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iconview: Use a CSS node for rubberband drawing

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Use a CSS node with name rubberband to draw the rubberband
selection.
This commit is contained in:
Matthias Clasen 2015-11-10 00:25:19 -05:00
parent ee76f9bfed
commit 318269550b
1 changed files with 38 additions and 20 deletions
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58
gtk/gtkiconview.c
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@ -44,6 +44,9 @@
#include "gtktreednd.h"
#include "gtktypebuiltins.h"
#include "gtkprivate.h"
#include "gtkcssnodeprivate.h"
#include "gtkwidgetprivate.h"
#include "gtkstylecontextprivate.h"
#include "a11y/gtkiconviewaccessibleprivate.h"
/**
@ -65,7 +68,9 @@
*
* # CSS nodes
*
*
* GtkIconView has a single CSS node with name iconview and style class .view.
* For rubberband selection, a subnode with name rubberband is used.
*/
#define SCROLL_EDGE_SIZE 15
@ -2537,35 +2542,48 @@ gtk_icon_view_start_rubberbanding (GtkIconView *icon_view,
gint x,
gint y)
{
GtkIconViewPrivate *priv = icon_view->priv;
GList *items;
GtkCssNode *widget_node;
if (icon_view->priv->rubberband_device)
if (priv->rubberband_device)
return;
for (items = icon_view->priv->items; items; items = items->next)
for (items = priv->items; items; items = items->next)
{
GtkIconViewItem *item = items->data;
item->selected_before_rubberbanding = item->selected;
}
icon_view->priv->rubberband_x1 = x;
icon_view->priv->rubberband_y1 = y;
icon_view->priv->rubberband_x2 = x;
icon_view->priv->rubberband_y2 = y;
icon_view->priv->doing_rubberband = TRUE;
icon_view->priv->rubberband_device = device;
priv->rubberband_x1 = x;
priv->rubberband_y1 = y;
priv->rubberband_x2 = x;
priv->rubberband_y2 = y;
priv->doing_rubberband = TRUE;
priv->rubberband_device = device;
widget_node = gtk_widget_get_css_node (GTK_WIDGET (icon_view));
priv->rubberband_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->rubberband_node, I_("rubberband"));
gtk_css_node_set_parent (priv->rubberband_node, widget_node);
gtk_css_node_set_state (priv->rubberband_node, gtk_css_node_get_state (widget_node));
g_object_unref (priv->rubberband_node);
}
static void
gtk_icon_view_stop_rubberbanding (GtkIconView *icon_view)
{
if (!icon_view->priv->doing_rubberband)
GtkIconViewPrivate *priv = icon_view->priv;
if (!priv->doing_rubberband)
return;
icon_view->priv->doing_rubberband = FALSE;
icon_view->priv->rubberband_device = NULL;
priv->doing_rubberband = FALSE;
priv->rubberband_device = NULL;
gtk_css_node_set_parent (priv->rubberband_node, NULL);
priv->rubberband_node = NULL;
gtk_widget_queue_draw (GTK_WIDGET (icon_view));
}
@ -3119,23 +3137,23 @@ gtk_icon_view_paint_item (GtkIconView *icon_view,
}
static void
gtk_icon_view_paint_rubberband (GtkIconView *icon_view,
cairo_t *cr)
gtk_icon_view_paint_rubberband (GtkIconView *icon_view,
cairo_t *cr)
{
GtkIconViewPrivate *priv = icon_view->priv;
GtkStyleContext *context;
GdkRectangle rect;
cairo_save (cr);
rect.x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2);
rect.y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2);
rect.width = ABS (icon_view->priv->rubberband_x1 - icon_view->priv->rubberband_x2) + 1;
rect.height = ABS (icon_view->priv->rubberband_y1 - icon_view->priv->rubberband_y2) + 1;
rect.x = MIN (priv->rubberband_x1, priv->rubberband_x2);
rect.y = MIN (priv->rubberband_y1, priv->rubberband_y2);
rect.width = ABS (priv->rubberband_x1 - priv->rubberband_x2) + 1;
rect.height = ABS (priv->rubberband_y1 - priv->rubberband_y2) + 1;
context = gtk_widget_get_style_context (GTK_WIDGET (icon_view));
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_RUBBERBAND);
gtk_style_context_save_to_node (context, priv->rubberband_node);
gdk_cairo_rectangle (cr, &rect);
cairo_clip (cr);