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294 | /* CDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <cdk/cdkwindow.h>
#include <windowsx.h>
#include <objbase.h>
#include "cdkwin32.h"
#include "cdkdevice-wintab.h"
G_DEFINE_TYPE (CdkDeviceWintab, cdk_device_wintab, CDK_TYPE_DEVICE)
static gboolean
cdk_device_wintab_get_history (CdkDevice *device,
CdkWindow *window,
guint32 start,
guint32 stop,
CdkTimeCoord ***events,
gint *n_events)
{
return FALSE;
}
static CdkModifierType
get_current_mask (void)
{
CdkModifierType mask;
BYTE kbd[256];
GetKeyboardState (kbd);
mask = 0;
if (kbd[VK_SHIFT] & 0x80)
mask |= CDK_SHIFT_MASK;
if (kbd[VK_CAPITAL] & 0x80)
mask |= CDK_LOCK_MASK;
if (kbd[VK_CONTROL] & 0x80)
mask |= CDK_CONTROL_MASK;
if (kbd[VK_MENU] & 0x80)
mask |= CDK_MOD1_MASK;
if (kbd[VK_LBUTTON] & 0x80)
mask |= CDK_BUTTON1_MASK;
if (kbd[VK_MBUTTON] & 0x80)
mask |= CDK_BUTTON2_MASK;
if (kbd[VK_RBUTTON] & 0x80)
mask |= CDK_BUTTON3_MASK;
return mask;
}
static void
cdk_device_wintab_get_state (CdkDevice *device,
CdkWindow *window,
gdouble *axes,
CdkModifierType *mask)
{
CdkDeviceWintab *device_wintab;
device_wintab = CDK_DEVICE_WINTAB (device);
/* For now just use the last known button and axis state of the device.
* Since graphical tablets send an insane amount of motion events each
* second, the info should be fairly up to date */
if (mask)
{
*mask = get_current_mask ();
*mask &= 0xFF; /* Mask away core pointer buttons */
*mask |= ((device_wintab->button_state << 8)
& (CDK_BUTTON1_MASK | CDK_BUTTON2_MASK
| CDK_BUTTON3_MASK | CDK_BUTTON4_MASK
| CDK_BUTTON5_MASK));
}
if (axes && device_wintab->last_axis_data)
_cdk_device_wintab_translate_axes (device_wintab, window, axes, NULL, NULL);
}
static void
cdk_device_wintab_set_window_cursor (CdkDevice *device,<--- Parameter 'device' can be declared as pointer to const
CdkWindow *window,<--- Parameter 'window' can be declared as pointer to const
CdkCursor *cursor)<--- Parameter 'cursor' can be declared as pointer to const
{
}
static void
cdk_device_wintab_warp (CdkDevice *device,<--- Parameter 'device' can be declared as pointer to const
CdkScreen *screen,<--- Parameter 'screen' can be declared as pointer to const
gdouble x,
gdouble y)
{
}
static void
cdk_device_wintab_query_state (CdkDevice *device,
CdkWindow *window,
CdkWindow **root_window,
CdkWindow **child_window,
gdouble *root_x,
gdouble *root_y,
gdouble *win_x,
gdouble *win_y,
CdkModifierType *mask)
{
CdkDeviceWintab *device_wintab;
CdkScreen *screen;
POINT point;
HWND hwnd, hwndc;
CdkWindowImplWin32 *impl;<--- Variable 'impl' can be declared as pointer to const
device_wintab = CDK_DEVICE_WINTAB (device);
screen = cdk_window_get_screen (window);
impl = CDK_WINDOW_IMPL_WIN32 (window->impl);
hwnd = CDK_WINDOW_HWND (window);
GetCursorPos (&point);
if (root_x)
*root_x = point.x / impl->window_scale;
if (root_y)
*root_y = point.y / impl->window_scale;
ScreenToClient (hwnd, &point);
if (win_x)
*win_x = point.x / impl->window_scale;
if (win_y)
*win_y = point.y / impl->window_scale;
if (window == cdk_get_default_root_window ())
{
if (win_x)
*win_x += _cdk_offset_x;
if (win_y)
*win_y += _cdk_offset_y;
}
if (child_window)
{
hwndc = ChildWindowFromPoint (hwnd, point);
if (hwndc && hwndc != hwnd)
*child_window = cdk_win32_handle_table_lookup (hwndc);
else
*child_window = NULL; /* Direct child unknown to cdk */
}
if (root_window)
*root_window = cdk_screen_get_root_window (screen);
if (mask)
{
*mask = get_current_mask ();
*mask &= 0xFF; /* Mask away core pointer buttons */
*mask |= ((device_wintab->button_state << 8)
