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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/gtk/minifram.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // For compilers that support precompilation, includes "wx.h". | |
11 | #include "wx/wxprec.h" | |
12 | ||
13 | #if wxUSE_MINIFRAME | |
14 | ||
15 | #include "wx/minifram.h" | |
16 | ||
17 | #ifndef WX_PRECOMP | |
18 | #include "wx/settings.h" | |
19 | #include "wx/dcclient.h" | |
20 | #include "wx/image.h" | |
21 | #endif | |
22 | ||
23 | #ifdef __WXGTK3__ | |
24 | #include "wx/gtk/dc.h" | |
25 | #else | |
26 | #include "wx/gtk/dcclient.h" | |
27 | #endif | |
28 | ||
29 | #include <gtk/gtk.h> | |
30 | #include "wx/gtk/private/gtk2-compat.h" | |
31 | ||
32 | //----------------------------------------------------------------------------- | |
33 | // data | |
34 | //----------------------------------------------------------------------------- | |
35 | ||
36 | extern bool g_blockEventsOnDrag; | |
37 | extern bool g_blockEventsOnScroll; | |
38 | ||
39 | //----------------------------------------------------------------------------- | |
40 | // "expose_event" of m_mainWidget | |
41 | //----------------------------------------------------------------------------- | |
42 | ||
43 | // StepColour() it a utility function that simply darkens | |
44 | // or lightens a color, based on the specified percentage | |
45 | static wxColor StepColour(const wxColor& c, int percent) | |
46 | { | |
47 | int r = c.Red(), g = c.Green(), b = c.Blue(); | |
48 | return wxColour((unsigned char)wxMin((r*percent)/100,255), | |
49 | (unsigned char)wxMin((g*percent)/100,255), | |
50 | (unsigned char)wxMin((b*percent)/100,255)); | |
51 | } | |
52 | ||
53 | static wxColor LightContrastColour(const wxColour& c) | |
54 | { | |
55 | int amount = 120; | |
56 | ||
57 | // if the color is especially dark, then | |
58 | // make the contrast even lighter | |
59 | if (c.Red() < 128 && c.Green() < 128 && c.Blue() < 128) | |
60 | amount = 160; | |
61 | ||
62 | return StepColour(c, amount); | |
63 | } | |
64 | ||
65 | extern "C" { | |
66 | #ifdef __WXGTK3__ | |
67 | static gboolean draw(GtkWidget* widget, cairo_t* cr, wxMiniFrame* win) | |
68 | #else | |
69 | static gboolean expose_event(GtkWidget* widget, GdkEventExpose* gdk_event, wxMiniFrame* win) | |
70 | #endif | |
71 | { | |
72 | #ifdef __WXGTK3__ | |
73 | if (!gtk_cairo_should_draw_window(cr, gtk_widget_get_window(widget))) | |
74 | return false; | |
75 | ||
76 | GtkStyleContext* sc = gtk_widget_get_style_context(widget); | |
77 | gtk_style_context_save(sc); | |
78 | gtk_style_context_add_class(sc, GTK_STYLE_CLASS_BUTTON); | |
79 | gtk_render_frame(sc, cr, 0, 0, win->m_width, win->m_height); | |
80 | gtk_style_context_restore(sc); | |
81 | ||
82 | wxGTKCairoDC dc(cr); | |
83 | #else | |
84 | if (!win->m_hasVMT || gdk_event->count > 0 || | |
85 | gdk_event->window != gtk_widget_get_window(widget)) | |
86 | { | |
87 | return false; | |
88 | } | |
89 | ||
90 | gtk_paint_shadow (gtk_widget_get_style(widget), | |
91 | gtk_widget_get_window(widget), | |
92 | GTK_STATE_NORMAL, | |
93 | GTK_SHADOW_OUT, | |
94 | NULL, NULL, NULL, // FIXME: No clipping? | |
95 | 0, 0, | |
96 | win->m_width, win->m_height); | |
97 | ||
98 | wxClientDC dc(win); | |
