132 lines
4.3 KiB
C++
132 lines
4.3 KiB
C++
/*
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Copyright (C) 2001-2006, William Joseph.
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All Rights Reserved.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "cursor.h"
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#include "stream/textstream.h"
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#include <string.h>
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#include <gdk/gdk.h>
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#include <gtk/gtk.h>
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GdkCursor *create_blank_cursor()
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{
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return gdk_cursor_new(GDK_BLANK_CURSOR);
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}
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void blank_cursor(ui::Widget widget)
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{
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GdkCursor *cursor = create_blank_cursor();
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gdk_window_set_cursor(gtk_widget_get_window(widget), cursor);
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gdk_cursor_unref(cursor);
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}
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void default_cursor(ui::Widget widget)
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{
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gdk_window_set_cursor(gtk_widget_get_window(widget), 0);
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}
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void Sys_GetCursorPos(ui::Window window, int *x, int *y)
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{
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gdk_display_get_pointer(gdk_display_get_default(), 0, x, y, 0);
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}
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void Sys_SetCursorPos(ui::Window window, int x, int y)
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{
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GdkScreen *screen;
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gdk_display_get_pointer(gdk_display_get_default(), &screen, 0, 0, 0);
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gdk_display_warp_pointer(gdk_display_get_default(), screen, x, y);
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}
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gboolean DeferredMotion::gtk_motion(ui::Widget widget, GdkEventMotion *event, DeferredMotion *self)
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{
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self->motion(event->x, event->y, event->state);
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return FALSE;
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}
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gboolean FreezePointer::motion_delta(ui::Window widget, GdkEventMotion *event, FreezePointer *self)
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{
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int current_x, current_y;
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Sys_GetCursorPos(widget, ¤t_x, ¤t_y);
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int dx = current_x - self->last_x;
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int dy = current_y - self->last_y;
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int ddx = current_x - self->recorded_x;
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int ddy = current_y - self->recorded_y;
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self->last_x = current_x;
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self->last_y = current_y;
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if (dx != 0 || dy != 0) {
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//globalOutputStream() << "motion x: " << dx << ", y: " << dy << "\n";
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if (ddx < -32 || ddx > 32 || ddy < -32 || ddy > 32) {
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Sys_SetCursorPos(widget, self->recorded_x, self->recorded_y);
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self->last_x = self->recorded_x;
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self->last_y = self->recorded_y;
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}
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self->m_function(dx, dy, event->state, self->m_data);
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}
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return FALSE;
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}
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void FreezePointer::freeze_pointer(ui::Window window, FreezePointer::MotionDeltaFunction function, void *data)
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{
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ASSERT_MESSAGE(m_function == 0, "can't freeze pointer");
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const GdkEventMask mask = static_cast<GdkEventMask>( GDK_POINTER_MOTION_MASK
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| GDK_POINTER_MOTION_HINT_MASK
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| GDK_BUTTON_MOTION_MASK
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| GDK_BUTTON1_MOTION_MASK
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| GDK_BUTTON2_MOTION_MASK
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| GDK_BUTTON3_MOTION_MASK
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| GDK_BUTTON_PRESS_MASK
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| GDK_BUTTON_RELEASE_MASK
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| GDK_VISIBILITY_NOTIFY_MASK );
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GdkCursor *cursor = create_blank_cursor();
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//GdkGrabStatus status =
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gdk_pointer_grab(gtk_widget_get_window(window), TRUE, mask, 0, cursor, GDK_CURRENT_TIME);
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gdk_cursor_unref(cursor);
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Sys_GetCursorPos(window, &recorded_x, &recorded_y);
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Sys_SetCursorPos(window, recorded_x, recorded_y);
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last_x = recorded_x;
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last_y = recorded_y;
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m_function = function;
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m_data = data;
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handle_motion = window.connect("motion_notify_event", G_CALLBACK(motion_delta), this);
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}
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void FreezePointer::unfreeze_pointer(ui::Window window)
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{
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g_signal_handler_disconnect(G_OBJECT(window), handle_motion);
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m_function = 0;
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m_data = 0;
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Sys_SetCursorPos(window, recorded_x, recorded_y);
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gdk_pointer_ungrab(GDK_CURRENT_TIME);
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}
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