_much_ more complete version of the PushButton widget, also fully documented
svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=696541
This commit is contained in:
Matt Broadstone
parent
f74b94a1d5
commit
2a2348b0e4
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@ -1,5 +1,6 @@
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/*
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* Copyright (C) 2007 by Siraj Razick siraj@kde.org
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* Copyright (C) 2007 by Siraj Razick <siraj@kde.org>
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* Copyright (C) 2007 by Matt Broadstone <mbroadst@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 version 2 as
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@ -18,8 +19,8 @@
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#include "pushbutton.h"
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#include <QStyleOptionFrameV2>
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#include <QStyleOption>
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#include <QStylePainter>
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#include <QStyleOptionButton>
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#include <QStyle>
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#include <QWidget>
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#include <QPainter>
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@ -27,47 +28,139 @@
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#include <QFontMetricsF>
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#include <QApplication>
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#include "pushbutton.moc"
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namespace Plasma
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{
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class PushButton::Private
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{
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public:
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Private() {}
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~Private() {}
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public:
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enum ButtonShape
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{
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Rectangle = 0,
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Round,
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Custom
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};
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QString labelText;
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QString labelIcon;
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QColor labelTextColor;
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QIcon icon;
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QSize iconSize;
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bool hasIcon;
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int labelTextOpacity;
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int radius;
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QTimer *updateTimer;
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PushButton::ButtonState state;
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enum ButtonState
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{
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None,
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Hover,
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Pressed,
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Released
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};
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public:
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Private()
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: flat(false),
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state(None)
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{}
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void init(PushButton *button);
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void initStyleOption(QStyleOptionButton *option, const PushButton *button,
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const QStyleOptionGraphicsItem *graphicsOption = 0 ) const;
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QString text;
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KIcon icon;
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QSizeF iconSize;
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QSizeF size;
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bool flat;
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ButtonState state;
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};
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void PushButton::Private::init(PushButton *button)
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{
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button->setAcceptedMouseButtons(Qt::LeftButton);
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button->setAcceptsHoverEvents(true);
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button->setEnabled(true);
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}
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void PushButton::Private::initStyleOption(QStyleOptionButton *option, const PushButton *button,
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const QStyleOptionGraphicsItem *graphicsOption) const
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{
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option->state = QStyle::State_None;
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if (button->isEnabled()) {
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option->state |= QStyle::State_Enabled;
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}
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if (button->hasFocus()) {
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option->state |= QStyle::State_HasFocus;
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}
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if (state == Private::Hover) {
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option->state |= QStyle::State_MouseOver;
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}
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if (graphicsOption) {
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option->palette = graphicsOption->palette;
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option->fontMetrics = graphicsOption->fontMetrics;
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option->rect = graphicsOption->rect;
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} else {
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option->palette = QApplication::palette(); // pretty good guess
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option->fontMetrics = QApplication::fontMetrics(); // hrm
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}
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option->features = QStyleOptionButton::None;
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if (flat) {
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option->features |= QStyleOptionButton::Flat;
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}
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if (!flat && !(state == Private::Pressed)) {
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option->state |= QStyle::State_Raised;
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} else {
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option->state |= QStyle::State_Sunken;
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}
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option->text = text;
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option->icon = icon;
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option->iconSize = button->iconSize().toSize();
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}
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PushButton::PushButton(Widget *parent)
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: Plasma::Widget(parent),
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d(new Private)
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{
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setAcceptedMouseButtons(Qt::LeftButton);
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setAcceptsHoverEvents(true);
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setEnabled(true);
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d->init(this);
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}
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resize(40.0f, 100.0f);
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setPos(QPointF(0.0,0.0));
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PushButton::PushButton(const QString &text, Widget *parent)
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: Plasma::Widget(parent),
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d(new Private)
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{
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d->init(this);
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setText(text);
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}
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/*FIXME: Don't use hardcoded strings and colors. */
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PushButton::PushButton(const KIcon &icon, const QString &text, Widget *parent)
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: Plasma::Widget(parent),
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d(new Private)
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{
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d->init(this);
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setText(text);
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setIcon(icon);
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}
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d->state = PushButton::None;
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d->labelText = QString("Plasma");
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d->labelTextColor = QColor(201, 201, 255);
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d->hasIcon = false;
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d->iconSize = QSize(32,32);
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QRectF PushButton::boundingRect() const
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{
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if (!d->size.isValid()) {
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int width = 0;
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int height = 0;
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QStyleOptionButton option;
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d->initStyleOption(&option, this);
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if (!icon().isNull()) {
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height += qMax(option.iconSize.height(), height);
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width += 2 + option.iconSize.width() + 2; // add margin
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}
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QString display(option.text);
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if (display.isEmpty())
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display = "Plasma";
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QSize textSize = option.fontMetrics.size(Qt::TextShowMnemonic, display);
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width += textSize.width();
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height = qMax(height, textSize.height());
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d->size = QSizeF((QApplication::style()->sizeFromContents(QStyle::CT_PushButton, &option, QSize(width, height), 0).
