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entry: Use a CSS node for selection rendering

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This adds new possibilities for themes to render the selection
in fancy ways.
This commit is contained in:
Matthias Clasen 2015-11-10 13:36:16 -05:00
parent 3552f524c3
commit 2a03107677
1 changed files with 55 additions and 23 deletions
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78
gtk/gtkentry.c
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@ -120,7 +120,8 @@
* entry
* ├── image.left
* ├── image.right
* ╰── progress[.pulse]
* ├── [selection]
* ╰── [progress[.pulse]]
* ]|
*
* GtkEntry has a main node with the name entry. Depending on the properties
@ -130,6 +131,8 @@
* When the entry shows icons, it adds subnodes with the name image and the
* style class .left or .right, depending on where the icon appears.
*
* When the entry has a selection, it adds a subnode with the name sleciton.
*
* When the entry shows progress, it adds a subnode with the name progress.
* The node has the style class .pulse when the shown progress is pulsing.
*
@ -200,6 +203,7 @@ struct _GtkEntryPrivate
GtkGesture *drag_gesture;
GtkGesture *multipress_gesture;
GtkCssNode *selection_node;
GtkCssNode *progress_node;
gfloat xalign;
@ -3191,6 +3195,20 @@ update_icon_state (GtkWidget *widget,
gtk_css_node_set_state (icon_info->css_node, state);
}
static void
update_node_state (GtkEntry *entry)
{
GtkEntryPrivate *priv = entry->priv;
GtkStateFlags state;
state = gtk_widget_get_state_flags (GTK_WIDGET (entry));
if (priv->progress_node)
gtk_css_node_set_state (priv->progress_node, state);
if (priv->selection_node)
gtk_css_node_set_state (priv->selection_node, state);
}
static GtkCssNode *
get_entry_node (GtkWidget *widget)
{
@ -5104,6 +5122,7 @@ gtk_entry_state_flags_changed (GtkWidget *widget,
gtk_editable_select_region (GTK_EDITABLE (entry), priv->current_pos, priv->current_pos);
}
update_node_state (entry);
update_icon_state (widget, GTK_ENTRY_ICON_PRIMARY);
update_icon_state (widget, GTK_ENTRY_ICON_SECONDARY);
@ -6144,6 +6163,29 @@ gtk_entry_set_positions (GtkEntry *entry,
g_object_thaw_notify (G_OBJECT (entry));
if (priv->current_pos != priv->selection_bound)
{
if (!priv->selection_node)
{
GtkCssNode *widget_node;
widget_node = get_entry_node (GTK_WIDGET (entry));
priv->selection_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->selection_node, I_("selection"));
gtk_css_node_set_parent (priv->selection_node, widget_node);
gtk_css_node_set_state (priv->selection_node, gtk_css_node_get_state (widget_node));
g_object_unref (priv->selection_node);
}
}
else
{
if (priv->selection_node)
{
gtk_css_node_set_parent (priv->selection_node, NULL);
priv->selection_node = NULL;
}
}
if (changed)
{
gtk_entry_move_adjustments (entry);
@ -6473,42 +6515,32 @@ draw_text_with_color (GtkEntry *entry,
gint *ranges;
gint n_ranges, i;
PangoRectangle logical_rect;
GdkRGBA selection_color, text_color;
GdkRGBA text_color;
GtkStyleContext *context;
GtkStateFlags state;
context = gtk_widget_get_style_context (widget);
gtk_style_context_save_to_node (context, priv->selection_node);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
gtk_entry_get_pixel_ranges (entry, &ranges, &n_ranges);
gtk_style_context_save (context);
state = gtk_style_context_get_state (context);
state |= GTK_STATE_FLAG_SELECTED;
gtk_style_context_set_state (context, state);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
gtk_style_context_get_background_color (context, state, &selection_color);
G_GNUC_END_IGNORE_DEPRECATIONS
gtk_style_context_get_color (context, state, &text_color);
gtk_style_context_restore (context);
for (i = 0; i < n_ranges; ++i)
gtk_render_background (context, cr,
- priv->scroll_offset + ranges[2 * i], y,
ranges[2 * i + 1], logical_rect.height);
for (i = 0; i < n_ranges; ++i)
cairo_rectangle (cr,
- priv->scroll_offset + ranges[2 * i],
y,
ranges[2 * i + 1],
logical_rect.height);
- priv->scroll_offset + ranges[2 * i], y,
ranges[2 * i + 1], logical_rect.height);
cairo_clip (cr);
gdk_cairo_set_source_rgba (cr, &selection_color);
cairo_paint (cr);
cairo_move_to (cr, x, y);
gtk_style_context_get_color (context, gtk_style_context_get_state (context), &text_color);
gdk_cairo_set_source_rgba (cr, &text_color);
pango_cairo_show_layout (cr, layout);
g_free (ranges);
gtk_style_context_restore (context);
}
cairo_restore (cr);
}