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shortcuts: Extend the accelerator syntax more

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Cover cases like left+right control, and render them nicely.
The gtk3-demo builder shortcuts example shows the new
possibilities.
This commit is contained in:
Matthias Clasen 2015-12-04 10:55:20 -05:00
parent 7fc493a8a8
commit 8768c0b8ac
3 changed files with 148 additions and 7 deletions
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38
demos/gtk-demo/shortcuts-builder.ui
View File

@ -502,6 +502,44 @@
</object>
</child>
<child>
<object class="GtkShortcutsGroup">
<property name="visible">1</property>
<property name="title" translatable="yes">'Special' combinations</property>
<child>
<object class="GtkShortcutsShortcut">
<property name="visible">1</property>
<property name="accelerator">t+t</property>
<property name="title" translatable="yes">You want tea ?</property>
</object>
</child>
<child>
<object class="GtkShortcutsShortcut">
<property name="visible">1</property>
<property name="accelerator">&lt;shift&gt;&lt;ctrl&gt;</property>
<property name="title" translatable="yes">Shift Control</property>
</object>
</child>
<child>
<object class="GtkShortcutsShortcut">
<property name="visible">1</property>
<property name="accelerator">&lt;ctrl&gt;&amp;&lt;ctrl&gt;</property>
<property name="title" translatable="yes">Control Control</property>
</object>
</child>
<child>
<object class="GtkShortcutsShortcut">
<property name="visible">1</property>
<property name="accelerator">Control_L&amp;Control_R</property>
<property name="title" translatable="yes">Left and right control</property>
</object>
</child>
</object>
</child>
</object>
</child>
</object>

