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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/gtk/minifram.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Copyright: (c) 1998 Robert Roebling | |
6 | // Licence: wxWindows licence | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | // For compilers that support precompilation, includes "wx.h". | |
10 | #include "wx/wxprec.h" | |
11 | ||
12 | #if wxUSE_MINIFRAME | |
13 | ||
14 | #include "wx/minifram.h" | |
15 | ||
16 | #ifndef WX_PRECOMP | |
17 | #include "wx/settings.h" | |
18 | #include "wx/dcclient.h" | |
19 | #include "wx/image.h" | |
20 | #endif | |
21 | ||
22 | #ifdef __WXGTK3__ | |
23 | #include "wx/gtk/dc.h" | |
24 | #else | |
25 | #include "wx/gtk/dcclient.h" | |
26 | #endif | |
27 | ||
28 | #include <gtk/gtk.h> | |
29 | #include "wx/gtk/private/gtk2-compat.h" | |
30 | ||
31 | //----------------------------------------------------------------------------- | |
32 | // data | |
33 | //----------------------------------------------------------------------------- | |
34 | ||
35 | extern bool g_blockEventsOnDrag; | |
36 | extern bool g_blockEventsOnScroll; | |
37 | ||
38 | //----------------------------------------------------------------------------- | |
39 | // "expose_event" of m_mainWidget | |
40 | //----------------------------------------------------------------------------- | |
41 | ||
42 | // StepColour() it a utility function that simply darkens | |
43 | // or lightens a color, based on the specified percentage | |
44 | static wxColor StepColour(const wxColor& c, int percent) | |
45 | { | |
46 | int r = c.Red(), g = c.Green(), b = c.Blue(); | |
47 | return wxColour((unsigned char)wxMin((r*percent)/100,255), | |
48 | (unsigned char)wxMin((g*percent)/100,255), | |
49 | (unsigned char)wxMin((b*percent)/100,255)); | |
50 | } | |
51 | ||
52 | static wxColor LightContrastColour(const wxColour& c) | |
53 | { | |
54 | int amount = 120; | |
55 | ||
56 | // if the color is especially dark, then | |
57 | // make the contrast even lighter | |
58 | if (c.Red() < 128 && c.Green() < 128 && c.Blue() < 128) | |
59 | amount = 160; | |
60 | ||
61 | return StepColour(c, amount); | |
62 | } | |
63 | ||
64 | extern "C" { | |
65 | #ifdef __WXGTK3__ | |
66 | static gboolean draw(GtkWidget* widget, cairo_t* cr, wxMiniFrame* win) | |
67 | #else | |
68 | static gboolean expose_event(GtkWidget* widget, GdkEventExpose* gdk_event, wxMiniFrame* win) | |
69 | #endif | |
70 | { | |
71 | #ifdef __WXGTK3__ | |
72 | if (!gtk_cairo_should_draw_window(cr, gtk_widget_get_window(widget))) | |
73 | return false; | |
74 | ||
75 | GtkStyleContext* sc = gtk_widget_get_style_context(widget); | |
76 | gtk_style_context_save(sc); | |
77 | gtk_style_context_add_class(sc, GTK_STYLE_CLASS_BUTTON); | |
78 | gtk_render_frame(sc, cr, 0, 0, win->m_width, win->m_height); | |
79 | gtk_style_context_restore(sc); | |
80 | ||
81 | wxGTKCairoDC dc(cr); | |
82 | #else | |
83 | if (gdk_event->count > 0 || | |
84 | gdk_event->window != gtk_widget_get_window(widget)) | |
85 | { | |
86 | return false; | |
87 | } | |
88 | ||
89 | gtk_paint_shadow (gtk_widget_get_style(widget), | |
90 | gtk_widget_get_window(widget), | |
91 | GTK_STATE_NORMAL, | |
92 | GTK_SHADOW_OUT, | |
93 | NULL, NULL, NULL, // FIXME: No clipping? | |
94 | 0, 0, | |
95 | win->m_width, win->m_height); | |
96 | ||
