2016-03-15 13:14:00 +03:00
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/*
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* Copyright © 2010 Intel Corporation
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* Copyright © 2012 Collabora, Ltd.
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* Copyright © 2012 Jonas Ådahl
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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2014-11-26 12:47:29 +03:00
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#include <stdbool.h>
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2016-03-15 13:14:00 +03:00
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <cairo.h>
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#include <math.h>
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#include <assert.h>
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#include <sys/timerfd.h>
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#include <sys/epoll.h>
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#include <unistd.h>
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#include <linux/input.h>
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#include <wayland-client.h>
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#include "window.h"
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#include "shared/helpers.h"
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#include "shared/xalloc.h"
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2015-05-08 09:18:11 +03:00
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#define NUM_COMPLEX_REGION_RECTS 9
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static int32_t option_complex_confine_region;
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static int32_t option_help;
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2016-03-15 13:14:00 +03:00
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struct confine {
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struct display *display;
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struct window *window;
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struct widget *widget;
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cairo_surface_t *buffer;
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struct {
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int32_t x, y;
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int32_t old_x, old_y;
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} line;
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int reset;
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struct input *cursor_timeout_input;
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int cursor_timeout_fd;
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struct task cursor_timeout_task;
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2014-11-26 12:47:29 +03:00
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bool pointer_confined;
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2015-05-08 09:18:11 +03:00
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bool complex_confine_region_enabled;
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bool complex_confine_region_dirty;
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struct rectangle complex_confine_region[NUM_COMPLEX_REGION_RECTS];
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2016-03-15 13:14:00 +03:00
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};
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static void
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draw_line(struct confine *confine, cairo_t *cr,
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struct rectangle *allocation)
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{
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cairo_t *bcr;
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cairo_surface_t *tmp_buffer = NULL;
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if (confine->reset) {
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tmp_buffer = confine->buffer;
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confine->buffer = NULL;
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confine->line.x = -1;
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confine->line.y = -1;
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confine->line.old_x = -1;
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confine->line.old_y = -1;
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confine->reset = 0;
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}
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if (confine->buffer == NULL) {
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confine->buffer =
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cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
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allocation->width,
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allocation->height);
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bcr = cairo_create(confine->buffer);
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cairo_set_source_rgba(bcr, 0, 0, 0, 0);
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cairo_rectangle(bcr,
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0, 0,
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allocation->width, allocation->height);
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cairo_fill(bcr);
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}
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else
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bcr = cairo_create(confine->buffer);
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if (tmp_buffer) {
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cairo_set_source_surface(bcr, tmp_buffer, 0, 0);
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cairo_rectangle(bcr, 0, 0,
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allocation->width, allocation->height);
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cairo_clip(bcr);
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cairo_paint(bcr);
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cairo_surface_destroy(tmp_buffer);
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}
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if (confine->line.x != -1 && confine->line.y != -1) {
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if (confine->line.old_x != -1 &&
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confine->line.old_y != -1) {
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cairo_set_line_width(bcr, 2.0);
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cairo_set_source_rgb(bcr, 1, 1, 1);
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cairo_translate(bcr,
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-allocation->x, -allocation->y);
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cairo_move_to(bcr,
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confine->line.old_x,
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confine->line.old_y);
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cairo_line_to(bcr,
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confine->line.x,
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confine->line.y);
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cairo_stroke(bcr);
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}
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confine->line.old_x = confine->line.x;
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confine->line.old_y = confine->line.y;
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}
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cairo_destroy(bcr);
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cairo_set_source_surface(cr, confine->buffer,
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allocation->x, allocation->y);
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cairo_set_operator(cr, CAIRO_OPERATOR_ADD);
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cairo_rectangle(cr,
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allocation->x, allocation->y,
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allocation->width, allocation->height);
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cairo_clip(cr);
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cairo_paint(cr);
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}
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2015-05-08 09:18:11 +03:00
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static void
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calculate_complex_confine_region(struct confine *confine)
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{
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struct rectangle allocation;
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int32_t x, y, w, h;
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struct rectangle *rs = confine->complex_confine_region;
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if (!confine->complex_confine_region_dirty)
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return;
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widget_get_allocation(confine->widget, &allocation);
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x = allocation.x;
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y = allocation.y;
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w = allocation.width;
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h = allocation.height;
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/*
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* The code below constructs a region made up of rectangles that
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* is then used to set up both an illustrative shaded region in the
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* widget and a confine region used when confining the pointer.
