Trying to understand wxCanvas.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8812 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/samples/canvas/test/test.h

@@ -0,0 +1,216 @@
+/*
+ * Program: canvas
+ *
+ * Author: Robert Roebling
+ *
+ * Copyright: (C) 1998, Robert Roebling
+ *
+ */
+// For compilers that support precompilation, includes "wx/wx.h".
+
+#ifndef __test_H__
+#define __test_H__
+
+#ifdef __GNUG__
+    #pragma interface "test.cpp"
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/wx.h"
+#endif
+
+#include <wx/image.h>
+#include <wx/file.h>
+#include <wx/timer.h>
+#include <wx/log.h>
+#include <wx/splitter.h>
+
+#include "wx/canvas/canvas.h"
+#include "wx/canvas/polygon.h"
+
+class MyCanvas;
+
+// derived classes
+class MywxCanvasObjectRef: public wxCanvasObjectRef
+{
+    DECLARE_DYNAMIC_CLASS(MywxCanvasObjectRef)
+
+public:
+    MywxCanvasObjectRef();
+    MywxCanvasObjectRef(double x, double y, wxCanvasObjectGroup* group);
+    ~MywxCanvasObjectRef();
+
+    void OnMouseEvent(wxMouseEvent &event);
+
+private:
+    DECLARE_EVENT_TABLE()
+};
+
+
+class MyEventHandler: public wxEvtHandler
+{
+public:
+    MyEventHandler();
+
+    void OnMouseEvent(wxMouseEvent &event);
+
+private:
+
+    DECLARE_EVENT_TABLE()
+};
+
+
+class MySplitterWindow : public wxSplitterWindow
+{
+public:
+  MySplitterWindow(wxFrame *parent, wxWindowID id)
+    : wxSplitterWindow(parent, id, wxDefaultPosition, wxDefaultSize, wxSP_3D | wxSP_LIVE_UPDATE)
+  {
+    m_frame = parent;
+  }
+
+  virtual bool OnSashPositionChange(int newSashPosition)
+  {
+    if ( !wxSplitterWindow::OnSashPositionChange(newSashPosition) )
+      return FALSE;
+
+    wxString str;
+    str.Printf( _T("Sash position = %d"), newSashPosition);
+    m_frame->SetStatusText(str);
+
+    return TRUE;
+  }
+
+  void SetStatusText(const wxString& str ){m_frame->SetStatusText(str);}
+
+private:
+  wxFrame *m_frame;
+};
+
+
+// MyFrame
+const int ID_ABOUT = 109;
+
+// MyFrame
+class MyFrame: public wxFrame
+{
+public:
+    MyFrame(wxFrame* frame, const wxString& title, const wxPoint& pos, const wxSize& size);
+    virtual ~MyFrame();
+
+    // Menu commands
+    void SplitHorizontal(wxCommandEvent& event);
+    void SplitVertical(wxCommandEvent& event);
+    void Unsplit(wxCommandEvent& event);
+    void SetMinSize(wxCommandEvent& event);
+    void Quit(wxCommandEvent& event);
+
+    // Menu command update functions
+    void UpdateUIHorizontal(wxUpdateUIEvent& event);
+    void UpdateUIVertical(wxUpdateUIEvent& event);
+    void UpdateUIUnsplit(wxUpdateUIEvent& event);
+
+    void OnAbout( wxCommandEvent &event );
+    void OnNewFrame( wxCommandEvent &event );
+    void OnQuit( wxCommandEvent &event );
+    void OnTimer( wxTimerEvent &event );
+
+    wxCanvasObject   *m_sm1;
+    wxCanvasObject   *m_sm2;
+    wxCanvasObject   *m_sm3;
+    wxCanvasObject   *m_sm4;
+
+    MywxCanvasObjectRef *m_ref;
+    MywxCanvasObjectRef *m_ref2;
+
+    wxTimer          *m_timer;
+    wxTextCtrl       *m_log;
+
+    wxBitmap gs_bmp36_mono;
+
+private:
+
+    void UpdatePosition();
+
+    wxMenu*    fileMenu;
+    wxMenuBar*  menuBar;
+    MyCanvas*  m_canvas1;
+    MyCanvas*  m_canvas2;
+    MySplitterWindow* m_splitter;
+
+    wxCanvasAdmin m_canvasadmin;
+
+    wxCanvasObjectGroup* m_datatree;
+
+    DECLARE_EVENT_TABLE()
+
+    MyEventHandler* m_eventhandler;
+};
+
+// ID for the menu commands
+enum
+{
+  SPLIT_QUIT,
+  SPLIT_HORIZONTAL,
+  SPLIT_VERTICAL,
+  SPLIT_UNSPLIT,
+  SPLIT_SETMINSIZE
+};
+
+// Window ids
+#define SPLITTER_WINDOW     100
+#define SPLITTER_FRAME      101
+#define CANVAS1             102
+#define CANVAS2             103
+
+class MyCanvas: public wxCanvas
+{
+public:
+    MyCanvas( wxCanvasAdmin* admin, MySplitterWindow *parent, wxWindowID id = -1,
+        const wxPoint& pos = wxDefaultPosition,
+        const wxSize& size = wxDefaultSize,
+        long style = wxScrolledWindowStyle );
+
+    void OnMouseEvent(wxMouseEvent& event);
+
+private:
+
+    //mouse position used for displaying it in the statusbar
+    int          m_mouse_x;
+    //mouse position used for displaying it in the statusbar
+    int          m_mouse_y;
+    //mouse position used for displaying it in the statusbar
+    double       m_mouse_worldx;
+    //mouse position used for displaying it in the statusbar
+    double       m_mouse_worldy;
+
+    //mouse position used for zooming
+    double       m_zoom_x1;
+    //mouse position used for zooming
+    double       m_zoom_y1;
+    //mouse position used for zooming
+    double       m_zoom_x2;
+    //mouse position used for zooming
+    double       m_zoom_y2;
+
+    //declare events
+    DECLARE_EVENT_TABLE()
+
+    //parent of the canvas
+    MySplitterWindow *m_parent;
+};
+
+// MyApp
+
+class MyApp: public wxApp
+{
+public:
+    virtual bool OnInit();
+
+    const wxString& GetFontPath() const { return m_fontpath; }
+
+private:
+    wxString m_fontpath;
+};
+
+#endif