src/gtk/minifram.cpp

   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 #include "wx/minifram.h"
  14
  15 #if wxUSE_MINIFRAME
  16
  17 #include "wx/dcscreen.h"
  18
  19 #include "gtk/gtk.h"
  20 #include "wx/gtk/win_gtk.h"
  21 #include "wx/gtk/private.h"
  22
  23 #include <gdk/gdk.h>
  24 #include <gdk/gdkprivate.h>
  25 #include <gdk/gdkx.h>
  26
  27 //-----------------------------------------------------------------------------
  28 // idle system
  29 //-----------------------------------------------------------------------------
  30
  31 extern void wxapp_install_idle_handler();
  32 extern bool g_isIdle;
  33
  34 //-----------------------------------------------------------------------------
  35 // data
  36 //-----------------------------------------------------------------------------
  37
  38 extern bool        g_blockEventsOnDrag;
  39 extern bool        g_blockEventsOnScroll;
  40 extern GtkWidget  *wxGetRootWindow();
  41
  42 //-----------------------------------------------------------------------------
  43 // local functions
  44 //-----------------------------------------------------------------------------
  45
  46 /* draw XOR rectangle when moving mine frame around */
  47
  48 static void DrawFrame( GtkWidget *widget, int x, int y, int w, int h )
  49 {
  50     int org_x = 0;
  51     int org_y = 0;
  52     gdk_window_get_origin( widget->window, &org_x, &org_y );
  53     x += org_x;
  54     y += org_y;
  55
  56     GdkGC *gc = gdk_gc_new( GDK_ROOT_PARENT() );
  57     gdk_gc_set_subwindow( gc, GDK_INCLUDE_INFERIORS );
  58     gdk_gc_set_function( gc, GDK_INVERT );
  59
  60     gdk_draw_rectangle( GDK_ROOT_PARENT(), gc, FALSE, x, y, w, h );
  61     gdk_gc_unref( gc );
  62 }
  63
  64 //-----------------------------------------------------------------------------
  65 // "expose_event" of m_mainWidget
  66 //-----------------------------------------------------------------------------
  67
  68 extern "C" {
  69 static void gtk_window_own_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_event, wxFrame *win )
  70 {
  71     if (g_isIdle) wxapp_install_idle_handler();
  72
  73     if (!win->m_hasVMT) return;
  74     if (gdk_event->count > 0) return;
  75
  76     GtkPizza *pizza = GTK_PIZZA(widget);
  77
  78     gtk_paint_shadow (widget->style,
  79                       pizza->bin_window,
  80                       GTK_STATE_NORMAL,
  81                       GTK_SHADOW_OUT,
  82                       NULL, NULL, NULL, // FIXME: No clipping?
  83                       0, 0,
  84                       win->m_width, win->m_height);
  85
  86     if (!win->GetTitle().empty() &&
  87         ((win->GetWindowStyle() & wxCAPTION) ||
  88          (win->GetWindowStyle() & wxTINY_CAPTION_HORIZ) ||
  89          (win->GetWindowStyle() & wxTINY_CAPTION_VERT)))
  90     {
  91         wxClientDC dc(win);
  92         dc.SetFont( *wxSMALL_FONT );
  93         int height = dc.GetCharHeight();
  94
  95         GdkGC *gc = gdk_gc_new( pizza->bin_window );
  96         gdk_gc_set_foreground( gc, &widget->style->bg[GTK_STATE_SELECTED] );
  97         gdk_draw_rectangle( pizza->bin_window, gc, TRUE,
  98                             3,
  99                             3,
 100                             win->m_width - 7,
 101                             height+1 );
 102         gdk_gc_unref( gc );
 103
 104         // Hack alert
 105         dc.m_window = pizza->bin_window;
 106         dc.SetTextForeground( *wxWHITE );
 107         dc.DrawText( win->GetTitle(), 6, 3 );
 108     }
 109 }
 110 }
 111
 112 //-----------------------------------------------------------------------------
 113 // "button_press_event" of m_mainWidget
 114 //-----------------------------------------------------------------------------
 115
 116 extern "C" {
 117 static gint gtk_window_button_press_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxMiniFrame *win )
