internal void InvokeMeasureTabItem(MeasureTabItemEventArgs e)
{
if (MeasureTabItem != null)
MeasureTabItem(this, e);
}
/// <summary>
/// Resizes the content block and sets it's Bounds property to reflect new size.
/// </summary>
/// <param name="block">Content block to resize.</param>
public override void Layout(IBlock block, Size availableSize)
{
if(this.Graphics==null)
throw(new InvalidOperationException("Graphics property must be set to valid instance of Graphics object."));
TabItem tab=block as TabItem;
if(!tab.Visible)
return;
int width=0;
int height=0;
bool isVertical = (tab.Parent != null && (tab.Parent.TabAlignment == eTabStripAlignment.Left || tab.Parent.TabAlignment == eTabStripAlignment.Right) && !m_HorizontalText);
eTabStripStyle style=tab.Parent.Style;
eTextFormat strFormat=eTextFormat.Default;
Image tabImage=tab.GetImage();
if(tab.Icon!=null)
{
width+=tab.IconSize.Width;
if (style != eTabStripStyle.OneNote && style != eTabStripStyle.Office2007Document)
width+=m_ImagePadding;
height=tab.IconSize.Height+m_PaddingHeight;
}
else if(tabImage!=null)
{
width+=tabImage.Width;
if (style != eTabStripStyle.OneNote && style != eTabStripStyle.Office2007Document)
width+=m_ImagePadding;
height=tabImage.Height+m_PaddingHeight;
}
if((!tab.Parent.DisplaySelectedTextOnly || tab==tab.Parent.SelectedTab))
{
string text = tab.Text;
if (text == "")
text = "M";
Font font=tab.Parent.Font;
if (tab.Parent.SelectedTabFont != null && (tab == tab.Parent.SelectedTab ||
tab.Parent.CloseButtonOnTabsAlwaysDisplayed && tab.Parent.CloseButtonPosition == eTabCloseButtonPosition.Right ||
((tab.Parent.TabAlignment == eTabStripAlignment.Left || tab.Parent.TabAlignment == eTabStripAlignment.Right) && m_HorizontalText)))
font=tab.Parent.SelectedTabFont;
Size textSize = Size.Empty;
if(isVertical)
textSize = TextDrawing.MeasureStringLegacy(this.Graphics, text, font, Size.Empty, strFormat);
else
textSize=TextDrawing.MeasureString(this.Graphics,text,font,0,strFormat);
width+=textSize.Width;
if(style!=eTabStripStyle.OneNote)
width+=m_TextPadding;
if(textSize.Height>height)
height=(int)(textSize.Height+m_PaddingHeight);
}
if (m_CloseButtonOnTabs && tab.CloseButtonVisible)
width += m_CloseButtonSize.Width + m_CloseButtonSpacing * 2;
width+=m_PaddingWidth;
if(tab.IsSelected)
width+=m_SelectedPaddingWidth;
if (m_FixedTabSize.Width > 0)
width = m_FixedTabSize.Width;
if (m_FixedTabSize.Height > 0)
height = m_FixedTabSize.Height;
if (style == eTabStripStyle.OneNote || style == eTabStripStyle.Office2007Document)
width += (int)(height * .5)-4;