99 | ||
100 | wxDCImpl *impl = dc.GetImpl(); | |
101 | wxClientDCImpl *gtk_impl = wxDynamicCast( impl, wxClientDCImpl ); | |
102 | gtk_impl->m_gdkwindow = gtk_widget_get_window(widget); // Hack alert | |
103 | #endif | |
104 | ||
105 | int style = win->GetWindowStyle(); | |
106 | ||
107 | #ifndef __WXGTK3__ | |
108 | if (style & wxRESIZE_BORDER) | |
109 | { | |
110 | dc.SetBrush( *wxGREY_BRUSH ); | |
111 | dc.SetPen( *wxTRANSPARENT_PEN ); | |
112 | dc.DrawRectangle( win->m_width - 14, win->m_height-14, 14, 14 ); | |
113 | } | |
114 | #endif | |
115 | ||
116 | if (win->m_miniTitle && !win->GetTitle().empty()) | |
117 | { | |
118 | dc.SetFont( *wxSMALL_FONT ); | |
119 | ||
120 | wxBrush brush( LightContrastColour( wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT) ) ); | |
121 | dc.SetBrush( brush ); | |
122 | dc.SetPen( *wxTRANSPARENT_PEN ); | |
123 | dc.DrawRectangle( win->m_miniEdge-1, | |
124 | win->m_miniEdge-1, | |
125 | win->m_width - (2*(win->m_miniEdge-1)), | |
126 | 15 ); | |
127 | ||
128 | dc.SetTextForeground( *wxWHITE ); | |
129 | dc.DrawText( win->GetTitle(), 6, 4 ); | |
130 | ||
131 | if (style & wxCLOSE_BOX) | |
132 | dc.DrawBitmap( win->m_closeButton, win->m_width-18, 3, true ); | |
133 | } | |
134 | ||
135 | return false; | |
136 | } | |
137 | } | |
138 | ||
139 | //----------------------------------------------------------------------------- | |
140 | // "button_press_event" of m_mainWidget | |
141 | //----------------------------------------------------------------------------- | |
142 | ||
143 | extern "C" { | |
144 | static gboolean | |
145 | gtk_window_button_press_callback(GtkWidget* widget, GdkEventButton* gdk_event, wxMiniFrame* win) | |
146 | { | |
147 | if (!win->m_hasVMT || gdk_event->window != gtk_widget_get_window(widget)) | |
148 | return false; | |
149 | if (g_blockEventsOnDrag) return TRUE; | |
150 | if (g_blockEventsOnScroll) return TRUE; | |
151 | ||
152 | if (win->m_isDragging) return TRUE; | |
153 | ||
154 | int style = win->GetWindowStyle(); | |
155 | ||
156 | int y = (int)gdk_event->y; | |
157 | int x = (int)gdk_event->x; | |
158 | ||
159 | #ifndef __WXGTK3__ | |
160 | if ((style & wxRESIZE_BORDER) && | |
161 | (x > win->m_width-14) && (y > win->m_height-14)) | |
162 | { | |
163 | GtkWidget *ancestor = gtk_widget_get_toplevel( widget ); | |
164 | ||
165 | GdkWindow *source = gtk_widget_get_window(widget); | |
166 | ||
167 | int org_x = 0; | |
168 | int org_y = 0; | |
169 | gdk_window_get_origin( source, &org_x, &org_y ); | |
170 | ||
171 | gtk_window_begin_resize_drag (GTK_WINDOW (ancestor), | |
172 | GDK_WINDOW_EDGE_SOUTH_EAST, | |
173 | 1, | |
174 | org_x + x, | |
175 | org_y + y, | |
176 | 0); | |
177 | ||
178 | return TRUE; | |
179 | } | |
180 | #endif | |
181 | ||
182 | if (win->m_miniTitle && (style & wxCLOSE_BOX)) | |
183 | { | |
184 | if ((y > 3) && (y < 19) && (x > win->m_width-19) && (x < win->m_width-3)) | |
185 | { | |
186 | win->Close(); | |
187 | return TRUE; | |
188 | } | |
189 | } | |
190 | ||
191 | if (y >= win->m_miniEdge + win->m_miniTitle) | |
192 | return true; | |
193 | ||
194 | gdk_window_raise(gtk_widget_get_window(win->m_widget)); | |
195 | ||
196 | gdk_pointer_grab( gtk_widget_get_window(widget), false, | |
197 | (GdkEventMask) | |
