750 lines
23 KiB
C++
750 lines
23 KiB
C++
/* Plastik KWin window decoration
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Copyright (C) 2003 Sandro Giessl <ceebx@users.sourceforge.net>
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based on the window decoration "Web":
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Copyright (C) 2001 Rik Hemsley (rikkus) <rik@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <klocale.h>
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#include <kpixmap.h>
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#include <kpixmapeffect.h>
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#include <kapplication.h>
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#include <qbitmap.h>
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#include <qdatetime.h>
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#include <qfontmetrics.h>
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#include <qimage.h>
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#include <qlabel.h>
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#include <qlayout.h>
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#include <qpainter.h>
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#include <qpixmap.h>
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#include <qdesktopwidget.h>
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#include "plastikclient.h"
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#include "plastikbutton.h"
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#include "misc.h"
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#include "shadow.h"
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namespace KWinPlastik
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{
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PlastikClient::PlastikClient(KDecorationBridge* bridge, KDecorationFactory* factory)
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: KCommonDecoration (bridge, factory),
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aCaptionBuffer(0), iCaptionBuffer(0),
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aTitleBarTile(0), iTitleBarTile(0), aTitleBarTopTile(0), iTitleBarTopTile(0),
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pixmaps_created(false),
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captionBufferDirty(true),
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s_titleFont(QFont() )
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{ }
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PlastikClient::~PlastikClient()
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{
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delete_pixmaps();
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delete aCaptionBuffer;
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delete iCaptionBuffer;
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}
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QString PlastikClient::visibleName() const
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{
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return i18n("Plastik");
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}
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QString PlastikClient::defaultButtonsLeft() const
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{
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return "M";
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}
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QString PlastikClient::defaultButtonsRight() const
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{
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return "HIAX";
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}
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bool PlastikClient::decorationBehaviour(DecorationBehaviour behaviour) const
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{
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switch (behaviour) {
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case DB_MenuClose:
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return PlastikHandler::menuClose();
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case DB_WindowMask:
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return true;
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default:
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return KCommonDecoration::decorationBehaviour(behaviour);
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}
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}
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int PlastikClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *) const
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{
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bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
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switch (lm) {
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case LM_BorderLeft:
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case LM_BorderRight:
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case LM_BorderBottom:
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{
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if (respectWindowState && maximized) {
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return 0;
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} else {
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return PlastikHandler::borderSize();
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}
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}
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case LM_TitleEdgeTop:
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{
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if (respectWindowState && maximized) {
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return 0;
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} else {
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return 4;
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}
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}
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case LM_TitleEdgeBottom:
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{
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if (respectWindowState && maximized) {
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return 1;
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} else {
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return 2;
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}
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}
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case LM_TitleEdgeLeft:
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case LM_TitleEdgeRight:
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{
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if (respectWindowState && maximized) {
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return 0;
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} else {
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return 6;
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}
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}
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case LM_TitleBorderLeft:
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case LM_TitleBorderRight:
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return 5;
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case LM_ButtonWidth:
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case LM_ButtonHeight:
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case LM_TitleHeight:
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{
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if (respectWindowState && isToolWindow()) {
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return PlastikHandler::titleHeightTool();
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} else {
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return PlastikHandler::titleHeight();
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}
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}
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case LM_ButtonSpacing:
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return 1;
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case LM_ExplicitButtonSpacer:
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return 3;
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default:
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return 0;
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}
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}
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KCommonDecorationButton *PlastikClient::createButton(ButtonType type)
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{
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switch (type) {
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case MenuButton:
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return new PlastikButton(MenuButton, this, "menu");
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case OnAllDesktopsButton:
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return new PlastikButton(OnAllDesktopsButton, this, "on_all_desktops");
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case HelpButton:
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return new PlastikButton(HelpButton, this, "help");
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case MinButton:
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return new PlastikButton(MinButton, this, "minimize");
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case MaxButton:
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return new PlastikButton(MaxButton, this, "maximize");
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case CloseButton:
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return new PlastikButton(CloseButton, this, "close");
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case AboveButton:
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return new PlastikButton(AboveButton, this, "above");
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case BelowButton:
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return new PlastikButton(BelowButton, this, "below");
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case ShadeButton:
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return new PlastikButton(ShadeButton, this, "shade");
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default:
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return 0;
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}
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}
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void PlastikClient::init()
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{
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s_titleFont = isToolWindow() ?
