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Add color highlighting for ASS color tags

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This commit is contained in:
OmrSi 2020-11-12 17:24:28 +02:00
parent d8b7041185
commit 5ffe71a154
1 changed files with 79 additions and 1 deletions
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80
src/Controls/SETextBox.cs
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@ -302,6 +302,10 @@ namespace Nikse.SubtitleEdit.Controls
bool htmlTagFontOn = false;
int htmlTagStart = -1;
bool assaTagOn = false;
bool assaPrimaryColorTagOn = false;
bool assaSecondaryColorTagOn = false;
bool assaBorderColorTagOn = false;
bool assaShadowColorTagOn = false;
var assaTagStart = -1;
int tagOn = -1;
var textLength = text.Length;
@ -318,7 +322,36 @@ namespace Nikse.SubtitleEdit.Controls
_richTextBoxTemp.SelectionStart = assaTagStart;
_richTextBoxTemp.SelectionLength = i - assaTagStart + 1;
_richTextBoxTemp.SelectionColor = Color.DarkSeaGreen;
htmlTagStart = -1;
if (assaTagStart >= 0)
{
if (assaPrimaryColorTagOn)
{
string colorTag = text.IndexOf("\\c", assaTagStart, StringComparison.OrdinalIgnoreCase) != -1 ? "\\c" : "\\1c";
SetASSAColor(text, assaTagStart, colorTag);
assaPrimaryColorTagOn = false;
}
if (assaSecondaryColorTagOn)
{
SetASSAColor(text, assaTagStart, "\\2c");
assaSecondaryColorTagOn = false;
}
if (assaBorderColorTagOn)
{
SetASSAColor(text, assaTagStart, "\\3c");
assaBorderColorTagOn = false;
}
if (assaShadowColorTagOn)
{
SetASSAColor(text, assaTagStart, "\\4c");
assaShadowColorTagOn = false;
}
}
assaTagStart = -1;
}
}
else if (htmlTagOn)
@ -379,9 +412,14 @@ namespace Nikse.SubtitleEdit.Controls
}
else if (ch == '{' && i < textLength - 1 && text[i + 1] == '\\' && text.IndexOf('}', i) > 0)
{
var s = text.Substring(i);
assaTagOn = true;
tagOn = i;
assaTagStart = i;
assaPrimaryColorTagOn = s.Contains("\\c", StringComparison.OrdinalIgnoreCase) || s.Contains("\\1c", StringComparison.OrdinalIgnoreCase);
assaSecondaryColorTagOn = s.Contains("\\2c", StringComparison.OrdinalIgnoreCase);
assaBorderColorTagOn = s.Contains("\\3c", StringComparison.OrdinalIgnoreCase);
assaShadowColorTagOn = s.Contains("\\4c", StringComparison.OrdinalIgnoreCase);
}
else if (ch == '<')
{
@ -442,5 +480,45 @@ namespace Nikse.SubtitleEdit.Controls
_checkRtfChange = true;
}
}
private void SetASSAColor(string text, int assaTagStart, string colorTag)
{
int colorStart = text.IndexOf(colorTag, assaTagStart, StringComparison.OrdinalIgnoreCase);
if (colorStart > 0)
{
colorStart += colorTag.Length;
if (text[colorStart] == '&')
{
colorStart++;
}
int colorEnd = text.IndexOf('&', colorStart + 1);
if (colorEnd > 0)
{
var color = text.Substring(colorStart, colorEnd - colorStart);
try
{
if (color.Length == 7)
{
var rgbColor = string.Concat("#", color[5], color[6], color[3], color[4], color[1], color[2]);
Color c = ColorTranslator.FromHtml(rgbColor);
_richTextBoxTemp.SelectionStart = colorStart;
_richTextBoxTemp.SelectionLength = colorEnd - colorStart;
_richTextBoxTemp.SelectionColor = c;
var diff = Math.Abs(c.R - BackColor.R) + Math.Abs(c.G - BackColor.G) + Math.Abs(c.B - BackColor.B);
if (diff < 60)
{
_richTextBoxTemp.SelectionBackColor = Color.FromArgb(byte.MaxValue - c.R, byte.MaxValue - c.B, byte.MaxValue - c.R, byte.MaxValue - c.G);
}
}
}
catch
{
// ignored
}
}
}
}
}
}