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Cnc scrollpanel with support for rollover etc.

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This commit is contained in:
Paul Chote
2011-05-07 21:43:32 +12:00
parent d349c5341e
commit 188a16fc08
6 changed files with 84 additions and 16 deletions
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67
OpenRA.Mods.Cnc/Widgets/CncMenuButton.cs
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@@ -82,5 +82,72 @@ namespace OpenRA.Mods.Cnc.Widgets
new float2(rect.Left + 2, rect.Top + 2));
}
}
public class CncScrollPanelWidget : ScrollPanelWidget
{
public CncScrollPanelWidget()
: base() { }
protected CncScrollPanelWidget(CncScrollPanelWidget widget)
: base(widget) { }
public override void Draw()
{
if (!IsVisible())
return;
var rb = RenderBounds;
var ScrollbarHeight = rb.Height - 2 * ScrollbarWidth;
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)
thumbHeight = 0;
backgroundRect = new Rectangle(rb.X, rb.Y, rb.Width - ScrollbarWidth + 1, rb.Height);
upButtonRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Y, ScrollbarWidth, ScrollbarWidth);
downButtonRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Bottom - ScrollbarWidth, ScrollbarWidth, ScrollbarWidth);
scrollbarRect = new Rectangle(rb.Right - ScrollbarWidth, rb.Y + ScrollbarWidth - 1, ScrollbarWidth, ScrollbarHeight + 2);
thumbRect = new Rectangle(rb.Right - ScrollbarWidth, thumbOrigin, ScrollbarWidth, thumbHeight);
string upButtonBg = (thumbHeight == 0 || ListOffset >= 0) ? "button-disabled" :
UpPressed ? "button-pressed" :
upButtonRect.Contains(Viewport.LastMousePos) ? "button-hover" : "button";
string downButtonBg = (thumbHeight == 0 || ListOffset <= Bounds.Height - ContentHeight) ? "button-disabled" :
DownPressed ? "button-pressed" :
downButtonRect.Contains(Viewport.LastMousePos) ? "button-hover" : "button";
string scrollbarBg = "panel-gray";
string thumbBg = (Focused && thumbRect.Contains(Viewport.LastMousePos)) ? "button-pressed" :
thumbRect.Contains(Viewport.LastMousePos) ? "button-hover" : "button";
WidgetUtils.DrawPanel(scrollbarBg, scrollbarRect);
WidgetUtils.DrawPanel("panel-gray", backgroundRect);
WidgetUtils.DrawPanel(upButtonBg, upButtonRect);
WidgetUtils.DrawPanel(downButtonBg, downButtonRect);
if (thumbHeight > 0)
WidgetUtils.DrawPanel(thumbBg, thumbRect);
WidgetUtils.DrawRGBA(ChromeProvider.GetImage("scrollbar", "up_arrow"),
new float2(upButtonRect.Left + 4, upButtonRect.Top + 4));
WidgetUtils.DrawRGBA(ChromeProvider.GetImage("scrollbar", "down_arrow"),
new float2(downButtonRect.Left + 4, downButtonRect.Top + 4));
Game.Renderer.EnableScissor(backgroundRect.X + 1, backgroundRect.Y + 1, backgroundRect.Width - 2, backgroundRect.Height - 2);
foreach (var child in Children)
child.Draw();
Game.Renderer.DisableScissor();
}
public void ScrollToBottom()
{
ListOffset = Math.Min(0,Bounds.Height - ContentHeight);
}
}
}