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PlastikHandler::titleFontTool()
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: PlastikHandler::titleFont();
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create_pixmaps();
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aCaptionBuffer = new QPixmap();
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iCaptionBuffer = new QPixmap();
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captionBufferDirty = true;
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KCommonDecoration::init();
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}
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QRegion PlastikClient::cornerShape(WindowCorner corner)
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{
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int w = widget()->width();
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int h = widget()->height();
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switch (corner) {
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case WC_TopLeft:
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if (layoutMetric(LM_TitleEdgeLeft) > 0)
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return QRegion(0, 0, 1, 2) + QRegion(1, 0, 1, 1);
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else
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return QRegion();
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case WC_TopRight:
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if (layoutMetric(LM_TitleEdgeRight) > 0)
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return QRegion(w-1, 0, 1, 2) + QRegion(w-2, 0, 1, 1);
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else
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return QRegion();
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case WC_BottomLeft:
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if (layoutMetric(LM_BorderBottom) > 0)
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return QRegion(0, h-1, 1, 1);
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else
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return QRegion();
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case WC_BottomRight:
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if (layoutMetric(LM_BorderBottom) > 0)
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return QRegion(w-1, h-1, 1, 1);
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else
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return QRegion();
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default:
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return QRegion();
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}
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}
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void PlastikClient::paintEvent(QPaintEvent *e)
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{
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QRegion region = e->region();
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if (oldCaption != caption() )
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captionBufferDirty = true;
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if (captionBufferDirty)
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update_captionBuffer();
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bool active = isActive();
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QPainter painter(widget() );
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QRegion mask;
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// colors...
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const QColor windowContour = PlastikHandler::getColor(WindowContour, active);
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const QColor deco = PlastikHandler::getColor(TitleGradientTo, active);
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const QColor border = PlastikHandler::getColor(Border, active);
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const QColor highlightTop = PlastikHandler::getColor(TitleHighlightTop, active);
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const QColor highlightTitleLeft = alphaBlendColors(deco,
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PlastikHandler::getColor(SideHighlightLeft, active), 150);
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const QColor highlightTitleRight = alphaBlendColors(deco,
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PlastikHandler::getColor(SideHighlightRight, active), 150);
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const QColor highlightLeft = alphaBlendColors(border,
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PlastikHandler::getColor(SideHighlightLeft, active), 150);
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const QColor highlightRight = alphaBlendColors(border,
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PlastikHandler::getColor(SideHighlightRight, active), 150);
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const QColor highlightBottom = alphaBlendColors(border,
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PlastikHandler::getColor(SideHighlightBottom, active), 150);
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const QColor filledCorner = QColor(0,0,0);
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// often needed coordinates
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QRect r = widget()->rect();
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int r_w = r.width();
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// int r_h = r.height();
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int r_x, r_y, r_x2, r_y2;
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r.coords(&r_x, &r_y, &r_x2, &r_y2);
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const int borderLeft = layoutMetric(LM_BorderLeft);
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const int borderRight = layoutMetric(LM_BorderRight);
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const int borderBottom = layoutMetric(LM_BorderBottom);
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const int titleHeight = layoutMetric(LM_TitleHeight);
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const int titleEdgeTop = layoutMetric(LM_TitleEdgeTop);
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const int titleEdgeBottom = layoutMetric(LM_TitleEdgeBottom);
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const int titleEdgeLeft = layoutMetric(LM_TitleEdgeLeft);
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const int titleEdgeRight = layoutMetric(LM_TitleEdgeRight);
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const int borderBottomTop = r_y2-borderBottom+1;
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const int borderLeftRight = r_x+borderLeft-1;
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const int borderRightLeft = r_x2-borderRight+1;
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const int titleEdgeLeftRight = r_x+titleEdgeLeft-1;