& (CDK_BUTTON1_MASK | CDK_BUTTON2_MASK
| CDK_BUTTON3_MASK | CDK_BUTTON4_MASK
| CDK_BUTTON5_MASK));
}
}
static CdkGrabStatus
cdk_device_wintab_grab (CdkDevice *device,<--- Parameter 'device' can be declared as pointer to const
CdkWindow *window,<--- Parameter 'window' can be declared as pointer to const
gboolean owner_events,
CdkEventMask event_mask,
CdkWindow *confine_to,<--- Parameter 'confine_to' can be declared as pointer to const
CdkCursor *cursor,<--- Parameter 'cursor' can be declared as pointer to const
guint32 time_)
{
return CDK_GRAB_SUCCESS;
}
static void
cdk_device_wintab_ungrab (CdkDevice *device,<--- Parameter 'device' can be declared as pointer to const
guint32 time_)
{
}
static CdkWindow *
cdk_device_wintab_window_at_position (CdkDevice *device,<--- Parameter 'device' can be declared as pointer to const
gdouble *win_x,<--- Parameter 'win_x' can be declared as pointer to const
gdouble *win_y,<--- Parameter 'win_y' can be declared as pointer to const
CdkModifierType *mask,<--- Parameter 'mask' can be declared as pointer to const
gboolean get_toplevel)
{
return NULL;
}
static void
cdk_device_wintab_select_window_events (CdkDevice *device,<--- Parameter 'device' can be declared as pointer to const
CdkWindow *window,<--- Parameter 'window' can be declared as pointer to const
CdkEventMask event_mask)
{
}
void
_cdk_device_wintab_translate_axes (CdkDeviceWintab *device_wintab,
CdkWindow *window,
gdouble *axes,
gdouble *x,
gdouble *y)
{
CdkDevice *device;
CdkWindow *impl_window;
gint root_x, root_y;
gdouble temp_x, temp_y;
gint i;
device = CDK_DEVICE (device_wintab);
impl_window = _cdk_window_get_impl_window (window);
temp_x = temp_y = 0;
cdk_window_get_origin (impl_window, &root_x, &root_y);
for (i = 0; i < cdk_device_get_n_axes (device); i++)
{
CdkAxisUse use;
use = cdk_device_get_axis_use (device, i);
switch (use)
{
case CDK_AXIS_X:
case CDK_AXIS_Y:
if (cdk_device_get_mode (device) == CDK_MODE_WINDOW)
_cdk_device_translate_window_coord (device, window, i,
device_wintab->last_axis_data[i],
&axes[i]);
else
_cdk_device_translate_screen_coord (device, window,
root_x, root_y, i,
device_wintab->last_axis_data[i],
&axes[i]);
if (use == CDK_AXIS_X)
temp_x = axes[i];
else if (use == CDK_AXIS_Y)
temp_y = axes[i];
break;
default:
_cdk_device_translate_axis (device, i,
device_wintab->last_axis_data[i],
&axes[i]);
break;
}
}
if (x)
*x = temp_x;
if (y)
*y = temp_y;
}
static void
cdk_device_wintab_class_init (CdkDeviceWintabClass *klass)
{
CdkDeviceClass *device_class = CDK_DEVICE_CLASS (klass);
device_class->get_history = cdk_device_wintab_get_history;
device_class->get_state = cdk_device_wintab_get_state;
device_class->set_window_cursor = cdk_device_wintab_set_window_cursor;<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here
device_class->warp = cdk_device_wintab_warp;<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here
device_class->query_state = cdk_device_wintab_query_state;
device_class->grab = cdk_device_wintab_grab;<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here
device_class->ungrab = cdk_device_wintab_ungrab;<--- You might need to cast the function pointer here
device_class->window_at_position = cdk_device_wintab_window_at_position;<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here
device_class->select_window_events = cdk_device_wintab_select_window_events;<--- You might need to cast the function pointer here<--- You might need to cast the function pointer here
}
static void
cdk_device_wintab_init (CdkDeviceWintab *device_wintab)<--- Parameter 'device_wintab' can be declared as pointer to const
{
}
|