97 | wxClientDC dc(win); | |
98 | ||
99 | wxDCImpl *impl = dc.GetImpl(); | |
100 | wxClientDCImpl *gtk_impl = wxDynamicCast( impl, wxClientDCImpl ); | |
101 | gtk_impl->m_gdkwindow = gtk_widget_get_window(widget); // Hack alert | |
102 | #endif | |
103 | ||
104 | int style = win->GetWindowStyle(); | |
105 | ||
106 | if (style & wxRESIZE_BORDER) | |
107 | { | |
108 | dc.SetBrush( *wxGREY_BRUSH ); | |
109 | dc.SetPen( *wxTRANSPARENT_PEN ); | |
110 | dc.DrawRectangle( win->m_width - 14, win->m_height-14, 14, 14 ); | |
111 | } | |
112 | ||
113 | if (win->m_miniTitle && !win->GetTitle().empty()) | |
114 | { | |
115 | dc.SetFont( *wxSMALL_FONT ); | |
116 | ||
117 | wxBrush brush( LightContrastColour( wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT) ) ); | |
118 | dc.SetBrush( brush ); | |
119 | dc.SetPen( *wxTRANSPARENT_PEN ); | |
120 | dc.DrawRectangle( win->m_miniEdge-1, | |
121 | win->m_miniEdge-1, | |
122 | win->m_width - (2*(win->m_miniEdge-1)), | |
123 | 15 ); | |
124 | ||
125 | dc.SetTextForeground( *wxWHITE ); | |
126 | dc.DrawText( win->GetTitle(), 6, 4 ); | |
127 | ||
128 | if (style & wxCLOSE_BOX) | |
129 | dc.DrawBitmap( win->m_closeButton, win->m_width-18, 3, true ); | |
130 | } | |
131 | ||
132 | return false; | |
133 | } | |
134 | } | |
135 | ||
136 | //----------------------------------------------------------------------------- | |
137 | // "button_press_event" of m_mainWidget | |
138 | //----------------------------------------------------------------------------- | |
139 | ||
140 | extern "C" { | |
141 | static gboolean | |
142 | gtk_window_button_press_callback(GtkWidget* widget, GdkEventButton* gdk_event, wxMiniFrame* win) | |
143 | { | |
144 | if (gdk_event->window != gtk_widget_get_window(widget)) | |
145 | return false; | |
146 | if (g_blockEventsOnDrag) return TRUE; | |
147 | if (g_blockEventsOnScroll) return TRUE; | |
148 | ||
149 | if (win->m_isDragging) return TRUE; | |
150 | ||
151 | int style = win->GetWindowStyle(); | |
152 | ||
153 | int y = (int)gdk_event->y; | |
154 | int x = (int)gdk_event->x; | |
155 | ||
156 | if ((style & wxRESIZE_BORDER) && | |
157 | (x > win->m_width-14) && (y > win->m_height-14)) | |
158 | { | |
159 | GtkWidget *ancestor = gtk_widget_get_toplevel( widget ); | |
160 | ||
161 | GdkWindow *source = gtk_widget_get_window(widget); | |
162 | ||
163 | int org_x = 0; | |
164 | int org_y = 0; | |
165 | gdk_window_get_origin( source, &org_x, &org_y ); | |
166 | ||
167 | gtk_window_begin_resize_drag (GTK_WINDOW (ancestor), | |
168 | GDK_WINDOW_EDGE_SOUTH_EAST, | |
169 | 1, | |
170 | org_x + x, | |
171 | org_y + y, | |
172 | 0); | |
173 | ||
174 | return TRUE; | |
175 | } | |
176 | ||
177 | if (win->m_miniTitle && (style & wxCLOSE_BOX)) | |
178 | { | |
179 | if ((y > 3) && (y < 19) && (x > win->m_width-19) && (x < win->m_width-3)) | |
180 | { | |
181 | win->Close(); | |
182 | return TRUE; | |
183 | } | |
184 | } | |
185 | ||
186 | if (y >= win->m_miniEdge + win->m_miniTitle) | |
187 | return true; | |
188 | ||
189 | gdk_window_raise(gtk_widget_get_window(win->m_widget)); | |
190 | ||
191 | const GdkEventMask mask = GdkEventMask( | |
192 | GDK_BUTTON_PRESS_MASK | | |
193 | GDK_BUTTON_RELEASE_MASK | | |
194 | GDK_POINTER_MOTION_MASK | | |
195 | GDK_POINTER_MOTION_HINT_MASK | | |
196 | GDK_BUTTON_MOTION_MASK | | |
197 | GDK_BUTTON1_MOTION_MASK); | |
