private void UpdateCachedPages()
{
Canvas canvas = new Canvas();
float posX = PADDING;
float posY = m_Text.Font.Leading / 2.0f;
for (int i = 0; i < m_CachedPages.Count; i++)
{
CachedPage prevPage = m_CachedPages[i];
int imageWidth = prevPage.Bitmap.PixelWidth;
int imageHeight = prevPage.Bitmap.PixelHeight;
int frameWidth = imageWidth - (PADDING * 2);
prevPage.Bitmap = null;
WriteableBitmap bmp = new WriteableBitmap(imageWidth, imageHeight);
m_Text.ShowString(RenderGlyph, frameWidth, posX, posY, prevPage.StartIndex, m_LinesInPage, bmp);
prevPage.Bitmap = bmp;
}
m_Drawn = true;
}
private int GenerateCachedPages(double width)
{
ClearCachedPages();
float lineHeight = m_Text.Font.Leading;
float posX = PADDING;
float posY = lineHeight / 2.0f;
float scale = Windows.Graphics.Display.DisplayProperties.LogicalDpi / 96.0f;
int imageWidth = (int)(width - Padding.Right - Padding.Left);
int imageHeight = GetMaxAllowedPixelsInAPage() / imageWidth;
float frameWidth = imageWidth - (PADDING * 2);
m_LinesInPage = (int)Math.Floor((imageHeight - (lineHeight)) / (lineHeight));
float pageHeight = lineHeight * m_LinesInPage;
int countLines = 0;
int totalLines = 0;
int index = 0;
int prevIndex = 0;
for (int i = 0; index > -1; i++)
{
prevIndex = index;
countLines = m_LinesInPage;
index = m_Text.GetNextLineCharIndex(frameWidth, index, countLines);
if (index < 0)
{
countLines = -index - 1;
}
imageHeight = (int)(lineHeight * (countLines + 1));
WriteableBitmap bmp = new WriteableBitmap((int)(imageWidth * scale), (int)(imageHeight * scale));
m_Text.ShowString(RenderGlyph, frameWidth, posX, posY, prevIndex, countLines, bmp);
CachedPage page = new CachedPage(prevIndex, bmp, scale);
m_CachedPages.Add(page);
Image bmpView = page.BitmapView;
bmpView.Margin = new Thickness(Padding.Left, Padding.Top + ((i * pageHeight) - posY), Padding.Right, Padding.Bottom);
m_Grid.Children.Add(bmpView);
totalLines += countLines;
}
m_Drawn = true;
m_MeasuredHeight = (int)Math.Round((totalLines * lineHeight) + Padding.Top + Padding.Bottom);
return(totalLines);
}
private int CreateCachedPages(int width)
{
ClearCachedPages();
float lineHeight = this.Font.GetLeading();
m_PageHeight = CalculatePageHeight(width);
m_LinesInPage = (int)Math.Floor((m_PageHeight - lineHeight) / lineHeight);
int totalLines = 0;
int index = 0;
while (index > -1)
{
int prevIndex = index;
index = m_Text.GetCharIndexAfterLines(index, m_LinesInPage);
int measuredLines;
int pageHeight;
if (index < 0)
{
measuredLines = -index;
pageHeight = (int)(lineHeight * (measuredLines + 1));
}
else
{
measuredLines = m_LinesInPage;
pageHeight = m_PageHeight;
}
WriteableBitmap bmp = new WriteableBitmap(width, pageHeight);
m_Text.RenderText(RenderGlyph, prevIndex, m_LinesInPage, 0, (int)lineHeight, bmp);
CachedPage page = new CachedPage(prevIndex, bmp);
m_CachedPages.Add(page);
totalLines += measuredLines;
}
return(totalLines);
}
private int GenerateCachedPages(double width)
{
ClearCachedPages();
float lineHeight = m_Text.Font.Leading;
float posX = PADDING;
float posY = lineHeight / 2.0f;
float scale = Windows.Graphics.Display.DisplayProperties.LogicalDpi / 96.0f;
int imageWidth = (int)(width - Padding.Right - Padding.Left);
int imageHeight = GetMaxAllowedPixelsInAPage() / imageWidth;
float frameWidth = imageWidth - (PADDING * 2);
m_LinesInPage = (int)Math.Floor((imageHeight - (lineHeight)) / (lineHeight));
float pageHeight = lineHeight * m_LinesInPage;
int countLines = 0;
int totalLines = 0;
int index = 0;
int prevIndex = 0;
for (int i = 0; index > -1; i++)
{
prevIndex = index;
countLines = m_LinesInPage;
index = m_Text.GetNextLineCharIndex(frameWidth, index, countLines);
if (index < 0)
countLines = -index - 1;
imageHeight = (int)(lineHeight * (countLines + 1));
WriteableBitmap bmp = new WriteableBitmap((int)(imageWidth * scale), (int)(imageHeight * scale));
m_Text.ShowString(RenderGlyph, frameWidth, posX, posY, prevIndex, countLines, bmp);
CachedPage page = new CachedPage(prevIndex, bmp, scale);
m_CachedPages.Add(page);
Image bmpView = page.BitmapView;
bmpView.Margin = new Thickness(Padding.Left, Padding.Top + ((i * pageHeight) - posY), Padding.Right, Padding.Bottom);
m_Grid.Children.Add(bmpView);
totalLines += countLines;
}
m_Drawn = true;
m_MeasuredHeight = (int)Math.Round((totalLines * lineHeight) + Padding.Top + Padding.Bottom);
return totalLines;
}
private int CreateCachedPages(int width)
{
ClearCachedPages();
float lineHeight = this.Font.GetLeading();
m_PageHeight = CalculatePageHeight(width);
m_LinesInPage = (int)Math.Floor((m_PageHeight - lineHeight) / lineHeight);
int totalLines = 0;
int index = 0;
while (index > -1)
{
int prevIndex = index;
index = m_Text.GetCharIndexAfterLines(index, m_LinesInPage);
int measuredLines;
int pageHeight;
if (index < 0)
{
measuredLines = -index;
pageHeight = (int)(lineHeight * (measuredLines + 1));
}
else
{
measuredLines = m_LinesInPage;
pageHeight = m_PageHeight;
}
WriteableBitmap bmp = new WriteableBitmap(width, pageHeight);
m_Text.RenderText(RenderGlyph, prevIndex, m_LinesInPage, 0, (int)lineHeight, bmp);
CachedPage page = new CachedPage(prevIndex, bmp);
m_CachedPages.Add(page);
totalLines += measuredLines;
}
return totalLines;
}