/// <summary>
/// Calculates pinyin layout.
/// </summary>
private void doAnalyzePinyin(Graphics g)
{
// If already measured, nothing to do
if (pinyinInfo != null)
{
return;
}
// This is how we measure
StringFormat sf = StringFormat.GenericTypographic;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
pinyinInfo = new PinyinInfo();
// Measure each pinyin syllable
bool diacritics = true;
var pcoll = entry.GetPinyinForDisplay(diacritics,
res.PinyinHiliteStart, res.PinyinHiliteLength,
out pinyinInfo.HiliteStart, out pinyinInfo.HiliteLength);
float cx = headInfo.HeadwordRight + (float)padMid;
float ctop = padTop;
for (int i = 0; i != pcoll.Count; ++i)
{
PinyinSyllable ps = pcoll[i];
// New pinyin block
PinyinBlock pb = new PinyinBlock();
// Text: syllable's display text
string text = ps.GetDisplayString(true);
pb.TextPos = textPool.PoolString(text);
// If text is punctuation, glue it to previous syllable
if (text.Length == 1 && CedictFormatter.SticksLeft(text) && i > 0)
{
cx -= pinyinSpaceWidth;
}
// Block's size and relative location
SizeF sz = g.MeasureString(text, getFont(fntPinyinHead), 65535, sf);
pb.Rect = new RectangleF(cx, ctop, sz.Width, sz.Height);
cx += sz.Width + pinyinSpaceWidth;
// Add block
pinyinInfo.Blocks.Add(pb);
}
// Height of whole pinyin area
pinyinInfo.PinyinHeight = pinyinInfo.Blocks[0].Rect.Height;
}
/// <summary>
/// Calculates pinyin layout.
/// </summary>
private void doAnalyzePinyin(Graphics g)
{
// If already measured, nothing to do
if (pinyinInfo != null) return;
// This is how we measure
StringFormat sf = StringFormat.GenericTypographic;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
pinyinInfo = new PinyinInfo();
// Measure each pinyin syllable
bool diacritics = true;
var pcoll = entry.GetPinyinForDisplay(diacritics,
res.PinyinHiliteStart, res.PinyinHiliteLength,
out pinyinInfo.HiliteStart, out pinyinInfo.HiliteLength);
float cx = headInfo.HeadwordRight + (float)padMid;
float ctop = padTop;
for (int i = 0; i != pcoll.Count; ++i)
{
PinyinSyllable ps = pcoll[i];
// New pinyin block
PinyinBlock pb = new PinyinBlock();
// Text: syllable's display text
string text = ps.GetDisplayString(true);
pb.TextPos = textPool.PoolString(text);
// If text is punctuation, glue it to previous syllable
if (text.Length == 1 && CedictFormatter.SticksLeft(text) && i > 0) cx -= pinyinSpaceWidth;
// Block's size and relative location
SizeF sz = g.MeasureString(text, getFont(fntPinyinHead), 65535, sf);
pb.Rect = new RectangleF(cx, ctop, sz.Width, sz.Height);
cx += sz.Width + pinyinSpaceWidth;
// Add block
pinyinInfo.Blocks.Add(pb);
}
// Height of whole pinyin area
pinyinInfo.PinyinHeight = pinyinInfo.Blocks[0].Rect.Height;
}
/// <summary>
/// Paint headword's pinyin, with highlights.
/// </summary>
private void doPaintPinyin(Graphics g, Brush bfont, SolidBrush bhilite, StringFormat sf, Color bgcol)
{
if (pinyinInfo == null || pinyinInfo.Blocks.Count == 0)
{
return;
}
// We do have highlights
if (pinyinInfo.HiliteStart != -1)
{
// We offset highlight vertically for more pleasing aesthetics (lots of empty space at top in text)
float topOfs = pinyinInfo.Blocks[0].Rect.Height / 15.0F; // TO-DO: This will need more work; depends on font size & Scale
// We make highlight exten a bit farther down
float hFactor = 1.1F;
// Needed to make gradient work
g.SmoothingMode = SmoothingMode.None;
float edgeLeft = 0;
float edgeRight = 0;
for (int i = 0; i != pinyinInfo.Blocks.Count; ++i)
{
// Not in highlight now
if (i < pinyinInfo.HiliteStart || i >= pinyinInfo.HiliteStart + pinyinInfo.HiliteLength)
{
continue;
}
// Get block
PinyinBlock pb = pinyinInfo.Blocks[i];
// Where?
PointF loc = pb.Rect.Location;
loc.Y += topOfs;
// Remember edges
if (i == pinyinInfo.HiliteStart)
{
edgeLeft = pb.Rect.Left;
}
if (i + 1 == pinyinInfo.HiliteStart + pinyinInfo.HiliteLength)
{
edgeRight = pb.Rect.Right;
}
// Hilight syllable itself
RectangleF hlr = new RectangleF(loc, pb.Rect.Size);
hlr.Height *= hFactor;
g.FillRectangle(bhilite, hlr);
// For middle and last: hilight space before
if (i > pinyinInfo.HiliteStart)
{
float xprev = pinyinInfo.Blocks[i - 1].Rect.Right;
hlr.X = xprev;
hlr.Width = loc.X - xprev;
g.FillRectangle(bhilite, hlr);
}
}
// Left and right edges: gradient
// Extends one space's width beyond edge
// Reach max color two spaces' width within syllable, OR
// by midpoint, if edgeRight - edgeLeft < 4 spaces
float y = pinyinInfo.Blocks[0].Rect.Top + topOfs;
float w = pinyinSpaceWidth;
if (edgeLeft != 0 && edgeRight != 0)
{
float midPoint = (edgeLeft + edgeRight) / 2.0F;
float whalf = (edgeRight - edgeLeft) / 2.0F;
RectangleF rleft;
if (whalf < 2.0F * w)
{
rleft = new RectangleF(edgeLeft - w, y, w + whalf, pinyinInfo.PinyinHeight * hFactor);
}
else
{
rleft = new RectangleF(edgeLeft - w, y, w * 3.0F, pinyinInfo.PinyinHeight * hFactor);
}
using (LinearGradientBrush lbr = new LinearGradientBrush(rleft, bgcol, Magic.HiliteColor, LinearGradientMode.Horizontal))
{
g.FillRectangle(lbr, rleft);
}
RectangleF rright;
if (whalf < 2.0F * w)
{
rright = new RectangleF(midPoint, y, w + whalf, pinyinInfo.PinyinHeight * hFactor);
}
else
{
rright = new RectangleF(edgeRight - 2.0F * w, y, w * 3.0F, pinyinInfo.PinyinHeight * hFactor);
}
using (LinearGradientBrush lbr = new LinearGradientBrush(rright, Magic.HiliteColor, bgcol, LinearGradientMode.Horizontal))
{
g.FillRectangle(lbr, rright);
}
}
}
// Now, write each syllable - so it goes on top of hilites
foreach (PinyinBlock pb in pinyinInfo.Blocks)
{
PointF loc = pb.Rect.Location;
g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
// Draw string
g.DrawString(textPool.GetString(pb.TextPos), getFont(fntPinyinHead), bfont, loc, sf);
}
}