Rectangle bounds = new Rectangle(0, 0, width, height);
if (isVertical)
bounds = new Rectangle(0, 0, height, width);
if (m_TabStrip != null && m_TabStrip.HasMeasureTabItem)
{
MeasureTabItemEventArgs mea = new MeasureTabItemEventArgs(tab, bounds.Size);
m_TabStrip.InvokeMeasureTabItem(mea);
bounds.Size = mea.Size;
}
block.Bounds = bounds;
}
private void RecalcSizeLegacy(Graphics g, Rectangle dispRect)
{
int iMaxWidth=dispRect.Width;
int iWidth=0;
int iDisplayed=0;
int firstVisible = -1;
eTextFormat strFormat=eTextFormat.Default;
if(m_Alignment==eTabStripAlignment.Left || m_Alignment==eTabStripAlignment.Right)
iMaxWidth=dispRect.Height;
int iHeight=this.GetTabHeight(g);
m_TabHeight=iHeight;
int x=dispRect.X;
int y=dispRect.Y;
if(m_Alignment==eTabStripAlignment.Top)
{
y=dispRect.Bottom-iHeight;
}
else if(m_Alignment==eTabStripAlignment.Left)
{
x=dispRect.Right-iHeight;
}
if(m_Alignment==eTabStripAlignment.Left || m_Alignment==eTabStripAlignment.Right)
y-=m_ScrollOffset;
else
x-=m_ScrollOffset;
int initalX=x, initalY=y;
bool bMultiLine=false;
if(this.HasNavigationBox)
{
iMaxWidth-=m_TabSystemBox.DefaultWidth;
iMaxWidth-=4;
}
ArrayList linePositions=new ArrayList();
foreach(TabItem tab in m_Tabs)
{
int iItemWidth=4;
if(!tab.Visible)
continue;
if(firstVisible<0)
firstVisible = m_Tabs.IndexOf(tab);
iDisplayed++;
if (m_FixedTabSize.Width == 0)
{
Image tabImage = tab.GetImage();
if (tab.Icon != null)
{
iItemWidth += tab.IconSize.Width;
if (m_Style != eTabStripStyle.OneNote || this.IsThemed)
iItemWidth += 4;
}
else if (tabImage != null)
{
iItemWidth += tabImage.Width;
if (m_Style != eTabStripStyle.OneNote || this.IsThemed)
iItemWidth += 4;
}
if (m_Style == eTabStripStyle.OneNote && !this.IsThemed)
iItemWidth += ((iHeight - 6) * 1);
else if (m_Style == eTabStripStyle.VS2005Document && !this.IsThemed)
iItemWidth += 4;
if (tab.Text != "" && (!m_DisplaySelectedTextOnly || tab == m_SelectedTab))
{
Font font = this.Font;
if (m_SelectedTabFont != null && (tab == m_SelectedTab || m_CloseButtonPosition == eTabCloseButtonPosition.Right && m_CloseButtonOnTabsAlwaysDisplayed))
font = m_SelectedTabFont;
Size textSize = Size.Empty;
if (this.IsVertical)
textSize = TextDrawing.MeasureStringLegacy(g, tab.Text, font, Size.Empty, strFormat);
else
textSize = TextDrawing.MeasureString(g, tab.Text, font, 0, strFormat);
iItemWidth += textSize.Width;
if ((m_Style != eTabStripStyle.OneNote && m_Style != eTabStripStyle.VS2005Document || this.IsThemed) || m_Alignment == eTabStripAlignment.Top || m_Alignment == eTabStripAlignment.Bottom)
iItemWidth += 4; // 2 pixels of padding...