198 | #ifdef __WXGTK3__ | |
199 | gdk_device_grab( | |
200 | gdk_event->device, gdk_event->window, GDK_OWNERSHIP_NONE, | |
201 | false, mask, NULL, gdk_event->time); | |
202 | #else | |
203 | gdk_pointer_grab(gdk_event->window, false, mask, NULL, NULL, gdk_event->time); | |
204 | #endif | |
205 | ||
206 | win->m_diffX = x; | |
207 | win->m_diffY = y; | |
208 | win->m_oldX = 0; | |
209 | win->m_oldY = 0; | |
210 | ||
211 | win->m_isDragging = true; | |
212 | ||
213 | return TRUE; | |
214 | } | |
215 | } | |
216 | ||
217 | //----------------------------------------------------------------------------- | |
218 | // "button_release_event" of m_mainWidget | |
219 | //----------------------------------------------------------------------------- | |
220 | ||
221 | extern "C" { | |
222 | static gboolean | |
223 | gtk_window_button_release_callback(GtkWidget* widget, GdkEventButton* gdk_event, wxMiniFrame* win) | |
224 | { | |
225 | if (gdk_event->window != gtk_widget_get_window(widget)) | |
226 | return false; | |
227 | if (g_blockEventsOnDrag) return TRUE; | |
228 | if (g_blockEventsOnScroll) return TRUE; | |
229 | if (!win->m_isDragging) return TRUE; | |
230 | ||
231 | win->m_isDragging = false; | |
232 | ||
233 | int x = (int)gdk_event->x; | |
234 | int y = (int)gdk_event->y; | |
235 | ||
236 | #ifdef __WXGTK3__ | |
237 | gdk_device_ungrab(gdk_event->device, gdk_event->time); | |
238 | #else | |
239 | gdk_pointer_ungrab(gdk_event->time); | |
240 | #endif | |
241 | int org_x = 0; | |
242 | int org_y = 0; | |
243 | gdk_window_get_origin(gtk_widget_get_window(widget), &org_x, &org_y); | |
244 | x += org_x - win->m_diffX; | |
245 | y += org_y - win->m_diffY; | |
246 | win->m_x = x; | |
247 | win->m_y = y; | |
248 | gtk_window_move( GTK_WINDOW(win->m_widget), x, y ); | |
249 | ||
250 | return TRUE; | |
251 | } | |
252 | } | |
253 | ||
254 | //----------------------------------------------------------------------------- | |
255 | // "leave_notify_event" of m_mainWidget | |
256 | //----------------------------------------------------------------------------- | |
257 | ||
258 | extern "C" { | |
259 | static gboolean | |
260 | gtk_window_leave_callback(GtkWidget *widget, | |
261 | GdkEventCrossing* gdk_event, | |
262 | wxMiniFrame*) | |
263 | { | |
264 | if (g_blockEventsOnDrag) return FALSE; | |
265 | if (gdk_event->window != gtk_widget_get_window(widget)) | |
266 | return false; | |
267 | ||
268 | gdk_window_set_cursor(gtk_widget_get_window(widget), NULL); | |
269 | ||
270 | return FALSE; | |
271 | } | |
272 | } | |
273 | ||
274 | //----------------------------------------------------------------------------- | |
275 | // "motion_notify_event" of m_mainWidget | |
276 | //----------------------------------------------------------------------------- | |
277 | ||
278 | extern "C" { | |
279 | static gboolean | |
280 | gtk_window_motion_notify_callback( GtkWidget *widget, GdkEventMotion *gdk_event, wxMiniFrame *win ) | |
281 | { | |
282 | if (gdk_event->window != gtk_widget_get_window(widget)) | |
283 | return false; | |
284 | if (g_blockEventsOnDrag) return TRUE; | |
285 | if (g_blockEventsOnScroll) return TRUE; | |
286 | ||
287 | int x = int(gdk_event->x); | |
288 | int y = int(gdk_event->y); | |
289 | ||
290 | if (gdk_event->is_hint) | |
291 | { | |
292 | #ifdef __WXGTK3__ | |
