radiant/cursor: get the display from the widget, attempt to support multiple displays...

[xonotic/netradiant.git] / libs / gtkutil / cursor.cpp

diff --git a/libs/gtkutil/cursor.cpp b/libs/gtkutil/cursor.cpp
index 407735c9553bf24c4d49d924c25584b8793bfd1b..42b1123ca05cd8f56fe4e30efdd93918e67495fc 100644 (file)
--- a/libs/gtkutil/cursor.cpp
+++ b/libs/gtkutil/cursor.cpp
@@ -24,41 +24,107 @@
 #include "stream/textstream.h"
 
 #include <string.h>
-#include <gdk/gdkcursor.h>
-#include <gdk/gdkpixmap.h>
-
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
 
 GdkCursor* create_blank_cursor(){
-       GdkPixmap *pixmap;
-       GdkBitmap *mask;
-       char buffer [( 32 * 32 ) / 8];
-       memset( buffer, 0, ( 32 * 32 ) / 8 );
-       GdkColor white = {0, 0xffff, 0xffff, 0xffff};
-       GdkColor black = {0, 0x0000, 0x0000, 0x0000};
-       pixmap = gdk_bitmap_create_from_data( 0, buffer, 32, 32 );
-       mask   = gdk_bitmap_create_from_data( 0, buffer, 32, 32 );
-       GdkCursor *cursor = gdk_cursor_new_from_pixmap( pixmap, mask, &white, &black, 1, 1 );
-       gdk_drawable_unref( pixmap );
-       gdk_drawable_unref( mask );
-
-       return cursor;
+       return gdk_cursor_new( GDK_BLANK_CURSOR );
 }
 
-void blank_cursor( GtkWidget* widget ){
-       GdkCursor* cursor = create_blank_cursor();
-       gdk_window_set_cursor( widget->window, cursor );
+void set_cursor( ui::Widget widget, GdkCursorType cursor_type ){
+       GdkCursor* cursor = gdk_cursor_new( cursor_type );
+       gdk_window_set_cursor( gtk_widget_get_window( widget ), cursor );
        gdk_cursor_unref( cursor );
 }
 
-void default_cursor( GtkWidget* widget ){
-       gdk_window_set_cursor( widget->window, 0 );
+void blank_cursor( ui::Widget widget ){
+       set_cursor( widget, GDK_BLANK_CURSOR );
+}
+
+void default_cursor( ui::Widget widget ){
+       gdk_window_set_cursor( gtk_widget_get_window( widget ), NULL );
+}
+
+void Sys_GetCursorPos( ui::Widget widget, int *x, int *y ){
+       GdkDisplay *display = gtk_widget_get_display( GTK_WIDGET( widget ) );
+       // No need to store the screen, it will be recovered from widget again.
+       gdk_display_get_pointer( display, NULL, x, y, NULL );
 }
 
+void Sys_SetCursorPos( ui::Widget widget, int x, int y ){
+       GdkDisplay *display = gtk_widget_get_display( GTK_WIDGET( widget ) );
+       GdkScreen *screen = gtk_widget_get_screen( GTK_WIDGET( widget ) );
+       gdk_display_warp_pointer( display, screen, x, y );
+}
+
+gboolean DeferredMotion::gtk_motion(ui::Widget widget, GdkEventMotion *event, DeferredMotion *self)
+{
+    self->motion( event->x, event->y, event->state );
+    return FALSE;
+}
 
-void Sys_GetCursorPos( GtkWindow* window, int *x, int *y ){
-       gdk_display_get_pointer( gdk_display_get_default(), 0, x, y, 0 );
+gboolean FreezePointer::motion_delta(ui::Widget widget, GdkEventMotion *event, FreezePointer *self)
+{
+       int current_x, current_y;
+       Sys_GetCursorPos( widget, &current_x, &current_y );
+       int dx = current_x - self->last_x;
+       int dy = current_y - self->last_y;
+       self->last_x = current_x;
+       self->last_y = current_y;
+       if ( dx != 0 || dy != 0 ) {
+               //globalOutputStream() << "motion x: " << dx << ", y: " << dy << "\n";
+               int ddx = current_x - self->recorded_x;
+               int ddy = current_y - self->recorded_y;
+               if (ddx < -32 || ddx > 32 || ddy < -32 || ddy > 32) {
+                       Sys_SetCursorPos( widget, self->recorded_x, self->recorded_y );
+                       self->last_x = self->recorded_x;
+                       self->last_y = self->recorded_y;
+               }
+               self->m_function( dx, dy, event->state, self->m_data );
+       }
+       return FALSE;
 }
 
-void Sys_SetCursorPos( GtkWindow* window, int x, int y ){
-       gdk_display_warp_pointer( gdk_display_get_default(), 0, x, y );
+void FreezePointer::freeze_pointer(ui::Widget widget, FreezePointer::MotionDeltaFunction function, void *data)
+{
+       ASSERT_MESSAGE( m_function == 0, "can't freeze pointer" );
+
+       const GdkEventMask mask = static_cast<GdkEventMask>( GDK_POINTER_MOTION_MASK
+                                                                                                                | GDK_POINTER_MOTION_HINT_MASK
+                                                                                                                | GDK_BUTTON_MOTION_MASK
+                                                                                                                | GDK_BUTTON1_MOTION_MASK
+                                                                                                                | GDK_BUTTON2_MOTION_MASK
+                                                                                                                | GDK_BUTTON3_MOTION_MASK
+                                                                                                                | GDK_BUTTON_PRESS_MASK
+                                                                                                                | GDK_BUTTON_RELEASE_MASK
+                                                                                                                | GDK_VISIBILITY_NOTIFY_MASK );
+
+       GdkCursor* cursor = create_blank_cursor();
+       //GdkGrabStatus status =
+       gdk_pointer_grab( gtk_widget_get_window( widget ), TRUE, mask, 0, cursor, GDK_CURRENT_TIME );
+       gdk_cursor_unref( cursor );
+
+       Sys_GetCursorPos( widget, &recorded_x, &recorded_y );
+
+       Sys_SetCursorPos( widget, recorded_x, recorded_y );
+
+       last_x = recorded_x;
+       last_y = recorded_y;
+
+       m_function = function;
+       m_data = data;
+
+       handle_motion = widget.connect( "motion_notify_event", G_CALLBACK( motion_delta ), this );
+}
+
+void FreezePointer::unfreeze_pointer(ui::Widget widget)
+{
+       g_signal_handler_disconnect( G_OBJECT( widget ), handle_motion );
+
+       m_function = 0;
+       m_data = 0;
+
+       Sys_SetCursorPos( widget, recorded_x, recorded_y );
+
+       gdk_pointer_ungrab( GDK_CURRENT_TIME );
 }