377 lines
12 KiB
C++
377 lines
12 KiB
C++
/*
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* Copyright © 2008 Fredrik Höglund <fredrik@kde.org>
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* Copyright © 2008 Marco Martin <notmart@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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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
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "style_p.h"
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#include <QPainter>
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#include <QStyleOptionComplex>
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#include <QSpinBox>
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#include <QComboBox>
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#include <QApplication>
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#include <kdebug.h>
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#include <plasma/framesvg.h>
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#include <plasma/theme.h>
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namespace Plasma {
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class StylePrivate
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{
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public:
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StylePrivate(Style *style)
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: q(style),
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scrollbar(0),
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textBox(0)
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{
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}
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~StylePrivate()
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{
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}
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void createScrollbar()
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{
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if (!scrollbar) {
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scrollbar = new Plasma::FrameSvg(q);
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scrollbar->setImagePath("widgets/scrollbar");
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scrollbar->setCacheAllRenderedFrames(true);
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}
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}
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void createTextBox()
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{
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if (!textBox) {
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textBox = new Plasma::FrameSvg(q);
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textBox->setImagePath("widgets/lineedit");
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textBox->setElementPrefix("sunken");
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}
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}
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Style *q;
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Plasma::FrameSvg *scrollbar;
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Plasma::FrameSvg *textBox;
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static Plasma::Style::Ptr s_sharedStyle;
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};
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Style::Ptr StylePrivate::s_sharedStyle(0);
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Style::Ptr Style::sharedStyle()
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{
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if (!StylePrivate::s_sharedStyle) {
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StylePrivate::s_sharedStyle = new Style();
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}
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return StylePrivate::s_sharedStyle;
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}
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void Style::doneWithSharedStyle()
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{
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if (StylePrivate::s_sharedStyle.isUnique()) {
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StylePrivate::s_sharedStyle = 0;
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}
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}
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Style::Style()
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: QCommonStyle(),
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d(new StylePrivate(this))
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{
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}
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Style::~Style()
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{
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delete d;
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}
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void Style::drawComplexControl(ComplexControl control,
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const QStyleOptionComplex *option,
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QPainter *painter,
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const QWidget *widget) const
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{
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if (Theme::defaultTheme()->useNativeWidgetStyle()) {
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qApp->style()->drawComplexControl(control, option, painter, widget);
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return;
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}
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switch (control) {
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case CC_ScrollBar: {
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d->createScrollbar();
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing);
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const bool sunken = option->state & State_Sunken;
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const QStyleOptionSlider *scrollOption = qstyleoption_cast<const QStyleOptionSlider *>(option);
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QString prefix;
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if (option->state & State_MouseOver) {
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prefix= "mouseover-";
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}
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QRect subLine;
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QRect addLine;
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if (scrollOption && scrollOption->orientation == Qt::Horizontal) {
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subLine = d->scrollbar->elementRect(prefix + "arrow-left").toRect();
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addLine = d->scrollbar->elementRect(prefix + "arrow-right").toRect();
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} else {
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subLine = d->scrollbar->elementRect(prefix + "arrow-up").toRect();
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addLine = d->scrollbar->elementRect(prefix + "arrow-down").toRect();
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}
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subLine.moveCenter(subControlRect(control, option, SC_ScrollBarSubLine, widget).center());
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addLine.moveCenter(subControlRect(control, option, SC_ScrollBarAddLine, widget).center());
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QRect slider = subControlRect(control, option, SC_ScrollBarSlider, widget);
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if (scrollOption && scrollOption->orientation == Qt::Horizontal) {
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slider.adjust(0, 1, 0, -1);
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} else {
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slider.adjust(1, 0, -1, 0);
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}