 118 {
 119     if (g_isIdle) wxapp_install_idle_handler();
 120
 121     if (!win->m_hasVMT) return FALSE;
 122     if (g_blockEventsOnDrag) return TRUE;
 123     if (g_blockEventsOnScroll) return TRUE;
 124
 125     if (win->m_isDragging) return TRUE;
 126
 127     GtkPizza *pizza = GTK_PIZZA(widget);
 128     if (gdk_event->window != pizza->bin_window) return TRUE;
 129
 130     wxClientDC dc(win);
 131     dc.SetFont( *wxSMALL_FONT );
 132     int height = dc.GetCharHeight() + 1;
 133
 134     if (gdk_event->y > height) return TRUE;
 135
 136     gdk_window_raise( win->m_widget->window );
 137
 138     gdk_pointer_grab( widget->window, FALSE,
 139                       (GdkEventMask)
 140                          (GDK_BUTTON_PRESS_MASK |
 141                           GDK_BUTTON_RELEASE_MASK |
 142                           GDK_POINTER_MOTION_MASK        |
 143                           GDK_POINTER_MOTION_HINT_MASK  |
 144                           GDK_BUTTON_MOTION_MASK        |
 145                           GDK_BUTTON1_MOTION_MASK),
 146                       (GdkWindow *) NULL,
 147                       (GdkCursor *) NULL,
 148                       (unsigned int) GDK_CURRENT_TIME );
 149
 150     win->m_diffX = (int)gdk_event->x;
 151     win->m_diffY = (int)gdk_event->y;
 152     DrawFrame( widget, 0, 0, win->m_width, win->m_height );
 153     win->m_oldX = 0;
 154     win->m_oldY = 0;
 155
 156     win->m_isDragging = true;
 157
 158     return TRUE;
 159 }
 160 }
 161
 162 //-----------------------------------------------------------------------------
 163 // "button_release_event" of m_mainWidget
 164 //-----------------------------------------------------------------------------
 165
 166 extern "C" {
 167 static gint gtk_window_button_release_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxMiniFrame *win )
 168 {
 169     if (g_isIdle) wxapp_install_idle_handler();
 170
 171     if (!win->m_hasVMT) return FALSE;
 172     if (g_blockEventsOnDrag) return TRUE;
 173     if (g_blockEventsOnScroll) return TRUE;
 174
 175     if (!win->m_isDragging) return TRUE;
 176
 177     win->m_isDragging = FALSE;
 178
 179     int x = (int)gdk_event->x;
 180     int y = (int)gdk_event->y;
 181
 182     DrawFrame( widget, win->m_oldX, win->m_oldY, win->m_width, win->m_height );
 183     gdk_pointer_ungrab ( (guint32)GDK_CURRENT_TIME );
 184     int org_x = 0;
 185     int org_y = 0;
 186     gdk_window_get_origin( widget->window, &org_x, &org_y );
 187     x += org_x - win->m_diffX;
 188     y += org_y - win->m_diffY;
 189     win->m_x = x;
 190     win->m_y = y;
 191     gtk_window_move( GTK_WINDOW(win->m_widget), x, y );
 192
 193     return TRUE;
 194 }
 195 }
 196
 197 //-----------------------------------------------------------------------------
 198 // "motion_notify_event" of m_mainWidget
 199 //-----------------------------------------------------------------------------
 200
 201 extern "C" {
 202 static gint gtk_window_motion_notify_callback( GtkWidget *widget, GdkEventMotion *gdk_event, wxMiniFrame *win )
 203 {
 204     if (g_isIdle) wxapp_install_idle_handler();
 205
 206     if (!win->m_hasVMT) return FALSE;
 207     if (g_blockEventsOnDrag) return TRUE;
 208     if (g_blockEventsOnScroll) return TRUE;
 209
 210     if (!win->m_isDragging) return TRUE;
 211
 212     if (gdk_event->is_hint)
 213     {
 214        int x = 0;
 215        int y = 0;
 216        GdkModifierType state;
 217        gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
 218        gdk_event->x = x;
 219        gdk_event->y = y;
 220        gdk_event->state = state;
 221     }
 222
 223     DrawFrame( widget, win->m_oldX, win->m_oldY, win->m_width, win->m_height );
 224     win->m_oldX = (int)gdk_event->x - win->m_diffX;
 225     win->m_oldY = (int)gdk_event->y - win->m_diffY;
 226     DrawFrame( widget, win->m_oldX, win->m_oldY, win->m_width, win->m_height );
