void EnsureResources(ICanvasResourceCreatorWithDpi resourceCreator, Size targetSize)
{
if (resourceRealizationSize == targetSize && !needsResourceRecreation)
return;
float canvasWidth = (float)targetSize.Width;
float canvasHeight = (float)targetSize.Height;
sizeDim = Math.Min(canvasWidth, canvasHeight);
if (!defaultFontSizeSet)
{
CurrentFontSize = sizeDim / 1.3f;
CurrentFontSize = Math.Max((float)fontSizeSlider.Minimum, CurrentFontSize);
CurrentFontSize = Math.Min((float)fontSizeSlider.Maximum, CurrentFontSize);
fontSizeSlider.Value = CurrentFontSize;
defaultFontSizeSet = true;
}
if (textLayout != null)
textLayout.Dispose();
textLayout = CreateTextLayout(resourceCreator, canvasWidth, canvasHeight);
if (!UniformStyle)
{
textLayout.SetFontSize(0, 1, CurrentUppercaseFontSize);
textLayout.SetFontFamily(0, 1, uppercaseFontPicker.CurrentFontFamily);
textLayout.SetFontSize(1, 2, CurrentLowercaseFontSize);
textLayout.SetFontFamily(1, 2, lowercaseFontPicker.CurrentFontFamily);
}
needsResourceRecreation = false;
resourceRealizationSize = targetSize;
}
private void ShrinkFontAndAttachCustomBrushData(
CanvasTextLayout textLayout,
int textPosition,
int characterCount,
CustomBrushData.BaselineAdjustmentType baselineAdjustmentType)
{
textLayout.SetFontSize(textPosition, characterCount, (float)CurrentFontSize * fontSizeShrinkAmount);
textLayout.SetCustomBrush(textPosition, characterCount, new CustomBrushData() { BaselineAdjustment = baselineAdjustmentType });
}