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1 | /* | |
2 | * Program: scrollsub | |
3 | * | |
4 | * Author: Robert Roebling | |
5 | * | |
6 | * Copyright: (C) 1999, Robert Roebling | |
7 | * | |
8 | */ | |
9 | ||
10 | // For compilers that support precompilation, includes "wx/wx.h". | |
11 | #include "wx/wxprec.h" | |
12 | ||
13 | #ifdef __BORLANDC__ | |
14 | #pragma hdrstop | |
15 | #endif | |
16 | ||
17 | #ifndef WX_PRECOMP | |
18 | #include "wx/wx.h" | |
19 | #endif | |
20 | ||
21 | #include "wx/image.h" | |
22 | #include "wx/listctrl.h" | |
23 | #include "wx/sizer.h" | |
24 | #include "wx/log.h" | |
25 | ||
26 | ||
27 | // derived classes | |
28 | ||
29 | class MyFrame; | |
30 | class MyScrolledWindow; | |
31 | class MyCanvas; | |
32 | class MyApp; | |
33 | ||
34 | // MyScrolledWindow | |
35 | ||
36 | class MyScrolledWindow: public wxScrolledWindow | |
37 | { | |
38 | public: | |
39 | MyScrolledWindow(){}; | |
40 | MyScrolledWindow( wxWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size ); | |
41 | ~MyScrolledWindow(){}; | |
42 | void OnPaint( wxPaintEvent &event ); | |
43 | void OnSize( wxSizeEvent &event ); | |
44 | private: | |
45 | MyCanvas *m_canvas; | |
46 | ||
47 | DECLARE_DYNAMIC_CLASS(MyScrolledWindow) | |
48 | DECLARE_EVENT_TABLE() | |
49 | }; | |
50 | ||
51 | // MyTopLabels | |
52 | ||
53 | class MyTopLabels: public wxWindow | |
54 | { | |
55 | public: | |
56 | MyTopLabels() {} | |
57 | MyTopLabels( wxScrolledWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size ); | |
58 | ||
59 | void OnPaint( wxPaintEvent &event ); | |
60 | ||
61 | private: | |
62 | wxScrolledWindow *m_owner; | |
63 | ||
64 | DECLARE_DYNAMIC_CLASS(MyTopLabels) | |
65 | DECLARE_EVENT_TABLE() | |
66 | }; | |
67 | ||
68 | // MyRightLabels | |
69 | ||
70 | class MyRightLabels: public wxWindow | |
71 | { | |
72 | public: | |
73 | MyRightLabels() {} | |
74 | MyRightLabels( wxScrolledWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size ); | |
75 | ||
76 | void OnPaint( wxPaintEvent &event ); | |
77 | ||
78 | private: | |
79 | wxScrolledWindow *m_owner; | |
80 | ||
81 | DECLARE_DYNAMIC_CLASS(MyRightLabels) | |
82 | DECLARE_EVENT_TABLE() | |
83 | }; | |
84 | ||
85 | // MyCanvas | |
86 | ||
87 | class MyCanvas: public wxPanel | |
88 | { | |
89 | public: | |
90 | MyCanvas(){}; | |
91 | MyCanvas( wxScrolledWindow *parent, MyTopLabels *top, MyRightLabels *right, | |
92 | wxWindowID id, const wxPoint &pos, const wxSize &size ); | |
93 | ~MyCanvas(){}; | |
94 | void OnPaint( wxPaintEvent &event ); | |
95 | void ScrollWindow( int dx, int dy, const wxRect *rect ); | |
96 | ||
97 | private: | |
98 | wxScrolledWindow *m_owner; | |
99 | MyTopLabels *m_topLabels; | |
100 | MyRightLabels *m_rightLabels; | |
101 | ||
102 | DECLARE_DYNAMIC_CLASS(MyCanvas) | |
103 | DECLARE_EVENT_TABLE() | |
104 | }; | |
105 | ||
106 | // MyFrame | |
107 | ||
108 | class MyFrame: public wxFrame | |
109 | { | |
110 | public: | |
111 | MyFrame(); | |
112 | ||
113 | void OnAbout( wxCommandEvent &event ); | |
114 | void OnQuit( wxCommandEvent &event ); | |
