116 lines
4.1 KiB
C#
116 lines
4.1 KiB
C#
using System;
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using System.Collections;
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using System.Text;
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namespace DevComponents.DotNetBar
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{
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internal class RibbonTabItemContainer : GenericItemContainer
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{
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protected override void OnStyleChanged()
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{
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eDotNetBarStyle effectiveStyle = this.EffectiveStyle;
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if (effectiveStyle == eDotNetBarStyle.Windows7)
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{
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this.PaddingLeft = 0;
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this.PaddingRight = 0;
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this.PaddingTop = 0;
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}
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else if (effectiveStyle == eDotNetBarStyle.Office2010 || StyleManager.IsMetro(effectiveStyle))
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{
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this.PaddingLeft = 0;
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this.PaddingRight = 1;
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this.PaddingTop = 1;
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}
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else
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{
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this.PaddingLeft = 1;
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this.PaddingRight = 1;
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this.PaddingTop = 1;
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}
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base.OnStyleChanged();
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}
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protected override bool OnBeforeLayout()
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{
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if (this.Orientation != eOrientation.Horizontal)
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return true;
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ArrayList ribbonTabItems = new ArrayList();
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int totalWidth = 0;
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int totalRibbonTabItemsWidth = 0;
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int minimumSize = 24;
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int availableWidth = this.WidthInternal - (this.PaddingLeft + this.PaddingRight);
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foreach (BaseItem item in this.SubItems)
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{
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if (!item.Visible)
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continue;
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item.RecalcSize();
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totalWidth += (item.WidthInternal + this.ItemSpacing);
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if (item is RibbonTabItem)
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{
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// Reset reduced size flag
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((RibbonTabItem)item).ReducedSize = false;
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ribbonTabItems.Add(item);
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totalRibbonTabItemsWidth += (item.WidthInternal + this.ItemSpacing);
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}
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}
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int totalReduction = totalWidth - availableWidth;
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if (totalWidth > availableWidth && totalRibbonTabItemsWidth > 0)
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{
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if (totalReduction >= totalRibbonTabItemsWidth - (minimumSize * ribbonTabItems.Count + ribbonTabItems.Count - 1))
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{
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foreach (RibbonTabItem item in ribbonTabItems)
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{
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item.WidthInternal = minimumSize;
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item.ReducedSize = true;
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}
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}
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else
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{
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float reduction = 1 - (float)totalReduction / (float)totalRibbonTabItemsWidth;
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bool reducedSize = false;
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if (reduction <= .75)
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reducedSize = true;
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for (int i = 0; i < ribbonTabItems.Count; i++)
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{
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RibbonTabItem item = ribbonTabItems[i] as RibbonTabItem;
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item.ReducedSize = reducedSize;
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if (i == ribbonTabItems.Count - 1)
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{
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item.WidthInternal -= totalReduction;
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}
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else
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{
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int width = (int)(item.WidthInternal * reduction);
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if (width < minimumSize)
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width = minimumSize;
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totalReduction -= (item.WidthInternal - width);
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item.WidthInternal = width;
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}
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}
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}
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}
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return false;
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}
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protected override bool ShouldCollapseParentItem()
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{
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BaseItem expandedItem = ExpandedItem();
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if (expandedItem is ApplicationButton)
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{
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RibbonStrip strip = this.ContainerControl as RibbonStrip;
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if (strip != null)
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{
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BaseItem item = strip.HitTest(MouseDownPt);
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if (item is SystemCaptionItem)
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return false;
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}
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}
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return true;
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}
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}
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}
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