679 lines
22 KiB
C
679 lines
22 KiB
C
/*
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* Copyright (C) 2010-2011 Daiki Ueno <ueno@unixuser.org>
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* Copyright (C) 2010-2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/**
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* SECTION:eek-gtk-keyboard
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* @short_description: a #GtkWidget displaying #EekKeyboard
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif /* HAVE_CONFIG_H */
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#ifdef HAVE_LIBCANBERRA
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#include <canberra-gtk.h>
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#endif
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#include <string.h>
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#include "eek-gtk-keyboard.h"
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#include "eek-gtk-renderer.h"
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#include "eek-keyboard.h"
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#include "eek-section.h"
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#include "eek-key.h"
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#include "eek-symbol.h"
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enum {
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PROP_0,
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PROP_KEYBOARD,
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PROP_LAST
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};
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G_DEFINE_TYPE (EekGtkKeyboard, eek_gtk_keyboard, GTK_TYPE_DRAWING_AREA);
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#define EEK_GTK_KEYBOARD_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), EEK_TYPE_GTK_KEYBOARD, EekGtkKeyboardPrivate))
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/* since 2.91.5 GDK_DRAWABLE was removed and gdk_cairo_create takes
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GdkWindow as the argument */
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#ifndef GDK_DRAWABLE
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#define GDK_DRAWABLE(x) (x)
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#endif
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struct _EekGtkKeyboardPrivate
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{
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EekRenderer *renderer;
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EekKeyboard *keyboard;
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gulong key_pressed_handler;
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gulong key_released_handler;
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gulong key_locked_handler;
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gulong key_unlocked_handler;
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gulong key_cancelled_handler;
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gulong symbol_index_changed_handler;
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EekTheme *theme;
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};
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static EekColor * color_from_gdk_color (GdkColor *gdk_color);
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static void on_key_pressed (EekKeyboard *keyboard,
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EekKey *key,
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gpointer user_data);
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static void on_key_released (EekKeyboard *keyboard,
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EekKey *key,
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gpointer user_data);
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static void on_key_locked (EekKeyboard *keyboard,
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EekKey *key,
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gpointer user_data);
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static void on_key_unlocked (EekKeyboard *keyboard,
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EekKey *key,
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gpointer user_data);
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static void on_key_cancelled (EekKeyboard *keyboard,
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EekKey *key,
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gpointer user_data);
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static void on_symbol_index_changed (EekKeyboard *keyboard,
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gint group,
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gint level,
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gpointer user_data);
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static void render_pressed_key (GtkWidget *widget,
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EekKey *key);
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static void render_locked_key (GtkWidget *widget,
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EekKey *key);
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static void render_released_key (GtkWidget *widget,
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EekKey *key);
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static void
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eek_gtk_keyboard_real_realize (GtkWidget *self)
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{
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gtk_widget_set_double_buffered (self, FALSE);
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gtk_widget_set_events (self,
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GDK_EXPOSURE_MASK |
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GDK_KEY_PRESS_MASK |
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GDK_KEY_RELEASE_MASK |
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GDK_BUTTON_PRESS_MASK |
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GDK_BUTTON_RELEASE_MASK |
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GDK_BUTTON_MOTION_MASK);
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GTK_WIDGET_CLASS (eek_gtk_keyboard_parent_class)->realize (self);
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}
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static gboolean
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eek_gtk_keyboard_real_draw (GtkWidget *self,
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cairo_t *cr)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(self);
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GtkAllocation allocation;
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EekColor background;
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GList *list, *head;
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gtk_widget_get_allocation (self, &allocation);
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if (!priv->renderer) {
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GtkStyle *style;
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GtkStateType state;
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PangoContext *pcontext;
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EekColor *color;
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pcontext = gtk_widget_get_pango_context (self);
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priv->renderer = eek_gtk_renderer_new (priv->keyboard, pcontext, self);
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if (priv->theme)
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eek_renderer_set_theme (priv->renderer, priv->theme);
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eek_renderer_set_allocation_size (priv->renderer,
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allocation.width,
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allocation.height);
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style = gtk_widget_get_style (self);
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state = gtk_widget_get_state (self);
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color = color_from_gdk_color (&style->text[state]);
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eek_renderer_set_default_foreground_color (priv->renderer, color);
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eek_color_free (color);
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color = color_from_gdk_color (&style->base[state]);
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eek_renderer_set_default_background_color (priv->renderer, color);
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eek_color_free (color);
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}
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/* blank background */
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eek_renderer_get_background_color (priv->renderer,
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EEK_ELEMENT(priv->keyboard),
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&background);
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cairo_set_source_rgba (cr,
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background.red,
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background.green,
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background.blue,
