text: Add example clients for text protocol
diff --git a/clients/editor.c b/clients/editor.c
new file mode 100644
index 0000000..145ba20
--- /dev/null
+++ b/clients/editor.c
@@ -0,0 +1,301 @@
+/*
+ * Copyright © 2012 Openismus GmbH
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <linux/input.h>
+#include <cairo.h>
+
+#include "window.h"
+#include "text-client-protocol.h"
+
+struct text_entry {
+ struct widget *widget;
+ char *text;
+ int active;
+ struct rectangle allocation;
+ struct text_model *model;
+};
+
+struct editor {
+ struct input_method *input_method;
+ struct display *display;
+ struct window *window;
+ struct widget *widget;
+ struct text_entry *entry;
+ struct text_entry *editor;
+};
+
+static void
+text_entry_append(struct text_entry *entry, const char *text)
+{
+ entry->text = realloc(entry->text, strlen(entry->text) + strlen(text) + 1);
+ strcat(entry->text, text);
+}
+
+
+static void
+text_model_commit_string(void *data,
+ struct text_model *text_model,
+ const char *text,
+ uint32_t index)
+{
+ struct text_entry *entry = data;
+
+ text_entry_append(entry, text);
+
+ widget_schedule_redraw(entry->widget);
+}
+
+static const struct text_model_listener text_model_listener = {
+ text_model_commit_string
+};
+
+static struct text_entry*
+text_entry_create(struct editor *editor, const char *text)
+{
+ struct text_entry *entry;
+ struct wl_surface *surface;
+
+ entry = malloc(sizeof *entry);
+
+ surface = window_get_wl_surface(editor->window);
+
+ entry->widget = editor->widget;
+ entry->text = strdup(text);
+ entry->active = 0;
+ entry->model = input_method_create_text_model(editor->input_method, surface);
+ text_model_add_listener(entry->model, &text_model_listener, entry);
+
+ return entry;
+}
+
+static void
+text_entry_destroy(struct text_entry *entry)
+{
+ text_model_destroy(entry->model);
+ free(entry->text);
+ free(entry);
+}
+
+static void
+text_entry_draw(struct text_entry *entry, cairo_t *cr)
+{
+ cairo_save(cr);
+ cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+
+ cairo_rectangle(cr, entry->allocation.x, entry->allocation.y, entry->allocation.width, entry->allocation.height);
+ cairo_clip(cr);
+
+ cairo_translate(cr, entry->allocation.x, entry->allocation.y);
+ cairo_rectangle(cr, 0, 0, entry->allocation.width, entry->allocation.height);
+ cairo_set_source_rgba(cr, 1, 1, 1, 0.5);
+ cairo_fill(cr);
+ if (entry->active) {
+ cairo_rectangle(cr, 0, 0, entry->allocation.width, entry->allocation.height);
+ cairo_set_source_rgba(cr, 0, 0, 1, 0.5);
+ cairo_stroke(cr);
+ }
+
+ cairo_set_source_rgb(cr, 0, 0, 0);
+ cairo_select_font_face(cr, "sans",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_BOLD);
+ cairo_set_font_size(cr, 14);
+
+ cairo_translate(cr, 10, entry->allocation.height / 2);
+ cairo_show_text(cr, entry->text);
+
+ cairo_restore(cr);
+}
+
+static void
+redraw_handler(struct widget *widget, void *data)
+{
+ struct editor *editor = data;
+ cairo_surface_t *surface;
+ struct rectangle allocation;
+ cairo_t *cr;
+
+ surface = window_get_surface(editor->window);
+ widget_get_allocation(editor->widget, &allocation);
+
+ cr = cairo_create(surface);
+ cairo_rectangle(cr, allocation.x, allocation.y, allocation.width, allocation.height);
+ cairo_clip(cr);
+
+ cairo_translate(cr, allocation.x, allocation.y);
+
+ /* Draw background */
+ cairo_push_group(cr);
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_source_rgba(cr, 1, 1, 1, 1);
