497 lines
15 KiB
C++
497 lines
15 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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// oxygenclient.cpp
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// -------------------
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// Oxygen window decoration for KDE
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// -------------------
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// Copyright (c) 2006, 2007 Casper Boemann <cbr@boemann.dk>
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// Copyright (c) 2006, 2007 Riccardo Iaconelli <riccardo@kde.org>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//////////////////////////////////////////////////////////////////////////////
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// #ifndef OXYGENCLIENT_H
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// #define OXYGENCLIENT_H
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#include "oxygenclient.h"
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#include <KConfig>
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#include <KGlobal>
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#include <KLocale>
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#include <KDebug>
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#include <KColorUtils>
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#include <QBitmap>
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#include <QLabel>
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#include <QLayout>
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#include <QPainter>
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#include <QToolTip>
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//Added by qt3to4:
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#include <QBoxLayout>
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#include <QGridLayout>
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#include <QResizeEvent>
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#include <QMouseEvent>
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#include <QEvent>
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#include <QShowEvent>
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#include <QPaintEvent>
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#include <QPainterPath>
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#include <QTimer>
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#include <QCache>
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#include <QtGui/QApplication>
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#include "math.h"
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#include "oxygenclient.moc"
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#include "oxygenbutton.h"
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#include "oxygen.h"
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namespace Oxygen
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{
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K_GLOBAL_STATIC_WITH_ARGS(OxygenHelper, globalHelper, ("OxygenDeco"))
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OxygenHelper *oxygenHelper()
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{
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return globalHelper;
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}
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static void oxkwincleanupBefore()
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{
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OxygenHelper *h = globalHelper;
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h->invalidateCaches();
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}
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void renderDot(QPainter *p, const QPointF &point, qreal diameter)
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{
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p->drawEllipse(QRectF(point.x()-diameter/2, point.y()-diameter/2, diameter, diameter));
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}
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OxygenClient::OxygenClient(KDecorationBridge *b, KDecorationFactory *f)
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: KCommonDecorationUnstable(b, f)
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, colorCacheInvalid_(true)
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, helper_(*globalHelper)
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{
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qAddPostRoutine(oxkwincleanupBefore);
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}
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OxygenClient::~OxygenClient()
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{
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}
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QString OxygenClient::visibleName() const
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{
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return i18n("Oxygen");
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}
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void OxygenClient::init()
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{
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KCommonDecoration::init();
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widget()->setAutoFillBackground(false);
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widget()->setAttribute(Qt::WA_OpaquePaintEvent);
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}
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bool OxygenClient::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 true;//Handler()->menuClose();
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case DB_WindowMask:
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return false;
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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 OxygenClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *btn) const
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{
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bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
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int frameWidth = OxygenFactory::borderSize();
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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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// Even for thin borders (2px wide) we want to preserve
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// the rounded corners having a minimum height of 7px
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if (lm == LM_BorderBottom) {
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return qMax(frameWidth, 7);
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} else {
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return frameWidth;
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}
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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 TFRAMESIZE;
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}
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}
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case LM_TitleEdgeBottom:
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{
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return 0;
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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 OXYGEN_BUTTONSIZE;
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} else {
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return OXYGEN_BUTTONSIZE;
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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_ButtonMarginTop:
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return 0;
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default:
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return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
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}
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}
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KCommonDecorationButton *OxygenClient::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 OxygenButton(*this, i18n("Menu"), ButtonMenu);
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case HelpButton:
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return new OxygenButton(*this, i18n("Help"), ButtonHelp);
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case MinButton:
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return new OxygenButton(*this, i18n("Minimize"), ButtonMin);
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case MaxButton:
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return new OxygenButton(*this, i18n("Maximize"), ButtonMax);
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case CloseButton:
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return new OxygenButton(*this, i18n("Close"), ButtonClose);
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case AboveButton:
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return new OxygenButton(*this, i18n("Keep Above Others"), ButtonAbove);
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case BelowButton:
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return new OxygenButton(*this, i18n("Keep Below Others"), ButtonBelow);
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case OnAllDesktopsButton:
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return new OxygenButton(*this, i18n("On All Desktops"), ButtonSticky);
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case ShadeButton:
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return new OxygenButton(*this, i18n("Shade Button"), ButtonShade);
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default:
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return 0;
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}
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}
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// c0 - background
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// c1 - foreground
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// t - target contrast ratio
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QColor reduceContrast(const QColor &c0, const QColor &c1, double t)
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{
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double s = KColorUtils::contrastRatio(c0, c1);
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if (s < t)
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return c1;
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double l = 0.0, h = 1.0;
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double x = s, a;
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QColor r = c1;
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for (int maxiter = 16; maxiter; --maxiter) {
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a = 0.5 * (l + h);
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r = KColorUtils::mix(c0, c1, a);
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x = KColorUtils::contrastRatio(c0, r);
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if (fabs(x - t) < 0.01)
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break;
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if (x > t)
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h = a;
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else
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l = a;
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}
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return r;
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}
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QColor OxygenClient::titlebarTextColor(const QPalette &palette)
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{
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if (isActive())
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return palette.color(QPalette::Active, QPalette::WindowText);
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else {
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if(colorCacheInvalid_) {
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QColor ab = palette.color(QPalette::Active, QPalette::Window);
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QColor af = palette.color(QPalette::Active, QPalette::WindowText);
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QColor nb = palette.color(QPalette::Inactive, QPalette::Window);
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QColor nf = palette.color(QPalette::Inactive, QPalette::WindowText);
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colorCacheInvalid_ = false;
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cachedTitlebarTextColor_ = reduceContrast(nb, nf, qMax(qreal(2.5), KColorUtils::contrastRatio(ab, KColorUtils::mix(ab, af, 0.4))));
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}
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return cachedTitlebarTextColor_;
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}
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}
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void OxygenClient::paintEvent(QPaintEvent *e)
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{
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Q_UNUSED(e)
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if (!OxygenFactory::initialized()) return;
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updateButtons();
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QPalette palette = widget()->palette();
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QPainter painter(widget());
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// Set palette to the right group.
