protected bool RenderText(String text, DrawingContext dc, ViewUtil.ItemFont itemFont, Brush brush, double fontSize, double maxWidth, double maxHeight, double x, double baseline, ref double useHeight, bool nowrap = false)
{
if (x <= 0 || maxWidth <= 0)
{
useHeight = 0;
return(false);
}
double totalHeight = 0;
double fontHeight = fontSize * itemFont.GlyphType.Height;
string[] lineText = text.Replace("\r", "").Split('\n');
foreach (string line in lineText)
{
//高さ確認
if (totalHeight + fontHeight > maxHeight)
{
//これ以上は無理
useHeight = totalHeight;
return(false);
}
// ベースラインの位置の計算
// ビットマップフォントがかすれる問題 とりあえず整数にしておく
Point origin = new Point(Math.Round(x), Math.Round(totalHeight + baseline));
//メイリオみたいに行間のあるフォントと MS P ゴシックみたいな行間のないフォントがあるので
//なんとなく行間を作ってみる。
totalHeight += Math.Max(fontHeight, fontSize + 2);
double totalWidth = 0;
List <ushort> glyphIndexes = new List <ushort>();
List <double> advanceWidths = new List <double>();
for (int n = 0; n < line.Length; n++)
{
// XAML に合わせて、行頭の空白を無視する
if (glyphIndexes.Count == 0 && (line[n] == ' ' || line[n] == '\x3000'))
{
continue;
}
//ushort glyphIndex = glyphType.CharacterToGlyphMap[line[n]];
//double width = glyphType.AdvanceWidths[glyphIndex] * fontSize;
ushort glyphIndex = itemFont.GlyphIndexCache[line[n]];
if (glyphIndex == 0)
{
itemFont.GlyphType.CharacterToGlyphMap.TryGetValue(line[n], out glyphIndex);
itemFont.GlyphIndexCache[line[n]] = glyphIndex;
itemFont.GlyphWidthCache[glyphIndex] = (float)itemFont.GlyphType.AdvanceWidths[glyphIndex];
}
double width = itemFont.GlyphWidthCache[glyphIndex] * fontSize;
if (totalWidth + width > maxWidth)
{
if (nowrap == true)
{
break; //改行しない場合ここで終り
}
if (totalWidth == 0)
{
return(false); //一文字も置けなかった(glyphIndexesなどのCount=0のまま)
}
if (totalHeight + fontHeight > maxHeight)
{
//次の行無理
//glyphIndex = glyphType.CharacterToGlyphMap['…'];
//double widthEllipsis = glyphType.AdvanceWidths[glyphIndex] * fontSize;
glyphIndex = itemFont.GlyphType.CharacterToGlyphMap['…'];
double widthEllipsis = itemFont.GlyphType.AdvanceWidths[glyphIndex] * fontSize;
while (totalWidth - advanceWidths.Last() + widthEllipsis > maxWidth)
{
totalWidth -= advanceWidths.Last();
glyphIndexes.RemoveAt(glyphIndexes.Count - 1);
advanceWidths.RemoveAt(advanceWidths.Count - 1);
}
glyphIndexes[glyphIndexes.Count - 1] = glyphIndex;
advanceWidths[advanceWidths.Count - 1] = widthEllipsis;
GlyphRun glyphRun = new GlyphRun(itemFont.GlyphType, 0, false, fontSize,
glyphIndexes, origin, advanceWidths, null, null, null, null,
null, null);
dc.DrawGlyphRun(brush, glyphRun);
useHeight = totalHeight;
return(false);
}
else
{
//次の行いけるので今までの分出力
GlyphRun glyphRun = new GlyphRun(itemFont.GlyphType, 0, false, fontSize,
glyphIndexes, origin, advanceWidths, null, null, null, null,
null, null);
dc.DrawGlyphRun(brush, glyphRun);
origin = new Point(Math.Round(x), Math.Round(totalHeight + baseline));
totalHeight += Math.Max(fontHeight, fontSize + 2);
totalWidth = 0;
glyphIndexes = new List <ushort>();
advanceWidths = new List <double>();
// XAML に合わせて、行頭の空白を無視する
if (line[n] == ' ' || line[n] == '\x3000')
