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Find the top y value of selections for indicator pos.

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This commit is contained in:
Michael Drake 2013-08-17 14:37:24 +01:00
parent d1cd950327
commit e5a4c3d4c9
1 changed files with 36 additions and 3 deletions
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39
desktop/treeview.c
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@ -517,6 +517,33 @@ static inline treeview_node * treeview_node_next(treeview_node *node, bool full)
}
/* Find y position of the top of a node
*
* \param tree Treeview object to delete node from
* \param node Node to get position of
* \return node's y position
*/
static int treeview_node_y(treeview *tree, treeview_node *node)
{
treeview_node *n;
int y = 0;
assert(tree != NULL);
assert(tree->root != NULL);
n = treeview_node_next(tree->root, false);
while (n != NULL && n != node) {
y += (node->type == TREE_NODE_ENTRY) ?
node->height : tree_g.line_height;
n = treeview_node_next(n, false);
}
return y;
}
/* Walk a treeview subtree, calling a callback at each node (depth first)
*
* \param root Root to walk tree from (doesn't get a callback call)
@ -1895,6 +1922,7 @@ static bool treeview_set_move_indicator(treeview *tree, bool need_redraw,
treeview_node *target, int node_height,
int node_y, int mouse_y, struct rect *rect)
{
treeview_node *orig = target;
enum treeview_target_pos target_pos;
int mouse_pos = mouse_y - node_y;
int x;
@ -1903,9 +1931,6 @@ static bool treeview_set_move_indicator(treeview *tree, bool need_redraw,
assert(tree->root != NULL);
assert(tree->root->children != NULL);
node_y += (tree_g.line_height -
treeview_res[TREE_RES_ARROW].height + 1) / 2;
if (target->flags & TREE_NODE_SELECTED) {
/* Find top selected ancestor */
while (target->parent &&
@ -1968,12 +1993,20 @@ static bool treeview_set_move_indicator(treeview *tree, bool need_redraw,
}
}
/* Offset for ABOVE / BELOW */
if (target_pos == TV_TARGET_ABOVE) {
if (target != orig) {
node_y = treeview_node_y(tree, target);
}
node_y -= (tree_g.line_height + 1) / 2;
} else if (target_pos == TV_TARGET_BELOW) {
node_y += node_height - (tree_g.line_height + 1) / 2;
}
/* Oftsets are all relative to centred (INSIDE) */
node_y += (tree_g.line_height -
treeview_res[TREE_RES_ARROW].height + 1) / 2;
if (target != NULL) {
x = target->inset + tree_g.move_offset;
} else {