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const int titleEdgeRightLeft = r_x2-titleEdgeRight+1;
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const int titleEdgeTopBottom = r_y+titleEdgeTop;
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const int titleEdgeBottomTop = r_y+titleEdgeTop+titleHeight+1;
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const int titleEdgeBottomBottom = r_y+titleEdgeTop+titleHeight+titleEdgeBottom-1;
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const int sideHeight = borderBottomTop-titleEdgeBottomBottom-1;
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QRect Rtitle = QRect(r_x+titleEdgeLeft+buttonsLeftWidth(), r_y+titleEdgeTop,
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r_x2-titleEdgeRight-buttonsRightWidth()-(r_x+titleEdgeLeft+buttonsLeftWidth()),
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titleEdgeBottomBottom-(r_y+titleEdgeTop) );
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QRect tempRect;
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// Draw the window contour
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painter.setPen(windowContour );
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if (titleEdgeTop > 0) {
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painter.drawLine(r_x+2, r_y, r_x2-2, r_y );
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painter.drawPoint(r_x+1, r_y+1 );
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painter.drawPoint(r_x2-1, r_y+1 );
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painter.drawLine(r_x, r_y+2, r_x, titleEdgeTopBottom );
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painter.drawLine(r_x2, r_y+2, r_x2, titleEdgeTopBottom );
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}
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if(borderLeft > 0 && sideHeight > 0) {
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painter.drawLine(r_x, Rtitle.top()/*titleEdgeBottomBottom+1*/,
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r_x, r_y2-1 );
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}
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if(borderRight > 0 && sideHeight > 0) {
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painter.drawLine(r_x2, Rtitle.top()/*titleEdgeBottomBottom+1*/,
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r_x2, r_y2-1 );
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}
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if(borderBottom > 0) {
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painter.drawLine(r_x+1, r_y2,
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r_x2-1, r_y2 );
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}
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// topSpacer
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if(titleEdgeTop > 0)
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{
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painter.setPen(highlightTop );
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painter.drawLine(r_x+3, r_y+1, r_x2-3, r_y+1 );
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// a bit anti-aliasing for the window contour...
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painter.setPen(alphaBlendColors(highlightTop, windowContour, 150) );
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painter.drawPoint(r_x+2, r_y+1);
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painter.drawPoint(r_x2-2, r_y+1);
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painter.setPen(alphaBlendColors(highlightTitleLeft, windowContour, 150) );
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painter.drawPoint(r_x+1, r_y+2);
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painter.setPen(alphaBlendColors(highlightTitleRight, windowContour, 150) );
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painter.drawPoint(r_x2-1, r_y+2);
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// highlight...
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painter.setPen(highlightTitleLeft);
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painter.drawLine(r_x+1, r_y+3, r_x+1, titleEdgeTopBottom );
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painter.setPen(highlightTitleRight);
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painter.drawLine(r_x2-1, r_y+3, r_x2-1, titleEdgeTopBottom );
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tempRect.setRect(r_x+2, r_y+2, r_w-2*2, titleEdgeTop-2 );
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if (tempRect.isValid() && region.contains(tempRect) ) {
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painter.drawTiledPixmap(tempRect, active ? *aTitleBarTopTile : *iTitleBarTopTile);
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}
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// outside the region normally masked by doShape
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painter.setPen(filledCorner);
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painter.drawLine(r_x, r_y, r_x+1, r_y );
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painter.drawPoint(r_x, r_y+1);
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painter.drawLine(r_x2, r_y, r_x2-1, r_y );
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painter.drawPoint(r_x2, r_y+1);
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}
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// leftTitleSpacer
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int titleMarginLeft = 0;
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int titleMarginRight = 0;
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if(titleEdgeLeft > 0)
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{
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painter.setPen(highlightTitleLeft);
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painter.drawLine(r_x+1, Rtitle.top(),
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r_x+1, Rtitle.bottom() );
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titleMarginLeft = 2;
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}
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// rightTitleSpacer
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if(titleEdgeRight > 0)
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{
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painter.setPen(highlightTitleRight);
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painter.drawLine(r_x2-1, Rtitle.top(),
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r_x2-1, Rtitle.bottom() );
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titleMarginRight = 2;
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}
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// titleSpacer
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QPixmap *titleBfrPtr = active ? aCaptionBuffer : iCaptionBuffer;
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if(Rtitle.width() > 0 && titleBfrPtr != 0)
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{
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m_captionRect = captionRect(); // also update m_captionRect!
