text: Add example clients for text protocol

13 years ago · cba9e470ba
parent 1f17be442e
commit cba9e470ba
4 changed files with 537 additions and 0 deletions
--- a/clients/.gitignore
+++ b/clients/.gitignore
@ -24,3 +24,7 @@ weston-tablet-shell
 weston-screenshooter
 weston-terminal
 wscreensaver
+editor
+text-protocol.c
+text-client-protocol.h
+keyboard
--- a/clients/Makefile.am
+++ b/clients/Makefile.am
@ -51,6 +51,8 @@ clients_programs =				\
 	resizor					\
 	eventdemo				\
 	clickdot				\
+	editor					\
+	keyboard				\
 	$(full_gl_client_programs)

 desktop_shell = weston-desktop-shell
@ -97,6 +99,20 @@ eventdemo_LDADD = $(toolkit_libs)
 clickdot_SOURCES = clickdot.c
 clickdot_LDADD = $(toolkit_libs)

+editor_SOURCES = 				\
+	editor.c				\
+	text-protocol.c				\
+	text-client-protocol.h
+editor_LDADD = $(toolkit_libs)
+
+keyboard_SOURCES = 				\
+	keyboard.c				\
+	desktop-shell-client-protocol.h		\
+	desktop-shell-protocol.c		\
+	text-client-protocol.h			\
+	text-protocol.c
+keyboard_LDADD = $(toolkit_libs)
+
 weston_desktop_shell_SOURCES =			\
 	desktop-shell.c				\
 	desktop-shell-client-protocol.h		\
@ -114,6 +130,8 @@ BUILT_SOURCES =					\
 	screenshooter-protocol.c		\
 	text-cursor-position-client-protocol.h	\
 	text-cursor-position-protocol.c		\
+	text-protocol.c				\
+	text-client-protocol.h			\
 	desktop-shell-client-protocol.h		\
 	desktop-shell-protocol.c		\
 	tablet-shell-client-protocol.h		\
--- a/clients/editor.c
+++ 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;
+}
--- a/clients/keyboard.c
+++ b/clients/keyboard.c
@ -0,0 +1,214 @@
+/*
+ * 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"
+#include "desktop-shell-client-protocol.h"
+
+struct virtual_keyboard {
+	struct input_panel *input_panel;
+	struct input_method *input_method;
+	struct display *display;
+};
+
+struct keyboard {
+	struct virtual_keyboard *keyboard;
+	struct window *window;
+	struct widget *widget;
+	int cx;
+	int cy;
+};
+
+static void
+redraw_handler(struct widget *widget, void *data)
+{
+	struct keyboard *keyboard = data;
+	cairo_surface_t *surface;
+	struct rectangle allocation;
+	cairo_t *cr;
+	int cx, cy;
+	int i;
+
+	surface = window_get_surface(keyboard->window);
+	widget_get_allocation(keyboard->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);
+
+	cx = keyboard->cx;
+	cy = keyboard->cy;
+
+	cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+	cairo_set_source_rgba(cr, 1, 1, 1, 0.5);
+	cairo_rectangle(cr, 0, 0, 10 * cx, 5 * cy);
+	cairo_paint(cr);
+
+	cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+
+	for (i = 0; i <= 'Z' - '0'; ++i) {
+		const int x = i % 10;
+		const int y = i / 10;
+		char text[] = { i + '0', '\0' };
+		cairo_text_extents_t extents;
+		int dx, dy;
+
+		cairo_text_extents(cr, text, &extents);
+		dx = extents.width;
+		dy = extents.height;
+
+		cairo_set_source_rgb(cr, 0, 0, 0);
+		cairo_rectangle(cr, x * cx, y * cy, cx, cy);
+		cairo_stroke(cr);
+
+		cairo_move_to(cr, x * cx + 0.5 * (cx - dx), y * cy + 0.5 * (cy - dy));
+
+		cairo_set_source_rgb(cr, 0, 0, 0);
+		cairo_show_text(cr, text);
+	}
+
+	cairo_destroy(cr);
+	cairo_surface_destroy(surface);
+}
+
+static void
+resize_handler(struct widget *widget,
+	       int32_t width, int32_t height, void *data)
+{
+	/* struct keyboard *keyboard = data; */
+}
+
+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 keyboard *keyboard = data;
+	struct rectangle allocation;
+	int32_t x, y;	
+	char text[] = { '0', '\0' };
+
+	if (state != WL_POINTER_BUTTON_STATE_PRESSED || button != BTN_LEFT) {
+		return;
+	}
+
+	input_get_position(input, &x, &y);
+
+	widget_get_allocation(keyboard->widget, &allocation);
+	x -= allocation.x;
+	y -= allocation.y;
+
+	text[0] = y / keyboard->cy * 10 + x / keyboard->cx + '0';
+
+	input_method_commit_string(keyboard->keyboard->input_method, text, -1);
+
+	widget_schedule_redraw(widget);
+}
+
+static void
+global_handler(struct wl_display *display, uint32_t id,
+	       const char *interface, uint32_t version, void *data)
+{
+	struct virtual_keyboard *keyboard = data;
+
+	if (!strcmp(interface, "input_panel")) {
+		keyboard->input_panel = wl_display_bind(display, id, &input_panel_interface);
+	} else if (!strcmp(interface, "input_method")) {
+		keyboard->input_method = wl_display_bind(display, id, &input_method_interface);
+	}
+}
+
+static void
+keyboard_create(struct output *output, struct virtual_keyboard *virtual_keyboard)
+{
+	struct keyboard *keyboard;
+
+	keyboard = malloc(sizeof *keyboard);
+	memset(keyboard, 0, sizeof *keyboard);
+
+	keyboard->keyboard = virtual_keyboard;
+	keyboard->window = window_create(virtual_keyboard->display);
+	keyboard->widget = window_add_widget(keyboard->window, keyboard);
+
+	window_set_title(keyboard->window, "Virtual keyboard");
+	window_set_custom(keyboard->window);
+	window_set_user_data(keyboard->window, keyboard);
+	
+	keyboard->cx = 40;
+	keyboard->cy = 40;
+
+	widget_set_redraw_handler(keyboard->widget, redraw_handler);
+	widget_set_resize_handler(keyboard->widget, resize_handler);
+	widget_set_button_handler(keyboard->widget, button_handler);
+
+	window_schedule_resize(keyboard->window, keyboard->cx * 10, keyboard->cy * 5);
+
+	input_panel_set_surface(virtual_keyboard->input_panel,
+				window_get_wl_shell_surface(keyboard->window),
+				output_get_wl_output(output));
+}
+
+static void
+handle_output_configure(struct output *output, void *data)
+{
+	struct virtual_keyboard *virtual_keyboard = data;
+
+	/* skip existing outputs */
+	if (output_get_user_data(output))
+		return;
+
+	output_set_user_data(output, virtual_keyboard);
+
+	keyboard_create(output, virtual_keyboard);
+}
+
+int
+main(int argc, char *argv[])
+{
+	struct virtual_keyboard virtual_keyboard;
+
+	virtual_keyboard.display = display_create(argc, argv);
+	if (virtual_keyboard.display == NULL) {
+		fprintf(stderr, "failed to create display: %m\n");
+		return -1;
+	}
+
+	wl_display_add_global_listener(display_get_display(virtual_keyboard.display),
+				       global_handler, &virtual_keyboard);
+
+	display_set_user_data(virtual_keyboard.display, &virtual_keyboard);
+	display_set_output_configure_handler(virtual_keyboard.display, handle_output_configure);
+
+	display_run(virtual_keyboard.display);
+
+	return 0;
+}