private void DrawPreview()
{
Dictionary <char, int> charsToBytes;
lock (_charsToIndices) charsToBytes = ExpandCollectionArray(_charsToIndices);
string text = Dispatcher.Invoke(() => PreviewTextBox.Text);
GLRectangle rectangle = new GLRectangle {
Height = 23
};
using (GLService.AcquireContext(GLControlElement.WindowInfo))
{
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
using (GLShaders.PalettedTexture.Use(_texture, _palette, _currentPalette))
_texture.Draw(0, 0, 0);
for (int i = 0; i < _charactersWidths.Length; i++)
{
rectangle.X = (i % 21) * 24;
rectangle.Y = (i / 21) * 24;
rectangle.Width = _charactersWidths[i] * 2;
if (i == _currentIndex)
{
rectangle.DrawSolid(SelectedColor);
}
else
{
rectangle.DrawBorder(GridColor);
}
}
float x = 0;
float y = _texture.Height + 24;
using (GLShaders.PalettedTexture.Use(_texture, _palette, FF8TextTagColor.White - FF8TextTagColor.Disabled))
{
foreach (char ch in text)
{
if (ch == '\r')
{
continue;
}
if (ch == '\n')
{
x = 0;
y += 24;
continue;
}
int index;
if (charsToBytes.TryGetValue(ch, out index))
{
index -= 32;
const float h = 23;
float w = _charactersWidths[index] * 2;
_texture.Draw(x, y, 0, (index % 21) * 24f, (index / 21) * 24, w, h);
x += w;
}
}
}
GL.Disable(EnableCap.Blend);
}
}