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background.alpha);
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cairo_paint (cr);
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eek_renderer_render_keyboard (priv->renderer, cr);
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/* redraw pressed key */
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list = eek_keyboard_get_pressed_keys (priv->keyboard);
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for (head = list; head; head = g_list_next (head)) {
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render_pressed_key (self, head->data);
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}
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g_list_free (list);
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/* redraw locked key */
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list = eek_keyboard_get_locked_keys (priv->keyboard);
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for (head = list; head; head = g_list_next (head)) {
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render_locked_key (self, ((EekModifierKey *)head->data)->key);
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}
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g_list_free (list);
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return FALSE;
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}
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static void
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eek_gtk_keyboard_real_size_allocate (GtkWidget *self,
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GtkAllocation *allocation)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(self);
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if (priv->renderer)
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eek_renderer_set_allocation_size (priv->renderer,
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allocation->width,
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allocation->height);
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GTK_WIDGET_CLASS (eek_gtk_keyboard_parent_class)->
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size_allocate (self, allocation);
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}
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static gboolean
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eek_gtk_keyboard_real_button_press_event (GtkWidget *self,
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GdkEventButton *event)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(self);
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EekKey *key;
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key = eek_renderer_find_key_by_position (priv->renderer,
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(gdouble)event->x,
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(gdouble)event->y);
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if (key)
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g_signal_emit_by_name (key, "pressed", priv->keyboard);
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return TRUE;
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}
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static gboolean
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eek_gtk_keyboard_real_button_release_event (GtkWidget *self,
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GdkEventButton *event)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(self);
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GList *list, *head;
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list = eek_keyboard_get_pressed_keys (priv->keyboard);
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for (head = list; head; head = g_list_next (head))
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g_signal_emit_by_name (head->data, "released", priv->keyboard);
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g_list_free (list);
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return TRUE;
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}
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static gboolean
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eek_gtk_keyboard_real_motion_notify_event (GtkWidget *self,
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GdkEventMotion *event)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(self);
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EekKey *key;
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if (event->state == 0)
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return FALSE;
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key = eek_renderer_find_key_by_position (priv->renderer,
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(gdouble)event->x,
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(gdouble)event->y);
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if (key) {
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GList *list, *head;
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gboolean found = FALSE;
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list = eek_keyboard_get_pressed_keys (priv->keyboard);
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for (head = list; head; head = g_list_next (head)) {
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if (head->data == key)
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found = TRUE;
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else
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g_signal_emit_by_name (head->data, "cancelled", priv->keyboard);
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}
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g_list_free (list);
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if (!found)
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g_signal_emit_by_name (key, "pressed", priv->keyboard);
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}
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return TRUE;
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}
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static void
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eek_gtk_keyboard_real_unmap (GtkWidget *self)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(self);
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if (priv->keyboard) {
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GList *list, *head;
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/* Make a copy of HEAD before sending "released" signal on
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elements, so that the default handler of
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EekKeyboard::key-released signal can remove elements from its
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internal copy */
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list = eek_keyboard_get_pressed_keys (priv->keyboard);
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for (head = list; head; head = g_list_next (head))
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g_signal_emit_by_name (head->data, "released", priv->keyboard);
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g_list_free (list);
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}
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GTK_WIDGET_CLASS (eek_gtk_keyboard_parent_class)->unmap (self);
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}
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static gboolean
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eek_gtk_keyboard_real_query_tooltip (GtkWidget *widget,
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gint x,
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gint y,
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gboolean keyboard_tooltip,
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GtkTooltip *tooltip)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
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EekKey *key;
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key = eek_renderer_find_key_by_position (priv->renderer,
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(gdouble)x,
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(gdouble)y);
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if (key) {
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EekSymbol *symbol = eek_key_get_symbol (key);
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const gchar *text = eek_symbol_get_tooltip (symbol);
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if (text) {
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gtk_tooltip_set_text (tooltip, text);
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return TRUE;
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}
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}
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return FALSE;
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}
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static void
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eek_gtk_keyboard_set_keyboard (EekGtkKeyboard *self,
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EekKeyboard *keyboard)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(self);
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priv->keyboard = g_object_ref (keyboard);
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priv->key_pressed_handler =