293 | gdk_window_get_device_position(gdk_event->window, gdk_event->device, &x, &y, NULL); | |
294 | #else | |
295 | gdk_window_get_pointer(gdk_event->window, &x, &y, NULL); | |
296 | #endif | |
297 | } | |
298 | ||
299 | if (!win->m_isDragging) | |
300 | { | |
301 | if (win->GetWindowStyle() & wxRESIZE_BORDER) | |
302 | { | |
303 | if ((x > win->m_width-14) && (y > win->m_height-14)) | |
304 | gdk_window_set_cursor(gtk_widget_get_window(widget), gdk_cursor_new(GDK_BOTTOM_RIGHT_CORNER)); | |
305 | else | |
306 | gdk_window_set_cursor(gtk_widget_get_window(widget), NULL); | |
307 | win->GTKUpdateCursor(false); | |
308 | } | |
309 | return TRUE; | |
310 | } | |
311 | ||
312 | win->m_oldX = x - win->m_diffX; | |
313 | win->m_oldY = y - win->m_diffY; | |
314 | ||
315 | int org_x = 0; | |
316 | int org_y = 0; | |
317 | gdk_window_get_origin(gtk_widget_get_window(widget), &org_x, &org_y); | |
318 | x += org_x - win->m_diffX; | |
319 | y += org_y - win->m_diffY; | |
320 | win->m_x = x; | |
321 | win->m_y = y; | |
322 | gtk_window_move( GTK_WINDOW(win->m_widget), x, y ); | |
323 | ||
324 | return TRUE; | |
325 | } | |
326 | } | |
327 | ||
328 | //----------------------------------------------------------------------------- | |
329 | // wxMiniFrame | |
330 | //----------------------------------------------------------------------------- | |
331 | ||
332 | static unsigned char close_bits[]={ | |
333 | 0xff, 0xff, 0xff, 0xff, 0x07, 0xf0, 0xfb, 0xef, 0xdb, 0xed, 0x8b, 0xe8, | |
334 | 0x1b, 0xec, 0x3b, 0xee, 0x1b, 0xec, 0x8b, 0xe8, 0xdb, 0xed, 0xfb, 0xef, | |
335 | 0x07, 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
336 | ||
337 | ||
338 | IMPLEMENT_DYNAMIC_CLASS(wxMiniFrame,wxFrame) | |
339 | ||
340 | wxMiniFrame::~wxMiniFrame() | |
341 | { | |
342 | if (m_widget) | |
343 | { | |
344 | GtkWidget* eventbox = gtk_bin_get_child(GTK_BIN(m_widget)); | |
345 | GTKDisconnect(eventbox); | |
346 | } | |
347 | } | |
348 | ||
349 | bool wxMiniFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title, | |
350 | const wxPoint &pos, const wxSize &size, | |
351 | long style, const wxString &name ) | |
352 | { | |
353 | m_miniTitle = 0; | |
354 | if (style & wxCAPTION) | |
355 | m_miniTitle = 16; | |
356 | ||
357 | if (style & wxRESIZE_BORDER) | |
358 | m_miniEdge = 4; | |
359 | else | |
360 | m_miniEdge = 3; | |
361 | m_isDragging = false; | |
362 | m_oldX = -1; | |
363 | m_oldY = -1; | |
364 | m_diffX = 0; | |
365 | m_diffY = 0; | |
366 | ||
367 | // don't allow sizing smaller than decorations | |
368 | int minWidth = 2 * m_miniEdge; | |
369 | int minHeight = 2 * m_miniEdge + m_miniTitle; | |
370 | if (m_minWidth < minWidth) | |
371 | m_minWidth = minWidth; | |
372 | if (m_minHeight < minHeight) | |
373 | m_minHeight = minHeight; | |
374 | ||
375 | wxFrame::Create( parent, id, title, pos, size, style, name ); | |
376 | ||
377 | // Use a GtkEventBox for the title and borders. Using m_widget for this | |
378 | // almost works, except that setting the resize cursor has no effect. | |
379 | GtkWidget* eventbox = gtk_event_box_new(); | |
380 | gtk_widget_add_events(eventbox, | |
381 | GDK_POINTER_MOTION_MASK | | |
382 | GDK_POINTER_MOTION_HINT_MASK); | |
383 | gtk_widget_show(eventbox); | |
384 | // Use a GtkAlignment to position m_mainWidget inside the decorations | |
385 | GtkWidget* alignment = gtk_alignment_new(0, 0, 1, 1); | |
386 | gtk_alignment_set_padding(GTK_ALIGNMENT(alignment), | |
