[PATCH 05/17] clients: Add a new weston-stacking demo
Philip Withnall
philip at tecnocode.co.uk
Mon Nov 25 10:01:34 PST 2013
From: Philip Withnall <philip.withnall at collabora.co.uk>
This allows creation of a variety of window types, for the purposes of
testing window ordering and stacking in Weston.
---
clients/Makefile.am | 4 +
clients/stacking.c | 301 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 305 insertions(+)
create mode 100644 clients/stacking.c
diff --git a/clients/Makefile.am b/clients/Makefile.am
index 032d900..9132d35 100644
--- a/clients/Makefile.am
+++ b/clients/Makefile.am
@@ -77,6 +77,7 @@ clients_programs = \
weston-clickdot \
weston-transformed \
weston-fullscreen \
+ weston-stacking \
weston-calibrator \
$(subsurfaces) \
$(full_gl_client_programs) \
@@ -157,6 +158,9 @@ weston_transformed_LDADD = libtoytoolkit.la
weston_fullscreen_SOURCES = fullscreen.c
weston_fullscreen_LDADD = libtoytoolkit.la
+weston_stacking_SOURCES = stacking.c
+weston_stacking_LDADD = libtoytoolkit.la
+
weston_calibrator_SOURCES = calibrator.c \
../shared/matrix.c \
../shared/matrix.h
diff --git a/clients/stacking.c b/clients/stacking.c
new file mode 100644
index 0000000..45eb81e
--- /dev/null
+++ b/clients/stacking.c
@@ -0,0 +1,301 @@
+/*
+ * Copyright © 2013 Collabora Ltd.
+ *
+ * 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 "config.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#include <linux/input.h>
+#include <cairo.h>
+
+#include "window.h"
+
+struct stacking {
+ struct display *display;
+ struct window *root_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);
+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);
+static void
+fullscreen_handler(struct window *window, void *data);
+static void
+redraw_handler(struct widget *widget, void *data);
+
+/* Iff parent_window is set, the new window will be transient. */
+static struct window *
+new_window(struct stacking *stacking, struct window *parent_window)
+{
+ struct window *new_window;
+ struct widget *new_widget;
+
+ if (parent_window == NULL) {
+ new_window = window_create(stacking->display);
+ } else {
+ new_window = window_create_transient(stacking->display,
+ parent_window, 50, 50, 0);
+ }
+
+ new_widget = window_frame_create(new_window, new_window);
+
+ window_set_title(new_window, "Stacking Test");
+ window_set_key_handler(new_window, key_handler);
+ window_set_fullscreen_handler(new_window, fullscreen_handler);
+ widget_set_button_handler(new_widget, button_handler);
+ widget_set_redraw_handler(new_widget, redraw_handler);
+ window_set_user_data(new_window, stacking);
+
+ window_schedule_resize(new_window, 300, 300);
+
+ return new_window;
+}
+
+static void
+show_popup_cb(struct window *window, struct input *input, int index, void *data)
+{
+ /* Ignore the selected menu item. */
+}
+
+static void
+show_popup(struct stacking *stacking, struct input *input, uint32_t time,
+ struct window *window)
+{
+ int32_t x, y;
+ static const char *entries[] = {
+ "Test Entry",
+ "Another Test Entry",
+ };
+
+ input_get_position(input, &x, &y);
+ window_show_menu(stacking->display, input, time, window, x, y,
+ show_popup_cb, entries, ARRAY_LENGTH(entries));
+}
+
+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 stacking *stacking = data;
+
+ switch (button) {
+ case BTN_RIGHT:
+ if (state == WL_POINTER_BUTTON_STATE_PRESSED)
+ show_popup(stacking, input, time,
+ widget_get_user_data(widget));
+ break;
+
+ case BTN_LEFT:
+ default:
+ break;
+ }
+}
+
+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)
+{
+ struct stacking *stacking = data;
+
+ if (state != WL_KEYBOARD_KEY_STATE_PRESSED)
+ return;
+
+ switch (sym) {
+ case XKB_KEY_f:
+ fullscreen_handler(window, data);
+ break;
+
+ case XKB_KEY_m:
+ window_set_maximized(window, !window_is_maximized(window));
+ break;
+
+ case XKB_KEY_n:
+ /* New top-level window. */
+ new_window(stacking, NULL);
+ break;
+
+ case XKB_KEY_p:
+ show_popup(stacking, input, time, window);
+ break;
+
+ case XKB_KEY_q:
+ exit (0);
+ break;
+
+ case XKB_KEY_t:
+ /* New transient window. */
+ new_window(stacking, window);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void
+fullscreen_handler(struct window *window, void *data)
+{
+ window_set_fullscreen(window, !window_is_fullscreen(window));
+}
+
+static void
+draw_string(cairo_t *cr,
+ const char *fmt, ...) __attribute__((format (gnu_printf, 2, 3)));
+
+static void
+draw_string(cairo_t *cr,
+ const char *fmt, ...)