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g_signal_connect (priv->keyboard, "key-pressed",
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G_CALLBACK(on_key_pressed), self);
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priv->key_released_handler =
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g_signal_connect (priv->keyboard, "key-released",
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G_CALLBACK(on_key_released), self);
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priv->key_locked_handler =
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g_signal_connect (priv->keyboard, "key-locked",
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G_CALLBACK(on_key_locked), self);
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priv->key_unlocked_handler =
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g_signal_connect (priv->keyboard, "key-unlocked",
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G_CALLBACK(on_key_unlocked), self);
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priv->key_cancelled_handler =
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g_signal_connect (priv->keyboard, "key-cancelled",
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G_CALLBACK(on_key_cancelled), self);
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priv->symbol_index_changed_handler =
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g_signal_connect (priv->keyboard, "symbol-index-changed",
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G_CALLBACK(on_symbol_index_changed), self);
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}
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static void
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eek_gtk_keyboard_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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EekKeyboard *keyboard;
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switch (prop_id) {
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case PROP_KEYBOARD:
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keyboard = g_value_get_object (value);
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eek_gtk_keyboard_set_keyboard (EEK_GTK_KEYBOARD(object), keyboard);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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eek_gtk_keyboard_dispose (GObject *object)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(object);
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if (priv->renderer) {
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g_object_unref (priv->renderer);
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priv->renderer = NULL;
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}
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if (priv->keyboard) {
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if (g_signal_handler_is_connected (priv->keyboard,
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priv->key_pressed_handler))
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g_signal_handler_disconnect (priv->keyboard,
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priv->key_pressed_handler);
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if (g_signal_handler_is_connected (priv->keyboard,
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priv->key_released_handler))
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g_signal_handler_disconnect (priv->keyboard,
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priv->key_released_handler);
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if (g_signal_handler_is_connected (priv->keyboard,
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priv->key_locked_handler))
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g_signal_handler_disconnect (priv->keyboard,
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priv->key_locked_handler);
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if (g_signal_handler_is_connected (priv->keyboard,
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priv->key_unlocked_handler))
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g_signal_handler_disconnect (priv->keyboard,
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priv->key_unlocked_handler);
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if (g_signal_handler_is_connected (priv->keyboard,
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priv->key_cancelled_handler))
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g_signal_handler_disconnect (priv->keyboard,
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priv->key_cancelled_handler);
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if (g_signal_handler_is_connected (priv->keyboard,
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priv->symbol_index_changed_handler))
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g_signal_handler_disconnect (priv->keyboard,
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priv->symbol_index_changed_handler);
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GList *list, *head;
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list = eek_keyboard_get_pressed_keys (priv->keyboard);
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for (head = list; head; head = g_list_next (head)) {
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g_signal_emit_by_name (head->data, "released", priv->keyboard);
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}
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g_list_free (list);
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g_object_unref (priv->keyboard);
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priv->keyboard = NULL;
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}
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if (priv->theme) {
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g_object_unref (priv->theme);
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priv->theme = NULL;
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}
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G_OBJECT_CLASS (eek_gtk_keyboard_parent_class)->dispose (object);
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}
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static void
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eek_gtk_keyboard_class_init (EekGtkKeyboardClass *klass)
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{
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GParamSpec *pspec;
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g_type_class_add_private (gobject_class,
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sizeof (EekGtkKeyboardPrivate));
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widget_class->realize = eek_gtk_keyboard_real_realize;
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widget_class->unmap = eek_gtk_keyboard_real_unmap;
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widget_class->draw = eek_gtk_keyboard_real_draw;
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widget_class->size_allocate = eek_gtk_keyboard_real_size_allocate;
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widget_class->button_press_event =
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eek_gtk_keyboard_real_button_press_event;
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widget_class->button_release_event =
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eek_gtk_keyboard_real_button_release_event;
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widget_class->motion_notify_event =
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eek_gtk_keyboard_real_motion_notify_event;
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widget_class->query_tooltip =
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eek_gtk_keyboard_real_query_tooltip;
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gobject_class->set_property = eek_gtk_keyboard_set_property;
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gobject_class->dispose = eek_gtk_keyboard_dispose;
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pspec = g_param_spec_object ("keyboard",
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"Keyboard",
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"Keyboard",
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EEK_TYPE_KEYBOARD,
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G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE);
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g_object_class_install_property (gobject_class,
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PROP_KEYBOARD,
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pspec);
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}
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static void
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eek_gtk_keyboard_init (EekGtkKeyboard *self)
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{
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self->priv = EEK_GTK_KEYBOARD_GET_PRIVATE(self);
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}
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/**
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* eek_gtk_keyboard_new:
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* @keyboard: an #EekKeyboard
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*
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* Create a new #GtkWidget displaying @keyboard.