if(this.IsThemed)
iItemWidth+=10;
}
if (m_CloseButtonOnTabs && tab.CloseButtonVisible && m_Style != eTabStripStyle.OneNote)
iItemWidth += m_CloseButtonSize.Width;
}
else
iItemWidth = m_FixedTabSize.Width;
// Multi-line tab support
if(this.IsMultiLine && iWidth+iItemWidth>iMaxWidth && iDisplayed>1)
{
bMultiLine=true;
switch(m_Alignment)
{
case eTabStripAlignment.Left:
case eTabStripAlignment.Right:
{
if(linePositions.Count==0)
linePositions.Add(x);
x+=(iHeight+m_MultiLineSpacing);
y=initalY;
linePositions.Add(x);
break;
}
case eTabStripAlignment.Top:
case eTabStripAlignment.Bottom:
{
if(linePositions.Count==0)
linePositions.Add(y);
y+=(iHeight+m_MultiLineSpacing);
x=initalX;
linePositions.Add(y);
break;
}
}
m_TabHeight+=(iHeight+m_MultiLineSpacing);
iWidth=0;
}
if(m_Alignment==eTabStripAlignment.Left || m_Alignment==eTabStripAlignment.Right)
{
tab._DisplayRectangle=new Rectangle(x,y,iHeight,iItemWidth);
}
else
{
tab._DisplayRectangle=new Rectangle(x,y,iItemWidth,iHeight);
}
if (MeasureTabItem != null)
{
MeasureTabItemEventArgs mea = new MeasureTabItemEventArgs(tab, tab.DisplayRectangle.Size);
MeasureTabItem(this, mea);
tab._DisplayRectangle = new Rectangle(tab._DisplayRectangle.Location, mea.Size);
if (m_Alignment == eTabStripAlignment.Left || m_Alignment == eTabStripAlignment.Right)
iItemWidth = mea.Size.Height;
else
iItemWidth = mea.Size.Width;
}
if(m_Alignment==eTabStripAlignment.Left || m_Alignment==eTabStripAlignment.Right)
y += iItemWidth;
else
x += iItemWidth;
iWidth+=iItemWidth;
}
if(bMultiLine)
{
if(m_Alignment==eTabStripAlignment.Top)
{
int offset=initalY-y;
foreach(TabItem tab in m_Tabs)
tab._DisplayRectangle=new Rectangle(tab.DisplayRectangle.X,tab.DisplayRectangle.Y+offset,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
for(int i=0;i<linePositions.Count;i++)
linePositions[i]=(int)linePositions[i]+offset;
}
else if(m_Alignment==eTabStripAlignment.Left)
{
int offset=initalX-x;
foreach(TabItem tab in m_Tabs)
tab._DisplayRectangle=new Rectangle(tab.DisplayRectangle.X+offset,tab.DisplayRectangle.Y,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
for(int i=0;i<linePositions.Count;i++)
linePositions[i]=(int)linePositions[i]+offset;
}
// Rearrange tabs so line with the selected tab is always at the edge
switch(m_Alignment)
{
case eTabStripAlignment.Left:
{
// Selected tab must be in last line
if(m_SelectedTab.DisplayRectangle.X!=(int)linePositions[linePositions.Count-1])
{
int switchPos=m_SelectedTab.DisplayRectangle.X;
int selectedPos=(int)linePositions[linePositions.Count-1];
foreach(TabItem tab in m_Tabs)
{
if(tab.DisplayRectangle.X==selectedPos)
tab._DisplayRectangle=new Rectangle(switchPos,tab.DisplayRectangle.Y,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
else if(tab.DisplayRectangle.X==switchPos)
tab._DisplayRectangle=new Rectangle(selectedPos,tab.DisplayRectangle.Y,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
}
}
break;
}
case eTabStripAlignment.Right:
{
// Selected tab must be in last line
if(m_SelectedTab.DisplayRectangle.X!=(int)linePositions[0])
{
int switchPos=m_SelectedTab.DisplayRectangle.X;
int selectedPos=(int)linePositions[0];
foreach(TabItem tab in m_Tabs)
{
if(tab.DisplayRectangle.X==selectedPos)
