WIP of prototype of option set list component: better label size and position.

1 files changed, 64 insertions, 15 deletions

diff --git a/option_set/option_set_list.gd b/option_set/option_set_list.gd
index 4114ae1..c027aa7 100644
--- a/option_set/option_set_list.gd
+++ b/option_set/option_set_list.gd
@@ -2,6 +2,7 @@ extends Control
 
 var vscrollbar: VScrollBar
 var labels: Array
+var positions: Array
 var items: Array = [
 	"item 1",
 	"item 22",
@@ -75,7 +76,39 @@ func _ready():
 #		label.valign = Label.VALIGN_CENTER
 #		labels.push_back(label)
 #		add_child(label)
+	
+	build_positions()
+
 
+var pos: Array
+func build_positions():
+	pos.clear()
+	positions.clear()
+	var label = labels[0]
+#	var label := Label.new()
+#	label.autowrap = true
+#	label.anchor_left = 0.0
+#	label.anchor_right = 1.0
+#	label.valign = Label.VALIGN_CENTER
+#	add_child(label)
+	var position := 0.0
+	var limit := rect_size.x
+#	positions.append(0)
+	for it in items:
+		var size := font.get_wordwrap_string_size(it, limit).y
+		var lines = size / font.get_height()
+		var height = size + font.get_descent() * lines
+#		label.text = it
+#		label.rect_position = Vector2(0.0, 500.0)
+#		label.rect_size.y = 0.0
+#		position += label.rect_size.y
+		pos.append(position)
+		position += height
+		positions.append(position)
+#		if label.rect_size.y != 14:
+#			breakpoint
+#	positions.append(position)
+#	remove_child(label)
 
 
 func _process(delta):
@@ -93,39 +126,55 @@ func _process(delta):
 			labels_pool.append(label)
 			remove_child(label)
 	
-	WIP
 	# @DAM Since the items may have different heights, we must look at the edge items
 	# in order to update the offsets.
+	build_positions()
+	
 	vscrollbar.min_value = 0
+	vscrollbar.max_value = rect_size.y
+	var ratio := rect_size.y / float(positions[positions.size()-1])
+	vscrollbar.visible = ratio < 1.0
+	vscrollbar.page = ratio * (vscrollbar.max_value - vscrollbar.min_value)
+	
 	var offset := vscrollbar.value
-	var offset_idx := int(floor(offset * items.size() / vscrollbar.max_value))
+	var bs_value := offset / ratio
+	var offset_idx := positions.bsearch(bs_value)
 
 #	offset_idx = 0
 	for idx in range(min(num_labels, items.size())):
+		if idx + offset_idx >= items.size():
+			labels[idx].text = ""
+			break
 		labels[idx].text = items[idx + offset_idx]
+#		labels[idx].text = items[min(idx + offset_idx, items.size()-1)]
+
+		var it = labels[idx].text
+		var limit = rect_size.x
+		var size := font.get_wordwrap_string_size(it, limit).y
+		var lines = size / font.get_height()
+		var height = size + font.get_descent() * lines
+		labels[idx].rect_size.y = height
+#		labels[idx].rect_size.y = font.get_wordwrap_string_size(labels[idx].text, rect_size.x).y
+#		labels[idx].rect_size.y = 0.0
+
+#		labels[idx].rect_position.y = positions[idx + offset_idx] - bs_value - positions[0]
+		labels[idx].rect_position.y = pos[idx + offset_idx] - bs_value
+
+	
 	
 #	if difference != 0:
 #		for idx in range(min(num_labels, items.size())):
 #			labels[idx].text = items[idx]
 	
-	if Engine.get_idle_frames() % 30 == 1:
-		print_debug("> %s | %5.3f | %d " % [labels.size(), offset, offset_idx])
+#	if Engine.get_idle_frames() % 30 == 1:
+#		print_debug("> %s | %5.3f > %s > %d | lastPos: %s" % [labels.size(), offset, bs_value, offset_idx, positions[-1]])
 	
-	var position := Vector2(0.0, -offset)
-	for it in labels:
-		it.rect_position = position
-		it.rect_size.y = 0
-#		var rect_size = font.get_wordwrap_string_size((it as Label).text, it.rect_size.x)
-#		it.rect_size.y = rect_size.y
-		position.y += it.rect_size.y
 	
 	# Adapt scrollbar according to options and drawable size.
 	# @DAM This does not take into consideration the items that are wrapped.
-	var ratio := rect_size.y / (items.size() * font.get_height())
-	vscrollbar.visible = ratio < 1.0
-	vscrollbar.page = ratio * (vscrollbar.max_value - vscrollbar.min_value)
+
+	
 	
-	vscrollbar.max_value = rect_size.y