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* Returns: a #GtkWidget
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*/
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GtkWidget *
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eek_gtk_keyboard_new (EekKeyboard *keyboard)
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{
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return g_object_new (EEK_TYPE_GTK_KEYBOARD, "keyboard", keyboard, NULL);
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}
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static EekColor *
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color_from_gdk_color (GdkColor *gdk_color)
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{
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return eek_color_new (gdk_color->red / (gdouble)0xFFFF,
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gdk_color->green / (gdouble)0xFFFF,
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gdk_color->blue / (gdouble)0xFFFF,
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1.0);
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}
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static void
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magnify_bounds (GtkWidget *self,
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EekBounds *bounds,
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EekBounds *large_bounds,
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gdouble scale)
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{
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GtkAllocation allocation;
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gdouble x, y;
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g_assert (scale >= 1.0);
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gtk_widget_get_allocation (self, &allocation);
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large_bounds->width = bounds->width * scale;
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large_bounds->height = bounds->height * scale;
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x = bounds->x - (large_bounds->width - bounds->width) / 2;
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y = bounds->y - large_bounds->height;
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large_bounds->x = CLAMP(x, 0, allocation.width - large_bounds->width);
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large_bounds->y = CLAMP(y, 0, allocation.height - large_bounds->height);
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}
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static void
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render_pressed_key (GtkWidget *widget,
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EekKey *key)
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{
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EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
|
|
EekBounds bounds, large_bounds;
|
|
cairo_t *cr;
|
|
|
|
cr = gdk_cairo_create (GDK_DRAWABLE (gtk_widget_get_window (widget)));
|
|
|
|
eek_renderer_get_key_bounds (priv->renderer, key, &bounds, TRUE);
|
|
magnify_bounds (widget, &bounds, &large_bounds, 1.5);
|
|
|
|
cairo_save (cr);
|
|
cairo_translate (cr, bounds.x, bounds.y);
|
|
eek_renderer_render_key (priv->renderer, cr, key, 1.0, TRUE);
|
|
cairo_restore (cr);
|
|
|
|
cairo_save (cr);
|
|
cairo_translate (cr, large_bounds.x, large_bounds.y);
|
|
eek_renderer_render_key (priv->renderer, cr, key, 1.5, TRUE);
|
|
cairo_restore (cr);
|
|
|
|
cairo_destroy (cr);
|
|
}
|
|
|
|
static void
|
|
render_locked_key (GtkWidget *widget,
|
|
EekKey *key)
|
|
{
|
|
EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
|
|
EekBounds bounds;
|
|
cairo_t *cr;
|
|
|
|
cr = gdk_cairo_create (GDK_DRAWABLE (gtk_widget_get_window (widget)));