tab._DisplayRectangle=new Rectangle(switchPos,tab.DisplayRectangle.Y,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
else if(tab.DisplayRectangle.X==switchPos)
tab._DisplayRectangle=new Rectangle(selectedPos,tab.DisplayRectangle.Y,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
}
}
break;
}
case eTabStripAlignment.Top:
{
// Selected tab must be in last line
if(m_SelectedTab.DisplayRectangle.Y!=(int)linePositions[linePositions.Count-1])
{
int switchPos=m_SelectedTab.DisplayRectangle.Y;
int selectedPos=(int)linePositions[linePositions.Count-1];
foreach(TabItem tab in m_Tabs)
{
if(tab.DisplayRectangle.Y==selectedPos)
tab._DisplayRectangle=new Rectangle(tab.DisplayRectangle.X,switchPos,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
else if(tab.DisplayRectangle.Y==switchPos)
tab._DisplayRectangle=new Rectangle(tab.DisplayRectangle.X,selectedPos,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
}
}
break;
}
case eTabStripAlignment.Bottom:
{
// Selected tab must be in first line
if(m_SelectedTab.DisplayRectangle.Y!=(int)linePositions[0])
{
int switchPos=m_SelectedTab.DisplayRectangle.Y;
int selectedPos=(int)linePositions[0];
foreach(TabItem tab in m_Tabs)
{
if(tab.DisplayRectangle.Y==selectedPos)
tab._DisplayRectangle=new Rectangle(tab.DisplayRectangle.X,switchPos,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
else if(tab.DisplayRectangle.Y==switchPos)
tab._DisplayRectangle=new Rectangle(tab.DisplayRectangle.X,selectedPos,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
}
}
break;
}
}
}
if(this.HasNavigationBox)
{
if(m_ScrollOffset!=0)
m_TabSystemBox.BackEnabled=true;
else
m_TabSystemBox.BackEnabled=false;
if(iWidth-m_ScrollOffset>iMaxWidth)
m_TabSystemBox.ForwardEnabled=true;
else
m_TabSystemBox.ForwardEnabled=false;
if(m_AutoHideSystemBox && !this.IsMultiLine)
{
if(iWidth>iMaxWidth)
m_TabSystemBox.Visible=true;
else
m_TabSystemBox.Visible=false;
}
else
m_TabSystemBox.Visible=true;
Rectangle rSysBox=Rectangle.Empty;
switch(m_Alignment)
{
case eTabStripAlignment.Left:
{
rSysBox=new Rectangle((firstVisible<0?dispRect.X:m_Tabs[firstVisible].DisplayRectangle.X),this.ClientRectangle.Bottom-m_TabSystemBox.DefaultWidth-3,(firstVisible<0?dispRect.Width:m_Tabs[firstVisible].DisplayRectangle.Width),m_TabSystemBox.DefaultWidth);
if(m_Style==eTabStripStyle.VS2005 && !this.IsThemed) rSysBox.X--;
break;
}
case eTabStripAlignment.Right:
{
rSysBox=new Rectangle(dispRect.X,this.ClientRectangle.Bottom-m_TabSystemBox.DefaultWidth-3,(firstVisible<0?dispRect.Width:m_Tabs[firstVisible].DisplayRectangle.Width),m_TabSystemBox.DefaultWidth);
if(m_Style==eTabStripStyle.VS2005 && !this.IsThemed) rSysBox.X++;
break;
}
case eTabStripAlignment.Top:
{
if(this.IsRightToLeft)
rSysBox = new Rectangle(this.ClientRectangle.Left, (firstVisible<0 ? dispRect.Y : m_Tabs[firstVisible].DisplayRectangle.Y), m_TabSystemBox.DefaultWidth, (firstVisible<0 ? dispRect.Height : m_Tabs[firstVisible].DisplayRectangle.Height));
else
rSysBox=new Rectangle(this.ClientRectangle.Right-m_TabSystemBox.DefaultWidth-3,(firstVisible<0?dispRect.Y:m_Tabs[firstVisible].DisplayRectangle.Y),m_TabSystemBox.DefaultWidth,(firstVisible<0?dispRect.Height:m_Tabs[firstVisible].DisplayRectangle.Height));
