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weston/clients/transformed.c

305 lines
7.6 KiB

/*
* Copyright © 2008 Kristian Høgsberg
* Copyright © 2012 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <errno.h>
#include <cairo.h>
#include <linux/input.h>
#include <wayland-client.h>
#include "window.h"
struct transformed {
struct display *display;
struct window *window;
struct widget *widget;
int width, height;
int fullscreen;
};
static void
draw_stuff(cairo_t *cr, int width, int height)
{
cairo_matrix_t m;
cairo_get_matrix (cr, &m);
cairo_translate(cr, width / 2, height / 2);
cairo_scale(cr, width / 2, height / 2);
cairo_set_source_rgba(cr, 0, 0, 0.3, 1.0);
cairo_set_source_rgba(cr, 0, 0, 0, 1.0);
cairo_rectangle(cr, -1, -1, 2, 2);
cairo_fill(cr);
cairo_set_source_rgb(cr, 1, 0, 0);
cairo_move_to(cr, 0, 0);
cairo_line_to(cr, 0, -1);
cairo_save(cr);
cairo_set_matrix(cr, &m);
cairo_set_line_width(cr, 2.0);
cairo_stroke(cr);
cairo_restore(cr);
cairo_set_source_rgb(cr, 0, 1, 0);
cairo_move_to(cr, 0, 0);
cairo_line_to(cr, 1, 0);
cairo_save(cr);
cairo_set_matrix(cr, &m);
cairo_set_line_width(cr, 2.0);
cairo_stroke(cr);
cairo_restore(cr);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_move_to(cr, 0, 0);
cairo_line_to(cr, 0, 1);
cairo_move_to(cr, 0, 0);
cairo_line_to(cr, -1, 0);
cairo_save(cr);
cairo_set_matrix(cr, &m);
cairo_set_line_width(cr, 2.0);
cairo_stroke(cr);
cairo_restore(cr);
cairo_destroy(cr);
}
static void
fullscreen_handler(struct window *window, void *data)
{
struct transformed *transformed = data;
transformed->fullscreen ^= 1;
window_set_fullscreen(window, transformed->fullscreen);
}
static void
redraw_handler(struct widget *widget, void *data)
{
struct transformed *transformed = data;
struct rectangle allocation;
cairo_surface_t *surface;
cairo_t *cr;
surface = window_get_surface(transformed->window);
if (surface == NULL ||
cairo_surface_status(surface) != CAIRO_STATUS_SUCCESS) {
fprintf(stderr, "failed to create cairo egl surface\n");
return;
}
widget_get_allocation(transformed->widget, &allocation);
cr = widget_cairo_create(widget);
draw_stuff(cr, allocation.width, allocation.height);
cairo_surface_destroy(surface);
}
static void
output_handler(struct window *window, struct output *output, int enter,
void *data)
{
if (!enter)
return;
window_set_buffer_transform(window, output_get_transform(output));
window_set_buffer_scale(window, output_get_scale(output));
window_schedule_redraw(window);
}
static void
key_handler(struct window *window, struct input *input, uint32_t time,
uint32_t key, uint32_t sym, enum wl_keyboard_key_state state,
void *data)
{
int transform, scale;
if (state == WL_KEYBOARD_KEY_STATE_RELEASED)
return;
transform = window_get_buffer_transform (window);
scale = window_get_buffer_scale (window);
switch (sym) {
case XKB_KEY_Left:
if (transform == 0)
transform = 3;
else if (transform == 4)
transform = 7;
else
transform--;
break;
case XKB_KEY_Right:
if (transform == 3)
transform = 0;
else if (transform == 7)
transform = 4;
else
transform++;
break;
case XKB_KEY_space:
if (transform >= 4)
transform -= 4;
else
transform += 4;
break;
case XKB_KEY_z:
if (scale == 1)
scale = 2;
else
scale = 1;
break;
}
printf ("setting buffer transform to %d\n", transform);
printf ("setting buffer scale to %d\n", scale);
window_set_buffer_transform(window, transform);
window_set_buffer_scale(window, scale);
window_schedule_redraw(window);
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button, enum wl_pointer_button_state state, void *data)
{
struct transformed *transformed = data;
switch (button) {
case BTN_LEFT:
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
window_move(transformed->window, input,
display_get_serial(transformed->display));
break;
case BTN_MIDDLE:
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
widget_schedule_redraw(widget);
break;
case BTN_RIGHT:
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
window_show_frame_menu(transformed->window, input, time);
break;
}
}
static void
touch_handler(struct widget *widget, struct input *input,
uint32_t serial, uint32_t time, int32_t id,
float x, float y, void *data)
{
struct transformed *transformed = data;
window_move(transformed->window, input, display_get_serial(transformed->display));
}
static void
usage(int error_code)
{
fprintf(stderr, "Usage: transformed [OPTIONS]\n\n"
" -w <width>\tSet window width to <width>\n"
" -h <height>\tSet window height to <height>\n"
" --help\tShow this help text\n\n");
fprintf(stderr, "This version has been fixed for "
"https://gitlab.freedesktop.org/wayland/weston/issues/99 .\n");
exit(error_code);
}
int main(int argc, char *argv[])
{
struct transformed transformed;
struct display *d;
int i;
transformed.width = 500;
transformed.height = 250;
transformed.fullscreen = 0;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-w") == 0) {
if (++i >= argc)
usage(EXIT_FAILURE);
transformed.width = atol(argv[i]);
} else if (strcmp(argv[i], "-h") == 0) {
if (++i >= argc)
usage(EXIT_FAILURE);
transformed.height = atol(argv[i]);
} else if (strcmp(argv[i], "--help") == 0)
usage(EXIT_SUCCESS);
else
usage(EXIT_FAILURE);
}
d = display_create(&argc, argv);
if (d == NULL) {
fprintf(stderr, "failed to create display: %s\n",
strerror(errno));
return -1;
}
transformed.display = d;
transformed.window = window_create(d);
transformed.widget =
window_add_widget(transformed.window, &transformed);
window_set_title(transformed.window, "Transformed");
window_set_appid(transformed.window,
"org.freedesktop.weston.transformed");
widget_set_transparent(transformed.widget, 0);
widget_set_default_cursor(transformed.widget, CURSOR_BLANK);
widget_set_redraw_handler(transformed.widget, redraw_handler);
widget_set_button_handler(transformed.widget, button_handler);
widget_set_touch_down_handler(transformed.widget, touch_handler);
window_set_key_handler(transformed.window, key_handler);
window_set_fullscreen_handler(transformed.window, fullscreen_handler);
window_set_output_handler(transformed.window, output_handler);
window_set_user_data(transformed.window, &transformed);
window_schedule_resize(transformed.window,
transformed.width, transformed.height);
display_run(d);
widget_destroy(transformed.widget);
window_destroy(transformed.window);
display_destroy(d);
return 0;
}