private void CreateLinkPieces()
{
if (Text.Length == 0)
{
SetStyle(ControlStyles.Selectable, false);
TabStop = false;
link_area.Start = 0;
link_area.Length = 0;
return;
}
if (Links.Count == 1 && Links[0].Start == 0 && Links[0].Length == -1)
{
Links[0].Length = Text.Length;
}
SortLinks();
// Set the LinkArea values based on first link.
if (Links.Count > 0)
{
link_area.Start = Links[0].Start;
link_area.Length = Links[0].Length;
}
else
{
link_area.Start = 0;
link_area.Length = 0;
}
TabStop = (LinkArea.Length > 0);
SetStyle(ControlStyles.Selectable, TabStop);
/* don't bother doing the rest if our handle hasn't been created */
if (!IsHandleCreated)
{
return;
}
ArrayList pieces_list = new ArrayList();
int current_end = 0;
for (int l = 0; l < sorted_links.Length; l++)
{
int new_link_start = sorted_links[l].Start;
if (new_link_start > current_end)
{
/* create/push a piece
* containing the text between
* the previous/new link */
ArrayList text_pieces = CreatePiecesFromText(current_end, new_link_start - current_end, null);
pieces_list.AddRange(text_pieces);
}
/* now create a group of pieces for
* the new link (split up by \n's) */
ArrayList link_pieces = CreatePiecesFromText(new_link_start, sorted_links[l].Length, sorted_links[l]);
pieces_list.AddRange(link_pieces);
sorted_links[l].pieces.AddRange(link_pieces);
current_end = sorted_links[l].Start + sorted_links[l].Length;
}
if (current_end < Text.Length)
{
ArrayList text_pieces = CreatePiecesFromText(current_end, Text.Length - current_end, null);
pieces_list.AddRange(text_pieces);
}
pieces = new Piece[pieces_list.Count];
pieces_list.CopyTo(pieces, 0);
CharacterRange[] ranges = new CharacterRange[pieces.Length];
for (int i = 0; i < pieces.Length; i++)
{
ranges[i] = new CharacterRange(pieces[i].start, pieces[i].length);
}
string_format.SetMeasurableCharacterRanges(ranges);
Region[] regions = TextRenderer.MeasureCharacterRanges(Text,
ThemeEngine.Current.GetLinkFont(this),
PaddingClientRectangle,
string_format);
for (int i = 0; i < pieces.Length; i++)
{
pieces[i].region = regions[i];
#if NET_2_0
pieces[i].region.Translate(Padding.Left, Padding.Top);
#endif
}
Invalidate();
}
private void CreateLinkPieces()
{
if (Text.Length == 0)
{
SetStyle(ControlStyles.Selectable, false);
TabStop = false;
link_area.Start = 0;
link_area.Length = 0;
return;
}
if (Links.Count == 1 && Links[0].Start == 0 && Links[0].Length == -1)
{
Links[0].Length = Text.Length;
}
SortLinks();
// Set the LinkArea values based on first link.
if (Links.Count > 0)
{
link_area.Start = Links[0].Start;
link_area.Length = Links[0].Length;
}
else
{
link_area.Start = 0;
link_area.Length = 0;
}
TabStop = (LinkArea.Length > 0);
SetStyle(ControlStyles.Selectable, TabStop);
/* don't bother doing the rest if our handle hasn't been created */
if (!IsHandleCreated)
{
return;
}
ArrayList pieces_list = new ArrayList();
int current_end = 0;
for (int l = 0; l < sorted_links.Length; l++)
{
int new_link_start = sorted_links[l].Start;
if (new_link_start > current_end)
{
/* create/push a piece
* containing the text between
* the previous/new link */
ArrayList text_pieces = CreatePiecesFromText(current_end, new_link_start - current_end, null);
pieces_list.AddRange(text_pieces);
}
/* now create a group of pieces for
* the new link (split up by \n's) */
ArrayList link_pieces = CreatePiecesFromText(new_link_start, sorted_links[l].Length, sorted_links[l]);
pieces_list.AddRange(link_pieces);
sorted_links[l].pieces.AddRange(link_pieces);
current_end = sorted_links[l].Start + sorted_links[l].Length;
}
if (current_end < Text.Length)
{
ArrayList text_pieces = CreatePiecesFromText(current_end, Text.Length - current_end, null);
pieces_list.AddRange(text_pieces);
}
pieces = new Piece[pieces_list.Count];
pieces_list.CopyTo(pieces, 0);
CharacterRange[] ranges = new CharacterRange[pieces.Length];
for (int i = 0; i < pieces.Length; i++)
{
ranges[i] = new CharacterRange(pieces[i].start, pieces[i].length);
}
string_format.SetMeasurableCharacterRanges(ranges);
Region[] regions = TextRenderer.MeasureCharacterRanges(Text,
ThemeEngine.Current.GetLinkFont(this),
PaddingClientRectangle,
string_format);
// Get offset for different text alignments
float align_offset_x = 0F;
float align_offset_y = 0F;
if (TextAlign != ContentAlignment.TopLeft)
{
Region all_regions = new Region(new Rectangle());
foreach (Region region in regions)
{
all_regions.Union(region);
}
Graphics graphics = CreateGraphics();
if (TextAlign == ContentAlignment.TopCenter)
{
float text_width = all_regions.GetBounds(graphics).Width;
align_offset_x = (ClientRectangle.Width / 2 - text_width / 2);
}
if (TextAlign == ContentAlignment.TopRight)
{
float text_width = all_regions.GetBounds(graphics).Width;
align_offset_x = (ClientRectangle.Width - text_width);
}
if (TextAlign == ContentAlignment.MiddleLeft)
{
float text_height = all_regions.GetBounds(graphics).Height;
align_offset_y = (ClientRectangle.Height / 2 - text_height / 2);
}
if (TextAlign == ContentAlignment.MiddleCenter)
{
float text_width = all_regions.GetBounds(graphics).Width;
float text_height = all_regions.GetBounds(graphics).Height;
align_offset_x = (ClientRectangle.Width / 2 - text_width / 2);
align_offset_y = (ClientRectangle.Height / 2 - text_height / 2);
}
if (TextAlign == ContentAlignment.MiddleRight)
{
float text_width = all_regions.GetBounds(graphics).Width;
float text_height = all_regions.GetBounds(graphics).Height;
align_offset_x = (ClientRectangle.Width - text_width);
align_offset_y = (ClientRectangle.Height / 2 - text_height / 2);
}
if (TextAlign == ContentAlignment.BottomLeft)
{
float text_height = all_regions.GetBounds(graphics).Height;
align_offset_y = (ClientRectangle.Height - text_height);
}
if (TextAlign == ContentAlignment.BottomCenter)
{
float text_width = all_regions.GetBounds(graphics).Width;
float text_height = all_regions.GetBounds(graphics).Height;
align_offset_x = (ClientRectangle.Width / 2 - text_width / 2);
align_offset_y = (ClientRectangle.Height - text_height);
}
if (TextAlign == ContentAlignment.BottomRight)
{
float text_width = all_regions.GetBounds(graphics).Width;
float text_height = all_regions.GetBounds(graphics).Height;
align_offset_x = (ClientRectangle.Width - text_width);
align_offset_y = (ClientRectangle.Height - text_height);
}
}
for (int i = 0; i < pieces.Length; i++)
{
pieces[i].region = regions[i];
pieces[i].region.Translate(Padding.Left + align_offset_x, Padding.Top + align_offset_y);
}
Invalidate();
}
