From 52bd0792d15e9a814cd38cf77b26784003b8569f Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sun, 29 Jan 2012 15:16:17 +0000
Subject:

---
 src/ui/listview.cc | 77 ++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 55 insertions(+), 22 deletions(-)

(limited to 'src/ui/listview.cc')

diff --git a/src/ui/listview.cc b/src/ui/listview.cc
index 99bcd3c..cd87639 100644
--- a/src/ui/listview.cc
+++ b/src/ui/listview.cc
@@ -11,12 +11,16 @@ namespace ui
 
 ListView::ListView(Widget *parent) : Widget(parent)
 {
+	listview_scroll = 0.0f;
+	listview_selecteditem = 0;
+	
 	set_label("listview");
 	set_border(true);
 	set_background(true);
 	
-	listview_scroll = 0.0f;
-	listview_selecteditem = 0;
+	listview_scrollbar = new ScrollBar(this);
+	listview_scrollbar->set_background(false);
+	listview_scrollbar->set_border(false);
 }
 
 ListView::~ListView()
@@ -30,11 +34,11 @@ void ListView::set_scroll(float scroll)
 		listview_scroll = 0;
 	
 	// calculate maximal scroll size
-	float top = 0;
-	for (Children::iterator it = children().begin(); it != children().end(); it++) {		
-		top += (*it)->height();
+	float total_height = 0;
+	for (Children::iterator it = children().begin(); it != children().end(); it++) {
+		total_height += (*it)->height();
 	}
-	if (listview_scroll > top) listview_scroll = top;
+	if (listview_scroll > total_height) listview_scroll = total_height;
 }
 
 void ListView::inc_scroll(float scroll)
@@ -49,24 +53,33 @@ void ListView::dec_scroll(float scroll)
 	
 void ListView::resize()
 {
-	float content_top = 0;
+	listview_scrollbar->set_size(font()->height(), height());
+	listview_scrollbar->set_location(width() - listview_scrollbar->width(), 0);
+	
+	float total_height = 0;
 	
 	// reposition all children within the container
 	for (Children::iterator it = children().begin(); it != children().end(); it++) {
-		(*it)->set_width(width());
-		if (content_top - listview_scroll < 0) {
-			// child widget is invisible
-			(*it)->hide();
-		} else if ((content_top - listview_scroll) >= height()) {
-			// child widget is invisible
-			(*it)->hide();
-		} else {
-			(*it)->show();
-			(*it)->set_location(0, content_top - listview_scroll);
+		if ((*it) != static_cast<Widget *>(listview_scrollbar)) {
+			(*it)->set_width(width() - listview_scrollbar->width());
+			if (total_height - listview_scroll < 0) {
+				// child widget is invisible
+				(*it)->hide();
+			} else if ((total_height - listview_scroll) >= height()) {
+				// child widget is invisible
+				(*it)->hide();
+			} else {
+				(*it)->show();
+				(*it)->set_location(0, total_height - listview_scroll);
+			}
+			
+			total_height += (*it)->height();
 		}
-		
-		content_top += (*it)->height();
 	}
+	
+	listview_scrollbar->set_range(0.0f, total_height);
+	listview_scrollbar->set_value(listview_scroll);
+	
 }
 
 void ListView::deselect()
@@ -85,11 +98,23 @@ void ListView::clear()
 {
 	listview_selecteditem = 0;
 	remove_children();
+	
+	listview_scrollbar = new ScrollBar(this);
+	listview_scrollbar->set_background(false);
+	listview_scrollbar->set_border(false);
+	listview_scrollbar->set_range(0.0f, 0.0f);
 }
 
 bool ListView::on_emit(Widget *sender, const Event event, void *data)
 {
-	if ((sender->parent() == this) && (event == Widget::EventListItemClicked)) {
+	if (sender == listview_scrollbar) {
+		if (event == Widget::EventScrollBarChanged)  {
+			listview_scroll = listview_scrollbar->value();
+			resize();
+		}
+		return true;
+		
+	} else if ((sender->parent() == this) && (event == Widget::EventListItemClicked)) {
 		listview_selecteditem = static_cast<ListItem *>(sender);
 		emit(EventListViewChanged);
 		return true;
@@ -102,7 +127,11 @@ bool compare_listitems(const Widget *first, const Widget *second)
 {
 	const ListItem *firstitem = dynamic_cast<const ListItem *>(first);
 	const ListItem *seconditem = dynamic_cast<const ListItem *>(second);
-	assert(firstitem && seconditem);
+	
+	if (!firstitem)
+		return true;
+	else if (!seconditem)
+		return false;
 	
 	if (firstitem->sortkey() < seconditem->sortkey()) {
 		return true;
@@ -122,7 +151,11 @@ bool compare_listitems_reverse(const Widget *first, const Widget *second)
 {
 	const ListItem *firstitem = dynamic_cast<const ListItem *>(first);
 	const ListItem *seconditem = dynamic_cast<const ListItem *>(second);
-	assert(firstitem && seconditem);
+
+	if (!firstitem)
+		return true;
+	else if (!seconditem)
+		return false;
 	
 	if (firstitem->sortkey() < seconditem->sortkey()) {
 		return false;
-- 
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