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*/
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rs[0].x = x + (int)round(w * 0.05);
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rs[0].y = y + (int)round(h * 0.15);
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rs[0].width = (int)round(w * 0.35);
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rs[0].height = (int)round(h * 0.7);
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rs[1].x = rs[0].x + rs[0].width;
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rs[1].y = y + (int)round(h * 0.45);
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rs[1].width = (int)round(w * 0.09);
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rs[1].height = (int)round(h * 0.1);
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rs[2].x = rs[1].x + rs[1].width;
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rs[2].y = y + (int)round(h * 0.48);
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rs[2].width = (int)round(w * 0.02);
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rs[2].height = (int)round(h * 0.04);
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rs[3].x = rs[2].x + rs[2].width;
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rs[3].y = y + (int)round(h * 0.45);
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rs[3].width = (int)round(w * 0.09);
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rs[3].height = (int)round(h * 0.1);
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rs[4].x = rs[3].x + rs[3].width;
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rs[4].y = y + (int)round(h * 0.15);
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rs[4].width = (int)round(w * 0.35);
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rs[4].height = (int)round(h * 0.7);
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rs[5].x = x + (int)round(w * 0.05);
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rs[5].y = y + (int)round(h * 0.05);
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rs[5].width = rs[0].width + rs[1].width + rs[2].width +
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rs[3].width + rs[4].width;
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rs[5].height = (int)round(h * 0.10);
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rs[6].x = x + (int)round(w * 0.1);
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rs[6].y = rs[4].y + rs[4].height + (int)round(h * 0.02);
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rs[6].width = (int)round(w * 0.8);
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rs[6].height = (int)round(h * 0.03);
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rs[7].x = x + (int)round(w * 0.05);
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rs[7].y = rs[6].y + rs[6].height;
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rs[7].width = (int)round(w * 0.9);
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rs[7].height = (int)round(h * 0.03);
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rs[8].x = x + (int)round(w * 0.1);
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rs[8].y = rs[7].y + rs[7].height;
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rs[8].width = (int)round(w * 0.8);
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rs[8].height = (int)round(h * 0.03);
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confine->complex_confine_region_dirty = false;
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}
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static void
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draw_complex_confine_region_mask(struct confine *confine, cairo_t *cr)
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{
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int i;
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calculate_complex_confine_region(confine);
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
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for (i = 0; i < NUM_COMPLEX_REGION_RECTS; i++) {
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cairo_rectangle(cr,
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confine->complex_confine_region[i].x,
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confine->complex_confine_region[i].y,
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confine->complex_confine_region[i].width,
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confine->complex_confine_region[i].height);
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cairo_set_source_rgba(cr, 0.14, 0.14, 0.14, 0.9);
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cairo_fill(cr);
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}
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}
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2016-03-15 13:14:00 +03:00
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static void
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redraw_handler(struct widget *widget, void *data)
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{
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struct confine *confine = data;
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cairo_surface_t *surface;
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cairo_t *cr;
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struct rectangle allocation;
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widget_get_allocation(confine->widget, &allocation);
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surface = window_get_surface(confine->window);
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cr = cairo_create(surface);
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
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cairo_rectangle(cr,
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allocation.x,
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allocation.y,
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allocation.width,
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allocation.height);
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cairo_set_source_rgba(cr, 0, 0, 0, 0.8);
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cairo_fill(cr);
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2015-05-08 09:18:11 +03:00
