mirror of
https://github.com/subsurface/subsurface.git
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f0da41c937
Keys up and down to increase / decrease stars and also fixed focus policy for it. Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
147 lines
3 KiB
C++
147 lines
3 KiB
C++
#include "starwidget.h"
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#include <QSvgRenderer>
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#include <QPainter>
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#include <QPaintEvent>
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#include <QDebug>
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#include <QMouseEvent>
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#include <unistd.h>
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#include <QStyle>
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#include <QStyleOption>
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QPixmap* StarWidget::activeStar = 0;
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QPixmap* StarWidget::inactiveStar = 0;
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QPixmap StarWidget::starActive()
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{
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return (*activeStar);
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}
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QPixmap StarWidget::starInactive()
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{
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return (*inactiveStar);
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}
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int StarWidget::currentStars() const
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{
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return current;
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}
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void StarWidget::mouseReleaseEvent(QMouseEvent* event)
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{
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if (readOnly) {
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return;
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}
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int starClicked = event->pos().x() / IMG_SIZE + 1;
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if (starClicked > TOTALSTARS)
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starClicked = TOTALSTARS;
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if (current == starClicked)
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current -= 1;
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else
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current = starClicked;
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Q_EMIT valueChanged(current);
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update();
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}
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void StarWidget::paintEvent(QPaintEvent* event)
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{
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QPainter p(this);
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for(int i = 0; i < current; i++)
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p.drawPixmap(i * IMG_SIZE + SPACING, 0, starActive());
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for(int i = current; i < TOTALSTARS; i++)
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p.drawPixmap(i * IMG_SIZE + SPACING, 0, starInactive());
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if(hasFocus()){
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QStyleOptionFocusRect option;
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option.initFrom(this);
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option.backgroundColor = palette().color(QPalette::Background);
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style()->drawPrimitive(QStyle::PE_FrameFocusRect, &option, &p, this);
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}
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}
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void StarWidget::setCurrentStars(int value)
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{
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current = value;
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update();
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Q_EMIT valueChanged(current);
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}
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StarWidget::StarWidget(QWidget* parent, Qt::WindowFlags f):
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QWidget(parent, f),
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current(0),
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readOnly(false)
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{
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if (!activeStar) {
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activeStar = new QPixmap();
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QSvgRenderer render(QString(":star"));
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QPixmap renderedStar(IMG_SIZE, IMG_SIZE);
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renderedStar.fill(Qt::transparent);
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QPainter painter(&renderedStar);
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render.render(&painter, QRectF(0, 0, IMG_SIZE, IMG_SIZE));
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(*activeStar) = renderedStar;
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}
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if (!inactiveStar) {
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inactiveStar = new QPixmap();
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(*inactiveStar) = grayImage(activeStar);
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}
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setFocusPolicy(Qt::StrongFocus);
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}
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QPixmap StarWidget::grayImage(QPixmap* coloredImg)
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{
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QImage img = coloredImg->toImage();
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for (int i = 0; i < img.width(); ++i) {
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for (int j = 0; j < img.height(); ++j) {
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QRgb rgb = img.pixel(i, j);
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if (!rgb)
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continue;
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QColor c(rgb);
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int gray = (c.red() + c.green() + c.blue()) / 3;
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img.setPixel(i, j, qRgb(gray, gray, gray));
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}
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}
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return QPixmap::fromImage(img);
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}
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QSize StarWidget::sizeHint() const
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{
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return QSize(IMG_SIZE * TOTALSTARS + SPACING * (TOTALSTARS-1), IMG_SIZE);
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}
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void StarWidget::setReadOnly(bool r)
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{
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readOnly = r;
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}
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void StarWidget::focusInEvent(QFocusEvent* event)
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{
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setFocus();
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QWidget::focusInEvent(event);
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}
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void StarWidget::focusOutEvent(QFocusEvent* event)
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{
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QWidget::focusOutEvent(event);
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}
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void StarWidget::keyPressEvent(QKeyEvent* event)
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{
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if (event->key() == Qt::Key_Up || event->key() == Qt::Key_Right){
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if (currentStars() < TOTALSTARS){
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setCurrentStars( currentStars()+1);
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}
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}else if(event->key() == Qt::Key_Down || event->key() == Qt::Key_Left){
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if(currentStars() > 0){
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setCurrentStars( currentStars()-1);
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}
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}
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}
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