protected override void RegionChanged()
{
base.RegionChanged();
Themes.IPartRenderer renderer = BaseApplication.Theme.PartRenderer;
int minDim = (Region.Width < Region.Height) ? Region.Width : Region.Height;
int btnWidth = (int)(minDim * renderer.ComboButtonSizePercent);
Padding pd = renderer.ComboButtonPadding;
m_Button.Region = new Rectangle(Region.Right - btnWidth - pd.Horizontal,
Region.Top + pd.Top,
btnWidth,
Region.Height - pd.Vertical);
}
//------------------------------------------------------------------------------------------------
#region Layout Elements
/// <summary>
/// Perfoms layout of all elements a control(host) consists of
/// </summary>
protected virtual void LayoutElements()
{
Themes.IPartRenderer renderer = BaseApplication.Theme.PartRenderer;
int fh = FontHeight;
bool symbol = Required || IsReadonly;
Rectangle captionRegion = new Rectangle();
Rectangle dataEntryRegion = new Rectangle();
switch (m_CaptionPlacement)
{
case CaptionPlacement.Left:
{
captionRegion = new Rectangle(
Padding.Left,
(Height / 2) - (fh / 2),
m_CaptionHIndent - m_ElementHSpacing,
fh
);
dataEntryRegion = new Rectangle(
Padding.Left + m_CaptionHIndent,
Padding.Top,
Width - m_CaptionHIndent - Padding.Horizontal,
GetDataEntryElementHeight());
break;
}
case CaptionPlacement.Right:
{
captionRegion = new Rectangle(
Width - Padding.Right - m_CaptionHIndent + m_ElementHSpacing,
(Height / 2) - (fh / 2),
m_CaptionHIndent - m_ElementHSpacing,
fh
);
dataEntryRegion = new Rectangle(
Padding.Left,
Padding.Top,
Width - m_CaptionHIndent - Padding.Horizontal,
GetDataEntryElementHeight());
break;
}
case CaptionPlacement.Bottom:
{
captionRegion = new Rectangle(
Padding.Left,
Height - Padding.Bottom - fh,
Width - Padding.Horizontal,
fh
);
dataEntryRegion = new Rectangle(
Padding.Left,
Padding.Top,
Width - Padding.Horizontal,
GetDataEntryElementHeight());
break;
}
default: /* and Top*/
{
captionRegion = new Rectangle(
Padding.Left,
Padding.Top,
Width - Padding.Horizontal,
fh
);
dataEntryRegion = new Rectangle(
Padding.Left,
Padding.Top + fh + m_ElementVSpacing,
Width - Padding.Horizontal,
GetDataEntryElementHeight());
break;
}
}
//place caption and symbol
if (symbol)
{
int symW = 6;
int symH = 6;
int symX;
int symY = (captionRegion.Top + captionRegion.Height / 2) - (symH / 2);
if (m_CaptionAlignment == StringAlignment.Far)
{
symX = captionRegion.Right - symW;
captionRegion.Width -= symW + m_ElementHSpacing;
}
else
{
symX = captionRegion.Left;
if (m_CaptionAlignment != StringAlignment.Center)
{
int delta = symW + m_ElementVSpacing;
captionRegion.X += delta;
captionRegion.Width -= delta;
}
}
m_SymbolElement.Region = new Rectangle(symX, symY, symW, symH);
m_SymbolElement.Visible = true;
}
else
{
m_SymbolElement.Visible = false;
}
m_CaptionElement.Region = captionRegion;
m_CaptionElement.Alignment = m_CaptionAlignment;
if (m_DataEntryElement != null)
{
if (m_DataEntryElement is CheckBoxElement)
{ //adjust region for checkbox
Point midPoint = new Point(
dataEntryRegion.Left + dataEntryRegion.Width / 2,
dataEntryRegion.Top + dataEntryRegion.Height / 2);
Padding cbm = renderer.CheckBoxMetrics;
dataEntryRegion = new Rectangle(midPoint.X - fh / 2 - cbm.Left,
midPoint.Y - fh / 2 - cbm.Top,
fh + cbm.Right,
fh + cbm.Bottom);
}
if (m_DataEntryElement is RadioGroupElement)
{
RadioGroupElement rgrp = (RadioGroupElement)m_DataEntryElement;
rgrp.BeginUpdate();
rgrp.ButtonVSpacing = m_ElementVSpacing;
rgrp.Padding = new Padding(m_ElementHSpacing, m_ElementVSpacing, m_ElementHSpacing, m_ElementVSpacing);
rgrp.Region = dataEntryRegion;
rgrp.EndUpdate();
if (rgrp.UpdateCount > 0)
{
rgrp.EndUpdate(); //rebuilds RadioGroup
}
}
else
{
m_DataEntryElement.Region = dataEntryRegion;
}
}
if (m_InternalTextBox != null)
{
if (Utils.IsControlDesignerHosted(this))
{
m_InternalTextBox.SetBounds(-1000, -1000, 1, 1); //adornment painter fix
}
else
{
Padding tbm = renderer.FocusedTextBoxMetrics;
Rectangle itbRect = new Rectangle(dataEntryRegion.Left + tbm.Left,
dataEntryRegion.Top + tbm.Top,
dataEntryRegion.Width - tbm.Horizontal,
dataEntryRegion.Height - tbm.Vertical);
if (m_DataEntryElement is ComboBoxElement && m_ComboButtonVisible)
{
itbRect.Width = ((int)renderer.ComboTextBoxWidthPercent * dataEntryRegion.Width) - tbm.Horizontal;
int btnLeft = ((ComboBoxElement)m_DataEntryElement).ButtonRegion.Left - 1;
if ((itbRect.Left + itbRect.Width) > btnLeft)
{
itbRect.Width = btnLeft - itbRect.Left;
}
}
m_InternalTextBox.SetBounds(
itbRect.Left,
itbRect.Top,
itbRect.Width,
itbRect.Height);
}
if (m_LineCount > 1)
{
m_InternalTextBox.ScrollBars = ScrollBars.Vertical;
m_InternalTextBox.WordWrap = true;
}
else
{
m_InternalTextBox.ScrollBars = ScrollBars.None;
m_InternalTextBox.WordWrap = false;
}
m_InternalTextBox.BackColor = renderer.TextBoxBackgroundColor;
} //m_InternalTextBox!=null
} //LayoutElements()