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// TODO - fix KWin to do this for us :-).
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if (isActive())
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palette.setCurrentColorGroup(QPalette::Active);
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else
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palette.setCurrentColorGroup(QPalette::Inactive);
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int x,y,w,h;
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QRect frame = widget()->frameGeometry();
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QColor color = palette.window().color();
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QColor light = helper_.calcLightColor( color );
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QColor dark = helper_.calcDarkColor( color );
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const int titleHeight = layoutMetric(LM_TitleHeight);
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const int titleTop = layoutMetric(LM_TitleEdgeTop) + frame.top();
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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 = frame.left() + titleEdgeLeft + buttonsLeftWidth() + marginLeft;
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const int titleWidth = frame.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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// draw window background
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helper_.renderWindowBackground(&painter, frame, this->widget(), palette, 0);
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// draw title text
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painter.setFont(options()->font(isActive(), false));
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painter.setPen(titlebarTextColor(palette));
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painter.drawText(titleLeft, titleTop-1, titleWidth, titleHeight, // -1 is to go into top resizearea
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OxygenFactory::titleAlignment() | Qt::AlignVCenter, caption());
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painter.setRenderHint(QPainter::Antialiasing);
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// Draw dividing line
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frame = widget()->rect();
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if (shadowsActive()) {
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frame.adjust(-1,-1,1,1);
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}
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frame.getRect(&x, &y, &w, &h);
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if(isActive()) {
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helper_.drawSeparator(&painter, QRect(x, titleTop+titleHeight-1.5, w, 2), color, Qt::Horizontal);
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}
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// draw stripes as indicator for active windows
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if (isActive() && OxygenFactory::showStripes()) {
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Qt::Alignment align = OxygenFactory::titleAlignment();
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if (widget()->layoutDirection() == Qt::RightToLeft)
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{
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if (align == Qt::AlignLeft)
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align = Qt::AlignRight;
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else if (align == Qt::AlignRight)
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align = Qt::AlignLeft;
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}
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if (align & Qt::AlignLeft) {
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int left = titleLeft + QFontMetrics(options()->font(isActive(), false)).width(caption()) + 4;
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int right = titleLeft + titleWidth;
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if (left < right)
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drawStripes(&painter, palette, left, right, titleTop+6);
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}
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if (align & Qt::AlignRight) {
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int left = titleLeft;
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int right = titleLeft + titleWidth - QFontMetrics(options()->font(isActive(), false)).width(caption()) - 4;
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if (left < right)
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drawStripes(&painter, palette, right, left, titleTop+6);
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}
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if (align & Qt::AlignHCenter) {
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int textWidth = QFontMetrics(options()->font(isActive(), false)).width(caption());
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int left = titleLeft;
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int centerLeft = titleLeft + titleWidth/2 - textWidth/2 - 4;
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int centerRight = titleLeft + titleWidth/2 + textWidth/2 + 4;
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int right = titleLeft + titleWidth;
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if (left < centerLeft && right > centerRight) {
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drawStripes(&painter, palette, centerLeft, left, titleTop+6);
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drawStripes(&painter, palette, centerRight, right, titleTop+6);
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}
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}
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}
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// Draw shadows of the frame
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bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
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if(maximized)
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return;
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helper_.drawFloatFrame(&painter, frame, color, !shadowsActive(), isActive(),
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KDecoration::options()->color(ColorTitleBar));
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if(!isResizable())
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return;
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// Draw the 3-dots resize handles
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qreal cenY = frame.height() / 2 + x + 0.5;
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qreal posX = frame.width() + y - 2.5;
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painter.setPen(Qt::NoPen);
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painter.setBrush(QColor(0, 0, 0, 66));
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renderDot(&painter, QPointF(posX, cenY - 3), 1.8);
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renderDot(&painter, QPointF(posX, cenY), 1.8);
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renderDot(&painter, QPointF(posX, cenY + 3), 1.8);
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painter.translate(x + frame.width()-9, y + frame.height()-9);
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renderDot(&painter, QPointF(2.5, 6.5), 1.8);