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if (m_captionRect.isValid() && region.contains(m_captionRect) )
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{
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painter.drawTiledPixmap(m_captionRect, *titleBfrPtr);
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}
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// left to the title
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tempRect.setRect(r_x+titleMarginLeft, m_captionRect.top(),
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m_captionRect.left() - (r_x+titleMarginLeft), m_captionRect.height() );
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if (tempRect.isValid() && region.contains(tempRect) ) {
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painter.drawTiledPixmap(tempRect, active ? *aTitleBarTile : *iTitleBarTile);
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}
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// right to the title
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tempRect.setRect(m_captionRect.right()+1, m_captionRect.top(),
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(r_x2-titleMarginRight) - m_captionRect.right(), m_captionRect.height() );
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if (tempRect.isValid() && region.contains(tempRect) ) {
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painter.drawTiledPixmap(tempRect, active ? *aTitleBarTile : *iTitleBarTile);
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}
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}
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titleBfrPtr = 0;
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// decoSpacer
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if(titleEdgeBottom > 0)
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{
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int l;
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if(borderLeft != 0)
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l = r_x+2;
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else
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l = r_x;
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int r;
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if(borderRight != 0)
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r = r_x2-2;
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else
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r = r_x2;
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painter.setPen(deco );
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painter.drawLine(l, titleEdgeBottomBottom-1, r, titleEdgeBottomBottom-1 );
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painter.drawLine(l, titleEdgeBottomBottom, r, titleEdgeBottomBottom );
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if(borderLeft != 0) {
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painter.setPen(highlightTitleLeft);
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painter.drawLine(r_x+1, titleEdgeBottomTop,
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r_x+1, titleEdgeBottomBottom );
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}
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if(borderRight != 0) {
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painter.setPen(highlightTitleRight);
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painter.drawLine(r_x2-1, titleEdgeBottomTop,
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r_x2-1, titleEdgeBottomBottom );
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}
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}
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// leftSpacer
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if(borderLeft > 0 && sideHeight > 0)
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{
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painter.setPen(highlightLeft );
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painter.drawLine(r_x+1, titleEdgeBottomBottom+1,
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r_x+1, borderBottomTop-1 );
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if(borderLeft > 2) {
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tempRect.setCoords(r_x+2, titleEdgeBottomBottom+1,
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borderLeftRight, borderBottomTop-1 );
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painter.fillRect(tempRect, border );
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}
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}
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// rightSpacer
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if(borderRight > 0 && sideHeight > 0)
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{
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painter.setPen(highlightRight );
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painter.drawLine(r_x2-1, titleEdgeBottomBottom+1,
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r_x2-1, borderBottomTop-1 );
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if(borderRight > 2) {
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tempRect.setCoords(borderRightLeft, titleEdgeBottomBottom+1,
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r_x2-2, borderBottomTop-1 );
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painter.fillRect(tempRect, border );
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}
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}
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// bottomSpacer
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if(borderBottom > 0)
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{
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if(borderLeft != 0) {
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painter.setPen(highlightLeft );
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painter.drawLine(r_x+1, borderBottomTop,
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r_x+1, r_y2-2 );
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// anti-alias for the window contour...
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painter.setPen(alphaBlendColors(border, windowContour, 110) );
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painter.drawPoint(r_x+1, r_y2-1);
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}
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if(borderRight != 0) {
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painter.setPen(highlightRight );
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painter.drawLine(r_x2-1, borderBottomTop,
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r_x2-1, r_y2-2 );
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// anti-alias for the window contour...