|
|
|
|
eek_renderer_get_key_bounds (priv->renderer, key, &bounds, TRUE);
|
|
cairo_translate (cr, bounds.x, bounds.y);
|
|
eek_renderer_render_key (priv->renderer, cr, key, 1.0, TRUE);
|
|
|
|
cairo_destroy (cr);
|
|
}
|
|
|
|
static void
|
|
render_released_key (GtkWidget *widget,
|
|
EekKey *key)
|
|
{
|
|
EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
|
|
EekBounds bounds, large_bounds;
|
|
cairo_t *cr;
|
|
|
|
cr = gdk_cairo_create (GDK_DRAWABLE (gtk_widget_get_window (widget)));
|
|
|
|
eek_renderer_get_key_bounds (priv->renderer, key, &bounds, TRUE);
|
|
magnify_bounds (widget, &bounds, &large_bounds, 2.0);
|
|
cairo_rectangle (cr,
|
|
large_bounds.x,
|
|
large_bounds.y,
|
|
large_bounds.width,
|
|
large_bounds.height);
|
|
cairo_rectangle (cr,
|
|
bounds.x,
|
|
bounds.y,
|
|
bounds.width,
|
|
bounds.height);
|
|
cairo_clip (cr);
|
|
|
|
eek_renderer_render_keyboard (priv->renderer, cr);
|
|
cairo_destroy (cr);
|
|
}
|
|
|
|
static void
|
|
on_key_pressed (EekKeyboard *keyboard,
|
|
EekKey *key,
|
|
gpointer user_data)
|
|
{
|
|
GtkWidget *widget = user_data;
|
|
EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
|
|
|
|
/* renderer may have not been set yet if the widget is a popup */
|
|
if (!priv->renderer)
|
|
return;
|
|
|
|
render_pressed_key (widget, key);
|
|
|
|
#if HAVE_LIBCANBERRA
|
|
ca_gtk_play_for_widget (widget, 0,
|
|
CA_PROP_EVENT_ID, "button-pressed",
|
|
CA_PROP_EVENT_DESCRIPTION, "virtual key pressed",
|
|
CA_PROP_APPLICATION_ID, "org.fedorahosted.Eekboard",
|
|
NULL);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
on_key_released (EekKeyboard *keyboard,
|
|
EekKey *key,
|
|
gpointer user_data)
|
|
{
|
|
GtkWidget *widget = user_data;
|
|
EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
|
|
|
|
/* renderer may have not been set yet if the widget is a popup */
|
|
if (!priv->renderer)
|
|
return;
|
|
|
|
render_released_key (widget, key);
|
|
|
|
#if HAVE_LIBCANBERRA
|
|
ca_gtk_play_for_widget (widget, 0,
|
|
CA_PROP_EVENT_ID, "button-released",
|
|
CA_PROP_EVENT_DESCRIPTION, "virtual key pressed",
|
|
CA_PROP_APPLICATION_ID, "org.fedorahosted.Eekboard",
|
|
NULL);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
on_key_cancelled (EekKeyboard *keyboard,
|
|
EekKey *key,
|
|
gpointer user_data)
|
|
{
|
|
GtkWidget *widget = user_data;
|
|
EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
|
|
|
|
/* renderer may have not been set yet if the widget is a popup */
|
|
if (!priv->renderer)
|
|
return;
|
|
|
|
render_released_key (widget, key);
|
|
}
|
|
|
|
static void
|
|
on_key_locked (EekKeyboard *keyboard,
|
|
EekKey *key,
|
|
gpointer user_data)
|
|
{
|
|
GtkWidget *widget = user_data;
|
|
EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
|
|
|
|
/* renderer may have not been set yet if the widget is a popup */
|
|
if (!priv->renderer)
|
|
return;
|
|
|
|
render_locked_key (widget, key);
|
|
}
|
|
|
|
static void
|
|
on_key_unlocked (EekKeyboard *keyboard,
|
|
EekKey *key,
|
|
gpointer user_data)
|
|
{
|
|
GtkWidget *widget = user_data;
|
|
EekGtkKeyboardPrivate *priv = EEK_GTK_KEYBOARD_GET_PRIVATE(widget);
|
|
|
|
/* renderer may have not been set yet if the widget is a popup */
|
|
if (!priv->renderer)
|
|
return;
|
|
|
|
render_released_key (widget, key);
|
|
}
|
|
|
|
static void
|
|
on_symbol_index_changed (EekKeyboard *keyboard,
|
|
gint group,
|
|
gint level,
|
|
gpointer user_data)
|
|
{
|
|
GtkWidget *widget = user_data;
|
|
|
|
gtk_widget_queue_draw (widget);
|
|
}
|
|
|
|
void
|
|
eek_gtk_keyboard_set_theme (EekGtkKeyboard *keyboard,
|
|
EekTheme *theme)
|
|
{
|
|
EekGtkKeyboardPrivate *priv;
|
|
|
|
g_return_if_fail (EEK_IS_GTK_KEYBOARD(keyboard));
|
|
g_return_if_fail (EEK_IS_THEME(theme));
|
|
|
|
priv = EEK_GTK_KEYBOARD_GET_PRIVATE(keyboard);
|
|
priv->theme = g_object_ref (theme);
|
|
}
|