/// <summary>
/// Run our application until the user quits.
/// </summary>
public void Run()
{
// Make window active and hide mouse cursor.
window.PointerCursor = null;
window.Activate();
// Infinite loop to prevent the application from exiting.
while (true)
{
// Dispatch all pending events in the queue.
window.Dispatcher.ProcessEvents(CoreProcessEventsOption.ProcessAllIfPresent);
// Quit if the users presses Escape key.
if (window.GetAsyncKeyState(VirtualKey.Escape) == CoreVirtualKeyStates.Down)
{
return;
}
// Set the Direct2D drawing target.
d2dContext.Target = d2dTarget;
// Clear the target.
d2dContext.BeginDraw();
d2dContext.Clear(Color.CornflowerBlue);
// Draw a block of text that will be clipped against the specified layout rectangle.
d2dContext.FillRectangle(new RectangleF(50, 50, 200, 200), backgroundBrush);
d2dContext.DrawText("This text is long enough to overflow the designed region but will be clipped to the containing rectangle. Lorem ipsum dolor sit amet, consectetur adipiscing elit. ", textFormat, new RectangleF(50, 50, 200, 200), textBrush, DrawTextOptions.Clip);
// Draw a block of text that will overflow the specified layout rectangle.
d2dContext.FillRectangle(new RectangleF(50, 300, 200, 200), backgroundBrush);
d2dContext.DrawText("However, this other text isn't going to be clipped: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean gravida dui id accumsan dictum.", textFormat, new RectangleF(50, 300, 200, 200), textBrush, DrawTextOptions.None);
// Draw three lines of text with different measuring modes.
d2dContext.FillRectangle(new RectangleF(300, 50, 400, 200), backgroundBrush);
d2dContext.DrawText("MeasuringMode: Natural", textFormat, new RectangleF(300, 50, 400, 200), textBrush, DrawTextOptions.None, MeasuringMode.Natural);
d2dContext.DrawText("MeasuringMode: GDI classic", textFormat, new RectangleF(300, 80, 400, 200), textBrush, DrawTextOptions.None, MeasuringMode.GdiClassic);
d2dContext.DrawText("MeasuringMode: GDI natural", textFormat, new RectangleF(300, 110, 400, 200), textBrush, DrawTextOptions.None, MeasuringMode.GdiNatural);
float layoutYOffset = (float)Math.Cos(layoutY) * 50.0f;
// Draw moving text.
d2dContext.FillRectangle(new RectangleF(300, 300, 400, 200), backgroundBrush);
d2dContext.DrawTextLayout(new Vector2(300, 350 + layoutYOffset), textLayout1, textBrush);
// Draw moving text without pixel snapping, thus giving a smoother movement.
d2dContext.FillRectangle(new RectangleF(750, 300, 400, 200), backgroundBrush);
d2dContext.DrawTextLayout(new Vector2(750, 350 + layoutYOffset), textLayout2, textBrush, DrawTextOptions.NoSnap);
d2dContext.EndDraw();
layoutY += 1.0f / 60.0f;
// Present the current buffer to the screen.
swapChain.Present(1, PresentFlags.None);
}
}
/// <summary>
/// Выводит текст на экран. Должен вызываться последним после всех остальных операций по Рендерингу. Перед метордом Презент Свапчейна.
/// </summary>
/// <param name="text">Текст который будет рисоваться.</param>
/// <param name="x">Отступ текста от левого края экрана, в пикселях.</param>
/// <param name="y">Отступ текста от верхнего края экрана, в пикселях.</param>
/// <param name="width">Ширина области в которую будет выводиться текст</param>
/// <param name="height">Высота области в которую будет выводиться текст</param>
public void DrawText(string text, float x = 0, float y = 0, float width = 400, float height = 300)
{
_RenderTarget2D.Target = d2dTarget;
_RenderTarget2D.BeginDraw();
_RenderTarget2D.DrawText(
text,
_TextFormat,
new RectangleF(x, y, width, height),
_SceneColorBrush,
DrawTextOptions.Clip);
_RenderTarget2D.EndDraw();
}
public void DrawText(string text, TextFormat textFormat, RectangleF layoutRect, Brush foregroundBrush,
DrawTextOptions textOptions = DrawTextOptions.None)
{
deviceContext.DrawText(text, textFormat, Convert(layoutRect), foregroundBrush, textOptions);
}
