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68be9f09 1/////////////////////////////////////////////////////////////////////////////
11e2dfd3 2// Name: dragimag.h
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3// Purpose: wxDragImage sample
4// Author: Julian Smart
5// Modified by:
6// Created: 28/2/2000
7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef _WX_DRAGIMAGSAMPLE_
13#define _WX_DRAGIMAGSAMPLE_
14
15// derived classes
16
17class MyFrame;
18class MyApp;
19class MyCanvas;
20class DragShape;
21
22// MyFrame
23
24class MyFrame: public wxFrame
25{
26public:
27 MyFrame();
28
29 void OnAbout( wxCommandEvent &event );
30 void OnQuit( wxCommandEvent &event );
31
32 MyCanvas* GetCanvas() const { return m_canvas; }
33 void SetCanvas(MyCanvas* canvas) { m_canvas = canvas; }
34
35private:
36 MyCanvas* m_canvas;
37
38 DECLARE_DYNAMIC_CLASS(MyFrame)
39 DECLARE_EVENT_TABLE()
40};
41
42// MyApp
43
44class MyApp: public wxApp
45{
46public:
47 MyApp();
48 virtual bool OnInit();
0cbff120 49 virtual int OnExit();
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50
51//// Operations
52
53 // Tile the bitmap
54 bool TileBitmap(const wxRect& rect, wxDC& dc, wxBitmap& bitmap);
55
56//// Accessors
57 wxBitmap& GetBackgroundBitmap() const { return (wxBitmap&) m_background; }
58
59 bool GetUseScreen() const { return m_useScreen; }
60 void SetUseScreen(bool useScreen) { m_useScreen = useScreen; }
61
62 void OnUseScreen(wxCommandEvent& event);
63
64protected:
65 wxBitmap m_background;
66 bool m_useScreen;
67
68DECLARE_EVENT_TABLE()
69};
70
71DECLARE_APP(MyApp)
72
73#define TEST_USE_SCREEN 100
74
75// MyCanvas
76
77// Dragging modes
78#define TEST_DRAG_NONE 0
79#define TEST_DRAG_START 1
80#define TEST_DRAG_DRAGGING 2
81
82class MyCanvas: public wxScrolledWindow
83{
84public:
85 MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
86 ~MyCanvas();
87
88 void OnPaint( wxPaintEvent &event );
89 void OnEraseBackground(wxEraseEvent& event);
90 void OnMouseEvent(wxMouseEvent& event);
91
92 void DrawShapes(wxDC& dc);
93 void EraseShape(DragShape* shape, wxDC& dc);
94 void ClearShapes();
95 DragShape* FindShape(const wxPoint& pt) const;
96
97 wxList& GetDisplayList() { return m_displayList; }
98
99protected:
100
101private:
102 wxList m_displayList; // A list of DragShapes
103 int m_dragMode;
104 DragShape* m_draggedShape;
105 DragShape* m_currentlyHighlighted; // The shape that's being highlighted
106 wxPoint m_dragStartPos;
107 wxDragImage* m_dragImage;
108
109 DECLARE_CLASS(MyCanvas)
110 DECLARE_EVENT_TABLE()
111};
112
113
114// Ways to drag a shape
115
116#define SHAPE_DRAG_BITMAP 1
117#define SHAPE_DRAG_TEXT 2
118#define SHAPE_DRAG_ICON 3
119
120// Shape
121
122class DragShape: public wxObject
123{
124public:
125 DragShape(const wxBitmap& bitmap);
925e9792 126 ~DragShape(){};
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127
128//// Operations
129
130 bool HitTest(const wxPoint& pt) const;
131 bool Draw(wxDC& dc, int op = wxCOPY);
132
133//// Accessors
134
135 wxPoint GetPosition() const { return m_pos; }
136 void SetPosition(const wxPoint& pos) { m_pos = pos; }
137
138 wxRect GetRect() const { return wxRect(m_pos.x, m_pos.y, m_bitmap.GetWidth(), m_bitmap.GetHeight()); }
139
140 wxBitmap& GetBitmap() const { return (wxBitmap&) m_bitmap; }
141 void SetBitmap(const wxBitmap& bitmap) { m_bitmap = bitmap; }
142
143 int GetDragMethod() const { return m_dragMethod; }
144 void SetDragMethod(int method) { m_dragMethod = method; }
145
146 bool IsShown() const { return m_show; }
147 void SetShow(bool show) { m_show = show; }
148
149protected:
150 wxPoint m_pos;
151 wxBitmap m_bitmap;
152 int m_dragMethod;
153 bool m_show;
154};
155
156#endif
157 // _WX_DRAGIMAGSAMPLE_