internal LineLayout(font.TextLayout layout,
TextLineIterator lineIter,
float accumulatedHeight)
{
_layout = layout;
_lineIter = lineIter;
_accumulatedHeight = accumulatedHeight;
}
internal LineLayout(font.TextLayout layout,
TextLineIterator lineIter,
float accumulatedHeight) {
_layout = layout;
_lineIter = lineIter;
_accumulatedHeight = accumulatedHeight;
}
SizeF MeasureString (string text, Font font, StringFormat format, float width, float height, int[] statistics) {
if (statistics != null) {
statistics[0] = 0;
statistics[1] = 0;
}
TextLineIterator iter = new TextLineIterator(text, font, NativeObject.getFontRenderContext(), format, width, height);
float mwidth = 0;
int linesFilled = 0;
for (LineLayout layout = iter.NextLine(); layout != null; layout = iter.NextLine()) {
linesFilled ++;
float w = layout.MeasureWidth;
if (w > mwidth)
mwidth = w;
}
if (linesFilled == 0)
return SizeF.Empty;
float mheight = iter.AccumulatedHeight;
if (format != null) {
if (format.IsVertical) {
float temp = mheight;
mheight = mwidth;
mwidth = temp;
}
}
if (!(format != null && format.NoClip)) {
if (mwidth > width)
mwidth = width;
if (mheight > height)
mheight = height;
}
if (statistics != null) {
statistics[0] = linesFilled;
statistics[1] = iter.CharsConsumed;
}
return new SizeF (mwidth / UnitConversion [(int) _pageUnit], mheight / UnitConversion [(int) _pageUnit]);
}
public Region [] MeasureCharacterRanges (string text, Font font, RectangleF layoutRect, StringFormat stringFormat) {
if (stringFormat == null)
throw new ArgumentException("stringFormat");
CharacterRange[] ranges = stringFormat.CharRanges;
if (ranges == null || ranges.Length == 0)
return new Region[0];
GraphicsPath[] pathes = new GraphicsPath[ranges.Length];
for (int i = 0; i < pathes.Length; i++)
pathes[i] = new GraphicsPath();
TextLineIterator iter = new TextLineIterator(text, font, NativeObject.getFontRenderContext(),
stringFormat, layoutRect.Width, layoutRect.Height);
for (LineLayout layout = iter.NextLine(); layout != null; layout = iter.NextLine()) {
for (int i = 0; i < ranges.Length; i++) {
int start = ranges[i].First;
int length = ranges[i].Length;
start -= iter.CharsConsumed;
int limit = start + length;
int layoutStart = iter.CurrentPosition - layout.CharacterCount;
if (start < iter.CurrentPosition && limit > layoutStart) {
float layoutOffset;
if (start > layoutStart)
layoutOffset = iter.GetAdvanceBetween(layoutStart, start);
else {
layoutOffset = 0;
start = layoutStart;
}
float width = (limit < iter.CurrentPosition) ?
iter.GetAdvanceBetween(start, limit) :
layout.Width - layoutOffset;
float height = layout.Ascent + layout.Descent;
float x = layout.NativeX;
float y = layout.NativeY;
if (stringFormat.IsVertical) {
y += layoutOffset;
x -= layout.Descent;
}
else {
x += layoutOffset;
y -= layout.Ascent;
}
if (layout.AccumulatedHeight + height > iter.WrapHeight) {
float diff = iter.WrapHeight - layout.AccumulatedHeight;
if (stringFormat.IsVertical && stringFormat.IsRightToLeft) {
x += diff;
height -= diff;
}
else
height = diff;
}
if (stringFormat.IsVertical)
pathes[i].AddRectangle(x + layoutRect.X, y + layoutRect.Y, height, width);
else
pathes[i].AddRectangle(x + layoutRect.X, y + layoutRect.Y, width, height);
}
}
}
geom.AffineTransform lineAlignT = iter.CalcLineAlignmentTransform();
if (lineAlignT != null) {
for (int i = 0; i < pathes.Length; i++)
pathes[i].NativeObject.transform(lineAlignT);
}
Region[] regions = new Region[ranges.Length];
for (int i = 0; i < regions.Length; i++)
regions[i] = new Region(pathes[i]);
return regions;
}
void DrawString (string s, Font font, Brush brush,
float x, float y, float width, float height,
StringFormat format) {
if (brush == null)
throw new ArgumentNullException("brush");
if (font == null)
throw new ArgumentNullException("font");
if (format != null && format.LineAlignment != StringAlignment.Near) {
SizeF sizeF = MeasureString(s, font, format, width, height, null);
float lineAWidth = width;
float lineAHeight = height;
if (float.IsPositiveInfinity(width))
lineAWidth = lineAHeight = 0;
float wdelta = format.IsVertical ? lineAWidth - sizeF.Width : lineAHeight - sizeF.Height;
float pdelta = format.LineAlignment == StringAlignment.Center ? wdelta/2 : wdelta;
if (format.IsVertical) {
if (!(format.IsRightToLeft && format.LineAlignment == StringAlignment.Far))
x += pdelta;
if (!float.IsPositiveInfinity(width))
width -= wdelta;
}
else {
y += pdelta;
if (!float.IsPositiveInfinity(width))
height -= wdelta;
}
}
awt.Paint oldP = NativeObject.getPaint();
NativeObject.setPaint(brush);
try {
geom.AffineTransform oldT = NativeObject.getTransform();
try {
bool noclip = float.IsPositiveInfinity(width) || (format != null && format.NoClip);
awt.Shape oldClip = null;
if (!noclip) {
oldClip = NativeObject.getClip();
NativeObject.clip(new geom.Rectangle2D.Float(x, y, width, height));
}
try {
TextLineIterator iter = new TextLineIterator(s, font, NativeObject.getFontRenderContext(), format, width, height);
NativeObject.transform(iter.Transform);
for (LineLayout layout = iter.NextLine(); layout != null; layout = iter.NextLine()) {
layout.Draw (NativeObject, x * UnitConversion [(int) PageUnit], y * UnitConversion [(int) PageUnit]);
}
}
finally {
if (!noclip)
NativeObject.setClip(oldClip);
}
}
finally {
NativeObject.setTransform(oldT);
}
}
finally {
NativeObject.setPaint(oldP);
}
}
void AddString (string s, Font font,
float x, float y, float width, float height,
StringFormat format) {
TextLineIterator iter = new TextLineIterator(s, font,
new java.awt.font.FontRenderContext(null, false, false),
format, width, height);
int coordsCount = NativeObject.CoordsCount;
for (LineLayout layout = iter.NextLine(); layout != null; layout = iter.NextLine()) {
NativeObject.append(layout.GetOutline(x, y), false);
}
AffineTransform lineAlignT = iter.CalcLineAlignmentTransform();
if (lineAlignT != null)
NativeObject.transform(lineAlignT, coordsCount, NativeObject.CoordsCount - coordsCount);
}