55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
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#include "ImageSwitch.h"
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#include <qpainter.h>
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#include <qdebug.h>
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namespace{
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const int DEFAULT_WIDTH = 100;
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const int DEFAULT_HEIGHT = 50;
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const char * const OFF_FILE_PATH = ":/icons/imageswitch/btncheckoff1.png";
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const char * const ON_FILE_PATH = ":/icons/imageswitch/btncheckon1.png";
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}
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ImageSwitch::ImageSwitch(QWidget* parent)
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: QWidget(parent)
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, mIsChecked(false)
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, mImgOffFile(OFF_FILE_PATH)
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, mImgOnFile(ON_FILE_PATH)
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{
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this->resize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
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this->setMinimumSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
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}
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void ImageSwitch::mousePressEvent(QMouseEvent*)
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{
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mIsChecked = !mIsChecked;
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this->update();
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emit clicked();
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}
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void ImageSwitch::paintEvent(QPaintEvent*)
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{
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QPainter painter(this);
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painter.setRenderHints(QPainter::SmoothPixmapTransform);
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QImage img(mIsChecked ? mImgOffFile : mImgOnFile);
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img = img.scaled(this->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
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//按照比例自动居中绘制
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int pixX = rect().center().x() - img.width() / 2;
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int pixY = rect().center().y() - img.height() / 2;
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QPoint point(pixX, pixY);
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painter.drawImage(point, img);
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}
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bool ImageSwitch::getChecked() const
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{
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return mIsChecked;
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}
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void ImageSwitch::setChecked(bool value) {
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if (this->mIsChecked == value) return;
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this->mIsChecked = value;
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this->update();
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}
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