forked from AuroraMiddleware/gtk
treeview: Redo tree line drawing using textures
Gets rid of the remaining cairo nodes used for line drawing.
This commit is contained in:
Timm Bäder
parent
4fba7f8c59
commit
8d1a2247e0
@ -514,6 +514,10 @@ struct _GtkTreeViewPrivate
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GdkTexture *horizontal_grid_line_texture;
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GdkTexture *vertical_grid_line_texture;
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GdkRGBA tree_line_color; /* Color used in the textures */
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GdkTexture *horizontal_tree_line_texture;
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GdkTexture *vertical_tree_line_texture;
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/* Here comes the bitfield */
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guint scroll_to_use_align : 1;
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@ -2220,6 +2224,8 @@ gtk_tree_view_destroy (GtkWidget *widget)
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g_clear_object (&priv->vadjustment);
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g_clear_object (&priv->horizontal_grid_line_texture);
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g_clear_object (&priv->vertical_grid_line_texture);
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g_clear_object (&priv->horizontal_tree_line_texture);
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g_clear_object (&priv->vertical_tree_line_texture);
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GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->destroy (widget);
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}
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@ -2284,7 +2290,6 @@ gtk_tree_view_realize (GtkWidget *widget)
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GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->realize (widget);
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for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
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_gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
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@ -4215,58 +4220,6 @@ invalidate_empty_focus (GtkTreeView *tree_view)
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gtk_widget_queue_draw (GTK_WIDGET (tree_view));
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}
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typedef enum {
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GTK_TREE_VIEW_TREE_LINE,
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} GtkTreeViewLineType;
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static void
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gtk_tree_view_snapshot_line (GtkTreeView *tree_view,
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GtkSnapshot *snapshot,
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GtkTreeViewLineType type,
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int x1,
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int y1,
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int x2,
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int y2)
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{
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GtkStyleContext *context;
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cairo_t *cr;
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cr = gtk_snapshot_append_cairo (snapshot,
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&GRAPHENE_RECT_INIT (
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MIN (x1, x2),
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MIN (y1, y2),
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ABS (x2 - x1) + 1,
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ABS (y2 - y1) + 1
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));
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context = gtk_widget_get_style_context (GTK_WIDGET (tree_view));
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switch (type)
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{
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case GTK_TREE_VIEW_TREE_LINE:
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{
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const GdkRGBA *color;
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color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_LEFT_COLOR));
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gdk_cairo_set_source_rgba (cr, color);
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cairo_set_line_width (cr, _TREE_VIEW_TREE_LINE_WIDTH);
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cairo_set_dash (cr, (double[]){ 1, 1 }, 2, 0.5);
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}
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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cairo_move_to (cr, x1 + 0.5, y1 + 0.5);
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cairo_line_to (cr, x2 + 0.5, y2 + 0.5);
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cairo_stroke (cr);
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cairo_destroy (cr);
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}
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static void
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gtk_tree_view_snapshot_grid_line (GtkTreeView *tree_view,
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GtkSnapshot *snapshot,
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@ -4342,6 +4295,81 @@ gtk_tree_view_snapshot_grid_line (GtkTreeView *tree_view,
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}
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}
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static void
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gtk_tree_view_snapshot_tree_line (GtkTreeView *tree_view,
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GtkSnapshot *snapshot,
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GtkOrientation orientation,
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const graphene_point_t *start,
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float size)
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{
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GtkTreeViewPrivate *priv = gtk_tree_view_get_instance_private (tree_view);
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GtkStyleContext *context;
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const GdkRGBA *tree_line_color;
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context = gtk_widget_get_style_context (GTK_WIDGET (tree_view));
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tree_line_color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context,
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GTK_CSS_PROPERTY_BORDER_LEFT_COLOR));
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if (!gdk_rgba_equal (tree_line_color, &priv->tree_line_color) ||
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(orientation == GTK_ORIENTATION_HORIZONTAL && !priv->horizontal_tree_line_texture) ||
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(orientation == GTK_ORIENTATION_VERTICAL && !priv->vertical_tree_line_texture))
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{
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cairo_surface_t *surface;
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unsigned char *data;
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g_clear_object (&priv->horizontal_tree_line_texture);
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g_clear_object (&priv->vertical_tree_line_texture);
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priv->tree_line_color = *tree_line_color;
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 2, 1);
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data = cairo_image_surface_get_data (surface);
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/* just color the first pixel... */
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data[0] = round (tree_line_color->blue * 255);
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data[1] = round (tree_line_color->green * 255);
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data[2] = round (tree_line_color->red * 255);
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data[3] = round (tree_line_color->alpha * 255);
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priv->horizontal_tree_line_texture = gdk_texture_new_for_surface (surface);
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cairo_surface_destroy (surface);
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 2);
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data = cairo_image_surface_get_data (surface);
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data[0] = round (tree_line_color->blue * 255);
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data[1] = round (tree_line_color->green * 255);
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data[2] = round (tree_line_color->red * 255);
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data[3] = round (tree_line_color->alpha * 255);
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priv->vertical_tree_line_texture = gdk_texture_new_for_surface (surface);
