worldspawn/libs/gtkutil/cursor.h
2020-11-17 12:16:16 +01:00

146 lines
4.1 KiB
C++

/*
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 <uilib/uilib.h>
#include "debugging/debugging.h"
typedef struct _GdkCursor GdkCursor;
typedef struct _GdkEventMotion GdkEventMotion;
GdkCursor *create_blank_cursor();
void blank_cursor(ui::Widget widget);
void default_cursor(ui::Widget widget);
void Sys_GetCursorPos(ui::Window window, int *x, int *y);
void Sys_SetCursorPos(ui::Window 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(ui::Widget widget, GdkEventMotion *event, DeferredMotion *self);
};
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, last_x, last_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(ui::Window widget, GdkEventMotion *event, FreezePointer *self);
void freeze_pointer(ui::Window window, MotionDeltaFunction function, void *data);
void unfreeze_pointer(ui::Window window);
};
#endif