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painter.setPen(alphaBlendColors(border, windowContour, 110) );
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painter.drawPoint(r_x2-1, r_y2-1);
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}
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// outside the region normally masked by doShape
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painter.setPen(filledCorner);
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painter.drawPoint(r_x, r_y2);
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painter.drawPoint(r_x2, r_y2);
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int l;
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if(borderLeft != 0)
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l = r_x+2;
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else
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l = r_x;
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int r;
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if(borderRight != 0)
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r = r_x2-2;
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else
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r = r_x2;
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painter.setPen(highlightBottom );
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painter.drawLine(l, r_y2-1,
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r, r_y2-1 );
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tempRect.setCoords(l, borderBottomTop, r, r_y2-2);
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painter.fillRect(tempRect, border );
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}
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}
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QRect PlastikClient::captionRect() const
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{
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QPixmap *titleBfrPtr = isActive() ? aCaptionBuffer : iCaptionBuffer;
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if (titleBfrPtr) {
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QRect r = widget()->rect();
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const int titleHeight = layoutMetric(LM_TitleHeight);
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const int titleEdgeTop = layoutMetric(LM_TitleEdgeTop);
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const int titleEdgeLeft = layoutMetric(LM_TitleEdgeLeft);
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const int marginLeft = layoutMetric(LM_TitleBorderLeft);
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const int marginRight = layoutMetric(LM_TitleBorderRight);
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const int titleLeft = r.left() + titleEdgeLeft + buttonsLeftWidth() + marginLeft;
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const int titleWidth = r.width() -
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titleEdgeLeft - layoutMetric(LM_TitleEdgeRight) -
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buttonsLeftWidth() - buttonsRightWidth() -
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marginLeft - marginRight;
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Qt::AlignmentFlags a = PlastikHandler::titleAlign();
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int tX, tW; // position/width of the title buffer
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if (titleBfrPtr->width() > titleWidth) {
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tW = titleWidth;
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} else {
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tW = titleBfrPtr->width();
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}
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if (a == Qt::AlignLeft || (titleBfrPtr->width() > titleWidth) ) {
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// Align left
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tX = titleLeft;
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} else if (a == Qt::AlignHCenter) {
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// Align center
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tX = titleLeft+(titleWidth- titleBfrPtr->width() )/2;
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} else {
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// Align right
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tX = titleLeft+titleWidth-titleBfrPtr->width();
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}
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return QRect(tX, r.top()+titleEdgeTop, tW, titleHeight);
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}
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return QRect();
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}
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void PlastikClient::updateCaption()
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{
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QRect oldCaptionRect = m_captionRect;
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if (oldCaption != caption() )
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captionBufferDirty = true;
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if (captionBufferDirty)
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update_captionBuffer();
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m_captionRect = PlastikClient::captionRect();
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if (oldCaptionRect.isValid() && m_captionRect.isValid() )
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widget()->update(oldCaptionRect|m_captionRect);
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else
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widget()->update();
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}
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void PlastikClient::reset( unsigned long changed )
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{
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if (changed & SettingColors)
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{
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// repaint the whole thing
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delete_pixmaps();
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create_pixmaps();
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captionBufferDirty = true;
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widget()->update();
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updateButtons();
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} else if (changed & SettingFont) {
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// font has changed -- update title height and font
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s_titleFont = isToolWindow() ?
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PlastikHandler::titleFontTool()
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: PlastikHandler::titleFont();
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updateLayout();
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// then repaint
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delete_pixmaps();
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create_pixmaps();
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captionBufferDirty = true;
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widget()->update();
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}
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KCommonDecoration::reset(changed);
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}
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void PlastikClient::create_pixmaps()
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{
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if(pixmaps_created)
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return;
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KPixmap tempPixmap;
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QPainter painter;
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const int tet = layoutMetric(LM_TitleEdgeTop, false);
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const int th = layoutMetric(LM_TitleHeight, false);
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// aTitleBarTopTile
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tempPixmap.resize(1, tet-1-1 );
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KPixmapEffect::gradient(tempPixmap,
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PlastikHandler::getColor(TitleGradientToTop, true),
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PlastikHandler::getColor(TitleGradientFrom, true),
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KPixmapEffect::VerticalGradient);
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aTitleBarTopTile = new QPixmap(1, tet-1-1 );
