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kdeplasma-addons: create kolourpicket applet icon without QIconEngine reimplementation

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functionally the same except that it is not bound to the QIconEngine class
and if QIconEngine changes it does not have to be adjusted

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2023-08-08 12:20:50 +03:00
parent 2b8f0ec06e
commit b9106628cd
1 changed files with 32 additions and 66 deletions
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98
kdeplasma-addons/applets/kolourpicker/kolourpicker.cpp
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@ -17,7 +17,6 @@
#include <qgraphicssceneevent.h>
#include <qgraphicslinearlayout.h>
#include <qicon.h>
#include <qiconengine.h>
#include <qimage.h>
#include <qmimedata.h>
#include <qpainter.h>
@ -90,61 +89,6 @@ static QColor pickColor(const QPoint &point)
#endif
}
class ColorIconEngine : public QIconEngine
{
public:
ColorIconEngine(const QColor &color);
virtual void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state);
virtual QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state);
virtual QIconEngine *clone() const;
public:
QColor m_color;
};
ColorIconEngine::ColorIconEngine(const QColor &color)
: m_color(color)
{
}
void ColorIconEngine::paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state)
{
Q_UNUSED(mode)
Q_UNUSED(state)
painter->setPen(Qt::NoPen);
painter->setBrush(m_color);
painter->drawEllipse(rect);
}
QPixmap ColorIconEngine::pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state)
{
QPixmap pix(size);
pix.fill(QColor(0,0,0,0));
QPainter p(&pix);
p.setRenderHint(QPainter::Antialiasing, true);
paint(&p, pix.rect(), mode, state);
p.end();
return pix;
}
QIconEngine* ColorIconEngine::clone() const
{
return new ColorIconEngine(m_color);
}
class ColorIcon : public QIcon
{
public:
ColorIcon(const QColor &color);
};
ColorIcon::ColorIcon(const QColor &color)
: QIcon(new ColorIconEngine(color))
{
}
class ColorButton : public Plasma::ToolButton
{
Q_OBJECT
@ -152,6 +96,7 @@ public:
ColorButton(QGraphicsWidget *parent);
void setColor(const QColor &color);
QIcon colorIcon() const;
protected:
void resizeEvent(QGraphicsSceneResizeEvent *event) final;
@ -162,27 +107,51 @@ protected:
void mouseMoveEvent(QGraphicsSceneMouseEvent *event) final;
private:
void updateColorPixmap();
QColor m_color;
QPixmap m_colorpix;
QPointF m_dragstartpos;
};
ColorButton::ColorButton(QGraphicsWidget *parent)
: Plasma::ToolButton(parent)
{
setAcceptDrops(true);
Plasma::ToolButton::setAcceptDrops(true);
}
void ColorButton::setColor(const QColor &color)
{
m_color = color;
updateColorPixmap();
Plasma::ToolButton::setIcon(colorIcon());
}
QIcon ColorButton::colorIcon() const
{
return QIcon(m_colorpix);
}
void ColorButton::updateColorPixmap()
{
const QSizeF sizef = Plasma::ToolButton::size();
const int minsize = qRound(qMin(sizef.width(), sizef.height())) - 4;
m_colorpix = QPixmap(QSize(minsize, minsize));
m_colorpix.fill(QColor(Qt::transparent));
QPainter p(&m_colorpix);
p.setRenderHint(QPainter::Antialiasing, true);
p.setPen(Qt::NoPen);
p.setBrush(m_color);
p.drawEllipse(m_colorpix.rect());
p.end();
}
void ColorButton::resizeEvent(QGraphicsSceneResizeEvent *event)
{
const QSizeF sizef = size();
const int minsize = qRound(qMin(sizef.width(), sizef.height())) - 4;
nativeWidget()->setIconSize(QSize(minsize, minsize));
Plasma::ToolButton::resizeEvent(event);
updateColorPixmap();
Plasma::ToolButton::nativeWidget()->setIconSize(m_colorpix.size());
Plasma::ToolButton::setIcon(colorIcon());
}
void ColorButton::dragEnterEvent(QGraphicsSceneDragDropEvent *event)
@ -257,7 +226,7 @@ Kolourpicker::Kolourpicker(QObject *parent, const QVariantList &args)
m_configAndHistory->setMinimumSize(20, 20);
mainlay->addItem(m_configAndHistory);
m_configAndHistory->nativeWidget()->setIcon(ColorIcon(Qt::gray));
m_configAndHistory->setColor(QColor(Qt::gray));
m_configAndHistory->nativeWidget()->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
connect(m_configAndHistory, SIGNAL(clicked()), this, SLOT(historyClicked()));
@ -444,8 +413,7 @@ void Kolourpicker::colorActionTriggered(QAction *act)
void Kolourpicker::clearHistory(bool save)
{
m_configAndHistory->nativeWidget()->setIcon(ColorIcon(Qt::gray));
m_configAndHistory->setColor(Qt::gray);
m_configAndHistory->setColor(QColor(Qt::gray));
QHash<QColor, QAction *>::ConstIterator it = m_menus.constBegin(), itEnd = m_menus.constEnd();
for (; it != itEnd; ++it ) {
m_configAndHistoryMenu->removeAction(*it);
@ -467,8 +435,6 @@ void Kolourpicker::installFilter()
void Kolourpicker::addColor(const QColor &color, bool save)
{
ColorIcon colorIcon(color);
m_configAndHistory->nativeWidget()->setIcon(colorIcon);
m_configAndHistory->setColor(color);
QHash<QColor, QAction *>::ConstIterator it = m_menus.constFind(color);
@ -477,7 +443,7 @@ void Kolourpicker::addColor(const QColor &color, bool save)
}
KMenu *newmenu = buildMenuForColor(color);
QAction *act = newmenu->menuAction();
act->setIcon(colorIcon);
act->setIcon(m_configAndHistory->colorIcon());
act->setText(QString("%1, %2, %3").arg(color.red()).arg(color.green()).arg(color.blue()));
connect(newmenu, SIGNAL(triggered(QAction*)), this, SLOT(colorActionTriggered(QAction*)));
m_configAndHistoryMenu->insertMenu(m_configAndHistoryMenu->actions().at(1), newmenu);