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/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/
#ifndef QG_GRAPHICVIEW_H
#define QG_GRAPHICVIEW_H
#include <QWidget>
#include "rs_graphicview.h"
#include "rs_layerlistlistener.h"
#include "rs_blocklistlistener.h"
class QGridLayout;
class QLabel;
class QG_ScrollBar;
/**
* This is the Qt implementation of a widget which can view a
* graphic.
*
* Instances of this class can be linked to layer lists using
* addLayerListListener().
*/
class QG_GraphicView: public QWidget,
public RS_GraphicView,
public RS_LayerListListener,
public RS_BlockListListener {
Q_OBJECT
public:
QG_GraphicView(QWidget* parent=0, const char* name=0, Qt::WindowFlags f=0);
virtual ~QG_GraphicView();
virtual int getWidth();
virtual int getHeight();
virtual void redraw(RS2::RedrawMethod method=RS2::RedrawAll);
virtual void adjustOffsetControls();
virtual void adjustZoomControls();
virtual void setBackground(const RS_Color& bg);
virtual void setMouseCursor(RS2::CursorType c);
virtual void updateGridStatusWidget(const QString& text);
virtual QPixmap* getPixmapForView(QPixmap *pm);
// Methods from RS_LayerListListener Interface:
virtual void layerEdited(RS_Layer*) {
redraw(RS2::RedrawDrawing);
}
virtual void layerRemoved(RS_Layer*) {
redraw(RS2::RedrawDrawing);
}
virtual void layerToggled(RS_Layer*) {
redraw(RS2::RedrawDrawing);
}
/**
* @brief setOffset
* @param ox, offset X
* @param oy, offset Y
*/
virtual void setOffset(int ox, int oy);
protected:
virtual void emulateMouseMoveEvent();
virtual void mousePressEvent(QMouseEvent* e);
virtual void mouseDoubleClickEvent(QMouseEvent* e);
virtual void mouseReleaseEvent(QMouseEvent* e);
virtual void mouseMoveEvent(QMouseEvent* e);
virtual void tabletEvent(QTabletEvent* e);
virtual void leaveEvent(QEvent*);
virtual void enterEvent(QEvent*);
virtual void focusInEvent(QFocusEvent*);
virtual void focusOutEvent(QFocusEvent*);
virtual void wheelEvent(QWheelEvent* e);
virtual void keyPressEvent(QKeyEvent* e);
virtual void keyReleaseEvent(QKeyEvent* e);
void paintEvent(QPaintEvent *);
virtual void resizeEvent(QResizeEvent* e);
private slots:
void slotHScrolled(int value);
void slotVScrolled(int value);
protected:
//! Horizontal scrollbar.
QG_ScrollBar* hScrollBar;
//! Vertical scrollbar.
QG_ScrollBar* vScrollBar;
//! Layout used to fit in the view and the scrollbars.
QGridLayout* layout;
//! Label for grid spacing.
QLabel* gridStatus;
//! CAD mouse cursor
QCursor* curCad;
//! Delete mouse cursor
QCursor* curDel;
//! Select mouse cursor
QCursor* curSelect;
//! Magnifying glass mouse cursor
QCursor* curMagnifier;
//! Hand mouse cursor
QCursor* curHand;
// Used for buffering different paint layers
QPixmap *PixmapLayer1; // Used for grids and absolute 0
QPixmap *PixmapLayer2; // Used for teh actual CAD drawing
QPixmap *PixmapLayer3; // USed for crosshair and actionitems
RS2::RedrawMethod redrawMethod;
};
#endif
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