Commit 7c221d27 authored by Kristian Høgsberg's avatar Kristian Høgsberg
Browse files

Add window resize sample client

This is an example of how to animate window resizing.  The size is
animated by a simple physics model that allows the user to cancel the
animation halfway and still look good.
parent 3a1b4815
noinst_PROGRAMS = gears flower screenshot terminal image view dnd smoke
noinst_PROGRAMS = gears flower screenshot terminal image view dnd smoke resizor
noinst_LTLIBRARIES = libtoytoolkit.la
INCLUDES = \
......@@ -29,6 +29,7 @@ terminal_SOURCES = terminal.c
image_SOURCES = image.c
view_SOURCES = view.c
dnd_SOURCES = dnd.c
resizor_SOURCES = resizor.c
BUILT_SOURCES = \
screenshooter-client-protocol.h \
......
/*
* Copyright © 2010 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <cairo.h>
#include "wayland-util.h"
#include "wayland-client.h"
#include "wayland-glib.h"
#include "window.h"
#include <X11/keysym.h>
struct resizor {
struct display *display;
struct window *window;
struct rectangle child_allocation;
struct {
double current;
double target;
double previous;
} height;
};
static void
resizor_draw(struct resizor *resizor)
{
cairo_surface_t *surface;
cairo_t *cr;
window_draw(resizor->window);
window_get_child_rectangle(resizor->window,
&resizor->child_allocation);
surface = window_get_surface(resizor->window);
cr = cairo_create(surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_rectangle(cr,
resizor->child_allocation.x,
resizor->child_allocation.y,
resizor->child_allocation.width,
resizor->child_allocation.height);
cairo_set_source_rgba(cr, 0, 0, 0, 0.8);
cairo_fill(cr);
cairo_destroy(cr);
cairo_surface_destroy(surface);
window_flush(resizor->window);
}
static void
redraw_handler(struct window *window, void *data)
{
struct resizor *resizor = data;
resizor_draw(resizor);
}
static void
keyboard_focus_handler(struct window *window,
struct input *device, void *data)
{
struct resizor *resizor = data;
window_schedule_redraw(resizor->window);
}
static void
frame_callback(void *data, uint32_t time)
{
struct resizor *resizor = data;
double force, height;
height = resizor->height.current;
force = (resizor->height.target - height) / 10.0 +
(resizor->height.previous - height);
resizor->height.current =
height + (height - resizor->height.previous) + force;
resizor->height.previous = height;
if (resizor->height.current >= 400) {
resizor->height.current = 400;
resizor->height.previous = 400;
}
if (resizor->height.current <= 200) {
resizor->height.current = 200;
resizor->height.previous = 200;
}
resizor->child_allocation.height = height + 0.5;
window_set_child_size(resizor->window,
&resizor->child_allocation);
if ((int) (height + 0.5) != resizor->height.target) {
window_schedule_redraw(resizor->window);
wl_display_frame_callback(display_get_display(resizor->display),
frame_callback, resizor);
}
}
static void
key_handler(struct window *window, uint32_t key, uint32_t sym,
uint32_t state, uint32_t modifiers, void *data)
{
struct resizor *resizor = data;
if (state == 0)
return;
switch (sym) {
case XK_F1:
resizor->height.target = 400;
resizor->height.current = resizor->child_allocation.height;
frame_callback(resizor, 0);
break;
case XK_F2:
resizor->height.target = 200;
resizor->height.current = resizor->child_allocation.height;
frame_callback(resizor, 0);
break;
}
}
static struct resizor *
resizor_create(struct display *display)
{
struct resizor *resizor;
resizor = malloc(sizeof *resizor);
if (resizor == NULL)
return resizor;
memset(resizor, 0, sizeof *resizor);
resizor->window = window_create(display, "Wayland Resizor",
100, 100, 500, 400);
resizor->display = display;
window_set_key_handler(resizor->window, key_handler);
window_set_user_data(resizor->window, resizor);
window_set_redraw_handler(resizor->window, redraw_handler);
window_set_keyboard_focus_handler(resizor->window,
keyboard_focus_handler);
resizor->child_allocation.x = 0;
resizor->child_allocation.y = 0;
resizor->child_allocation.width = 300;
resizor->child_allocation.height = 400;
resizor->height.current = 400;
resizor->height.previous = 400;
resizor->height.target = 400;
window_set_child_size(resizor->window, &resizor->child_allocation);
resizor_draw(resizor);
return resizor;
}
int
main(int argc, char *argv[])
{
struct display *d;
d = display_create(&argc, &argv, NULL);
if (d == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return -1;
}
resizor_create (d);
display_run(d);
return 0;
}
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment