1, c2, 00606 KImageEffect::HorizontalGradient); 00607 00608 titleBuffer->convertFromImage(image, Qt::OrderedDither); 00609 } 00610 00611 QPainter p2( titleBuffer, this ); 00612 00613 // Since drawing the gradient is (relatively) slow, it is best 00614 // to draw the title text on the pixmap. 00615 00616 // Reduce the font size and weight for toolwindows. 00617 QFont fnt = options()->font(true); 00618 if ( smallButtons ) { 00619 fnt.setPointSize( fnt.pointSize() - 2 ); // Shrink font by 2 pt. 00620 fnt.setWeight( QFont::Normal ); 00621 fontoffset = 0; 00622 } 00623 p2.setFont( fnt ); 00624 p2.setPen( options()->color(KDecoration::ColorFont, isActive() )); 00625 p2.drawText( r.x(), fontoffset, r.width()-3, r.height()-1, 00626 AlignLeft | AlignVCenter, caption() ); 00627 p2.end(); 00628 00629 p.drawPixmap( borderWidth, borderWidth, *titleBuffer ); 00630 00631 delete titleBuffer; 00632 00633 } else { 00634 // Assume lower ended hardware, so don't use buffers. 00635 // Don't draw a gradient either. 00636 p.fillRect( borderWidth, borderWidth, w-2*borderWidth, titleHeight, c1 ); 00637 00638 // Draw the title text. 00639 QFont fnt = options()->font(true); 00640 if ( smallButtons ) 00641 { 00642 fnt.setPointSize( fnt.pointSize() - 2 ); // Shrink font by 2 pt. 00643 fnt.setWeight( QFont::Normal ); 00644 fontoffset = 0; 00645 } 00646 p.setFont( fnt ); 00647 p.setPen(options()->color(KDecoration::ColorFont, isActive() )); 00648 p.drawText(r.x()+4, r.y()+fontoffset, r.width()-3, r.height()-1, 00649 AlignLeft | AlignVCenter, caption() ); 00650 } 00651 00652 } 00653 00654 void RedmondDeco::showEvent(QShowEvent *) 00655 { 00656 calcHiddenButtons(); 00657 widget()->show(); 00658 } 00659 00660 00661 void RedmondDeco::mouseDoubleClickEvent( QMouseEvent * e ) 00662 { 00663 if (titlebar->geometry().contains( e->pos() ) ) 00664 titlebarDblClickOperation(); 00665 } 00666 00667 00668 void RedmondDeco::maximizeChange(bool m) 00669 { 00670 button[BtnMax]->setBitmap(m ? minmax_bits : maximize_bits); 00671 } 00672 00673 void RedmondDeco::calcHiddenButtons() 00674 { 00675 // order of hiding is help, maximize, minimize, close, then menu; 00676 int minWidth = (2 + 4 + (providesContextHelp() ? 2 : 1 )) * normalTitleHeight; 00677 00678 if (lastButtonWidth > width()) { // Shrinking 00679 lastButtonWidth = width(); 00680 if (width() < minWidth) { 00681 hiddenItems = true; 00682 00683 for(int i = RedmondDeco::BtnHelp; i <= RedmondDeco::BtnMenu; i++) { 00684 if (button[i]) { 00685 if ( !button[i]->isHidden() ) { 00686 button[i]->hide(); 00687 } 00688 minWidth -= button[i]->sizeHint().width(); 00689 if (width() >= minWidth) { 00690 return; 00691 } 00692 } 00693 } 00694 } 00695 } else { 00696 if ( hiddenItems ) { // Expanding 00697 lastButtonWidth = width(); 00698 int totalSize = normalTitleHeight*3; 00699 00700 for (int i = RedmondDeco::BtnMenu; i >= RedmondDeco::BtnHelp; i--) { 00701 if (button[i]) { 00702 if (button[i]->sizeHint().width() + totalSize <= width()) { 00703 totalSize += button[i]->sizeHint().width(); 00704 button[i]->resize(button[i]->sizeHint()); 00705 button[i]->show(); 00706 } else { 00707 return; 00708 } 00709 } 00710 } 00711 00712 // all items shown now 00713 hiddenItems = false; 00714 } else { 00715 lastButtonWidth = width(); 00716 } 00717 } 00718 } 00719 00720 RedmondDeco::Position RedmondDeco::mousePosition(const QPoint &p) const 00721 { 00722 Position m = PositionCenter; 