 227
 228     return TRUE;
 229 }
 230 }
 231
 232 //-----------------------------------------------------------------------------
 233 // "clicked" of X system button
 234 //-----------------------------------------------------------------------------
 235
 236 extern "C" {
 237 static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxMiniFrame *mf )
 238 {
 239     if (g_isIdle) wxapp_install_idle_handler();
 240
 241     mf->Close();
 242 }
 243 }
 244
 245 //-----------------------------------------------------------------------------
 246 // wxMiniFrame
 247 //-----------------------------------------------------------------------------
 248
 249 static const char *cross_xpm[] = {
 250 /* columns rows colors chars-per-pixel */
 251 "5 5 2 1",
 252 "# c Gray0",
 253 "  c None",
 254 /* pixels */
 255 "#   #",
 256 " # # ",
 257 "  #  ",
 258 " # # ",
 259 "#   #",
 260 };
 261
 262 IMPLEMENT_DYNAMIC_CLASS(wxMiniFrame,wxFrame)
 263
 264 bool wxMiniFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title,
 265       const wxPoint &pos, const wxSize &size,
 266       long style, const wxString &name )
 267 {
 268     style = style | wxCAPTION;
 269
 270     if ((style & wxCAPTION) || (style & wxTINY_CAPTION_HORIZ) || (style & wxTINY_CAPTION_VERT))
 271         m_miniTitle = 13;
 272
 273     m_miniEdge = 3;
 274     m_isDragging = false;
 275     m_oldX = -1;
 276     m_oldY = -1;
 277     m_diffX = 0;
 278     m_diffY = 0;
 279
 280     wxFrame::Create( parent, id, title, pos, size, style, name );
 281
 282     if (m_parent && (GTK_IS_WINDOW(m_parent->m_widget)))
 283     {
 284         gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) );
 285     }
 286
 287     if ((style & wxSYSTEM_MENU) &&
 288         ((style & wxCAPTION) || (style & wxTINY_CAPTION_HORIZ) || (style & wxTINY_CAPTION_VERT)))
 289     {
 290         GdkBitmap *mask = (GdkBitmap*) NULL;
 291         GdkPixmap *pixmap = gdk_pixmap_create_from_xpm_d
 292                             (
 293                                 wxGetRootWindow()->window,
 294                                 &mask,
 295                                 NULL,
 296                                 (char **)cross_xpm
 297                             );
 298
 299         GtkWidget *pw = gtk_pixmap_new( pixmap, mask );
 300         gdk_bitmap_unref( mask );
 301         gdk_pixmap_unref( pixmap );
 302         gtk_widget_show( pw );
 303
 304         GtkWidget *close_button = gtk_button_new();
 305         gtk_container_add( GTK_CONTAINER(close_button), pw );
 306
 307         gtk_pizza_put( GTK_PIZZA(m_mainWidget),
 308                          close_button,
 309                          size.x-16, 4, 11, 11 );
 310
 311         gtk_widget_show( close_button );
 312
 313         g_signal_connect (close_button, "clicked",
 314                           G_CALLBACK (gtk_button_clicked_callback),
 315                           this);
 316     }
 317
 318     /* these are called when the borders are drawn */
 319     g_signal_connect (m_mainWidget, "expose_event",
 320                       G_CALLBACK (gtk_window_own_expose_callback), this );
 321
 322     /* these are required for dragging the mini frame around */
 323     g_signal_connect (m_mainWidget, "button_press_event",
 324                       G_CALLBACK (gtk_window_button_press_callback), this);
 325     g_signal_connect (m_mainWidget, "button_release_event",
 326                       G_CALLBACK (gtk_window_button_release_callback), this);
 327     g_signal_connect (m_mainWidget, "motion_notify_event",
 328                       G_CALLBACK (gtk_window_motion_notify_callback), this);
 329
 330     return true;
 331 }
 332
 333 void wxMiniFrame::SetTitle( const wxString &title )
 334 {
 335     wxFrame::SetTitle( title );
 336
 337     gdk_window_invalidate_rect( GTK_PIZZA(m_mainWidget)->bin_window, NULL, true );
 338 }
 339
 340 #endif