198 | (GDK_BUTTON_PRESS_MASK | | |
199 | GDK_BUTTON_RELEASE_MASK | | |
200 | GDK_POINTER_MOTION_MASK | | |
201 | GDK_POINTER_MOTION_HINT_MASK | | |
202 | GDK_BUTTON_MOTION_MASK | | |
203 | GDK_BUTTON1_MOTION_MASK), | |
204 | NULL, | |
205 | NULL, | |
206 | (unsigned int) GDK_CURRENT_TIME ); | |
207 | ||
208 | win->m_diffX = x; | |
209 | win->m_diffY = y; | |
210 | win->m_oldX = 0; | |
211 | win->m_oldY = 0; | |
212 | ||
213 | win->m_isDragging = true; | |
214 | ||
215 | return TRUE; | |
216 | } | |
217 | } | |
218 | ||
219 | //----------------------------------------------------------------------------- | |
220 | // "button_release_event" of m_mainWidget | |
221 | //----------------------------------------------------------------------------- | |
222 | ||
223 | extern "C" { | |
224 | static gboolean | |
225 | gtk_window_button_release_callback(GtkWidget* widget, GdkEventButton* gdk_event, wxMiniFrame* win) | |
226 | { | |
227 | if (!win->m_hasVMT || gdk_event->window != gtk_widget_get_window(widget)) | |
228 | return false; | |
229 | if (g_blockEventsOnDrag) return TRUE; | |
230 | if (g_blockEventsOnScroll) return TRUE; | |
231 | if (!win->m_isDragging) return TRUE; | |
232 | ||
233 | win->m_isDragging = false; | |
234 | ||
235 | int x = (int)gdk_event->x; | |
236 | int y = (int)gdk_event->y; | |
237 | ||
238 | gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME ); | |
239 | int org_x = 0; | |
240 | int org_y = 0; | |
241 | gdk_window_get_origin(gtk_widget_get_window(widget), &org_x, &org_y); | |
242 | x += org_x - win->m_diffX; | |
243 | y += org_y - win->m_diffY; | |
244 | win->m_x = x; | |
245 | win->m_y = y; | |
246 | gtk_window_move( GTK_WINDOW(win->m_widget), x, y ); | |
247 | ||
248 | return TRUE; | |
249 | } | |
250 | } | |
251 | ||
252 | //----------------------------------------------------------------------------- | |
253 | // "leave_notify_event" of m_mainWidget | |
254 | //----------------------------------------------------------------------------- | |
255 | ||
256 | extern "C" { | |
257 | static gboolean | |
258 | gtk_window_leave_callback(GtkWidget *widget, | |
259 | GdkEventCrossing* gdk_event, | |
260 | wxMiniFrame *win) | |
261 | { | |
262 | if (!win->m_hasVMT) return FALSE; | |
263 | if (g_blockEventsOnDrag) return FALSE; | |
264 | if (gdk_event->window != gtk_widget_get_window(widget)) | |
265 | return false; | |
266 | ||
267 | gdk_window_set_cursor(gtk_widget_get_window(widget), NULL); | |
268 | ||
269 | return FALSE; | |
270 | } | |
271 | } | |
272 | ||
273 | //----------------------------------------------------------------------------- | |
274 | // "motion_notify_event" of m_mainWidget | |
275 | //----------------------------------------------------------------------------- | |
276 | ||
277 | extern "C" { | |
278 | static gboolean | |
279 | gtk_window_motion_notify_callback( GtkWidget *widget, GdkEventMotion *gdk_event, wxMiniFrame *win ) | |
280 | { | |
281 | if (!win->m_hasVMT || gdk_event->window != gtk_widget_get_window(widget)) | |
282 | return false; | |
283 | if (g_blockEventsOnDrag) return TRUE; | |
284 | if (g_blockEventsOnScroll) return TRUE; | |
285 | ||
286 | if (gdk_event->is_hint) | |
287 | { | |
288 | int x = 0; | |
289 | int y = 0; | |
290 | GdkModifierType state; | |