00723 00724 const int range = 14 + 3*borderWidth/2; 00725 00726 if ( ( p.x() > borderWidth && p.x() < width() - borderWidth ) 00727 && ( p.y() > borderWidth && p.y() < height() - borderWidth ) ) 00728 m = PositionCenter; 00729 else if ( p.y() <= range && p.x() <= range) 00730 m = PositionTopLeft; 00731 else if ( p.y() >= height()-range && p.x() >= width()-range) 00732 m = PositionBottomRight; 00733 else if ( p.y() >= height()-range && p.x() <= range) 00734 m = PositionBottomLeft; 00735 else if ( p.y() <= range && p.x() >= width()-range) 00736 m = PositionTopRight; 00737 else if ( p.y() <= borderWidth ) 00738 m = PositionTop; 00739 else if ( p.y() >= height()-borderWidth ) 00740 m = PositionBottom; 00741 else if ( p.x() <= borderWidth ) 00742 m = PositionLeft; 00743 else if ( p.x() >= width()-borderWidth ) 00744 m = PositionRight; 00745 else 00746 m = PositionCenter; 00747 00748 return m; 00749 } 00750 00751 void RedmondDeco::borders(int &l, int &r, int &t, int &b) const 00752 { 00753 // bool reverse = QApplication::reverseLayout(); 00754 l = borderWidth; 00755 r = borderWidth; 00756 t = borderWidth + titlebar->geometry().height() + 1; 00757 b = borderWidth; 00758 } 00759 00760 void RedmondDeco::resize(const QSize &s) 00761 { 00762 widget()->resize(s); 00763 } 00764 00765 QSize RedmondDeco::minimumSize() const 00766 { 00767 return QSize(50, 50); // what's good for the goose.... 00768 } 00769 00770 void RedmondDeco::activeChange() 00771 { 00772 QPixmap miniIcon = icon().pixmap(QIconSet::Small, QIconSet::Normal); 00773 if (!miniIcon.isNull()) { 00774 button[BtnMenu]->setPixmap(miniIcon); 00775 } else { 00776 button[BtnMenu]->setPixmap(kdelogo); 00777 } 00778 00779 // Reset the menu button ? 00780 for (int i = BtnHelp; i < BtnCount; i++) { 00781 if (button[i]) button[i]->reset(); 00782 } 00783 00784 widget()->repaint(false); 00785 } 00786 00787 void RedmondDeco::captionChange() 00788 { 00789 widget()->repaint(titlebar->geometry(), false); 00790 } 00791 00792 void RedmondDeco::maximizeChange() 00793 { 00794 bool m = (maximizeMode() == MaximizeFull); 00795 button[BtnMax]->setBitmap(m ? minmax_bits : maximize_bits); 00796 QToolTip::remove(button[BtnMax]); 00797 QToolTip::add(button[BtnMax], m ? i18n("Restore") : i18n("Maximize")); 00798 } 00799 00800 void RedmondDeco::desktopChange() 00801 { 00802 } 00803 00804 void RedmondDeco::shadeChange() 00805 { 00806 } 00807 00808 void RedmondDeco::menuButtonPressed() 00809 { 00810 static QTime* t = NULL; 00811 static RedmondDeco* lastClient = NULL; 00812 if (t == NULL) t = new QTime; 00813 bool dbl = ( lastClient == this && t->elapsed() <= QApplication::doubleClickInterval()); 00814 lastClient = this; 00815 t->start(); 00816 if (!dbl) { 00817 QRect menuRect = button[BtnMenu]->rect(); 00818 QPoint menuTop = QPoint(menuRect.topLeft().x()-3, 00819 menuRect.topLeft().y()); 00820 QPoint menuBottom = QPoint(menuRect.bottomRight().x()+3, 00821 menuRect.bottomRight().y()+4); 00822 KDecorationFactory* f = factory(); 00823 showWindowMenu(QRect(button[BtnMenu]->mapToGlobal(menuTop), 00824 button[BtnMenu]->mapToGlobal(menuBottom))); 00825 if( !f->exists( this )) // 'this' was destroyed 00826 return; 00827 button[BtnMenu]->setDown(false); 00828 } else { 00829 closeWindow(); 00830 } 00831 } 00832 00833 bool RedmondDeco::eventFilter(QObject *o, QEvent *e) 00834 { 00835 if (o != widget()) { return false; } 00836 switch (e->type()) { 00837 case QEvent::Resize: { 00838 resizeEvent(static_cast<QResizeEvent *>(e)); 00839 return true; 00840 } 00841 case QEvent::Paint: { 00842 paintEvent(static_cast<QPaintEvent *>(e)); 00843 return true; 00844 } 00845 case QEvent::Show: { 00846 showEvent(static_cast<QShowEvent *>(e)); 00847 return true; 00848 } 00849 case QEvent::MouseButtonDblClick: { 00850 mouseDoubleClickEvent(static_cast<QMouseEvent *>(e)); 00851 return true; 00852 } 00853 case QEvent::MouseButtonPress: { 00854 processMousePressEvent(static_cast<QMouseEvent *>(e)); 00855 return true; 00856 } 00857 default: { 00858 break; 00859 } 00860 } 00861 00862 return false; 00863 } 00864 00865 void RedmondDecoFactory::readConfig() { 00866 normalTitleHeight = QFontMetrics(options()->font(true)).height(); 00867 toolTitleHeight = QFontMetrics(options()->font(true, true)).height(); 00868 switch(options()->preferredBorderSize(this)) { 00869 case BorderLarge: 00870 borderWidth = 8; 00871 if (normalTitleHeight < 20) normalTitleHeight = 20; 00872 if (toolTitleHeight < 20) toolTitleHeight = 20; 00873 break; 00874 case BorderVeryLarge: 00875 borderWidth = 12; 00876 if (normalTitleHeight < 24) normalTitleHeight = 24; 00877 if (toolTitleHeight < 24) toolTitleHeight = 24; 00878 break; 00879 case BorderHuge: 00880 borderWidth = 18; 00881 if (normalTitleHeight < 28) normalTitleHeight = 28; 00882 if (toolTitleHeight < 28) toolTitleHeight = 28; 00883 break; 00884 case BorderVeryHuge: 00885 borderWidth = 27; 00886 if (normalTitleHeight < 33) normalTitleHeight = 33; 00887 if (toolTitleHeight < 33) toolTitleHeight = 33; 00888 break; 00889 case BorderOversized: 00890 borderWidth = 40; 00891 if (normalTitleHeight < 40) normalTitleHeight = 40; 00892 if (toolTitleHeight < 40) toolTitleHeight = 40; 00893 break; 00894 case BorderTiny: 00895 case BorderNormal: 00896 default: 00897 borderWidth = 4; 00898 if (normalTitleHeight < 16) normalTitleHeight = 16; 00899 if (toolTitleHeight < 16) toolTitleHeight = 16; 00900 } 00901 } 00902 00903 RedmondDecoFactory::RedmondDecoFactory() 00904 { 00905 readConfig(); 00906 create_pixmaps(); 00907 } 00908 00909 RedmondDecoFactory::~RedmondDecoFactory() 00910 { 00911 Redmond::delete_pixmaps(); 00912 } 00913 00914 KDecoration *RedmondDecoFactory::createDecoration( KDecorationBridge *b ) 00915 { 00916 return new RedmondDeco(b, this); 00917 } 00918 00919 bool RedmondDecoFactory::reset( unsigned long changed ) 00920 { 00921 if ( changed & ( SettingFont | SettingBorder | SettingColors ) ) { 00922 delete_pixmaps(); 00923 readConfig(); 00924 create_pixmaps(); 00925 resetDecorations(changed); 00926 return true; 00927 } else { 00928 resetDecorations(changed); 00929 return false; 00930 } 00931 } 00932 00933 QValueList< RedmondDecoFactory::BorderSize > RedmondDecoFactory::borderSizes() const 00934 { // the list must be sorted 00935 return QValueList< BorderSize >() << BorderNormal << BorderLarge << 00936 BorderVeryLarge << BorderHuge << BorderVeryHuge << BorderOversized; 00937 } 00938 00939 } 00940 00941 extern "C" KDecorationFactory *create_factory() 00942 { 00943 return new Redmond::RedmondDecoFactory(); 00944 } 00945 00946 00947 #include "redmond.moc" 00948 // vim: ts=4
KDE Logo
This file is part of the documentation for kwin Library Version 3.3.0.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Fri Aug 13 21:47:06 2004 by doxygen 1.3.8 written by Dimitri van Heesch, © 1997-2003