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treeview: Draw column reordering arrows with Cairo

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This commit is contained in:
Benjamin Otte 2010-07-15 03:02:59 +02:00
parent 41621e212b
commit 526aac1fda
1 changed files with 41 additions and 54 deletions
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95
gtk/gtktreeview.c
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@ -3401,6 +3401,7 @@ gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
GdkWindowAttr attributes;
guint attributes_mask;
cairo_t *cr;
if (!reorder ||
reorder->left_column == tree_view->priv->drag_column ||
@ -3426,9 +3427,6 @@ gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
/* We want to draw the rectangle over the initial location. */
if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
{
GdkGC *gc;
GdkColor col;
if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
{
if (tree_view->priv->drag_highlight_window)
@ -3452,14 +3450,14 @@ gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
gc = gdk_gc_new (mask);
col.pixel = 1;
gdk_gc_set_foreground (gc, &col);
gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
col.pixel = 0;
gdk_gc_set_foreground(gc, &col);
gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
g_object_unref (gc);
cr = gdk_cairo_create (mask);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_rectangle (cr, 1, 1, width - 2, height - 2);
cairo_stroke (cr);
cairo_destroy (cr);
gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
mask, 0, 0);
@ -3470,8 +3468,6 @@ gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
{
gint i, j = 1;
GdkGC *gc;
GdkColor col;
width = tree_view->priv->expander_size;
@ -3515,25 +3511,20 @@ gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
gc = gdk_gc_new (mask);
col.pixel = 1;
gdk_gc_set_foreground (gc, &col);
gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
cr = gdk_cairo_create (mask);
/* Draw the 2 arrows as per above */
col.pixel = 0;
gdk_gc_set_foreground (gc, &col);
for (i = 0; i < width; i ++)
{
if (i == (width/2 - 1))
continue;
gdk_draw_line (mask, gc, i, j, i, height - j);
if (i < (width/2 - 1))
j++;
else
j--;
}
g_object_unref (gc);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_move_to (cr, 0, 0);
cairo_line_to (cr, width, 0);
cairo_line_to (cr, width / 2., width / 2);
cairo_move_to (cr, 0, height);
cairo_line_to (cr, width, height);
cairo_line_to (cr, width / 2., height - width / 2.);
cairo_fill (cr);
cairo_destroy (cr);
gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
mask, 0, 0);
if (mask) g_object_unref (mask);
@ -3546,8 +3537,6 @@ gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
{
gint i, j = 1;
GdkGC *gc;
GdkColor col;
width = tree_view->priv->expander_size;
@ -3590,28 +3579,26 @@ gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
gc = gdk_gc_new (mask);
col.pixel = 1;
gdk_gc_set_foreground (gc, &col);
gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
cr = gdk_cairo_create (mask);
/* Draw the 2 arrows as per above */
col.pixel = 0;
gdk_gc_set_foreground (gc, &col);
j = tree_view->priv->expander_size;
for (i = 0; i < width; i ++)
{
gint k;
if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
k = width - i - 1;
else
k = i;
gdk_draw_line (mask, gc, k, j, k, height - j);
gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
j--;
}
g_object_unref (gc);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
/* mirror if we're on the left */
if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
{
cairo_translate (cr, width, 0);
cairo_scale (cr, -1, 1);
}
cairo_move_to (cr, 0, 0);
cairo_line_to (cr, width, width);
cairo_line_to (cr, 0, tree_view->priv->expander_size);
cairo_move_to (cr, 0, height);
cairo_line_to (cr, width, height - width);
cairo_line_to (cr, 0, height - tree_view->priv->expander_size);
cairo_fill (cr);
cairo_destroy (cr);
gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
mask, 0, 0);
if (mask) g_object_unref (mask);