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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2014
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* region
*/
#include "xrdp.h"
#if defined(XRDP_PIXMAN)
#include <pixman.h>
#else
#include "pixman-region.h"
#endif
/*****************************************************************************/
struct xrdp_region *APP_CC
xrdp_region_create(struct xrdp_wm *wm)
{
struct xrdp_region *self;
self = (struct xrdp_region *)g_malloc(sizeof(struct xrdp_region), 1);
self->wm = wm;
self->reg = (struct pixman_region16 *)
g_malloc(sizeof(struct pixman_region16), 1);
pixman_region_init(self->reg);
return self;
}
/*****************************************************************************/
void APP_CC
xrdp_region_delete(struct xrdp_region *self)
{
if (self == 0)
{
return;
}
pixman_region_fini(self->reg);
g_free(self->reg);
g_free(self);
}
/*****************************************************************************/
/* returns error */
int APP_CC
xrdp_region_add_rect(struct xrdp_region *self, struct xrdp_rect *rect)
{
struct pixman_region16 lreg;
pixman_region_init_rect(&lreg, rect->left, rect->top,
rect->right - rect->left,
rect->bottom - rect->top);
if (!pixman_region_union(self->reg, self->reg, &lreg))
{
pixman_region_fini(&lreg);
return 1;
}
pixman_region_fini(&lreg);
return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
xrdp_region_subtract_rect(struct xrdp_region *self, struct xrdp_rect *rect)
{
struct pixman_region16 lreg;
pixman_region_init_rect(&lreg, rect->left, rect->top,
rect->right - rect->left,
rect->bottom - rect->top);
if (!pixman_region_subtract(self->reg, self->reg, &lreg))
{
pixman_region_fini(&lreg);
return 1;
}
pixman_region_fini(&lreg);
return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
xrdp_region_intersect_rect(struct xrdp_region* self, struct xrdp_rect* rect)
{
struct pixman_region16 lreg;
pixman_region_init_rect(&lreg, rect->left, rect->top,
rect->right - rect->left,
rect->bottom - rect->top);
if (!pixman_region_intersect(self->reg, self->reg, &lreg))
{
pixman_region_fini(&lreg);
return 1;
}
pixman_region_fini(&lreg);
return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
xrdp_region_get_rect(struct xrdp_region *self, int index,
struct xrdp_rect *rect)
{
struct pixman_box16 *box;
int count;
box = pixman_region_rectangles(self->reg, &count);
if ((box != 0) && (index >= 0) && (index < count))
{
rect->left = box[index].x1;
rect->top = box[index].y1;
rect->right = box[index].x2;
rect->bottom = box[index].y2;
return 0;
}
return 1;
}
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