105
gtk/gtkshortcutlabel.c
View File

@ -46,14 +46,71 @@ enum {
static GParamSpec *properties[LAST_PROP];
static gchar *
get_modifier_label (guint key)
{
const gchar *subscript;
const gchar *label;
switch (key)
{
case GDK_KEY_Shift_L:
case GDK_KEY_Control_L:
case GDK_KEY_Alt_L:
case GDK_KEY_Meta_L:
case GDK_KEY_Super_L:
case GDK_KEY_Hyper_L:
subscript = "L";
break;
case GDK_KEY_Shift_R:
case GDK_KEY_Control_R:
case GDK_KEY_Alt_R:
case GDK_KEY_Meta_R:
case GDK_KEY_Super_R:
case GDK_KEY_Hyper_R:
subscript = "R";
break;
default:
g_assert_not_reached ();
}
switch (key)
{
case GDK_KEY_Shift_L: case GDK_KEY_Shift_R:
label = C_("keyboard label", "Shift");
break;
case GDK_KEY_Control_L: case GDK_KEY_Control_R:
label = C_("keyboard label", "Ctrl");
break;
case GDK_KEY_Alt_L: case GDK_KEY_Alt_R:
label = C_("keyboard label", "Alt");
break;
case GDK_KEY_Meta_L: case GDK_KEY_Meta_R:
label = C_("keyboard label", "Meta");
break;
case GDK_KEY_Super_L: case GDK_KEY_Super_R:
label = C_("keyboard label", "Super");
break;
case GDK_KEY_Hyper_L: case GDK_KEY_Hyper_R:
label = C_("keyboard label", "Hyper");
break;
default:
g_assert_not_reached ();
}
return g_strdup_printf ("%s<sub>%s</sub>", label, subscript);
}
static gchar **
get_labels (guint key, GdkModifierType modifier, guint *n_mods)
{
const gchar *labels[16];
GList *freeme = NULL;
gchar key_label[6];
gchar *tmp;
gunichar ch;
gint i = 0;
gchar **retval;
if (modifier & GDK_SHIFT_MASK)
labels[i++] = C_("keyboard label", "Shift");
@ -97,6 +154,15 @@ get_labels (guint key, GdkModifierType modifier, guint *n_mods)
{
switch (key)
{
case GDK_KEY_Shift_L: case GDK_KEY_Shift_R:
case GDK_KEY_Control_L: case GDK_KEY_Control_R:
case GDK_KEY_Alt_L: case GDK_KEY_Alt_R:
case GDK_KEY_Meta_L: case GDK_KEY_Meta_R:
case GDK_KEY_Super_L: case GDK_KEY_Super_R:
case GDK_KEY_Hyper_L: case GDK_KEY_Hyper_R:
freeme = g_list_prepend (freeme, get_modifier_label (key));
labels[i++] = (const gchar*)freeme->data;
break;
case GDK_KEY_Left:
labels[i++] = "\xe2\x86\x90";
break;
@ -141,7 +207,11 @@ get_labels (guint key, GdkModifierType modifier, guint *n_mods)
labels[i] = NULL;
return g_strdupv ((gchar **)labels);
retval = g_strdupv ((gchar **)labels);
g_list_free_full (freeme, g_free);
return retval;
}
static GtkWidget *
@ -184,6 +254,8 @@ display_shortcut (GtkContainer *self,
gtk_widget_set_size_request (frame, 50, -1);
disp = gtk_label_new (keys[i]);
gtk_label_set_use_markup (GTK_LABEL (disp), TRUE);
gtk_widget_show (disp);
gtk_container_add (GTK_CONTAINER (frame), disp);
}
@ -191,7 +263,7 @@ display_shortcut (GtkContainer *self,
}
static gboolean
parse_sequence (GtkShortcutLabel *self,
parse_combination (GtkShortcutLabel *self,
const gchar *str)
{
gchar **accels;
@ -200,7 +272,7 @@ parse_sequence (GtkShortcutLabel *self,
guint key = 0;
gboolean retval = TRUE;
accels = g_strsplit (str, "+", 0);
accels = g_strsplit (str, "&", 0);
for (k = 0; accels[k]; k++)
{
gtk_accelerator_parse (accels[k], &key, &modifier);
@ -209,6 +281,9 @@ parse_sequence (GtkShortcutLabel *self,
retval = FALSE;
break;
}
if (k > 0)
gtk_container_add (GTK_CONTAINER (self), dim_label ("+"));
display_shortcut (GTK_CONTAINER (self), key, modifier);
}
g_strfreev (accels);
@ -216,6 +291,29 @@ parse_sequence (GtkShortcutLabel *self,
return retval;
}
static gboolean
parse_sequence (GtkShortcutLabel *self,
const gchar *str)
{
gchar **accels;
gint k;
gboolean retval = TRUE;
accels = g_strsplit (str, "+", 0);
for (k = 0; accels[k]; k++)
{
if (!parse_combination (self, accels[k]))
{
retval = FALSE;
break;
}
}
g_strfreev (accels);
return retval;
}
static gboolean
parse_range (GtkShortcutLabel *self,
const gchar *str)
@ -231,6 +329,7 @@ parse_range (GtkShortcutLabel *self,
return FALSE;
gtk_container_add (GTK_CONTAINER (self), dim_label ("⋯"));
if (!parse_sequence (self, dots + 3))
return FALSE;

10
gtk/gtkshortcutsshortcut.c
View File

@ -464,15 +464,19 @@ gtk_shortcuts_shortcut_class_init (GtkShortcutsShortcutClass *klass)
* gtk_accelerator_parse(). Multiple accelerators can be specified by separating
* them with a space, but keep in mind that the available width is limited.
* It is also possible to specify ranges of shortcuts, using ... between the keys.
* Sequences of keys can be specified using a + between the keys.
* Sequences of keys can be specified using a + or & between the keys.
*
* Examples:
* - A single shortcut: <ctl><alt>delete
* - Two alternative shortcuts: <shift>a Home
* - A range of shortcuts: <alt>1...<alt>9
* - A sequence of key combinations: <ctl>c+<ctl>x
* - Several keys pressed together: Control_L&Control_R
* - A sequence of shortcuts or keys: <ctl>c+<ctl>x
*
* Note that < and > need to be escaped as &lt; and &gt; when used
* Use + instead of & when the keys may (or have to be) pressed sequentially (e.g
* use t+t for 'press the t key twice').
*
* Note that <, > and & need to be escaped as &lt;, &gt; and &amp; when used
* in .ui files.
*/
properties[PROP_ACCELERATOR] =