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expandedTo(QApplication::globalStrut())));
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}
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return QRectF(QPointF(0.0, 0.0), d->size);
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}
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PushButton::~PushButton()
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@ -75,112 +168,99 @@ PushButton::~PushButton()
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delete d;
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}
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void PushButton::updated(const QString&, const DataEngine::Data &data)
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void PushButton::paintWidget(QPainter *painter, const QStyleOptionGraphicsItem *opt, QWidget *widget)
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{
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Q_UNUSED(data)
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}
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QStyleOptionButton option;
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option.initFrom(widget);
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d->initStyleOption(&option, this, opt);
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void PushButton::paintWidget(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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QStyleOptionButton options;
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options.initFrom(widget);
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options.state = option->state;
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options.state |= isDown() ? QStyle::State_Sunken : QStyle::State_Raised;
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options.rect = boundingRect().toRect();
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options.text = text();
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if (d->hasIcon)
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{
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options.icon= d->icon;
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options.iconSize = d->iconSize;
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}
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widget->style()->drawPrimitive(QStyle::PE_PanelButtonCommand, &options, painter, widget);
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widget->style()->drawPrimitive(QStyle::PE_FrameFocusRect, &options, painter, widget);
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widget->style()->drawControl(QStyle::CE_PushButton, &options, painter, widget);
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widget->style()->drawPrimitive(QStyle::PE_PanelButtonCommand, &option, painter, widget);
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widget->style()->drawPrimitive(QStyle::PE_FrameFocusRect, &option, painter, widget);
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widget->style()->drawControl(QStyle::CE_PushButton, &option, painter, widget);
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}
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void PushButton::setText(const QString& text)
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{
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d->labelText = text;
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/*
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QFont * font = new QFont (text);
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QFontMetrics * fm = new QFontMetrics(*font);
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if (fm->width(text) >= d->width)
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setWidth(fm->width(d->labelText) + 4);
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delete fm;
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delete font;
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*/
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d->text = text;
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d->size = QSizeF();
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update();
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}
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QString PushButton::text() const
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{
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return d->labelText;
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return d->text;
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}
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void PushButton::setIcon(const QString& path)
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void PushButton::setIcon(const KIcon &icon)
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{
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if (!path.isNull())
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{
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QPixmap iconPixmap(path);
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d->icon = QIcon(iconPixmap);
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d->iconSize = iconPixmap.size();
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d->hasIcon=true;
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}
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else
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d->hasIcon = false;
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d->icon = icon;
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d->size = QSizeF();
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update();
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}
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bool PushButton::isDown()
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void PushButton::setIcon(const QString &path)
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{
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if (d->state == PushButton::Pressed)
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return true;
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return false;
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KIcon icon(path);
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setIcon(icon);
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}
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KIcon PushButton::icon() const
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{
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return d->icon;
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}
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QSizeF PushButton::iconSize() const
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{
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if (d->iconSize.isValid())
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return d->iconSize;
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qreal metric = qreal(QApplication::style()->pixelMetric(QStyle::PM_ButtonIconSize));
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return QSizeF(metric, metric);
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}
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void PushButton::setIconSize(const QSizeF &size)
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{
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if (d->iconSize == size)
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return;
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d->iconSize = size;
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d->size = QSizeF();
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update();
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}
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bool PushButton::isDown() const
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{
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return (d->state == Private::Pressed);
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}
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bool PushButton::isFlat() const
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{
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return d->flat;
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}
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void PushButton::setFlat(bool flat)
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{
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d->flat = flat;
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update();
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}
