public virtual double PrepareForDrawing(ILayoutParameters parameters)
{
cursorInRow = null;
defaultForeground = parameters.DefaultForeground;
selectionColor = parameters.SelectionColor;
textLayout = TextLayoutCache.GetValue(parameters);
lineSize = LineSizeCache.GetValue(parameters);
charWidth = CharSizeCache.GetValue(parameters).Width;
if (lineSize.Width == 0)
{
return(0);
}
// Math.Max used to prevent division by zero errors on windows narrower than one character
MaximalColumn = Math.Max(((int)(lineSize.Width / charWidth)) - 1, 0);
var charsOnLine = MaximalColumn + 1;
var lengthInTextElementsAtLeastOne = lengthInTextElements == 0 ? 1 : lengthInTextElements; // because even empty line has height of one line
lineCount = Math.Max(minimalSublineCount, DivisionWithCeiling(lengthInTextElementsAtLeastOne, charsOnLine));
return(lineSize.Height * lineCount);
}
public static void LoadTheme()
{
IResourceDictionary resDict = Application.Current.Resources;
object?outVar;
IsDarkMode = false;
if (resDict.TryGetResource("IsDarkMode", out outVar))
{
if (outVar is bool b)
{
IsDarkMode = b;
}
}
if (resDict.TryGetResource("SystemControlForegroundBaseHighBrush", out outVar))
{
ForegroundBrush = (IBrush)outVar !;
}
if (resDict.TryGetResource("SystemControlBackgroundAltHighBrush", out outVar))
{
BackgroundBrush = (IBrush)outVar !;
}
if (resDict.TryGetResource("AccentBrush1", out outVar))
{
AccentBrush1 = (IBrush)outVar !;
AccentPen1 = new Pen(AccentBrush1);
AccentPen1Thickness2 = new Pen(AccentBrush1, 2);
AccentPen1Thickness3 = new Pen(AccentBrush1, 3);
}
if (resDict.TryGetResource("AccentBrush1Semi", out outVar))
{
AccentBrush1Semi = (IBrush)outVar !;
}
if (resDict.TryGetResource("AccentBrush2", out outVar))
{
AccentBrush2 = (IBrush)outVar !;
AccentPen2 = new Pen(AccentBrush2, 1);
AccentPen2Thickness2 = new Pen(AccentBrush2, 2);
AccentPen2Thickness3 = new Pen(AccentBrush2, 3);
}
if (resDict.TryGetResource("AccentBrush2Semi", out outVar))
{
AccentBrush2Semi = (IBrush)outVar !;
}
if (resDict.TryGetResource("AccentBrush3", out outVar))
{
AccentBrush3 = (IBrush)outVar !;
AccentPen3 = new Pen(AccentBrush3, 1);
AccentPen3Thick = new Pen(AccentBrush3, 3);
}
if (resDict.TryGetResource("AccentBrush3Semi", out outVar))
{
AccentBrush3Semi = (IBrush)outVar !;
}
if (resDict.TryGetResource("TickLineBrushLow", out outVar))
{
TickLineBrushLow = (IBrush)outVar !;
}
if (resDict.TryGetResource("BarNumberBrush", out outVar))
{
BarNumberBrush = (IBrush)outVar !;
BarNumberPen = new Pen(BarNumberBrush, 1);
}
if (resDict.TryGetResource("WhiteKeyBrush", out outVar))
{
WhiteKeyBrush = (IBrush)outVar !;
}
if (resDict.TryGetResource("WhiteKeyNameBrush", out outVar))
{
WhiteKeyNameBrush = (IBrush)outVar !;
}
if (resDict.TryGetResource("CenterKeyBrush", out outVar))
{
CenterKeyBrush = (IBrush)outVar !;
}
if (resDict.TryGetResource("CenterKeyNameBrush", out outVar))
{
CenterKeyNameBrush = (IBrush)outVar !;
}
if (resDict.TryGetResource("BlackKeyBrush", out outVar))
{
BlackKeyBrush = (IBrush)outVar !;
}
if (resDict.TryGetResource("BlackKeyNameBrush", out outVar))
{
BlackKeyNameBrush = (IBrush)outVar !;
}
if (!IsDarkMode)
{
ExpBrush = WhiteKeyBrush;
ExpNameBrush = WhiteKeyNameBrush;
ExpActiveBrush = BlackKeyBrush;
ExpActiveNameBrush = BlackKeyNameBrush;
ExpShadowBrush = CenterKeyBrush;
ExpShadowNameBrush = CenterKeyNameBrush;
}
else
{
ExpBrush = BlackKeyBrush;
ExpNameBrush = BlackKeyNameBrush;
ExpActiveBrush = WhiteKeyBrush;
ExpActiveNameBrush = WhiteKeyNameBrush;
ExpShadowBrush = CenterKeyBrush;
ExpShadowNameBrush = CenterKeyNameBrush;
}
TextLayoutCache.Clear();
MessageBus.Current.SendMessage(new ThemeChangedEvent());
}
public TextLayoutCache(TextLayoutCache layout) : this()
{
Previus = layout;
}