387 | m_miniTitle + m_miniEdge, m_miniEdge, m_miniEdge, m_miniEdge); | |
388 | gtk_widget_show(alignment); | |
389 | // The GtkEventBox and GtkAlignment go between m_widget and m_mainWidget | |
390 | gtk_widget_reparent(m_mainWidget, alignment); | |
391 | gtk_container_add(GTK_CONTAINER(eventbox), alignment); | |
392 | gtk_container_add(GTK_CONTAINER(m_widget), eventbox); | |
393 | ||
394 | m_gdkDecor = 0; | |
395 | m_gdkFunc = 0; | |
396 | if (style & wxRESIZE_BORDER) | |
397 | m_gdkFunc = GDK_FUNC_RESIZE; | |
398 | gtk_window_set_default_size(GTK_WINDOW(m_widget), m_width, m_height); | |
399 | memset(&m_decorSize, 0, sizeof(m_decorSize)); | |
400 | m_deferShow = false; | |
401 | ||
402 | if (m_parent && (GTK_IS_WINDOW(m_parent->m_widget))) | |
403 | { | |
404 | gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) ); | |
405 | } | |
406 | ||
407 | if (m_miniTitle && (style & wxCLOSE_BOX)) | |
408 | { | |
409 | wxImage img = wxBitmap((const char*)close_bits, 16, 16).ConvertToImage(); | |
410 | img.Replace(0,0,0,123,123,123); | |
411 | img.SetMaskColour(123,123,123); | |
412 | m_closeButton = wxBitmap( img ); | |
413 | } | |
414 | ||
415 | /* these are called when the borders are drawn */ | |
416 | #ifdef __WXGTK3__ | |
417 | g_signal_connect_after(eventbox, "draw", G_CALLBACK(draw), this); | |
418 | #else | |
419 | g_signal_connect_after(eventbox, "expose_event", G_CALLBACK(expose_event), this); | |
420 | #endif | |
421 | ||
422 | /* these are required for dragging the mini frame around */ | |
423 | g_signal_connect (eventbox, "button_press_event", | |
424 | G_CALLBACK (gtk_window_button_press_callback), this); | |
425 | g_signal_connect (eventbox, "button_release_event", | |
426 | G_CALLBACK (gtk_window_button_release_callback), this); | |
427 | g_signal_connect (eventbox, "motion_notify_event", | |
428 | G_CALLBACK (gtk_window_motion_notify_callback), this); | |
429 | g_signal_connect (eventbox, "leave_notify_event", | |
430 | G_CALLBACK (gtk_window_leave_callback), this); | |
431 | return true; | |
432 | } | |
433 | ||
434 | void wxMiniFrame::DoGetClientSize(int* width, int* height) const | |
435 | { | |
436 | wxFrame::DoGetClientSize(width, height); | |
437 | ||
438 | if (m_useCachedClientSize) | |
439 | return; | |
440 | ||
441 | if (width) | |
442 | { | |
443 | *width -= 2 * m_miniEdge; | |
444 | if (*width < 0) *width = 0; | |
445 | } | |
446 | if (height) | |
447 | { | |
448 | *height -= m_miniTitle + 2 * m_miniEdge; | |
449 | if (*height < 0) *height = 0; | |
450 | } | |
451 | } | |
452 | ||
453 | // Keep min size at least as large as decorations | |
454 | void wxMiniFrame::DoSetSizeHints(int minW, int minH, int maxW, int maxH, int incW, int incH) | |
455 | { | |
456 | const int w = 2 * m_miniEdge; | |
457 | const int h = 2 * m_miniEdge + m_miniTitle; | |
458 | if (minW < w) minW = w; | |
459 | if (minH < h) minH = h; | |
460 | wxFrame::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH); | |
461 | } | |
462 | ||
463 | void wxMiniFrame::SetTitle( const wxString &title ) | |
464 | { | |
465 | wxFrame::SetTitle( title ); | |
466 | ||
467 | GdkWindow* window = gtk_widget_get_window(gtk_bin_get_child(GTK_BIN(m_widget))); | |
468 | if (window) | |
469 | gdk_window_invalidate_rect(window, NULL, false); | |
470 | } | |
471 | ||
472 | #endif // wxUSE_MINIFRAME |