clickdot: a copy of resizor
Start a new application clickdot as a copy of resizor, with the name
changed.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
diff --git a/clients/clickdot.c b/clients/clickdot.c
new file mode 100644
index 0000000..a707037
--- /dev/null
+++ b/clients/clickdot.c
@@ -0,0 +1,259 @@
+/*
+ * 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 <math.h>
+#include <assert.h>
+
+#include <linux/input.h>
+#include <wayland-client.h>
+
+#include "window.h"
+
+#include <X11/keysym.h>
+
+struct clickdot {
+ struct display *display;
+ struct window *window;
+ struct widget *widget;
+ struct window *menu;
+ int32_t width;
+
+ struct {
+ double current;
+ double target;
+ double previous;
+ } height;
+ struct wl_callback *frame_callback;
+};
+
+static void
+frame_callback(void *data, struct wl_callback *callback, uint32_t time)
+{
+ struct clickdot *clickdot = data;
+ double force, height;
+
+ assert(!callback || callback == clickdot->frame_callback);
+
+ height = clickdot->height.current;
+ force = (clickdot->height.target - height) / 10.0 +
+ (clickdot->height.previous - height);
+
+ clickdot->height.current =
+ height + (height - clickdot->height.previous) + force;
+ clickdot->height.previous = height;
+
+ if (clickdot->height.current >= 400) {
+ clickdot->height.current = 400;
+ clickdot->height.previous = 400;
+ }
+
+ if (clickdot->height.current <= 200) {
+ clickdot->height.current = 200;
+ clickdot->height.previous = 200;
+ }
+
+ widget_schedule_resize(clickdot->widget, clickdot->width, height + 0.5);
+
+ if (clickdot->frame_callback) {
+ wl_callback_destroy(clickdot->frame_callback);
+ clickdot->frame_callback = NULL;
+ }
+}
+
+static const struct wl_callback_listener listener = {
+ frame_callback
+};
+
+static void
+redraw_handler(struct widget *widget, void *data)
+{
+ struct clickdot *clickdot = data;
+ cairo_surface_t *surface;
+ cairo_t *cr;
+ struct rectangle allocation;
+
+ widget_get_allocation(clickdot->widget, &allocation);
+
+ surface = window_get_surface(clickdot->window);
+
+ cr = cairo_create(surface);
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ cairo_rectangle(cr,
+ allocation.x,
+ allocation.y,
+ allocation.width,
+ allocation.height);
+ cairo_set_source_rgba(cr, 0, 0, 0, 0.8);
+ cairo_fill(cr);
+ cairo_destroy(cr);
+
+ cairo_surface_destroy(surface);
+
+ if (fabs(clickdot->height.previous - clickdot->height.target) > 0.1) {
+ clickdot->frame_callback =
+ wl_surface_frame(
+ window_get_wl_surface(clickdot->window));
+ wl_callback_add_listener(clickdot->frame_callback, &listener,
+ clickdot);
+ }
+
+}
+
+static void
+keyboard_focus_handler(struct window *window,
+ struct input *device, void *data)
+{
+ struct clickdot *clickdot = data;
+
+ window_schedule_redraw(clickdot->window);
+}
+
+static void
+key_handler(struct window *window, struct input *input, uint32_t time,
+ uint32_t key, uint32_t sym, uint32_t state, void *data)
+{
+ struct clickdot *clickdot = data;
+
+ if (state == 0)
+ return;
+
+ switch (sym) {
+ case XK_Down:
+ clickdot->height.target = 400;
+ frame_callback(clickdot, NULL, 0);
+ break;
+ case XK_Up:
+ clickdot->height.target = 200;
+ frame_callback(clickdot, NULL, 0);
+ break;
+ case XK_Escape:
+ display_exit(clickdot->display);
+ break;
+ }
+}
+
+static void
+menu_func(struct window *window, int index, void *user_data)
+{
+ fprintf(stderr, "picked entry %d\n", index);
+}
+
+static void
+show_menu(struct clickdot *clickdot, struct input *input, uint32_t time)
+{
+ int32_t x, y;
+ static const char *entries[] = {
+ "Roy", "Pris", "Leon", "Zhora"
+ };
+
+ input_get_position(input, &x, &y);
+ window_show_menu(clickdot->display, input, time, clickdot->window,
+ x - 10, y - 10, menu_func, entries, 4);
+}
+
+static void
+button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ int button, int state, void *data)
+{
+ struct clickdot *clickdot = data;
+
+ switch (button) {
+ case BTN_RIGHT:
+ if (state)
+ show_menu(clickdot, input, time);
+ break;
+ }
+}
+
+static struct clickdot *
+clickdot_create(struct display *display)
+{
+ struct clickdot *clickdot;
+ int32_t height;
+
+ clickdot = malloc(sizeof *clickdot);
+ if (clickdot == NULL)
+ return clickdot;
+ memset(clickdot, 0, sizeof *clickdot);
+
+ clickdot->window = window_create(display, 500, 400);
+ clickdot->widget = frame_create(clickdot->window, clickdot);
+ window_set_title(clickdot->window, "Wayland Resizor");
+ clickdot->display = display;
+
+ window_set_key_handler(clickdot->window, key_handler);
+ window_set_user_data(clickdot->window, clickdot);
+ widget_set_redraw_handler(clickdot->widget, redraw_handler);
+ window_set_keyboard_focus_handler(clickdot->window,
+ keyboard_focus_handler);
+
+ clickdot->width = 300;
+ clickdot->height.current = 400;
+ clickdot->height.previous = clickdot->height.current;
+ clickdot->height.target = clickdot->height.current;
+ height = clickdot->height.current + 0.5;
+
+ widget_set_button_handler(clickdot->widget, button_handler);
+
+ widget_schedule_resize(clickdot->widget, clickdot->width, height);
+
+ return clickdot;
+}
+
+static void
+clickdot_destroy(struct clickdot *clickdot)
+{
+ if (clickdot->frame_callback)
+ wl_callback_destroy(clickdot->frame_callback);
+
+ widget_destroy(clickdot->widget);
+ window_destroy(clickdot->window);
+ free(clickdot);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct display *display;
+ struct clickdot *clickdot;
+
+ display = display_create(&argc, &argv, NULL);
+ if (display == NULL) {
+ fprintf(stderr, "failed to create display: %m\n");
+ return -1;
+ }
+
+ clickdot = clickdot_create(display);
+
+ display_run(display);
+
+ clickdot_destroy(clickdot);
+ display_destroy(display);
+
+ return 0;
+}