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void PushButton::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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event->accept();
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d->state = PushButton::Pressed;
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d->state = Private::Pressed;
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update();
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// emit clicked();
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}
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void PushButton::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
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{
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event->accept();
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if (d->state == PushButton::Pressed)
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if (d->state == Private::Pressed)
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emit clicked();
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d->state = PushButton::Released;
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d->state = Private::Released;
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update();
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}
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QSizeF PushButton::sizeHint() const
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{
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return minimumSize();
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}
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QSizeF PushButton::minimumSize() const
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{
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QFontMetricsF m = qApp->fontMetrics();
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return m.boundingRect(text()).size() + QSizeF(5.0f, 5.0f);
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}
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QSizeF PushButton::maximumSize() const
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{
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return QSizeF();
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}
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Qt::Orientations PushButton::expandingDirections() const
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{
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return Qt::Horizontal;
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}
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bool PushButton::isEmpty() const
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{
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return false;
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}
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} // namespace Plasma
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#include "pushbutton.moc"
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@ -1,6 +1,7 @@
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/*
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* Copyright (C) 2007 by Siraj Razick siraj@kde.org
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* and Matias Valdenegro <mvaldenegro@informatica.utem.cl>
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* Copyright (C) 2007 by Siraj Razick <siraj@kde.org>
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* Copyright (C) 2007 by Matias Valdenegro <mvaldenegro@informatica.utem.cl>
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* Copyright (C) 2007 by Matt Broadstone <mbroadst@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 version 2 as
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@ -16,7 +17,6 @@
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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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#ifndef PUSHBUTTON_H
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#define PUSHBUTTON_H
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@ -24,120 +24,131 @@
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#include <QtGui/QGraphicsTextItem>
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#include <QtGui/QLayoutItem>
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#include <KIcon>
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#include <plasma/dataengine.h>
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#include <plasma/widgets/widget.h>
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#include <plasma/plasma_export.h>
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class QStyleOptionButton;
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namespace Plasma
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{
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/**
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* Class that emulates a QPushButton inside Plasma
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*
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* @author Siraj Razick and Matias Valdenegro.
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* @author Siraj Razick
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* @author Matias Valdenegro
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* @author Matt Broadstone
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*
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*
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*/
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class PLASMA_EXPORT PushButton : public Plasma::Widget
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{
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Q_OBJECT
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Q_ENUMS( ButtonShape )
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Q_ENUMS( ButtonState )
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Q_PROPERTY( QString text READ text WRITE setText )
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Q_PROPERTY( QString icon WRITE setIcon )
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Q_PROPERTY( QSizeF iconSize READ iconSize WRITE setIconSize )
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Q_PROPERTY( KIcon icon READ icon WRITE setIcon )
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public:
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/**
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* Creates a new Plasma::PushButton.
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* @param parent the Widge this button is parented to.
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*/
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explicit PushButton(Widget *parent = 0);
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public:
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enum ButtonShape
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{
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Rectangle = 0,
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Round,
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Custom
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};
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/**
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* Creates a new Plasma::PushButton with a text label.
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* @param text the text to display next to the button.
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* @param parent the QGraphicsItem this icon is parented to.
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*/
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explicit PushButton(const QString &text, Widget *parent = 0);
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enum ButtonState
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{
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None,
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Hover,
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Pressed,
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Released
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};
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/**
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* Creates a new Plasma::PushButton with an icon and text
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* @param icon the icon to display with this button.
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* @param text the text to display with this button.
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* @param parent the QGraphicsItem this icon is parented to.
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*/
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explicit PushButton(const KIcon &icon, const QString &text, Widget *parent = 0);
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public:
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/**
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* Destroys this Plasma::PushButton.
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*/
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virtual ~PushButton();
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/**
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* Constructor.
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*/
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PushButton(Widget *parent = 0);
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/**
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* @return text associated with this Plasma::PushButton
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*/
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Q_INVOKABLE QString text() const;
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/**
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* Virtual Destructor.
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*/
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virtual ~PushButton();
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/**
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* Sets the text to be displayed by this button.
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* @param text the text to display
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*/
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Q_INVOKABLE void setText(const QString &text);
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/**
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* Returns the text of this Button.
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*/
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QString text() const;
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/**
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* @return the icon displayed by this button.
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*/
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Q_INVOKABLE KIcon icon() const;
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/**
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* Sets the text of this Button.
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*/
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void setText(const QString &text);
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/**
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* Sets the icon to be displayed by this Plasma::Icon.
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* @param icon the KIcon to display.
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*/
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Q_INVOKABLE void setIcon(const KIcon &icon);
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/**
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* Sets the icon of this Button.
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* @param path Path to the icon file. TODO : WTF is path?
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*/
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void setIcon(const QString& path);
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/**
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* Convenience method to set the icon of this Plasma::PushButton
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* based on the icon path, or name.
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* @see KIconLoader
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* @param path the path to, or name of the icon to display.
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*/
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Q_INVOKABLE void setIcon(const QString& path);
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/**
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* Paint function.
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*/
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virtual void paintWidget(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
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/**
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* @return the size of the icon displayed by this Plasma::PushButton.
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*/
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Q_INVOKABLE QSizeF iconSize() const;
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/**
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* Reimplemented from Plasma::Widget.
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*/
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virtual QSizeF sizeHint() const ;
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/**
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* Sets the size of icon shown by this button.
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* @param size size of the icon.
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*/
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Q_INVOKABLE void setIconSize(const QSizeF &size);
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/**
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* Reimplemented from Plasma::Widget.
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*/
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virtual QSizeF minimumSize() const;
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/**
|
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* @return whether this button is currently in a down/pressed state.
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*/
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bool isDown() const;
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/**
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* Reimplemented from Plasma::Widget.
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*/
|
||||
virtual QSizeF maximumSize() const ;
|
||||
/**
|
||||
* @return whether this button is drawn flat.
|
||||
*/
|
||||
bool isFlat() const;
|
||||
|
||||
/**
|
||||
* Buttons prefer to expand in Horizontal direction.
|
||||
*/
|
||||
virtual Qt::Orientations expandingDirections() const;
|
||||
/**
|
||||
* Sets whether the button is drawn flat.
|
||||
* @param flat whether to draw it flat or not.
|
||||
*/
|
||||
void setFlat(bool flat);
|
||||
|
||||
/**
|
||||
* TODO: What does this function do?
|
||||
*/
|
||||
virtual bool isEmpty() const;
|
||||
Q_SIGNALS:
|
||||
/**
|
||||
* Triggered when the button has been clicked.
|
||||
*/
|
||||
void clicked();
|
||||
|
||||
Q_SIGNALS:
|
||||
protected:
|
||||
void mousePressEvent(QGraphicsSceneMouseEvent *event);
|
||||
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
|
||||
|
||||
/**
|
||||
* Triggers whatever this button is clicked.
|
||||
*/
|
||||
void clicked();
|
||||
void paintWidget(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
|
||||
QRectF boundingRect() const;
|
||||
|
||||
public Q_SLOTS:
|
||||
void updated(const QString&, const DataEngine::Data &);
|
||||
|
||||
protected:
|
||||
bool isDown();
|
||||
void mousePressEvent(QGraphicsSceneMouseEvent *event);
|
||||
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
|
||||
|
||||
private:
|
||||
class Private ;
|
||||
Private * const d;
|
||||
private:
|
||||
class Private ;
|
||||
Private * const d;
|
||||
|
||||
};
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user