if(m_Style==eTabStripStyle.VS2005 && !this.IsThemed) rSysBox.Y--;
break;
}
default:
{
if (this.IsRightToLeft)
rSysBox = new Rectangle(this.ClientRectangle.Left, dispRect.Y, m_TabSystemBox.DefaultWidth + 2, (firstVisible<0 ? dispRect.Height : m_Tabs[firstVisible].DisplayRectangle.Height));
else
rSysBox=new Rectangle(this.ClientRectangle.Right-m_TabSystemBox.DefaultWidth-2,dispRect.Y,m_TabSystemBox.DefaultWidth+2,(firstVisible<0?dispRect.Height:m_Tabs[firstVisible].DisplayRectangle.Height));
if(m_Style==eTabStripStyle.VS2005 && !this.IsThemed) rSysBox.Y++;
break;
}
}
m_TabSystemBox.DisplayRectangle=rSysBox;
}
if(iWidth>iMaxWidth && m_TabLayoutType==eTabLayoutType.FitContainer && !this.IsMultiLine)
{
if(iDisplayed>0)
{
if(m_Alignment==eTabStripAlignment.Left || m_Alignment==eTabStripAlignment.Right)
{
x=dispRect.X;
y=dispRect.Y;
if(m_Alignment==eTabStripAlignment.Left)
x=dispRect.Right-iHeight;
int iItemWidth=iMaxWidth/iDisplayed;
int iOverageCount=0;
foreach(TabItem tab in m_Tabs)
{
if(!tab.Visible)
continue;
if(tab.DisplayRectangle.Height>iItemWidth)
iOverageCount++;
else
{
iMaxWidth-=tab.DisplayRectangle.Height;
iWidth-=tab.DisplayRectangle.Height;
}
}
//int iDiff=(iWidth-iMaxWidth)/iOverageCount;
float fDiff=(float)iMaxWidth/(float)iWidth;
foreach(TabItem tab in m_Tabs)
{
if(!tab.Visible)
continue;
if(tab.DisplayRectangle.Height>iItemWidth)
{
if(iOverageCount==iDisplayed)
tab._DisplayRectangle=new Rectangle(x,y,tab.DisplayRectangle.Width,iItemWidth);
else
tab._DisplayRectangle=new Rectangle(x,y,tab.DisplayRectangle.Width,(int)(tab.DisplayRectangle.Height*fDiff));
}
else
tab._DisplayRectangle=new Rectangle(x,y,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
y+=tab.DisplayRectangle.Height;
}
}
else
{
x=dispRect.X;
int iItemWidth=iMaxWidth/iDisplayed;
int iOverageCount=0;
foreach(TabItem tab in m_Tabs)
{
if(!tab.Visible)
continue;
if(tab.DisplayRectangle.Width>iItemWidth)
iOverageCount++;
else
{
iMaxWidth-=tab.DisplayRectangle.Width;
iWidth-=tab.DisplayRectangle.Width;
}
}
//int iDiff=(iWidth-iMaxWidth)/iOverageCount;
float fDiff=(float)iMaxWidth/(float)iWidth;
foreach(TabItem tab in m_Tabs)
{
if(!tab.Visible)
continue;
if(tab.DisplayRectangle.Width>iItemWidth)
{
if(iOverageCount==iDisplayed)
tab._DisplayRectangle=new Rectangle(x,y,iItemWidth,tab.DisplayRectangle.Height);
else
tab._DisplayRectangle=new Rectangle(x,y,(int)(tab.DisplayRectangle.Width*fDiff),tab.DisplayRectangle.Height);
}
else
tab._DisplayRectangle=new Rectangle(x,y,tab.DisplayRectangle.Width,tab.DisplayRectangle.Height);
x+=tab.DisplayRectangle.Width;
}
}
}
}
else if (this.IsRightToLeft && m_TabLayoutType != eTabLayoutType.FitContainer &&
(m_Alignment == eTabStripAlignment.Top || m_Alignment == eTabStripAlignment.Bottom))
{
if (iWidth > iMaxWidth)
{
for (int i = m_Tabs.Count - 1; i >= 0; i--)
{
if (m_Tabs[i].Visible)
{
x = m_Tabs[i].DisplayRectangle.Right;
break;
}
}
if (m_TabSystemBox.Visible)
x += m_TabSystemBox.DisplayRectangle.Right;
}
else
x = dispRect.Right;
foreach (TabItem tab in m_Tabs)
{
if (tab.Visible)
{
x -= tab.DisplayRectangle.Width;
tab._DisplayRectangle = new Rectangle(x, tab.DisplayRectangle.Y, tab.DisplayRectangle.Width, tab.DisplayRectangle.Height);
}
}
}
}