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fontchooser: Fix smooth scrolling in the scale and the preview entry

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This commit is contained in:
Alberto Ruiz
2013-07-21 20:46:30 +02:00
parent 33f9a1263c
commit 1859fe8dcf
2 changed files with 16 additions and 6 deletions
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18
gtk/gtkfontchooserwidget.c
View File

@ -412,9 +412,9 @@ cursor_changed_cb (GtkTreeView *treeview,
}
static gboolean
zoom_preview_cb (GtkWidget *scrolled_window,
GdkEventScroll *event,
gpointer user_data)
resize_by_scroll_cb (GtkWidget *scrolled_window,
GdkEventScroll *event,
gpointer user_data)
{
GtkFontChooserWidget *fc = user_data;
GtkFontChooserWidgetPrivate *priv = fc->priv;
@ -428,6 +428,15 @@ zoom_preview_cb (GtkWidget *scrolled_window,
gtk_adjustment_set_value (adj,
gtk_adjustment_get_value (adj) -
gtk_adjustment_get_step_increment (adj));
else if (event->direction == GDK_SCROLL_SMOOTH && event->delta_x != 0.0)
gtk_adjustment_set_value (adj,
gtk_adjustment_get_value (adj) +
gtk_adjustment_get_step_increment (adj) * event->delta_x);
else if (event->direction == GDK_SCROLL_SMOOTH && event->delta_y != 0.0)
gtk_adjustment_set_value (adj,
gtk_adjustment_get_value (adj) -
gtk_adjustment_get_step_increment (adj) * event->delta_y);
return TRUE;
}
@ -490,7 +499,7 @@ gtk_font_chooser_widget_class_init (GtkFontChooserWidgetClass *klass)
gtk_widget_class_bind_callback (widget_class, cursor_changed_cb);
gtk_widget_class_bind_callback (widget_class, row_activated_cb);
gtk_widget_class_bind_callback (widget_class, gtk_font_chooser_widget_set_cell_size);
gtk_widget_class_bind_callback (widget_class, zoom_preview_cb);
gtk_widget_class_bind_callback (widget_class, resize_by_scroll_cb);
gtk_widget_class_bind_callback (widget_class, row_deleted_cb);
gtk_widget_class_bind_callback (widget_class, row_inserted_cb);
gtk_widget_class_bind_callback (widget_class, row_deleted_cb);
@ -515,6 +524,7 @@ gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
/* Set default preview text */
gtk_entry_set_text (GTK_ENTRY (priv->preview),
pango_language_get_sample_string (NULL));
gtk_widget_add_events (priv->preview, GDK_SCROLL_MASK);
/* Set the upper values of the spin/scale with G_MAXINT / PANGO_SCALE */
gtk_spin_button_set_range (GTK_SPIN_BUTTON (priv->size_spin),

4
gtk/gtkfontchooserwidget.ui
View File

@ -140,7 +140,7 @@
<property name="can_focus">True</property>
<property name="invisible_char">•</property>
<property name="text">Sample string goes here</property>
<signal name="scroll-event" handler="zoom_preview_cb" swapped="no"/>
<signal name="scroll-event" handler="resize_by_scroll_cb" swapped="no"/>
</object>
<packing>
<property name="left_attach">0</property>
@ -156,7 +156,7 @@
<property name="hexpand">True</property>
<property name="adjustment">slider_adjustment</property>
<property name="digits">0</property>
<signal name="scroll-event" handler="zoom_preview_cb" swapped="no"/>
<signal name="scroll-event" handler="resize_by_scroll_cb" swapped="no"/>
</object>
<packing>
<property name="left_attach">0</property>