115 | void OnFullScreen( wxCommandEvent &event ); | |
116 | ||
117 | wxScrolledWindow *m_scrolled; | |
118 | #if wxUSE_LOG | |
119 | wxTextCtrl *m_log; | |
120 | #endif // wxUSE_LOG | |
121 | ||
122 | private: | |
123 | DECLARE_DYNAMIC_CLASS(MyFrame) | |
124 | DECLARE_EVENT_TABLE() | |
125 | }; | |
126 | ||
127 | // MyApp | |
128 | ||
129 | class MyApp: public wxApp | |
130 | { | |
131 | public: | |
132 | virtual bool OnInit(); | |
133 | }; | |
134 | ||
135 | // main program | |
136 | ||
137 | IMPLEMENT_APP(MyApp) | |
138 | ||
139 | // MyScrolledWindow | |
140 | ||
141 | IMPLEMENT_DYNAMIC_CLASS(MyScrolledWindow, wxScrolledWindow) | |
142 | ||
143 | BEGIN_EVENT_TABLE(MyScrolledWindow, wxScrolledWindow) | |
144 | EVT_PAINT( MyScrolledWindow::OnPaint) | |
145 | EVT_SIZE( MyScrolledWindow::OnSize) | |
146 | END_EVENT_TABLE() | |
147 | ||
148 | MyScrolledWindow::MyScrolledWindow( wxWindow *parent, wxWindowID id, | |
149 | const wxPoint &pos, const wxSize &size ) | |
150 | : wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER, _T("test canvas") ) | |
151 | { | |
152 | MyTopLabels *top = new MyTopLabels( this, wxID_ANY, wxDefaultPosition, wxSize(wxDefaultCoord,25) ); | |
153 | MyRightLabels *right = new MyRightLabels( this, wxID_ANY, wxDefaultPosition, wxSize(60,wxDefaultCoord) ); | |
154 | ||
155 | m_canvas = new MyCanvas( this, top, right, wxID_ANY, wxDefaultPosition, wxDefaultSize ); | |
156 | ||
157 | SetTargetWindow( m_canvas ); | |
158 | ||
159 | SetBackgroundColour( wxT("WHEAT") ); | |
160 | ||
161 | SetCursor( wxCursor( wxCURSOR_HAND ) ); | |
162 | ||
163 | wxBoxSizer *mainsizer = new wxBoxSizer( wxVERTICAL ); | |
164 | ||
165 | wxBoxSizer *topsizer = new wxBoxSizer( wxHORIZONTAL ); | |
166 | topsizer->Add( 60,25 ); | |
167 | topsizer->Add( top, 1, wxEXPAND ); | |
168 | ||
169 | mainsizer->Add( topsizer, 0, wxEXPAND ); | |
170 | ||
171 | wxBoxSizer *middlesizer = new wxBoxSizer( wxHORIZONTAL ); | |
172 | middlesizer->Add( right, 0, wxEXPAND ); | |
173 | middlesizer->Add( m_canvas, 1, wxEXPAND ); | |
174 | ||
175 | mainsizer->Add( middlesizer, 1, wxEXPAND ); | |
176 | ||
177 | SetAutoLayout( true ); | |
178 | SetSizer( mainsizer ); | |
179 | } | |
180 | ||
181 | void MyScrolledWindow::OnSize( wxSizeEvent &WXUNUSED(event) ) | |
182 | { | |
183 | // We need to override OnSize so that our scrolled | |
184 | // window a) does call Layout() to use sizers for | |
185 | // positioning the controls but b) does not query | |
186 | // the sizer for their size and use that for setting | |
187 | // the scrollable area as set that ourselves by | |
188 | // calling SetScrollbar() further down. | |
189 | ||
190 | Layout(); | |
191 | ||
192 | AdjustScrollbars(); | |
193 | } | |
194 | ||
195 | void MyScrolledWindow::OnPaint( wxPaintEvent &WXUNUSED(event) ) | |
196 | { | |
197 | wxPaintDC dc( this ); | |
198 | ||
199 | /* | |
200 | wxSize size( GetClientSize() ); | |
201 | ||
202 | long w,h; | |
203 | dc.GetTextExtent( wxT("Headline"), &w, &h ); | |
204 | ||
205 | dc.DrawText( wxT("Headline"), long (size.x / 2 - w / 2), 10 ); | |
206 | */ | |
207 | } | |
208 | ||
209 | // MyTopLabels | |
210 | ||
211 | IMPLEMENT_DYNAMIC_CLASS(MyTopLabels,wxWindow) | |
212 | ||
213 | BEGIN_EVENT_TABLE(MyTopLabels, wxWindow) | |
214 | EVT_PAINT( MyTopLabels::OnPaint) | |
215 | END_EVENT_TABLE() | |
216 | ||
217 | MyTopLabels::MyTopLabels( wxScrolledWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size ) | |
218 | : wxWindow( parent, id, pos, size ) | |
219 | { | |
220 | m_owner = parent; | |
221 | } | |
222 | ||
223 | void MyTopLabels::OnPaint( wxPaintEvent& WXUNUSED(event) ) | |
224 | { | |
225 | wxPaintDC dc(this); | |
226 | ||
227 | // This is wrong.. it will translate both x and y if the | |
228 | // window is scrolled, the label windows are active in one | |
229 | // direction only. Do the action below instead -- RL. | |
230 | //m_owner->PrepareDC( dc ); | |
231 | ||
232 | int xScrollUnits, xOrigin; | |
233 | ||
234 | m_owner->GetViewStart( &xOrigin, 0 ); | |
235 | m_owner->GetScrollPixelsPerUnit( &xScrollUnits, 0 ); | |
236 | dc.SetDeviceOrigin( -xOrigin * xScrollUnits, 0 ); | |
237 | ||
238 | dc.DrawText( _T("Column 1"), 5, 5 ); | |
239 | dc.DrawText( _T("Column 2"), 105, 5 ); | |
240 | dc.DrawText( _T("Column 3"), 205, 5 ); | |
241 | } | |
242 | ||
243 | // MyRightLabels | |
244 | ||
245 | IMPLEMENT_DYNAMIC_CLASS(MyRightLabels,wxWindow) | |
246 | ||
247 | BEGIN_EVENT_TABLE(MyRightLabels, wxWindow) | |
248 | EVT_PAINT( MyRightLabels::OnPaint) | |
249 | END_EVENT_TABLE() | |
250 | ||
251 | MyRightLabels::MyRightLabels( wxScrolledWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size ) | |
252 | : wxWindow( parent, id, pos, size ) | |
253 | { | |
254 | m_owner = parent; | |
255 | } | |
256 | ||
257 | void MyRightLabels::OnPaint( wxPaintEvent& WXUNUSED(event) ) | |
258 | { | |
259 | wxPaintDC dc(this); | |
260 | ||
261 | // This is wrong.. it will translate both x and y if the | |
262 | // window is scrolled, the label windows are active in one | |
263 | // direction only. Do the action below instead -- RL. | |
264 | //m_owner->PrepareDC( dc ); | |
265 | ||
266 | int yScrollUnits, yOrigin; | |
267 | ||
268 | m_owner->GetViewStart( 0, &yOrigin ); | |
269 | m_owner->GetScrollPixelsPerUnit( 0, &yScrollUnits ); | |
270 | dc.SetDeviceOrigin( 0, -yOrigin * yScrollUnits ); | |
271 | ||
272 | dc.DrawText( _T("Row 1"), 5, 5 ); | |
273 | dc.DrawText( _T("Row 2"), 5, 30 ); | |
274 | dc.DrawText( _T("Row 3"), 5, 55 ); | |
275 | dc.DrawText( _T("Row 4"), 5, 80 ); | |
276 | dc.DrawText( _T("Row 5"), 5, 105 ); | |
277 | dc.DrawText( _T("Row 6"), 5, 130 ); | |
278 | } | |
279 | ||
280 | // MyCanvas | |
281 | ||
282 | IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxPanel) | |
283 | ||
284 | BEGIN_EVENT_TABLE(MyCanvas, wxPanel) | |
285 | EVT_PAINT( MyCanvas::OnPaint) | |
286 | END_EVENT_TABLE() | |
287 | ||
288 | MyCanvas::MyCanvas( wxScrolledWindow *parent, MyTopLabels *top, MyRightLabels *right, | |
289 | wxWindowID id, const wxPoint &pos, const wxSize &size ) | |
290 | : wxPanel( parent, id, pos, size, wxSUNKEN_BORDER, _T("test canvas") ) | |