{
continue;
}
}
}
glyphIndexes.Add(glyphIndex);
advanceWidths.Add(width);
totalWidth += width;
}
if (glyphIndexes.Count > 0)
{
GlyphRun glyphRun = new GlyphRun(itemFont.GlyphType, 0, false, fontSize,
glyphIndexes, origin, advanceWidths, null, null, null, null,
null, null);
dc.DrawGlyphRun(brush, glyphRun);
}
}
useHeight = totalHeight;
return(true);
}
protected bool RenderText(String text, ref List <TextDrawItem> textDrawList, ViewUtil.ItemFont itemFont, double fontSize, double maxWidth, double maxHeight, double x, double baseline, ref double useHeight, Brush fontColor, Matrix m)
{
double totalHeight = 0;
double fontHeight = fontSize * itemFont.GlyphType.Height;
string[] lineText = text.Replace("\r", "").Split('\n');
foreach (string line in lineText)
{
List <ushort> glyphIndexes = new List <ushort>();
List <double> advanceWidths = new List <double>();
//ベースラインの位置
double dpix = x * m.M11;
double dpiy = (totalHeight + baseline) * m.M22;
// ビットマップフォントがかすれる問題 とりあえず整数にしておく
Point origin = new Point(Math.Round(dpix / m.M11), Math.Round(dpiy / m.M22));
//メイリオみたいに行間のあるフォントと MS P ゴシックみたいな行間のないフォントがあるので
//なんとなく行間を作ってみる。
totalHeight += Math.Max(fontHeight, fontSize + 2);
double totalWidth = 0;
for (int n = 0; n < line.Length; n++)
{
// XAML に合わせて、行頭の空白を無視する
if (glyphIndexes.Count == 0 && (line[n] == ' ' || line[n] == '\x3000'))
{
continue;
}
//この辞書検索が負荷の大部分を占めているのでテーブルルックアップする
//(簡単なパフォーマンス計測をした結果、2～10倍くらい速くなったようだ)
//ushort glyphIndex = itemFont.GlyphType.CharacterToGlyphMap[line[n]];
//double width = itemFont.GlyphType.AdvanceWidths[glyphIndex] * fontSize;
ushort glyphIndex = itemFont.GlyphIndexCache[line[n]];
if (glyphIndex == 0)
{
itemFont.GlyphType.CharacterToGlyphMap.TryGetValue(line[n], out glyphIndex);
itemFont.GlyphIndexCache[line[n]] = glyphIndex;
itemFont.GlyphWidthCache[glyphIndex] = (float)itemFont.GlyphType.AdvanceWidths[glyphIndex];
}
double width = itemFont.GlyphWidthCache[glyphIndex] * fontSize;
if (totalWidth + width > maxWidth)
{
if (glyphIndexes.Count > 0)
{
TextDrawItem item = new TextDrawItem();
item.FontColor = fontColor;
item.Text = new GlyphRun(itemFont.GlyphType, 0, false, fontSize,
glyphIndexes, origin, advanceWidths, null, null, null, null,
null, null);
textDrawList.Add(item);
}
if (totalHeight > maxHeight)
{
//次の行無理
useHeight = totalHeight;
return(false);
}
else
{
//次の行いける
dpiy = (totalHeight + baseline) * m.M22;
origin = new Point(Math.Round(dpix / m.M11), Math.Round(dpiy / m.M22));
totalHeight += Math.Max(fontHeight, fontSize + 2);
totalWidth = 0;
glyphIndexes = new List <ushort>();
advanceWidths = new List <double>();
// XAML に合わせて、行頭の空白を無視する
if (line[n] == ' ' || line[n] == '\x3000')
{
continue;
}
}
}
glyphIndexes.Add(glyphIndex);
advanceWidths.Add(width);
totalWidth += width;
}
if (glyphIndexes.Count > 0)
{
TextDrawItem item = new TextDrawItem();
item.FontColor = fontColor;
item.Text = new GlyphRun(itemFont.GlyphType, 0, false, fontSize,
glyphIndexes, origin, advanceWidths, null, null, null, null,
null, null);
textDrawList.Add(item);
}
}
useHeight = Math.Floor(totalHeight);
return(true);
}
