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//////////////////////////////////////////////////////////////////////////
//
// pgAdmin III - PostgreSQL Tools
//
// Portions Copyright (C) 1998 - 2011, Julian Smart
// Portions Copyright (C) 2011 - 2014, The pgAdmin Development Team
// This software is released under the PostgreSQL Licence
//
// canvas.h - wxShapeCanvas
//
//////////////////////////////////////////////////////////////////////////
#ifndef _OGL_CANVAS_H_
#define _OGL_CANVAS_H_
// Drag states
#define NoDragging 0
#define StartDraggingLeft 1
#define ContinueDraggingLeft 2
#define StartDraggingRight 3
#define ContinueDraggingRight 4
#ifdef __WXMSW__
#define OGL_USE_BUFFERED_PAINT 1
#else
#define OGL_USE_BUFFERED_PAINT 0
#endif
extern const wxChar *wxShapeCanvasNameStr;
// When drag_count reaches 0, process drag message
class wxDiagram;
class wxShapeCanvas: public wxScrolledWindow
{
DECLARE_DYNAMIC_CLASS(wxShapeCanvas)
public:
wxShapeCanvas(wxWindow *parent = NULL, wxWindowID id = -1,
const wxPoint &pos = wxDefaultPosition,
const wxSize &size = wxDefaultSize,
long style = wxBORDER | wxRETAINED,
const wxString &name = wxShapeCanvasNameStr);
~wxShapeCanvas();
inline void SetDiagram(wxDiagram *diag)
{
m_shapeDiagram = diag;
}
inline wxDiagram *GetDiagram() const
{
return m_shapeDiagram;
}
virtual void OnLeftClick(double x, double y, int keys = 0);
virtual void OnRightClick(double x, double y, int keys = 0);
virtual void OnDragLeft(bool draw, double x, double y, int keys = 0); // Erase if draw false
virtual void OnBeginDragLeft(double x, double y, int keys = 0);
virtual void OnEndDragLeft(double x, double y, int keys = 0);
virtual void OnDragRight(bool draw, double x, double y, int keys = 0); // Erase if draw false
virtual void OnBeginDragRight(double x, double y, int keys = 0);
virtual void OnEndDragRight(double x, double y, int keys = 0);
// Find object for mouse click, of given wxClassInfo (NULL for any type).
// If notImage is non-NULL, don't find an object that is equal to or a descendant of notImage
virtual wxShape *FindShape(double x, double y, int *attachment, wxClassInfo *info = NULL, wxShape *notImage = NULL);
wxShape *FindFirstSensitiveShape(double x, double y, int *new_attachment, int op);
wxShape *FindFirstSensitiveShape1(wxShape *image, int op);
// Redirect to wxDiagram object
virtual void AddShape(wxShape *object, wxShape *addAfter = NULL);
virtual void InsertShape(wxShape *object);
virtual void RemoveShape(wxShape *object);
virtual bool GetQuickEditMode();
virtual void Redraw(wxDC &dc);
void Snap(double *x, double *y);
// Returns the current scroll position
wxPoint GetCurrentPixelScrollPosition();
void ResetDragState()
{
m_dragState = NoDragging;
}
#if OGL_USE_BUFFERED_PAINT
/// Recreate buffer bitmap if necessary
bool RecreateBuffer(const wxSize &size = wxDefaultSize);
#endif
virtual void DrawBackground(wxDC &dc, bool transformed = FALSE);
// Events
void OnPaint(wxPaintEvent &event);
void OnMouseEvent(wxMouseEvent &event);
void OnEraseBackground(wxEraseEvent &event);
protected:
wxDiagram *m_shapeDiagram;
int m_dragState;
double m_oldDragX, m_oldDragY; // Previous drag coordinates
double m_firstDragX, m_firstDragY; // INITIAL drag coordinates
bool m_checkTolerance; // Whether to check drag tolerance
wxShape *m_draggedShape;
int m_draggedAttachment;
#if OGL_USE_BUFFERED_PAINT
/// Buffer bitmap
wxBitmap m_bufferBitmap;
#endif
DECLARE_EVENT_TABLE()
};
#endif
// _OGL_CANVAS_H_
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