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make ScrollPanelWidget cheaper

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This commit is contained in:
Chris Forbes
2011-05-07 11:30:59 +12:00
committed by Paul Chote
parent 9ee7fcdff1
commit 4d4a07b791
1 changed files with 10 additions and 8 deletions
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18
OpenRA.Game/Widgets/ScrollPanelWidget.cs
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@@ -62,18 +62,20 @@ namespace OpenRA.Widgets
if (!IsVisible()) if (!IsVisible())
return; return;
var ScrollbarHeight = RenderBounds.Height - 2 * ScrollbarWidth; var rb = RenderBounds;
var thumbHeight = ContentHeight == 0 ? 0 : (int)(ScrollbarHeight*Math.Min(RenderBounds.Height*1f/ContentHeight, 1f)); var ScrollbarHeight = rb.Height - 2 * ScrollbarWidth;
var thumbOrigin = RenderBounds.Y + ScrollbarWidth + (int)((ScrollbarHeight - thumbHeight)*(-1f*ListOffset/(ContentHeight - RenderBounds.Height)));
var thumbHeight = ContentHeight == 0 ? 0 : (int)(ScrollbarHeight*Math.Min(rb.Height*1f/ContentHeight, 1f));
var thumbOrigin = rb.Y + ScrollbarWidth + (int)((ScrollbarHeight - thumbHeight)*(-1f*ListOffset/(ContentHeight - rb.Height)));
if (thumbHeight == ScrollbarHeight) if (thumbHeight == ScrollbarHeight)
thumbHeight = 0; thumbHeight = 0;
backgroundRect = new Rectangle(RenderBounds.X, RenderBounds.Y, RenderBounds.Width - ScrollbarWidth, RenderBounds.Height); backgroundRect = new Rectangle(rb.X, rb.Y, rb.Width - ScrollbarWidth, rb.Height);
upButtonRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Y, ScrollbarWidth, ScrollbarWidth); upButtonRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Y, ScrollbarWidth, ScrollbarWidth);
downButtonRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Bottom - ScrollbarWidth, ScrollbarWidth, ScrollbarWidth); downButtonRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Bottom - ScrollbarWidth, ScrollbarWidth, ScrollbarWidth);
scrollbarRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Y + ScrollbarWidth, ScrollbarWidth, ScrollbarHeight); scrollbarRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Y + ScrollbarWidth, ScrollbarWidth, ScrollbarHeight);
thumbRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, thumbOrigin, ScrollbarWidth, thumbHeight); thumbRect = new Rectangle(rb.Right - ScrollbarWidth, thumbOrigin, ScrollbarWidth, thumbHeight);
string upButtonBg = UpPressed || thumbHeight == 0 ? "dialog3" : "dialog2"; string upButtonBg = UpPressed || thumbHeight == 0 ? "dialog3" : "dialog2";
string downButtonBg = DownPressed || thumbHeight == 0 ? "dialog3" : "dialog2"; string downButtonBg = DownPressed || thumbHeight == 0 ? "dialog3" : "dialog2";