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if (confine->complex_confine_region_enabled) {
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draw_complex_confine_region_mask(confine, cr);
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}
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2016-03-15 13:14:00 +03:00
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draw_line(confine, cr, &allocation);
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cairo_destroy(cr);
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cairo_surface_destroy(surface);
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}
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static void
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keyboard_focus_handler(struct window *window,
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struct input *device, void *data)
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{
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struct confine *confine = data;
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window_schedule_redraw(confine->window);
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}
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static void
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key_handler(struct window *window, struct input *input, uint32_t time,
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uint32_t key, uint32_t sym,
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enum wl_keyboard_key_state state, void *data)
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{
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struct confine *confine = data;
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if (state == WL_KEYBOARD_KEY_STATE_RELEASED)
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return;
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switch (sym) {
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case XKB_KEY_Escape:
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display_exit(confine->display);
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break;
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2015-05-08 08:54:44 +03:00
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case XKB_KEY_BackSpace:
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cairo_surface_destroy(confine->buffer);
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confine->buffer = NULL;
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window_schedule_redraw(confine->window);
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break;
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2015-06-25 12:45:01 +03:00
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case XKB_KEY_m:
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window_set_maximized(confine->window,
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!window_is_maximized(window));
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break;
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2016-03-15 13:14:00 +03:00
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}
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}
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2014-11-26 12:47:29 +03:00
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static void
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toggle_pointer_confine(struct confine *confine, struct input *input)
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{
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if (confine->pointer_confined) {
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window_unconfine_pointer(confine->window);
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2015-05-08 09:18:11 +03:00
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} else if (confine->complex_confine_region_enabled) {
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calculate_complex_confine_region(confine);
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window_confine_pointer_to_rectangles(
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confine->window,
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input,
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confine->complex_confine_region,
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NUM_COMPLEX_REGION_RECTS);
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2014-11-26 12:47:29 +03:00
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} else {
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window_confine_pointer_to_widget(confine->window,
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confine->widget,
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input);
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}
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confine->pointer_confined = !confine->pointer_confined;
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}
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static void
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button_handler(struct widget *widget,
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struct input *input, uint32_t time,
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uint32_t button,
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enum wl_pointer_button_state state, void *data)
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{
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struct confine *confine = data;
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bool is_pressed = state == WL_POINTER_BUTTON_STATE_PRESSED;
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if (is_pressed && button == BTN_LEFT)
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toggle_pointer_confine(confine, input);
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widget_schedule_redraw(widget);
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}
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2016-03-15 13:14:00 +03:00
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static void
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cursor_timeout_reset(struct confine *confine)
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{
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const long cursor_timeout = 500;
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struct itimerspec its;
