text: Add example clients for text protocol
authorJan Arne Petersen <jpetersen@openismus.com>
Thu, 21 Jun 2012 19:52:19 +0000 (21:52 +0200)
committerKristian Høgsberg <krh@bitplanet.net>
Thu, 21 Jun 2012 20:41:12 +0000 (16:41 -0400)
clients/.gitignore
clients/Makefile.am
clients/editor.c [new file with mode: 0644]
clients/keyboard.c [new file with mode: 0644]

index e47d674..fe50580 100644 (file)
@@ -24,3 +24,7 @@ weston-tablet-shell
 weston-screenshooter
 weston-terminal
 wscreensaver
+editor
+text-protocol.c
+text-client-protocol.h
+keyboard
index cf25a0b..5ed8839 100644 (file)
@@ -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          \
diff --git a/clients/editor.c b/clients/editor.c
new file mode 100644 (file)
index 0000000..145ba20
--- /dev/null
@@ -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;
+}
diff --git a/clients/keyboard.c b/clients/keyboard.c
new file mode 100644 (file)
index 0000000..f7bddeb
--- /dev/null
@@ -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;
+}