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GtkFontChooser: Fix size synchronization between slider and spin button

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This commit is contained in:
Alberto Ruiz 2011-07-25 15:16:09 +01:00 committed by Matthias Clasen
parent cabfcbd18d
commit 1dda502bcb
1 changed files with 42 additions and 30 deletions
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72
gtk/gtkfontchooser.c
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@ -86,7 +86,7 @@ struct _GtkFontChooserPrivate
GtkWidget *size_spin;
GtkWidget *size_slider;
gboolean ignore_slider;
gboolean stop_notify;
gint size;
PangoFontFace *face;
@ -326,12 +326,14 @@ icon_press_cb (GtkEntry *entry,
void
slider_change_cb (GtkAdjustment *adjustment, gpointer data)
{
GtkFontChooserPrivate *priv = (GtkFontChooserPrivate*)data;
GtkFontChooserPrivate *priv = (GtkFontChooserPrivate*)data;
GtkAdjustment *spin_adj = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON (priv->size_spin));
gdouble slider_value = gtk_adjustment_get_value (adjustment);
gdouble spin_value = gtk_adjustment_get_value (spin_adj);
priv->ignore_slider = TRUE;
gtk_adjustment_set_value (gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON (priv->size_spin)),
gtk_adjustment_get_value (adjustment));
if (slider_value != spin_value)
gtk_adjustment_set_value (spin_adj,
gtk_adjustment_get_value (adjustment));
}
void
@ -340,6 +342,7 @@ spin_change_cb (GtkAdjustment *adjustment, gpointer data)
PangoFontDescription *desc;
GtkFontChooser *fontchooser = (GtkFontChooser*)data;
GtkFontChooserPrivate *priv = fontchooser->priv;
GtkAdjustment *slider_adj = gtk_range_get_adjustment (GTK_RANGE (priv->size_slider));
gdouble size = gtk_adjustment_get_value (adjustment);
priv->size = ((gint)size) * PANGO_SCALE;
@ -347,23 +350,38 @@ spin_change_cb (GtkAdjustment *adjustment, gpointer data)
desc = pango_context_get_font_description (gtk_widget_get_pango_context (priv->preview));
pango_font_description_set_size (desc, priv->size);
gtk_widget_override_font (priv->preview, desc);
g_object_notify (G_OBJECT (fontchooser), "font-name");
if (priv->ignore_slider)
{
priv->ignore_slider = FALSE;
return;
}
GtkAdjustment *slider_adj = gtk_range_get_adjustment (GTK_RANGE (priv->size_slider));
if (size < gtk_adjustment_get_lower (slider_adj))
gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_lower (slider_adj));
else if (size > gtk_adjustment_get_upper (slider_adj))
gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_upper (slider_adj));
if (priv->stop_notify)
priv->stop_notify = FALSE;
else
gtk_adjustment_set_value (slider_adj, size);
g_object_notify (G_OBJECT (fontchooser), "font-name");
/* If the new value is lower than the lower bound of the slider, we set
* the slider adjustment to the lower bound value if it is not already set
*/
if (size < gtk_adjustment_get_lower (slider_adj) &&
gtk_adjustment_get_value (slider_adj) != gtk_adjustment_get_lower (slider_adj))
{
gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_lower (slider_adj));
priv->stop_notify = TRUE;
}
/* If the new value is upper than the upper bound of the slider, we set
* the slider adjustment to the upper bound value if it is not already set
*/
else if (size > gtk_adjustment_get_upper (slider_adj) &&
gtk_adjustment_get_value (slider_adj) != gtk_adjustment_get_upper (slider_adj))
{
gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_upper (slider_adj));
priv->stop_notify = TRUE;
}
/* If the new value is not already set on the slider we set it */
else if (size != gtk_adjustment_get_value (slider_adj))
{
gtk_adjustment_set_value (slider_adj, size);
priv->stop_notify = TRUE;
}
gtk_widget_queue_draw (priv->preview);
}
@ -393,15 +411,9 @@ set_range_marks (GtkFontChooserPrivate *priv,
value = gtk_adjustment_get_value (adj);
if (value > (gdouble) sizes[length-1])
{
gtk_adjustment_set_value (adj, (gdouble) sizes[length-1]);
priv->ignore_slider = TRUE;
}
gtk_adjustment_set_value (adj, (gdouble) sizes[length-1]);
else if (value < (gdouble) sizes[0])
{
gtk_adjustment_set_value (adj, (gdouble) sizes[0]);
priv->ignore_slider = TRUE;
}
gtk_adjustment_set_value (adj, (gdouble) sizes[0]);
for (i=0; i<length; i++)
gtk_scale_add_mark (GTK_SCALE (size_slider),
@ -607,7 +619,7 @@ gtk_font_chooser_init (GtkFontChooser *fontchooser)
"value-changed", G_CALLBACK (slider_change_cb), priv);
g_signal_connect (G_OBJECT (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin))),
"value-changed", G_CALLBACK (spin_change_cb), fontchooser);
priv->ignore_slider = FALSE;
priv->stop_notify = FALSE;
/* Font selection callback */
g_signal_connect (G_OBJECT (priv->family_face_list), "cursor-changed",