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renderDot(&painter, QPointF(5.5, 5.5), 1.8);
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renderDot(&painter, QPointF(6.5, 2.5), 1.8);
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}
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void OxygenClient::drawStripes(QPainter *p, QPalette &palette, const int start, const int end, const int topMargin)
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{
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QLinearGradient stripeGradient(QPoint(start,0), QPoint(end,0));
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stripeGradient.setColorAt(0.0, Qt::transparent);
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stripeGradient.setColorAt(0.05, KDecoration::options()->color(ColorTitleBar));
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stripeGradient.setColorAt(1.0, Qt::transparent);
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QPen pen1(stripeGradient, 0.5);
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QLinearGradient stripeGradient2(QPoint(start,0), QPoint(end,0));
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stripeGradient2.setColorAt(0.0, Qt::transparent);
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stripeGradient2.setColorAt(0.05, helper_.calcLightColor(palette.color(QPalette::Window)));
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stripeGradient2.setColorAt(1.0, Qt::transparent);
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QPen pen2(stripeGradient2, 0.5);
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bool antialiasing = p->testRenderHint(QPainter::Antialiasing);
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p->setRenderHint(QPainter::Antialiasing, false);
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for (int i = 0; i < 3; ++i)
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{
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p->setPen(pen1);
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p->drawLine(QPointF(start, topMargin+4*i), QPointF(end, topMargin+4*i));
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p->setPen(pen2);
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p->drawLine(QPointF(start, topMargin+4*i+1), QPointF(end, topMargin+4*i+1));
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}
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p->setRenderHint(QPainter::Antialiasing, antialiasing);
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}
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void OxygenClient::updateWindowShape()
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{
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bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
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int w=widget()->width();
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int h=widget()->height();
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if(maximized) {
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QRegion mask(0,0,w,h);
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setMask(mask);
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return;
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}
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if (!shadowsActive()) {
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QRegion mask(4, 0, w-8, h);
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mask += QRegion(0, 4, w, h-8);
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mask += QRegion(2, 1, w-4, h-2);
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mask += QRegion(1, 2, w-2, h-4);
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setMask(mask);
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}
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else {
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QRegion mask(5, 0, w-10, h-0);
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mask += QRegion(0, 5, w-0, h-10);
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mask += QRegion(2, 2, w-4, h-4);
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mask += QRegion(3, 1, w-6, h-2);
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mask += QRegion(1, 3, w-2, h-6);
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setMask(mask);
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}
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}
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QList<QRect> OxygenClient::shadowQuads( ShadowType type ) const
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{
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Q_UNUSED(type)
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QSize size = widget()->size();
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int outside=21, underlap=4, cornersize=25;
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// These are underlap under the decoration so the corners look nicer 10px on the outside
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QList<QRect> quads;
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quads.append(QRect(-outside, size.height()-underlap, cornersize, cornersize));
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quads.append(QRect(underlap, size.height()-underlap, size.width()-2*underlap, cornersize));
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quads.append(QRect(size.width()-underlap, size.height()-underlap, cornersize, cornersize));
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quads.append(QRect(-outside, underlap, cornersize, size.height()-2*underlap));
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quads.append(QRect(size.width()-underlap, underlap, cornersize, size.height()-2*underlap));
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quads.append(QRect(-outside, -outside, cornersize, cornersize));
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quads.append(QRect(underlap, -outside, size.width()-2*underlap, cornersize));
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quads.append(QRect(size.width()-underlap, -outside, cornersize, cornersize));
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return quads;
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}
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double OxygenClient::shadowOpacity( ShadowType type ) const
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{
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switch( type ) {
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case ShadowBorderedActive:
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if( isActive() )
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return 1.0;
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return 0.0;
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case ShadowBorderedInactive:
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if( isActive() )
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return 0.0;
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return 1.0;
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default:
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abort(); // Should never be reached
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}
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return 0;
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}
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} //namespace Oxygen
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//#include "oxygenclient.moc"
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// #endif
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