291 | gdk_window_get_pointer(gdk_event->window, &x, &y, &state); | |
292 | gdk_event->x = x; | |
293 | gdk_event->y = y; | |
294 | gdk_event->state = state; | |
295 | } | |
296 | ||
297 | int x = (int)gdk_event->x; | |
298 | int y = (int)gdk_event->y; | |
299 | ||
300 | if (!win->m_isDragging) | |
301 | { | |
302 | #ifndef __WXGTK3__ | |
303 | if (win->GetWindowStyle() & wxRESIZE_BORDER) | |
304 | { | |
305 | if ((x > win->m_width-14) && (y > win->m_height-14)) | |
306 | gdk_window_set_cursor(gtk_widget_get_window(widget), gdk_cursor_new(GDK_BOTTOM_RIGHT_CORNER)); | |
307 | else | |
308 | gdk_window_set_cursor(gtk_widget_get_window(widget), NULL); | |
309 | win->GTKUpdateCursor(false); | |
310 | } | |
311 | #endif | |
312 | return TRUE; | |
313 | } | |
314 | ||
315 | win->m_oldX = x - win->m_diffX; | |
316 | win->m_oldY = y - win->m_diffY; | |
317 | ||
318 | int org_x = 0; | |
319 | int org_y = 0; | |
320 | gdk_window_get_origin(gtk_widget_get_window(widget), &org_x, &org_y); | |
321 | x += org_x - win->m_diffX; | |
322 | y += org_y - win->m_diffY; | |
323 | win->m_x = x; | |
324 | win->m_y = y; | |
325 | gtk_window_move( GTK_WINDOW(win->m_widget), x, y ); | |
326 | ||
327 | return TRUE; | |
328 | } | |
329 | } | |
330 | ||
331 | //----------------------------------------------------------------------------- | |
332 | // wxMiniFrame | |
333 | //----------------------------------------------------------------------------- | |
334 | ||
335 | static unsigned char close_bits[]={ | |
336 | 0xff, 0xff, 0xff, 0xff, 0x07, 0xf0, 0xfb, 0xef, 0xdb, 0xed, 0x8b, 0xe8, | |
337 | 0x1b, 0xec, 0x3b, 0xee, 0x1b, 0xec, 0x8b, 0xe8, 0xdb, 0xed, 0xfb, 0xef, | |
338 | 0x07, 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
339 | ||
340 | ||
341 | IMPLEMENT_DYNAMIC_CLASS(wxMiniFrame,wxFrame) | |
342 | ||
343 | bool wxMiniFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title, | |
344 | const wxPoint &pos, const wxSize &size, | |
345 | long style, const wxString &name ) | |
346 | { | |
347 | m_miniTitle = 0; | |
348 | if (style & wxCAPTION) | |
349 | m_miniTitle = 16; | |
350 | ||
351 | if (style & wxRESIZE_BORDER) | |
352 | m_miniEdge = 4; | |
353 | else | |
354 | m_miniEdge = 3; | |
355 | m_isDragging = false; | |
356 | m_oldX = -1; | |
357 | m_oldY = -1; | |
358 | m_diffX = 0; | |
359 | m_diffY = 0; | |
360 | ||
361 | // don't allow sizing smaller than decorations | |
362 | int minWidth = 2 * m_miniEdge; | |
363 | int minHeight = 2 * m_miniEdge + m_miniTitle; | |
364 | if (m_minWidth < minWidth) | |
365 | m_minWidth = minWidth; | |
366 | if (m_minHeight < minHeight) | |
367 | m_minHeight = minHeight; | |
368 | ||
369 | wxFrame::Create( parent, id, title, pos, size, style, name ); | |
370 | ||
371 | // Use a GtkEventBox for the title and borders. Using m_widget for this | |
372 | // almost works, except that setting the resize cursor has no effect. | |
373 | GtkWidget* eventbox = gtk_event_box_new(); | |
374 | gtk_widget_add_events(eventbox, | |
375 | GDK_POINTER_MOTION_MASK | | |
376 | GDK_POINTER_MOTION_HINT_MASK); | |
377 | gtk_widget_show(eventbox); | |
378 | // Use a GtkAlignment to position m_mainWidget inside the decorations | |
379 | GtkWidget* alignment = gtk_alignment_new(0, 0, 1, 1); | |
