private void HandleStyle(string token, StyleInfo model)
{
StyleInfo si = model.Clone() as StyleInfo; // always push a StyleInfo
_StyleStack.Push(si); // since they will always be popped
Hashtable ht = ParseHtmlCmd(token);
string style = (string)ht["style"];
HandleStyleString(style, si);
return;
}
private void BuildAnchor(string token, StyleInfo oldsi, PageText model)
{
StyleInfo si = oldsi.Clone() as StyleInfo; // always push a StyleInfo
_StyleStack.Push(si); // since they will always be popped
Hashtable ht = ParseHtmlCmd(token);
string href = (string)ht["href"];
if (href == null || href.Length < 1)
{
return;
}
model.HyperLink = model.Tooltip = href;
si.TextDecoration = TextDecorationEnum.Underline;
si.Color = Color.Blue;
}
private void HandleFont(string token, StyleInfo model)
{
StyleInfo si = model.Clone() as StyleInfo; // always push a StyleInfo
_StyleStack.Push(si); // since they will always be popped
PageTextHtmlCmdLexer hc = new PageTextHtmlCmdLexer(token.Substring(5));
Hashtable ht = hc.Lex();
string style = (string)ht["style"];
HandleStyleString(style, si);
string color = (string)ht["color"];
if (color != null && color.Length > 0)
{
si.Color = XmlUtil.ColorFromHtml(color, si.Color);
}
string size = (string)ht["size"];
if (size != null && size.Length > 0)
{
HandleStyleFontSize(si, size);
}
string face = (string)ht["face"];
if (face != null && face.Length > 0)
{
si.FontFamily = face;
}
return;
}
private void BuildPrivate(Graphics g)
{
PageText model = new PageText("");
model.AllowSelect = false;
model.Page = this.Page;
model.HyperLink = null;
model.Tooltip = null;
int fontSizeModel = 3;
if (_items != null) // this has already been built
{
return;
}
_items = new List <PageItem>();
_StyleStack = new Stack();
// The first item is always a text box with the border and background attributes
PageText pt = new PageText("");
pt.AllowSelect = true; // This item represents HTML item for selection in RdlViewer
pt.Page = this.Page;
pt.HtmlParent = this;
pt.X = this.X;
pt.Y = this.Y;
pt.H = this.H;
pt.W = this.W;
pt.CanGrow = false;
pt.SI = this.SI.Clone() as StyleInfo;
pt.SI.PaddingBottom = pt.SI.PaddingLeft = pt.SI.PaddingRight = pt.SI.PaddingTop = 0;
pt.SI.TextAlign = TextAlignEnum.Left;
_items.Add(pt);
// Now we create multiple items that represent what is in the box
PageTextHtmlLexer hl = new PageTextHtmlLexer(this.Text);
List <string> tokens = hl.Lex();
float textWidth = this.W - pt.SI.PaddingLeft - pt.SI.PaddingRight;
// Now set the default style for the rest of the members
StyleInfo si = this.SI.Clone() as StyleInfo;
si.BStyleBottom = si.BStyleLeft = si.BStyleRight = si.BStyleTop = BorderStyleEnum.None;
pt.SI.TextAlign = TextAlignEnum.Left;
pt.SI.VerticalAlign = VerticalAlignEnum.Top;
si.BackgroundColor = Color.Empty;
si.BackgroundGradientType = BackgroundGradientTypeEnum.None;
si.BackgroundImage = null;
bool bFirstInLine = true;
StringBuilder sb = new StringBuilder(); // this will hold the accumulating line
float lineXPos = 0;
float xPos = 0;
float yPos = 0;
float maxLineHeight = 0;
float maxDescent = 0;
float descent; // working value for descent
SizeF ms;
bool bWhiteSpace = false;
List <PageItem> lineItems = new List <PageItem>();
foreach (string token in tokens)
{
if (token[0] == PageTextHtmlLexer.HTMLCMD) // indicates an HTML command
{
// we need to create a PageText since the styleinfo is changing
if (sb.Length != 0)
{
pt = new PageText(sb.ToString());
pt.AllowSelect = false;
pt.Page = this.Page;
pt.HtmlParent = this;
pt.HyperLink = model.HyperLink;
pt.Tooltip = model.Tooltip;
pt.NoClip = true;
sb = new StringBuilder();
pt.X = this.X + lineXPos;
pt.Y = this.Y + yPos;
pt.CanGrow = false;
pt.SI = CurrentStyle(si).Clone() as StyleInfo;
_items.Add(pt);
lineItems.Add(pt);
ms = this.MeasureString(pt.Text, pt.SI, g, out descent);
maxDescent = Math.Max(maxDescent, descent);
pt.W = ms.Width;
pt.H = ms.Height;