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its.it_interval.tv_sec = 0;
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its.it_interval.tv_nsec = 0;
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its.it_value.tv_sec = cursor_timeout / 1000;
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its.it_value.tv_nsec = (cursor_timeout % 1000) * 1000 * 1000;
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timerfd_settime(confine->cursor_timeout_fd, 0, &its, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
motion_handler(struct widget *widget,
|
|
|
|
struct input *input, uint32_t time,
|
|
|
|
float x, float y, void *data)
|
|
|
|
{
|
|
|
|
struct confine *confine = data;
|
|
|
|
confine->line.x = x;
|
|
|
|
confine->line.y = y;
|
|
|
|
|
|
|
|
window_schedule_redraw(confine->window);
|
|
|
|
|
|
|
|
cursor_timeout_reset(confine);
|
|
|
|
confine->cursor_timeout_input = input;
|
|
|
|
|
|
|
|
return CURSOR_BLANK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
resize_handler(struct widget *widget,
|
|
|
|
int32_t width, int32_t height,
|
|
|
|
void *data)
|
|
|
|
{
|
|
|
|
struct confine *confine = data;
|
|
|
|
|
|
|
|
confine->reset = 1;
|
2015-05-08 09:18:11 +03:00
|
|
|
|
2015-06-25 12:45:01 +03:00
|
|
|
if (confine->complex_confine_region_enabled) {
|
2015-05-08 09:18:11 +03:00
|
|
|
confine->complex_confine_region_dirty = true;
|
2015-06-25 12:45:01 +03:00
|
|
|
|
|
|
|
if (confine->pointer_confined) {
|
|
|
|
calculate_complex_confine_region(confine);
|
|
|
|
window_update_confine_rectangles(
|
|
|
|
confine->window,
|
|
|
|
confine->complex_confine_region,
|
|
|
|
NUM_COMPLEX_REGION_RECTS);
|
|
|
|
}
|
|
|
|
}
|
2016-03-15 13:14:00 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
leave_handler(struct widget *widget,
|
|
|
|
struct input *input, void *data)
|
|
|
|
{
|
|
|
|
struct confine *confine = data;
|
|
|
|
|
|
|
|
confine->reset = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
cursor_timeout_func(struct task *task, uint32_t events)
|
|
|
|
{
|
|
|
|
struct confine *confine =
|
|
|
|
container_of(task, struct confine, cursor_timeout_task);
|
|
|
|
uint64_t exp;
|
|
|
|
|
|
|
|
if (read(confine->cursor_timeout_fd, &exp, sizeof (uint64_t)) !=
|
|
|
|
sizeof(uint64_t))
|
|
|
|
abort();
|
|
|
|
|
|
|
|
input_set_pointer_image(confine->cursor_timeout_input,
|
|
|
|
CURSOR_LEFT_PTR);
|
|
|
|
}
|
|
|
|
|
2014-11-26 12:47:29 +03:00
|
|
|
static void
|
|
|
|
pointer_unconfined(struct window *window, struct input *input, void *data)
|
|
|
|
{
|
|
|
|
struct confine *confine = data;
|
|
|
|
|
|
|
|
confine->pointer_confined = false;
|
|
|
|
}
|
|
|
|
|
2016-03-15 13:14:00 +03:00
|
|
|
static struct confine *
|
|
|
|
confine_create(struct display *display)
|
|
|
|
{
|
|
|
|
struct confine *confine;
|
|
|
|
|
|
|
|
confine = xzalloc(sizeof *confine);
|
|
|
|
confine->window = window_create(display);
|
|
|
|
confine->widget = window_frame_create(confine->window, confine);
|
|
|
|
window_set_title(confine->window, "Wayland Confine");
|
|
|
|
confine->display = display;
|
|
|
|
confine->buffer = NULL;
|
|
|
|
|
|
|
|
window_set_key_handler(confine->window, key_handler);
|
|
|
|
window_set_user_data(confine->window, confine);
|
|
|
|
window_set_keyboard_focus_handler(confine->window,
|
|
|
|
keyboard_focus_handler);
|
2014-11-26 12:47:29 +03:00
|
|
|
window_set_pointer_confined_handler(confine->window,
|
|
|
|
NULL,
|
|
|
|
pointer_unconfined);
|
2016-03-15 13:14:00 +03:00
|
|
|
|
|
|
|
widget_set_redraw_handler(confine->widget, redraw_handler);
|
2014-11-26 12:47:29 +03:00
|
|
|
widget_set_button_handler(confine->widget, button_handler);
|
2016-03-15 13:14:00 +03:00
|
|
|
widget_set_motion_handler(confine->widget, motion_handler);
|
|
|
|
widget_set_resize_handler(confine->widget, resize_handler);
|
|
|
|
widget_set_leave_handler(confine->widget, leave_handler);
|
|
|
|
|
|
|
|
widget_schedule_resize(confine->widget, 500, 400);
|
|
|
|
confine->line.x = -1;
|
|
|
|
confine->line.y = -1;
|
|
|
|
confine->line.old_x = -1;
|
|
|
|
confine->line.old_y = -1;
|
|
|
|
confine->reset = 0;
|
|
|
|
|
|
|
|
confine->cursor_timeout_fd =
|
|
|
|
timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
|
|
|
|
confine->cursor_timeout_task.run = cursor_timeout_func;
|
|
|
|
display_watch_fd(window_get_display(confine->window),
|
|
|
|
confine->cursor_timeout_fd,
|
|
|
|
EPOLLIN, &confine->cursor_timeout_task);
|
|
|
|
|
|
|
|
return confine;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
confine_destroy(struct confine *confine)
|
|
|
|
{
|
|
|
|
display_unwatch_fd(window_get_display(confine->window),
|
|
|
|
confine->cursor_timeout_fd);
|
|
|
|
close(confine->cursor_timeout_fd);
|
|
|
|
if (confine->buffer)
|
|
|
|
cairo_surface_destroy(confine->buffer);
|
|
|
|
widget_destroy(confine->widget);
|
|
|
|
window_destroy(confine->window);
|
|
|
|
free(confine);
|
|
|
|
}
|
|
|
|
|
2015-05-08 09:18:11 +03:00
|
|
|
static const struct weston_option confine_options[] = {
|
|
|
|
{ WESTON_OPTION_BOOLEAN, "complex-confine-region", 0, &option_complex_confine_region },
|
|
|
|
{ WESTON_OPTION_BOOLEAN, "help", 0, &option_help },
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
print_help(const char *argv0)
|
|
|
|
{
|
|
|
|
printf("Usage: %s [--complex-confine-region]\n", argv0);
|
|
|
|
}
|
|
|
|
|
2016-03-15 13:14:00 +03:00
|
|
|
int
|
|
|
|
main(int argc, char *argv[])
|
|
|
|
{
|
|
|
|
struct display *display;
|
|
|
|
struct confine *confine;
|
|
|
|
|
2015-05-08 09:18:11 +03:00
|
|
|
if (parse_options(confine_options,
|
|
|
|
ARRAY_LENGTH(confine_options),
|
|
|
|
&argc, argv) > 1 ||
|
|
|
|
option_help) {
|
|
|
|
print_help(argv[0]);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2016-03-15 13:14:00 +03:00
|
|
|
display = display_create(&argc, argv);
|
|
|
|
if (display == NULL) {
|
|
|
|
fprintf(stderr, "failed to create display: %m\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
confine = confine_create(display);
|
|
|
|
|
2015-05-08 09:18:11 +03:00
|
|
|
if (option_complex_confine_region) {
|
|
|
|
confine->complex_confine_region_dirty = true;
|
|
|
|
confine->complex_confine_region_enabled = true;
|
|
|
|
}
|
|
|
|
|
2016-03-15 13:14:00 +03:00
|
|
|
display_run(display);
|
|
|
|
|
|
|
|
confine_destroy(confine);
|
|
|
|
display_destroy(display);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|