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cairo_surface_destroy (surface);
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}
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g_assert (priv->horizontal_tree_line_texture);
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g_assert (priv->vertical_tree_line_texture);
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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gtk_snapshot_push_repeat (snapshot,
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&GRAPHENE_RECT_INIT (
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start->x, start->y,
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size, 1),
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NULL);
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gtk_snapshot_append_texture (snapshot, priv->horizontal_tree_line_texture,
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&GRAPHENE_RECT_INIT (0, 0, 2, 1));
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gtk_snapshot_pop (snapshot);
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}
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else /* VERTICAL */
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{
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gtk_snapshot_push_repeat (snapshot,
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&GRAPHENE_RECT_INIT (
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start->x, start->y,
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1, size),
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NULL);
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gtk_snapshot_append_texture (snapshot, priv->vertical_tree_line_texture,
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&GRAPHENE_RECT_INIT (0, 0, 1, 2));
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gtk_snapshot_pop (snapshot);
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}
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}
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static void
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gtk_tree_view_snapshot_grid_lines (GtkTreeView *tree_view,
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GtkSnapshot *snapshot)
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@ -4781,46 +4809,55 @@ gtk_tree_view_bin_snapshot (GtkWidget *widget,
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if (rtl)
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x += background_area.width - 1;
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if ((node->flags & GTK_TREE_RBNODE_IS_PARENT) == GTK_TREE_RBNODE_IS_PARENT
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&& depth > 1)
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if ((node->flags & GTK_TREE_RBNODE_IS_PARENT) == GTK_TREE_RBNODE_IS_PARENT &&
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depth > 1)
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{
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gtk_tree_view_snapshot_line (tree_view, snapshot,
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GTK_TREE_VIEW_TREE_LINE,
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gtk_tree_view_snapshot_tree_line (tree_view,
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snapshot,
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GTK_ORIENTATION_HORIZONTAL,
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&(graphene_point_t) {
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x + expander_size * (depth - 1.5) * mult,
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y1,
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x + expander_size * (depth - 1.1) * mult,
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y1);
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y1
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},
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mult * expander_size * 0.4);
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}
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else if (depth > 1)
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{
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gtk_tree_view_snapshot_line (tree_view, snapshot,
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GTK_TREE_VIEW_TREE_LINE,
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gtk_tree_view_snapshot_tree_line (tree_view,
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snapshot,
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GTK_ORIENTATION_HORIZONTAL,
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&(graphene_point_t) {
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x + expander_size * (depth - 1.5) * mult,
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y1,
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x + expander_size * (depth - 0.5) * mult,
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y1);
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y1
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},
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mult * expander_size);
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}
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if (depth > 1)
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{
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gint i;
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int i;
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GtkTreeRBNode *tmp_node;
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GtkTreeRBTree *tmp_tree;
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if (!gtk_tree_rbtree_next (tree, node))
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gtk_tree_view_snapshot_line (tree_view, snapshot,
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GTK_TREE_VIEW_TREE_LINE,
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gtk_tree_view_snapshot_tree_line (tree_view,
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snapshot,
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GTK_ORIENTATION_VERTICAL,
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&(graphene_point_t) {
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x + expander_size * (depth - 1.5) * mult,
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y0,
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x + expander_size * (depth - 1.5) * mult,
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y1);
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y0
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},
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y1 - y0);
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else
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gtk_tree_view_snapshot_line (tree_view, snapshot,
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GTK_TREE_VIEW_TREE_LINE,
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gtk_tree_view_snapshot_tree_line (tree_view,
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snapshot,
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GTK_ORIENTATION_VERTICAL,
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&(graphene_point_t) {
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x + expander_size * (depth - 1.5) * mult,
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y0,
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x + expander_size * (depth - 1.5) * mult,
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y2);
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y0
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},
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y2 - y0);
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tmp_node = tree->parent_node;
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tmp_tree = tree->parent_tree;
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@ -4828,13 +4865,14 @@ gtk_tree_view_bin_snapshot (GtkWidget *widget,
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for (i = depth - 2; i > 0; i--)
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{
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if (gtk_tree_rbtree_next (tmp_tree, tmp_node))
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gtk_tree_view_snapshot_line (tree_view, snapshot,
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GTK_TREE_VIEW_TREE_LINE,
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gtk_tree_view_snapshot_tree_line (tree_view,
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snapshot,
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GTK_ORIENTATION_VERTICAL,
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&(graphene_point_t) {
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x + expander_size * (i - 0.5) * mult,
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y0,
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x + expander_size * (i - 0.5) * mult,
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y2);
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y0
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},
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y2 - y0);
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tmp_node = tmp_tree->parent_node;
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tmp_tree = tmp_tree->parent_tree;
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}
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