Бычков Андрей
ba8bc27298
git-svn-id: svn://db.shs.com.ru/libs@1 a8b55f48-bf90-11e4-a774-851b48703e85
113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
#include "colorbutton.h"
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#include <QDebug>
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#include <QDrag>
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#include <QMimeData>
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ColorButton::ColorButton(QWidget * parent): QPushButton(parent) {
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frame = false;
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options = QColorDialog::ShowAlphaChannel;
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back = new QWidget(this);
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back->setAutoFillBackground(true);
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back->show();
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pal = back->palette();
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pal.setBrush(back->backgroundRole(), QBrush(QImage(":/icons/alpha.png")));
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back->setPalette(pal);
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label = new QFrame(this);
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label->setAutoFillBackground(true);
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label->setFrameStyle(QFrame::Panel | QFrame::Sunken);
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label->show();
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pal = label->palette();
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menu.addAction(QIcon(":/icons/edit-copy.png"), tr("Copy"), this, SLOT(copy()));
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menu.addAction(QIcon(":/icons/edit-paste.png"), tr("Paste"), this, SLOT(paste()));
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menu.addSeparator();
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menu.addAction(tr("Mix with clipboard"), this, SLOT(mix()));
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setAcceptDrops(true);
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connect(this, SIGNAL(clicked(bool)), this, SLOT(clicked()));
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}
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ColorButton::~ColorButton() {
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delete label;
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}
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void ColorButton::resizeEvent(QResizeEvent * ) {
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if (frame) back->setGeometry(rect());
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else back->setGeometry(8, 5, width() - 16, height() - 12);
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label->setGeometry(back->geometry());
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}
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void ColorButton::mousePressEvent(QMouseEvent * e) {
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pp = e->pos();
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if (e->buttons().testFlag(Qt::RightButton)) {
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menu.popup(e->globalPos());
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return;
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}
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QPushButton::mousePressEvent(e);
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}
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void ColorButton::mouseMoveEvent(QMouseEvent * e) {
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if (e->buttons().testFlag(Qt::LeftButton)) {
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if ((e->pos() - pp).manhattanLength() > QApplication::startDragDistance()) {
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setDown(false);
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QDrag * drag = new QDrag(this);
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QMimeData * data = new QMimeData();
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data->setColorData(color());
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drag->setMimeData(data);
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drag->exec(Qt::CopyAction);
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return;
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}
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}
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QPushButton::mouseMoveEvent(e);
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}
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void ColorButton::dragEnterEvent(QDragEnterEvent * e) {
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e->accept();
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QPushButton::dragEnterEvent(e);
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}
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void ColorButton::dropEvent(QDropEvent * e) {
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const QMimeData * data = e->mimeData();
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QColor c = qvariant_cast<QColor>(data->colorData());
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if (c.isValid()) {
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setColor(c);
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return;
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}
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c = QColor(data->text());
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if (c.isValid()) {
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setColor(c);
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return;
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}
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QPushButton::dropEvent(e);
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}
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void ColorButton::clicked() {
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QColor ret = QColorDialog::getColor(color(), this, tr("Choose color"), options);
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if (!ret.isValid()) return;
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setColor(ret);
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}
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void ColorButton::mix() {
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QColor c(QApplication::clipboard()->text());
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if (!c.isValid()) return;
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QColor sc = color();
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setColor(QColor((c.red() + sc.red()) / 2, (c.green() + sc.green()) / 2, (c.blue() + sc.blue()) / 2, (c.alpha() + sc.alpha()) / 2));
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}
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void ColorButton::setColor(const QColor & col) {
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if (pal.color(label->backgroundRole()) == col) return;
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if (options.testFlag(QColorDialog::ShowAlphaChannel))
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pal.setColor(label->backgroundRole(), col);
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else
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pal.setColor(label->backgroundRole(), QColor(col.red(), col.green(), col.blue()));
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label->setPalette(pal);
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emit colorChanged(color());
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}
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