+{
+ char buffer[4096];
+ char *p, *end;
+ va_list argp;
+ cairo_text_extents_t text_extents;
+ cairo_font_extents_t font_extents;
+
+ cairo_save(cr);
+
+ cairo_select_font_face(cr, "sans",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_set_font_size(cr, 14);
+
+ cairo_font_extents(cr, &font_extents);
+
+ va_start(argp, fmt);
+
+ vsnprintf(buffer, sizeof(buffer), fmt, argp);
+
+ p = buffer;
+ while (*p) {
+ end = strchr(p, '\n');
+ if (end)
+ *end = 0;
+
+ cairo_show_text(cr, p);
+ cairo_text_extents(cr, p, &text_extents);
+ cairo_rel_move_to(cr, -text_extents.x_advance, font_extents.height);
+
+ if (end)
+ p = end + 1;
+ else
+ break;
+ }
+
+ va_end(argp);
+
+ cairo_restore(cr);
+}
+
+static void
+set_window_background_colour(cairo_t *cr, struct window *window)
+{
+ if (window_is_transient(window))
+ cairo_set_source_rgba(cr, 0.0, 1.0, 0.0, 0.4);
+ else if (window_is_maximized(window))
+ cairo_set_source_rgba(cr, 1.0, 1.0, 0.0, 0.6);
+ else if (window_is_fullscreen(window))
+ cairo_set_source_rgba(cr, 0.0, 1.0, 1.0, 0.6);
+ else
+ cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);
+}
+
+static void
+redraw_handler(struct widget *widget, void *data)
+{
+ struct window *window;
+ struct rectangle allocation;
+ cairo_t *cr;
+
+ widget_get_allocation(widget, &allocation);
+ window = widget_get_user_data(widget);
+
+ cr = widget_cairo_create(widget);
+ cairo_translate(cr, allocation.x, allocation.y);
+
+ /* Draw background. */
+ cairo_push_group(cr);
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ set_window_background_colour(cr, window);
+ cairo_rectangle(cr, 0, 0, allocation.width, allocation.height);
+ cairo_fill(cr);
+
+ cairo_pop_group_to_source(cr);
+ cairo_paint(cr);
+
+ /* Print the instructions. */
+ cairo_move_to(cr, 5, 15);
+ cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+
+ draw_string(cr,
+ "Window: %p\n"
+ "Fullscreen? %u\n"
+ "Maximized? %u\n"
+ "Transient? %u\n"
+ "Keys: (f)ullscreen, (m)aximize,\n"
+ " (n)ew window, (p)opup,\n"
+ " (q)uit, (t)ransient window\n",
+ window, window_is_fullscreen(window),
+ window_is_maximized(window), window_is_transient(window));
+
+ cairo_destroy(cr);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct stacking stacking;
+
+ memset(&stacking, 0, sizeof stacking);
+
+#ifdef HAVE_PANGO
+ g_type_init();
+#endif
+
+ stacking.display = display_create(&argc, argv);
+ if (stacking.display == NULL) {
+ fprintf(stderr, "Failed to create display: %m\n");
+ return -1;
+ }
+
+ display_set_user_data(stacking.display, &stacking);
+
+ stacking.root_window = new_window(&stacking, NULL);
+
+ display_run(stacking.display);
+
+ return 0;
+}
--
1.8.3.1
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