380 | gtk_alignment_set_padding(GTK_ALIGNMENT(alignment), | |
381 | m_miniTitle + m_miniEdge, m_miniEdge, m_miniEdge, m_miniEdge); | |
382 | gtk_widget_show(alignment); | |
383 | // The GtkEventBox and GtkAlignment go between m_widget and m_mainWidget | |
384 | gtk_widget_reparent(m_mainWidget, alignment); | |
385 | gtk_container_add(GTK_CONTAINER(eventbox), alignment); | |
386 | gtk_container_add(GTK_CONTAINER(m_widget), eventbox); | |
387 | ||
388 | m_gdkDecor = 0; | |
389 | m_gdkFunc = 0; | |
390 | if (style & wxRESIZE_BORDER) | |
391 | m_gdkFunc = GDK_FUNC_RESIZE; | |
392 | gtk_window_set_default_size(GTK_WINDOW(m_widget), m_width, m_height); | |
393 | m_decorSize.Set(0, 0); | |
394 | m_deferShow = false; | |
395 | ||
396 | if (m_parent && (GTK_IS_WINDOW(m_parent->m_widget))) | |
397 | { | |
398 | gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) ); | |
399 | } | |
400 | ||
401 | if (m_miniTitle && (style & wxCLOSE_BOX)) | |
402 | { | |
403 | wxImage img = wxBitmap((const char*)close_bits, 16, 16).ConvertToImage(); | |
404 | img.Replace(0,0,0,123,123,123); | |
405 | img.SetMaskColour(123,123,123); | |
406 | m_closeButton = wxBitmap( img ); | |
407 | } | |
408 | ||
409 | /* these are called when the borders are drawn */ | |
410 | #ifdef __WXGTK3__ | |
411 | g_signal_connect_after(eventbox, "draw", G_CALLBACK(draw), this); | |
412 | #else | |
413 | g_signal_connect_after(eventbox, "expose_event", G_CALLBACK(expose_event), this); | |
414 | #endif | |
415 | ||
416 | /* these are required for dragging the mini frame around */ | |
417 | g_signal_connect (eventbox, "button_press_event", | |
418 | G_CALLBACK (gtk_window_button_press_callback), this); | |
419 | g_signal_connect (eventbox, "button_release_event", | |
420 | G_CALLBACK (gtk_window_button_release_callback), this); | |
421 | g_signal_connect (eventbox, "motion_notify_event", | |
422 | G_CALLBACK (gtk_window_motion_notify_callback), this); | |
423 | g_signal_connect (eventbox, "leave_notify_event", | |
424 | G_CALLBACK (gtk_window_leave_callback), this); | |
425 | return true; | |
426 | } | |
427 | ||
428 | void wxMiniFrame::DoGetClientSize(int* width, int* height) const | |
429 | { | |
430 | wxFrame::DoGetClientSize(width, height); | |
431 | if (width) | |
432 | { | |
433 | *width -= 2 * m_miniEdge; | |
434 | if (*width < 0) *width = 0; | |
435 | } | |
436 | if (height) | |
437 | { | |
438 | *height -= m_miniTitle + 2 * m_miniEdge; | |
439 | if (*height < 0) *height = 0; | |
440 | } | |
441 | } | |
442 | ||
443 | // Keep min size at least as large as decorations | |
444 | void wxMiniFrame::DoSetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH) | |
445 | { | |
446 | const int w = 2 * m_miniEdge; | |
447 | const int h = 2 * m_miniEdge + m_miniTitle; | |
448 | if (minW < w) minW = w; | |
449 | if (minH < h) minH = h; | |
450 | wxFrame::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH); | |
451 | } | |
452 | ||
453 | void wxMiniFrame::SetTitle( const wxString &title ) | |
454 | { | |
455 | wxFrame::SetTitle( title ); | |
456 | ||
457 | GdkWindow* window = gtk_widget_get_window(gtk_bin_get_child(GTK_BIN(m_widget))); | |
458 | if (window) | |
459 | gdk_window_invalidate_rect(window, NULL, false); | |
460 | } | |
461 | ||
462 | #endif // wxUSE_MINIFRAME |