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painter.begin(aTitleBarTopTile);
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painter.drawPixmap(0, 0, tempPixmap);
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painter.end();
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// aTitleBarTile
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tempPixmap.resize(1, th );
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KPixmapEffect::gradient(tempPixmap,
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PlastikHandler::getColor(TitleGradientFrom, true),
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PlastikHandler::getColor(TitleGradientTo, true),
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KPixmapEffect::VerticalGradient);
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aTitleBarTile = new QPixmap(1, th );
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painter.begin(aTitleBarTile);
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painter.drawPixmap(0, 0, tempPixmap);
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painter.end();
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// iTitleBarTopTile
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tempPixmap.resize(1, tet-1-1 );
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KPixmapEffect::gradient(tempPixmap,
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PlastikHandler::getColor(TitleGradientToTop, false),
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PlastikHandler::getColor(TitleGradientFrom, false),
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KPixmapEffect::VerticalGradient);
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iTitleBarTopTile = new QPixmap(1, tet-1-1 );
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painter.begin(iTitleBarTopTile);
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painter.drawPixmap(0, 0, tempPixmap);
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painter.end();
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// iTitleBarTile
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tempPixmap.resize(1, th );
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KPixmapEffect::gradient(tempPixmap,
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PlastikHandler::getColor(TitleGradientFrom, false),
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PlastikHandler::getColor(TitleGradientTo, false),
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KPixmapEffect::VerticalGradient);
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iTitleBarTile = new QPixmap(1, th );
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painter.begin(iTitleBarTile);
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painter.drawPixmap(0, 0, tempPixmap);
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painter.end();
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pixmaps_created = true;
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}
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void PlastikClient::delete_pixmaps()
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{
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delete aTitleBarTopTile;
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aTitleBarTopTile = 0;
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delete iTitleBarTopTile;
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iTitleBarTopTile = 0;
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delete aTitleBarTile;
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aTitleBarTile = 0;
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delete iTitleBarTile;
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iTitleBarTile = 0;
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pixmaps_created = false;
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}
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void PlastikClient::update_captionBuffer()
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{
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oldCaption = caption();
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const uint maxCaptionLength = 300; // truncate captions longer than this!
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QString c(caption() );
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if (c.length() > maxCaptionLength) {
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c.truncate(maxCaptionLength);
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c.append(" [...]");
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}
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QFontMetrics fm(s_titleFont);
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int captionWidth = fm.width(c);
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const int th = layoutMetric(LM_TitleHeight, false);
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QPixmap textPixmap;
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QPainter painter;
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if(PlastikHandler::titleShadow())
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{
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// prepare the shadow
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textPixmap = QPixmap(captionWidth+2*2, th ); // 2*2 px shadow space
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textPixmap.fill(QColor(0,0,0));
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textPixmap.setMask( textPixmap.createHeuristicMask(TRUE) );
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painter.begin(&textPixmap);
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painter.setFont(s_titleFont);
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painter.setPen(white);
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painter.drawText(textPixmap.rect(), AlignCenter, c );
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painter.end();
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}
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QImage shadow;
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ShadowEngine se;
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// active
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aCaptionBuffer->resize(captionWidth+4, th ); // 4 px shadow
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painter.begin(aCaptionBuffer);
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painter.drawTiledPixmap(aCaptionBuffer->rect(), *aTitleBarTile);
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if(PlastikHandler::titleShadow())
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{
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QColor shadowColor;
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if (qGray(PlastikHandler::getColor(TitleFont,true).rgb()) < 100)
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shadowColor = QColor(255, 255, 255);
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else
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shadowColor = QColor(0,0,0);
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shadow = se.makeShadow(textPixmap, shadowColor);
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painter.drawImage(1, 1, shadow);
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}
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painter.setFont(s_titleFont);
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painter.setPen(PlastikHandler::getColor(TitleFont,true));
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painter.drawText(aCaptionBuffer->rect(), AlignCenter, c );
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painter.end();
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// inactive
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iCaptionBuffer->resize(captionWidth+4, th );
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painter.begin(iCaptionBuffer);
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painter.drawTiledPixmap(iCaptionBuffer->rect(), *iTitleBarTile);
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if(PlastikHandler::titleShadow())
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{
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painter.drawImage(1, 1, shadow);
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}
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painter.setFont(s_titleFont);
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painter.setPen(PlastikHandler::getColor(TitleFont,false));
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painter.drawText(iCaptionBuffer->rect(), AlignCenter, c );
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painter.end();
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captionBufferDirty = false;
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}
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} // KWinPlastik
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