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if (scrollOption && scrollOption->orientation == Qt::Horizontal && d->scrollbar->hasElement("background-horizontal-center")) {
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d->scrollbar->setElementPrefix("background-horizontal");
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} else if (scrollOption && scrollOption->orientation == Qt::Vertical && d->scrollbar->hasElement("background-vertical-center")) {
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d->scrollbar->setElementPrefix("background-vertical");
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} else {
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d->scrollbar->setElementPrefix("background");
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}
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d->scrollbar->resizeFrame(option->rect.size());
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d->scrollbar->paintFrame(painter);
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if (sunken && scrollOption && scrollOption->activeSubControls & SC_ScrollBarSlider) {
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d->scrollbar->setElementPrefix("sunken-slider");
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} else {
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d->scrollbar->setElementPrefix(prefix + "slider");
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}
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d->scrollbar->resizeFrame(slider.size());
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d->scrollbar->paintFrame(painter, slider.topLeft());
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if (scrollOption && scrollOption->orientation == Qt::Horizontal) {
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if (sunken && scrollOption->activeSubControls & SC_ScrollBarAddLine) {
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d->scrollbar->paint(painter, addLine, "sunken-arrow-right");
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} else {
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d->scrollbar->paint(painter, addLine, prefix + "arrow-right");
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}
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if (sunken && scrollOption->activeSubControls & SC_ScrollBarSubLine) {
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d->scrollbar->paint(painter, subLine, "sunken-arrow-left");
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} else {
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d->scrollbar->paint(painter, subLine, prefix + "arrow-left");
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}
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} else {
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if (sunken && scrollOption && scrollOption->activeSubControls & SC_ScrollBarAddLine) {
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d->scrollbar->paint(painter, addLine, "sunken-arrow-down");
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} else {
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d->scrollbar->paint(painter, addLine, prefix + "arrow-down");
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}
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if (sunken && scrollOption && scrollOption->activeSubControls & SC_ScrollBarSubLine) {
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d->scrollbar->paint(painter, subLine, "sunken-arrow-up");
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} else {
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d->scrollbar->paint(painter, subLine, prefix + "arrow-up");
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}
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}
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painter->restore();
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break;
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}
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case CC_SpinBox: {
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d->createTextBox();
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d->textBox->setElementPrefix("base");
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d->textBox->resizeFrame(option->rect.size());
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d->textBox->paintFrame(painter);
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const QStyleOptionSpinBox *spinOpt = qstyleoption_cast<const QStyleOptionSpinBox *>(option);
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bool upSunken = (spinOpt->activeSubControls & SC_SpinBoxUp) &&
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(spinOpt->state & (State_Sunken | State_On));
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bool downSunken = (spinOpt->activeSubControls & SC_SpinBoxDown) &&
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(spinOpt->state & (State_Sunken | State_On));
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const QSpinBox *spin = qobject_cast<const QSpinBox *>(widget);
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PrimitiveElement pe;
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if (spin->buttonSymbols() == QSpinBox::PlusMinus) {
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pe = PE_IndicatorSpinPlus;
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} else {
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pe = PE_IndicatorArrowUp;
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}
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QStyleOption upOpt;
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upOpt = *option;
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upOpt.rect = subControlRect(CC_SpinBox, option, SC_SpinBoxUp, widget);
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if (upSunken) {
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upOpt.state = State_Sunken|State_Enabled;
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} else {
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upOpt.state = State_Enabled;
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}
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qApp->style()->drawPrimitive(pe, &upOpt, painter, widget);
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if (spin->buttonSymbols() == QSpinBox::PlusMinus) {
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pe = PE_IndicatorSpinMinus;
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} else {
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pe = PE_IndicatorArrowDown;
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}
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QStyleOption downOpt;
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downOpt= *option;
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downOpt.rect = subControlRect(CC_SpinBox, option, SC_SpinBoxDown, widget);
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if (downSunken) {
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downOpt.state = State_Sunken|State_Enabled;
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} else {
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downOpt.state = State_Enabled;
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}
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qApp->style()->drawPrimitive(pe, &downOpt, painter, widget);
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break;
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}
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case CC_ComboBox: {
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const QComboBox *combo = qobject_cast<const QComboBox *>(widget);
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if (!combo->isEditable()) {
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qApp->style()->drawComplexControl(control, option, painter, widget);
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} else {
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d->createTextBox();
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d->textBox->setElementPrefix("base");
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d->textBox->resizeFrame(option->rect.size());
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d->textBox->paintFrame(painter);
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QStyleOption arrowOpt;
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arrowOpt = *option;