pt.Descent = descent;
maxLineHeight = Math.Max(maxLineHeight, ms.Height);
lineXPos = xPos;
}
// Now reset the styleinfo
StyleInfo cs = CurrentStyle(si);
string ltoken = token.Substring(1, Math.Min(token.Length - 1, 10)).ToLower();
if (ltoken == "<b>" || ltoken == "<strong>")
{
cs.FontWeight = FontWeightEnum.Bold;
}
else if (ltoken == "</b>" || ltoken == "</strong>")
{
cs.FontWeight = FontWeightEnum.Normal;
}
else if (ltoken == "<i>" || ltoken == "<cite>" || ltoken == "<var>" || ltoken == "<em>")
{
cs.FontStyle = FontStyleEnum.Italic;
}
else if (ltoken == "</i>" || ltoken == "</cite>" || ltoken == "</var>" || ltoken == "</em>")
{
cs.FontStyle = FontStyleEnum.Normal;
}
else if (ltoken == "<code>" || ltoken == "<samp>")
{
cs.FontFamily = "Courier New";
}
else if (ltoken == "</code>" || ltoken == "</samp>")
{
cs.FontFamily = this.SI.FontFamily;
}
else if (ltoken == "<kbd>")
{
cs.FontFamily = "Courier New";
cs.FontWeight = FontWeightEnum.Bold;
}
else if (ltoken == "</kdd>")
{
cs.FontFamily = this.SI.FontFamily;
cs.FontWeight = FontWeightEnum.Normal;
}
else if (ltoken == "<big>")
{ // big makes it bigger by 20% for each time over the baseline of 3
fontSizeModel++;
float inc = 1;
for (int i = 3; i < fontSizeModel; i++)
{
inc += .2f;
}
float h = this.SI.FontSize * inc;
cs.FontSize = h;
}
else if (ltoken == "</big>")
{ // undoes the effect of big
fontSizeModel--;
float inc = 1;
for (int i = 3; i < fontSizeModel; i++)
{
inc += .2f;
}
float h = this.SI.FontSize / inc;
cs.FontSize = h;
}
else if (ltoken == "<small>")
{ // small makes it smaller by 20% for each time under the baseline of 3
fontSizeModel--;
float inc = 1;
for (int i = 3; i > fontSizeModel; i--)
{
inc += .2f;
}
float h = this.SI.FontSize / inc;
cs.FontSize = h;
}
else if (ltoken == "</small>")
{ // undoes the effect of small
fontSizeModel++;
float inc = 1;
for (int i = 3; i > fontSizeModel; i--)
{
inc += .2f;
}
float h = this.SI.FontSize * inc;
cs.FontSize = h;
}
else if (ltoken.StartsWith("<br"))
{
yPos += maxLineHeight;
NormalizeLineHeight(lineItems, maxLineHeight, maxDescent);
maxLineHeight = xPos = lineXPos = maxDescent = 0;
bFirstInLine = true;
bWhiteSpace = false;
}
else if (ltoken.StartsWith("<hr"))
{ // Add a line
// Process existing line if any
yPos += maxLineHeight;
NormalizeLineHeight(lineItems, maxLineHeight, maxDescent);
maxLineHeight = xPos = lineXPos = maxDescent = 0;
bFirstInLine = true;
bWhiteSpace = false;
PageLine pl = new PageLine();
pl.AllowSelect = false;
pl.Page = this.Page;
const int horzLineHeight = 10;
pl.SI = cs.Clone() as StyleInfo;
pl.SI.BStyleLeft = BorderStyleEnum.Ridge;
pl.Y = pl.Y2 = this.Y + yPos + horzLineHeight / 2;
pl.X = this.X;
pl.X2 = pl.X + this.W;
_items.Add(pl);
yPos += horzLineHeight; // skip past horizontal line
}
else if (ltoken.StartsWith("<p"))
{
yPos += maxLineHeight * 2;
NormalizeLineHeight(lineItems, maxLineHeight, maxDescent);
maxLineHeight = xPos = lineXPos = maxDescent = 0;
bFirstInLine = true;
bWhiteSpace = false;
}
else if (ltoken.StartsWith("<a"))
{
BuildAnchor(token.Substring(1), cs, model);
}
else if (ltoken.StartsWith("<img"))
{
PageImage pimg = BuildImage(g, token.Substring(1), cs, model);
if (pimg != null) // We got an image; add to process list
{
pimg.Y = this.Y + yPos;
pimg.X = this.X;
_items.Add(pimg);
yPos += pimg.H; // Increment y position
maxLineHeight = xPos = lineXPos = maxDescent = 0;
bFirstInLine = true;
bWhiteSpace = false;
}
}
else if (ltoken == "</a>")
{
model.HyperLink = model.Tooltip = null;
PopStyle();
}
else if (ltoken.StartsWith("<span"))
{
HandleStyle(token.Substring(1), si);
}
else if (ltoken == "</span>")
{ // we really should match span and font but it shouldn't matter very often?
PopStyle();
}
else if (ltoken.StartsWith("<font"))
{
HandleFont(token.Substring(1), si);
}
else if (ltoken == "</font>")
{ // we really should match span and font but it shouldn't matter very often?
