|
private RequestImage ( ImageBinder binder, |
||
| binder | ImageBinder | |
| requestFrom | ||
| return | void | |
/// <summary>
/// Assigns words its width and height
/// </summary>
/// <param name="g"></param>
public virtual void MeasureRunsSize(LayoutVisitor lay)
{
//measure once !
if ((this._boxCompactFlags & BoxFlags.LAY_RUNSIZE_MEASURE) != 0)
{
return;
}
//--------------------------------
if (this.BackgroundImageBinder != null)
{
//this has background
if (this.BackgroundImageBinder.State == ImageBinderState.Unload)
{
lay.RequestImage(this.BackgroundImageBinder, this);
}
}
//--------------------------------
if (this.RunCount > 0)
{
//find word spacing
float actualWordspacing = this._actualWordSpacing;
RequestFont actualFont = this.ResolvedFont;
float fontHeight = (actualFont.AscentInPixels - actualFont.DescentInPixels + actualFont.LineGapInPixels);
fontHeight += 4;
var tmpRuns = this.Runs;
for (int i = tmpRuns.Count - 1; i >= 0; --i)
{
CssRun run = tmpRuns[i];
run.Height = fontHeight;
//if this is newline then width =0 ***
switch (run.Kind)
{
case CssRunKind.Text:
{
CssTextRun textRun = (CssTextRun)run;
//run.Width = lay.MeasureStringWidth(
// CssBox.UnsafeGetTextBuffer(this),
// textRun.TextStartIndex,
// textRun.TextLength,
// actualFont);
Size ss = lay.MeasureStringSize(CssBox.UnsafeGetTextBuffer(this),
textRun.TextStartIndex,
textRun.TextLength,
actualFont);
run.SetSize(ss.Width, ss.Height);
}
break;
case CssRunKind.SingleSpace:
{
run.Width = actualWordspacing;
}
break;
case CssRunKind.Space:
{
//other space size
run.Width = actualWordspacing * ((CssTextRun)run).TextLength;
}
break;
case CssRunKind.LineBreak:
{
run.Width = 0;
}
break;
}
}
}
this._boxCompactFlags |= BoxFlags.LAY_RUNSIZE_MEASURE;
}
/// <summary>
/// Assigns words its width and height
/// </summary>
/// <param name="g"></param>
public virtual void MeasureRunsSize(LayoutVisitor lay)
{
//measure once !
if ((_boxCompactFlags & BoxFlags.LAY_RUNSIZE_MEASURE) != 0)
{
return;
}
//--------------------------------
if (this.BackgroundImageBinder != null)
{
//this has background
if (this.BackgroundImageBinder.State == BinderState.Unload)
{
lay.RequestImage(this.BackgroundImageBinder, this);
}
}
//--------------------------------
if (this.RunCount > 0)
{
//find word spacing
float actualWordspacing = _actualWordSpacing;
RequestFont actualFont = this.ResolvedFont;
float fontHeight = (actualFont.AscentInPixels - actualFont.DescentInPixels + actualFont.LineGapInPixels);
fontHeight += 4; //TODO: why +4 ????***
List <CssRun> tmpRuns = this.Runs;
for (int i = tmpRuns.Count - 1; i >= 0; --i)
{
CssRun run = tmpRuns[i];
run.Height = fontHeight;
//if this is newline then width =0 ***
switch (run.Kind)
{
case CssRunKind.Text:
{
CssTextRun textRun = (CssTextRun)run;
Size ss = lay.MeasureStringSize(CssBox.UnsafeGetTextBuffer(this),
textRun.TextStartIndex,
textRun.TextLength,
actualFont);
run.SetSize(ss.Width, ss.Height);
}
break;
case CssRunKind.SingleSpace:
{
run.Width = actualWordspacing;
}
break;
case CssRunKind.Space:
{
//other space size
run.Width = actualWordspacing * ((CssTextRun)run).TextLength;
}
break;
case CssRunKind.LineBreak:
{
run.Width = 0;
}
break;
}
}
}
_boxCompactFlags |= BoxFlags.LAY_RUNSIZE_MEASURE;
}
/// <summary>
/// Assigns words its width and height
/// </summary>
/// <param name="g"></param>
public virtual void MeasureRunsSize(LayoutVisitor lay)
{
//measure once !
if ((this._boxCompactFlags & BoxFlags.LAY_RUNSIZE_MEASURE) != 0)
{
return;
}
//--------------------------------
if (this.BackgroundImageBinder != null)
{
//this has background
if (this.BackgroundImageBinder.State == ImageBinderState.Unload)
{
lay.RequestImage(this.BackgroundImageBinder, this);
}
}
//--------------------------------
if (this.RunCount > 0)
{
//find word spacing
float actualWordspacing = this._actualWordSpacing;
Font actualFont = this.ActualFont;
var fontInfo = actualFont.FontInfo;
float fontHeight = fontInfo.LineHeight;
var tmpRuns = this.Runs;
for (int i = tmpRuns.Count - 1; i >= 0; --i)
{
CssRun run = tmpRuns[i];
run.Height = fontHeight;
//if this is newline then width =0 ***
switch (run.Kind)
{
case CssRunKind.Text:
{
CssTextRun textRun = (CssTextRun)run;
run.Width = lay.MeasureStringWidth(
CssBox.UnsafeGetTextBuffer(this),
textRun.TextStartIndex,
textRun.TextLength,
actualFont);
}
break;
case CssRunKind.SingleSpace:
{
run.Width = actualWordspacing;
}
break;
case CssRunKind.Space:
{
//other space size
run.Width = actualWordspacing * ((CssTextRun)run).TextLength;
}
break;
case CssRunKind.LineBreak:
{
run.Width = 0;
}
break;
}
}
}
this._boxCompactFlags |= BoxFlags.LAY_RUNSIZE_MEASURE;
}