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arrowOpt.rect = subControlRect(CC_ComboBox, option, SC_ComboBoxArrow, widget);
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qApp->style()->drawPrimitive(PE_IndicatorArrowDown, &arrowOpt, painter, widget);
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}
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break;
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}
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default:
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qApp->style()->drawComplexControl(control, option, painter, widget);
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}
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}
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void Style::drawPrimitive(PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const
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{
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if (Theme::defaultTheme()->useNativeWidgetStyle()) {
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qApp->style()->drawPrimitive(element, option, painter, widget);
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return;
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}
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switch (element) {
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case PE_PanelLineEdit:
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//comboboxes draws their own frame
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if (qobject_cast<QComboBox *>(widget->parent())) {
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return;
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}
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d->createTextBox();
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d->textBox->setElementPrefix("base");
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d->textBox->resizeFrame(option->rect.size());
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d->textBox->paintFrame(painter);
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break;
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default:
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qApp->style()->drawPrimitive(element, option, painter, widget);
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}
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}
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QRect Style::subControlRect(ComplexControl control, const QStyleOptionComplex *option,
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SubControl subControl, const QWidget *widget) const
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{
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QRect rect(QCommonStyle::subControlRect(control, option, subControl, widget));
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switch (control) {
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case CC_Slider: {
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const QStyleOptionSlider *sliderOpt = qstyleoption_cast<const QStyleOptionSlider *>(option);
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if (sliderOpt) {
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if (sliderOpt->orientation == Qt::Horizontal) {
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rect.moveCenter(QPoint(rect.center().x(), option->rect.center().y()));
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} else {
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rect.moveCenter(QPoint(option->rect.center().x(), rect.center().y()));
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}
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}
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return rect;
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break;
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}
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default:
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return rect;
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}
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}
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int Style::pixelMetric(PixelMetric metric, const QStyleOption *option, const QWidget *widget) const
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{
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if (Theme::defaultTheme()->useNativeWidgetStyle()) {
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return qApp->style()->pixelMetric(metric, option, widget);
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}
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switch (metric) {
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case PM_ScrollBarExtent: {
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d->createScrollbar();
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const QStyleOptionSlider *scrollOption = qstyleoption_cast<const QStyleOptionSlider *>(option);
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if (scrollOption && scrollOption->orientation == Qt::Vertical) {
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return d->scrollbar->elementSize("arrow-down").width() + 2;
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} else {
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return d->scrollbar->elementSize("arrow-left").height() + 2;
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}
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}
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default:
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return qApp->style()->pixelMetric(metric, option, widget);
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}
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}
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QRect Style::subElementRect(SubElement element, const QStyleOption *option, const QWidget *widget) const
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{
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switch (element) {
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case SE_LineEditContents: {
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d->createTextBox();
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d->textBox->setElementPrefix("base");
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qreal left, top, right, bottom;
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d->textBox->getMargins(left, top, right, bottom);
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return option->rect.adjusted(left + 2, top + 2, -(right + 2), -(bottom + 2));
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}
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default:
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return qApp->style()->subElementRect(element, option, widget);
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}
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}
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QSize Style::sizeFromContents(ContentsType type, const QStyleOption *option,
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const QSize &contentsSize, const QWidget *widget) const
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{
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switch (type) {
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case CT_LineEdit: {
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d->createTextBox();
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d->textBox->setElementPrefix("base");
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qreal left, top, right, bottom;
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d->textBox->getMargins(left, top, right, bottom);
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return contentsSize + QSize(left + right + 4, top + bottom + 4);
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}
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default:
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return qApp->style()->sizeFromContents(type, option, contentsSize, widget);
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}
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}
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}
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#include "style_p.moc"
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