291 | { | |
292 | m_owner = parent; | |
293 | m_topLabels = top; | |
294 | m_rightLabels = right; | |
295 | ||
296 | (void)new wxButton( this, wxID_ANY, _T("Hallo I"), wxPoint(0,50), wxSize(100,25) ); | |
297 | (void)new wxButton( this, wxID_ANY, _T("Hallo II"), wxPoint(200,50), wxSize(100,25) ); | |
298 | ||
299 | (void)new wxTextCtrl( this, wxID_ANY, _T("Text I"), wxPoint(0,100), wxSize(100,25) ); | |
300 | (void)new wxTextCtrl( this, wxID_ANY, _T("Text II"), wxPoint(200,100), wxSize(100,25) ); | |
301 | ||
302 | (void)new wxComboBox( this, wxID_ANY, _T("ComboBox I"), wxPoint(0,150), wxSize(100,25)); | |
303 | (void)new wxComboBox( this, wxID_ANY, _T("ComboBox II"), wxPoint(200,150), wxSize(100,25)); | |
304 | ||
305 | SetBackgroundColour( wxT("WHEAT") ); | |
306 | ||
307 | SetCursor( wxCursor( wxCURSOR_IBEAM ) ); | |
308 | } | |
309 | ||
310 | void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) | |
311 | { | |
312 | wxPaintDC dc( this ); | |
313 | m_owner->PrepareDC( dc ); | |
314 | ||
315 | dc.SetPen( *wxBLACK_PEN ); | |
316 | ||
317 | // OK, let's assume we are a grid control and we have two | |
318 | // grid cells. Here in OnPaint we want to know which cell | |
319 | // to redraw so that we prevent redrawing cells that don't | |
320 | // need to get redrawn. We have one cell at (0,0) and one | |
321 | // more at (200,0), both having a size of (100,25). | |
322 | ||
323 | // We can query how much the window has been scrolled | |
324 | // by calling CalcUnscrolledPosition() | |
325 | ||
326 | int scroll_x = 0; | |
327 | int scroll_y = 0; | |
328 | m_owner->CalcUnscrolledPosition( scroll_x, scroll_y, &scroll_x, &scroll_y ); | |
329 | ||
330 | // We also need to know the size of the window to see which | |
331 | // cells are completely hidden and not get redrawn | |
332 | ||
333 | int size_x = 0; | |
334 | int size_y = 0; | |
335 | GetClientSize( &size_x, &size_y ); | |
336 | ||
337 | // First cell: (0,0)(100,25) | |
338 | // It it on screen? | |
339 | if ((0+100-scroll_x > 0) && (0+25-scroll_y > 0) && | |
340 | (0-scroll_x < size_x) && (0-scroll_y < size_y)) | |
341 | { | |
342 | // Has the region on screen been exposed? | |
343 | if (IsExposed(0,0,100,25)) | |
344 | { | |
345 | wxLogMessage( wxT("Redraw first cell") ); | |
346 | dc.DrawRectangle( 0, 0, 100, 25 ); | |
347 | dc.DrawText( _T("First Cell"), 5, 5 ); | |
348 | } | |
349 | } | |
350 | ||
351 | ||
352 | // Second cell: (0,200)(100,25) | |
353 | // It it on screen? | |
354 | if ((200+100-scroll_x > 0) && (0+25-scroll_y > 0) && | |
355 | (200-scroll_x < size_x) && (0-scroll_y < size_y)) | |
356 | { | |
357 | // Has the region on screen been exposed? | |
358 | if (IsExposed(200,0,100,25)) | |
359 | { | |
360 | wxLogMessage( wxT("Redraw second cell") ); | |
361 | dc.DrawRectangle( 200, 0, 100, 25 ); | |
362 | dc.DrawText( _T("Second Cell"), 205, 5 ); | |
363 | } | |
364 | } | |
365 | ||
366 | } | |
367 | ||
368 | void MyCanvas::ScrollWindow( int dx, int dy, const wxRect *rect ) | |
369 | { | |
370 | wxPanel::ScrollWindow( dx, dy, rect ); | |
