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