--- /dev/null
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#if !defined(INCLUDED_GTKUTIL_CURSOR_H)
+#define INCLUDED_GTKUTIL_CURSOR_H
+
+#include <glib/gmain.h>
+#include <gdk/gdkevents.h>
+#include <gtk/gtkwidget.h>
+#include <gtk/gtkwindow.h>
+
+#include "debugging/debugging.h"
+
+typedef struct _GdkCursor GdkCursor;
+typedef struct _GtkWidget GtkWidget;
+typedef struct _GtkWindow GtkWindow;
+
+GdkCursor* create_blank_cursor();
+void blank_cursor(GtkWidget* widget);
+void default_cursor(GtkWidget* widget);
+void Sys_GetCursorPos(GtkWindow* window, int *x, int *y);
+void Sys_SetCursorPos(GtkWindow* window, int x, int y);
+
+
+
+class DeferredMotion
+{
+ guint m_handler;
+ typedef void(*MotionFunction)(gdouble x, gdouble y, guint state, void* data);
+ MotionFunction m_function;
+ void* m_data;
+ gdouble m_x;
+ gdouble m_y;
+ guint m_state;
+
+ static gboolean deferred(DeferredMotion* self)
+ {
+ self->m_handler = 0;
+ self->m_function(self->m_x, self->m_y, self->m_state, self->m_data);
+ return FALSE;
+ }
+public:
+ DeferredMotion(MotionFunction function, void* data) : m_handler(0), m_function(function), m_data(data)
+ {
+ }
+ void motion(gdouble x, gdouble y, guint state)
+ {
+ m_x = x;
+ m_y = y;
+ m_state = state;
+ if(m_handler == 0)
+ {
+ m_handler = g_idle_add((GSourceFunc)deferred, this);
+ }
+ }
+ static gboolean gtk_motion(GtkWidget *widget, GdkEventMotion *event, DeferredMotion* self)
+ {
+ self->motion(event->x, event->y, event->state);
+ return FALSE;
+ }
+};
+
+class DeferredMotionDelta
+{
+ int m_delta_x;
+ int m_delta_y;
+ guint m_motion_handler;
+ typedef void (*MotionDeltaFunction)(int x, int y, void* data);
+ MotionDeltaFunction m_function;
+ void* m_data;
+
+ static gboolean deferred_motion(gpointer data)
+ {
+ reinterpret_cast<DeferredMotionDelta*>(data)->m_function(
+ reinterpret_cast<DeferredMotionDelta*>(data)->m_delta_x,
+ reinterpret_cast<DeferredMotionDelta*>(data)->m_delta_y,
+ reinterpret_cast<DeferredMotionDelta*>(data)->m_data
+ );
+ reinterpret_cast<DeferredMotionDelta*>(data)->m_motion_handler = 0;
+ reinterpret_cast<DeferredMotionDelta*>(data)->m_delta_x = 0;
+ reinterpret_cast<DeferredMotionDelta*>(data)->m_delta_y = 0;
+ return FALSE;
+ }
+public:
+ DeferredMotionDelta(MotionDeltaFunction function, void* data) : m_delta_x(0), m_delta_y(0), m_motion_handler(0), m_function(function), m_data(data)
+ {
+ }
+ void flush()
+ {
+ if(m_motion_handler != 0)
+ {
+ g_source_remove(m_motion_handler);
+ deferred_motion(this);
+ }
+ }
+ void motion_delta(int x, int y, unsigned int state)
+ {
+ m_delta_x += x;
+ m_delta_y += y;
+ if(m_motion_handler == 0)
+ {
+ m_motion_handler = g_idle_add(deferred_motion, this);
+ }
+ }
+};
+
+class FreezePointer
+{
+ unsigned int handle_motion;
+ int recorded_x, recorded_y;
+ typedef void (*MotionDeltaFunction)(int x, int y, unsigned int state, void* data);
+ MotionDeltaFunction m_function;
+ void* m_data;
+public:
+ FreezePointer() : handle_motion(0), m_function(0), m_data(0)
+ {
+ }
+ static gboolean motion_delta(GtkWidget *widget, GdkEventMotion *event, FreezePointer* self)
+ {
+ int current_x, current_y;
+ Sys_GetCursorPos(GTK_WINDOW(widget), ¤t_x, ¤t_y);
+ int dx = current_x - self->recorded_x;
+ int dy = current_y - self->recorded_y;
+ if(dx != 0 || dy != 0)
+ {
+ //globalOutputStream() << "motion x: " << dx << ", y: " << dy << "\n";
+ Sys_SetCursorPos(GTK_WINDOW(widget), self->recorded_x, self->recorded_y);
+ self->m_function(dx, dy, event->state, self->m_data);
+ }
+ return FALSE;
+ }
+
+ void freeze_pointer(GtkWindow* window, 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(window)->window, TRUE, mask, 0, cursor, GDK_CURRENT_TIME);
+ gdk_cursor_unref(cursor);
+
+ Sys_GetCursorPos(window, &recorded_x, &recorded_y);
+
+ Sys_SetCursorPos(window, recorded_x, recorded_y);
+
+ m_function = function;
+ m_data = data;
+
+ handle_motion = g_signal_connect(G_OBJECT(window), "motion_notify_event", G_CALLBACK(motion_delta), this);
+ }
+
+ void unfreeze_pointer(GtkWindow* window)
+ {
+ g_signal_handler_disconnect(G_OBJECT(window), handle_motion);
+
+ m_function = 0;
+ m_data = 0;
+
+ Sys_SetCursorPos(window, recorded_x, recorded_y);
+
+ gdk_pointer_ungrab(GDK_CURRENT_TIME);
+ }
+};
+
+#endif
projects / voretournament / voretournament.git / blobdiff