371 | m_topLabels->ScrollWindow( dx, 0, rect ); | |
372 | m_rightLabels->ScrollWindow( 0, dy, rect ); | |
373 | } | |
374 | ||
375 | // MyFrame | |
376 | ||
377 | const int ID_QUIT = 108; | |
378 | const int ID_FULL = 109; | |
379 | const int ID_ABOUT = 110; | |
380 | ||
381 | IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame ) | |
382 | ||
383 | BEGIN_EVENT_TABLE(MyFrame,wxFrame) | |
384 | EVT_MENU (ID_ABOUT, MyFrame::OnAbout) | |
385 | EVT_MENU (ID_QUIT, MyFrame::OnQuit) | |
386 | EVT_MENU (ID_FULL, MyFrame::OnFullScreen) | |
387 | END_EVENT_TABLE() | |
388 | ||
389 | MyFrame::MyFrame() | |
390 | : wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxScrolledWindow sample"), | |
391 | wxPoint(20,20), wxSize(470,500) ) | |
392 | { | |
393 | wxMenu *file_menu = new wxMenu(); | |
394 | file_menu->Append( ID_ABOUT, _T("&About...")); | |
395 | file_menu->Append( ID_FULL, _T("&Full screen on/off")); | |
396 | file_menu->Append( ID_QUIT, _T("E&xit\tAlt-X")); | |
397 | ||
398 | wxMenuBar *menu_bar = new wxMenuBar(); | |
399 | menu_bar->Append(file_menu, _T("&File")); | |
400 | ||
401 | SetMenuBar( menu_bar ); | |
402 | ||
403 | #if wxUSE_STATUSBAR | |
404 | CreateStatusBar(2); | |
405 | int widths[] = { -1, 100 }; | |
406 | SetStatusWidths( 2, widths ); | |
407 | #endif // wxUSE_STATUSBAR | |
408 | ||
409 | m_scrolled = new MyScrolledWindow( this, wxID_ANY, wxDefaultPosition, wxSize(100,100) ); | |
410 | m_scrolled->SetScrollbars( 10, 10, 50, 50 ); | |
411 | ||
412 | #if wxUSE_LOG | |
413 | m_log = new wxTextCtrl( this, wxID_ANY, _T("This is the log window.\n"), wxPoint(0,0), wxSize(100,100), wxTE_MULTILINE ); | |
414 | wxLog *old_log = wxLog::SetActiveTarget( new wxLogTextCtrl( m_log ) ); | |
415 | delete old_log; | |
416 | #endif // wxUSE_LOG | |
417 | ||
418 | wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL ); | |
419 | topsizer->Add( m_scrolled, 1, wxEXPAND ); | |
420 | #if wxUSE_LOG | |
421 | topsizer->Add( m_log, 0, wxEXPAND ); | |
422 | #endif // wxUSE_LOG | |
423 | ||
424 | SetAutoLayout( true ); | |
425 | SetSizer( topsizer ); | |
426 | } | |
427 | ||
428 | void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) ) | |
429 | { | |
430 | Close( true ); | |
431 | } | |
432 | ||
433 | void MyFrame::OnFullScreen( wxCommandEvent &WXUNUSED(event) ) | |
434 | { | |
435 | ShowFullScreen( !IsFullScreen(), wxFULLSCREEN_NOBORDER|wxFULLSCREEN_NOCAPTION ); | |
436 | } | |
437 | ||
438 | void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) ) | |
439 | { | |
440 | (void)wxMessageBox( _T("wxScroll demo II\n") | |
441 | _T("Robert Roebling (c) 1998"), | |
442 | _T("About wxScroll II Demo"), wxICON_INFORMATION | wxOK ); | |
443 | } | |
444 | ||
445 | //----------------------------------------------------------------------------- | |
446 | // MyApp | |
447 | //----------------------------------------------------------------------------- | |
448 | ||
449 | bool MyApp::OnInit() | |
450 | { | |
451 | wxFrame *frame = new MyFrame(); | |
452 | frame->Show( true ); | |
453 | ||
454 | return true; | |
455 | } | |
456 |