PopStyle();
}
continue;
}
if (token == PageTextHtmlLexer.WHITESPACE)
{
if (!bFirstInLine)
{
bWhiteSpace = true;
}
continue;
}
if (token != PageTextHtmlLexer.EOF)
{
string ntoken;
if (token == PageTextHtmlLexer.NBSP.ToString())
{
ntoken = bWhiteSpace ? " " : " ";
}
else
{
ntoken = bWhiteSpace ? " " + token : token;
}
ntoken = ntoken.Replace(PageTextHtmlLexer.NBSP, ' ');
bWhiteSpace = false; // can only use whitespace once
ms = this.MeasureString(ntoken, CurrentStyle(si), g, out descent);
if (xPos + ms.Width < textWidth)
{
bFirstInLine = false;
sb.Append(ntoken);
maxDescent = Math.Max(maxDescent, descent);
maxLineHeight = Math.Max(maxLineHeight, ms.Height);
xPos += ms.Width;
continue;
}
}
else if (sb.Length == 0) // EOF and no previous string means we're done
{
continue;
}
pt = new PageText(sb.ToString());
pt.AllowSelect = false;
pt.Page = this.Page;
pt.HtmlParent = this;
pt.NoClip = true;
pt.HyperLink = model.HyperLink;
pt.Tooltip = model.Tooltip;
sb = new StringBuilder();
sb.Append(token.Replace(PageTextHtmlLexer.NBSP, ' '));
pt.SI = CurrentStyle(si).Clone() as StyleInfo;
ms = this.MeasureString(pt.Text, pt.SI, g, out descent);
pt.X = this.X + lineXPos;
pt.Y = this.Y + yPos;
pt.H = ms.Height;
pt.W = ms.Width;
pt.Descent = descent;
pt.CanGrow = false;
_items.Add(pt);
lineItems.Add(pt);
maxDescent = Math.Max(maxDescent, descent);
maxLineHeight = Math.Max(maxLineHeight, ms.Height);
yPos += maxLineHeight; // Increment y position
NormalizeLineHeight(lineItems, maxLineHeight, maxDescent);
lineXPos = maxLineHeight = maxDescent = 0; // start line height over
// Now set the xPos just after the current token
ms = this.MeasureString(token, CurrentStyle(si), g, out descent);
xPos = ms.Width;
}
_TotalHeight = yPos; // set the calculated height of the result
_StyleStack = null;
return;
}
private void HandleStyle(string token, StyleInfo model)
{
StyleInfo si= model.Clone() as StyleInfo; // always push a StyleInfo
_StyleStack.Push(si); // since they will always be popped
Hashtable ht = ParseHtmlCmd(token);
string style = (string) ht["style"];
HandleStyleString(style, si);
return;
}
private void HandleFont(string token, StyleInfo model)
{
StyleInfo si = model.Clone() as StyleInfo; // always push a StyleInfo
_StyleStack.Push(si); // since they will always be popped
PageTextHtmlCmdLexer hc = new PageTextHtmlCmdLexer(token.Substring(5));
Hashtable ht = hc.Lex();
string style = (string)ht["style"];
HandleStyleString(style, si);
string color = (string)ht["color"];
if (color != null && color.Length > 0)
si.Color = XmlUtil.ColorFromHtml(color, si.Color);
string size = (string)ht["size"];
if (size != null && size.Length > 0)
HandleStyleFontSize(si, size);
string face = (string)ht["face"];
if (face != null && face.Length > 0)
si.FontFamily = face;
return;
}
private void BuildAnchor(string token, StyleInfo oldsi, PageText model)
{
StyleInfo si= oldsi.Clone() as StyleInfo; // always push a StyleInfo
_StyleStack.Push(si); // since they will always be popped
Hashtable ht = ParseHtmlCmd(token);
string href = (string) ht["href"];
if (href == null || href.Length < 1)
return;
model.HyperLink = model.Tooltip = href;
si.TextDecoration = TextDecorationEnum.Underline;
si.Color = Color.Blue;
}
private void HandleStyle(string token, StyleInfo model)
{
StyleInfo si= model.Clone() as StyleInfo; // always push a StyleInfo
_StyleStack.Push(si); // since they will always be popped
Hashtable ht = ParseHtmlCmd(token);
string style = (string) ht["style"];
if (style == null || style.Length < 1)
return;
string[] styleList = style.Split(new char[] {';'});
foreach (string item in styleList)
{
string[] val = item.Split(new char[] {':'});
if (val.Length != 2)
continue; // must be illegal syntax
string tval = val[1].Trim();
switch (val[0].ToLower().Trim())
{
case "background":
case "background-color":
si.BackgroundColor = XmlUtil.ColorFromHtml(tval, si.Color);
break;
case "color":
si.Color = XmlUtil.ColorFromHtml(tval, si.Color);
break;
case "font-family":
si.FontFamily = tval;
break;
case "font-size":
HandleStyleFontSize(si, tval);
break;
case "font-style":
if (tval == "italic")
si.FontStyle = FontStyleEnum.Italic;
break;
case "font-weight":
HandleStyleFontWeight(si, tval);
break;
}
}
return;
}
