76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
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#include "previewosd.h"
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#include <QHash>
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#include <QPainter>
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static QHash<QString, PreviewOsd*> _instances;
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/*************** PreviewOsdItem ***************/
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PreviewOsdItem::PreviewOsdItem(int width, int height) : QImage(width, height, QImage::Format_ARGB32)
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{
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_xlocation = 0.0;
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_ylocation = 0.0;
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}
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void PreviewOsdItem::setLocation(double x, double y)
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{
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_xlocation = x;
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_ylocation = y;
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}
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/*************** PreviewOsd ***************/
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PreviewOsd::PreviewOsd()
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{
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newItem(50, 50)->fill(0x88888888);
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}
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PreviewOsd::~PreviewOsd()
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{
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for (int i = 0; i < _items.size(); i++)
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{
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delete _items[i];
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}
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}
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PreviewOsd* PreviewOsd::getInstance(QString name)
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{
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if (_instances.contains(name))
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{
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return _instances[name];
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}
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else
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{
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PreviewOsd* instance = new PreviewOsd();
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_instances.insert(name, instance);
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return instance;
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}
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}
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PreviewOsdItem* PreviewOsd::newItem(int width, int height)
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{
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PreviewOsdItem* item = new PreviewOsdItem(width, height);
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_items.append(item);
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return item;
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}
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PreviewOsdItem* PreviewOsd::newItem(QImage image)
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{
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PreviewOsdItem* item = newItem(image.width(), image.height());
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QPainter painter(item);
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painter.drawImage(0, 0, image);
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return item;
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}
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void PreviewOsd::apply(QImage* mask, double xoffset, double yoffset, double scaling)
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{
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QPainter painter(mask);
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for (int i = 0; i < _items.size(); i++)
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{
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PreviewOsdItem* item = _items[i];
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int x = (int)(mask->width() / 2 - (xoffset - item->xlocation()) / scaling - item->width() / 2);
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int y = (int)(mask->height() / 2 - (yoffset - item->ylocation()) / scaling - item->height() / 2);
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painter.drawImage(x, y, *item);
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}
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}
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