+ cairo_rectangle(cr, 0, 0, allocation.width, allocation.height);
+ cairo_fill(cr);
+
+ /* Entry */
+ text_entry_draw(editor->entry, cr);
+
+ /* Editor */
+ text_entry_draw(editor->editor, cr);
+
+ cairo_pop_group_to_source(cr);
+ cairo_paint(cr);
+
+ cairo_destroy(cr);
+ cairo_surface_destroy(surface);
+}
+
+static void
+text_entry_allocate(struct text_entry *entry, int32_t x, int32_t y,
+ int32_t width, int32_t height)
+{
+ entry->allocation.x = x;
+ entry->allocation.y = y;
+ entry->allocation.width = width;
+ entry->allocation.height = height;
+}
+
+static void
+resize_handler(struct widget *widget,
+ int32_t width, int32_t height, void *data)
+{
+ struct editor *editor = data;
+
+ text_entry_allocate(editor->entry, 20, 20, width - 40, height / 2 - 40);
+ text_entry_allocate(editor->editor, 20, height / 2 + 20, width - 40, height / 2 - 40);
+}
+
+static int32_t
+rectangle_contains(struct rectangle *rectangle, int32_t x, int32_t y)
+{
+ if (x < rectangle->x || x > rectangle->x + rectangle->width) {
+ return 0;
+ }
+
+ if (y < rectangle->y || y > rectangle->y + rectangle->height) {
+ return 0;
+ }
+
+ return 1;
+}
+
+static void
+text_entry_activate(struct text_entry *entry)
+{
+ text_model_activate(entry->model);
+}
+
+static void
+text_entry_deactivate(struct text_entry *entry)
+{
+ text_model_deactivate(entry->model);
+}
+
+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 editor *editor = data;
+ struct rectangle allocation;
+ int32_t x, y;
+
+ if (state != WL_POINTER_BUTTON_STATE_PRESSED || button != BTN_LEFT) {
+ return;
+ }
+
+ input_get_position(input, &x, &y);
+
+ widget_get_allocation(editor->widget, &allocation);
+ x -= allocation.x;
+ y -= allocation.y;
+
+ editor->entry->active = 0;
+ editor->editor->active = 0;
+
+ editor->entry->active = rectangle_contains(&editor->entry->allocation, x, y);
+ editor->editor->active = rectangle_contains(&editor->editor->allocation, x, y);
+
+ if (editor->entry->active) {
+ text_entry_activate(editor->entry);
+ } else {
+ text_entry_deactivate(editor->entry);
+ }
+ if (editor->editor->active) {
+ text_entry_activate(editor->editor);
+ } else {
+ text_entry_deactivate(editor->editor);
+ }
+
+ widget_schedule_redraw(widget);
+}
+
+static void
+global_handler(struct wl_display *display, uint32_t id,
+ const char *interface, uint32_t version, void *data)
+{
+ struct editor *editor = data;
+
+ if (!strcmp(interface, "input_method")) {
+ editor->input_method = wl_display_bind(display, id, &input_method_interface);
+ }
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct editor editor;
+
+ editor.display = display_create(argc, argv);
+ if (editor.display == NULL) {
+ fprintf(stderr, "failed to create display: %m\n");
+ return -1;
+ }
+ wl_display_add_global_listener(display_get_display(editor.display),
+ global_handler, &editor);
+
+
+ editor.window = window_create(editor.display);
+ editor.widget = frame_create(editor.window, &editor);
+
+ editor.entry = text_entry_create(&editor, "Entry");
+ editor.editor = text_entry_create(&editor, "Editor");
+
+ window_set_title(editor.window, "Text Editor");
+
+ widget_set_redraw_handler(editor.widget, redraw_handler);
+ widget_set_resize_handler(editor.widget, resize_handler);
+ widget_set_button_handler(editor.widget, button_handler);
+
+ window_schedule_resize(editor.window, 500, 400);
+
+ display_run(editor.display);
+
+ text_entry_destroy(editor.entry);
+ text_entry_destroy(editor.editor);
+
+ return 0;
+}