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