moz-skia/debugger/QT/SkCanvasWidget.h

/*
 * Copyright 2012 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */


#ifndef SKCANVASWIDGET_H_
#define SKCANVASWIDGET_H_

#include <QWidget>
#include <QHBoxLayout>
#include "SkStream.h"
#include "SkRasterWidget.h"
#include "SkGLWidget.h"
#include "SkDebugger.h"

class SkCanvasWidget : public QWidget {
    Q_OBJECT

public:
    SkCanvasWidget(QWidget* parent, SkDebugger* debugger);

    ~SkCanvasWidget();

    enum WidgetType {
        kRaster_8888_WidgetType = 1 << 0,
        kGPU_WidgetType         = 1 << 1,
    };

    void drawTo(int index);

    void setWidgetVisibility(WidgetType type, bool isHidden);

    void zoom(float zoomIncrement);

    void resetWidgetTransform();

signals:
    void scaleFactorChanged(float newScaleFactor);
    void commandChanged(int newCommand);
    void hitChanged(int hit);

private slots:
    void keyZoom(int zoomIncrement) {
        zoom(zoomIncrement);
    }

private:
    QHBoxLayout fHorizontalLayout;
    SkRasterWidget fRasterWidget;
    SkGLWidget fGLWidget;
    SkDebugger* fDebugger;
    SkIPoint fPreviousPoint;
    SkIPoint fUserOffset;
    float fUserScaleFactor;

    void mouseMoveEvent(QMouseEvent* event);

    void mousePressEvent(QMouseEvent* event);

    void mouseDoubleClickEvent(QMouseEvent* event);

    void wheelEvent(QWheelEvent* event) {
        zoom(event->delta()/120);
    }
};


#endif /* SKCANVASWIDGET_H_ */