private void RenderTextNode(TextNode textNode, GwenRenderContext grc)
{
if (string.IsNullOrEmpty(textNode.Text))
{
return;
}
// 当需要的时候，先更新 TextNode 的尺寸
Point textSize = grc.Renderer.MeasureText(grc.Font, textNode.Text);
if (textNode.RequestedSizeRefreshing)
{
textNode.Size = new Size(
Math.Max(textNode.Size.Width, textSize.X),
Math.Max(textNode.Size.Height, textSize.Y));
NodeSGUtil.ClampBounds(textNode);
textNode.RequestedSizeRefreshing = false;
}
Point loc = grc.GetAccumulatedDockedScrolledTranslate();
// 理论上这里我们不应当每帧对每段 Text 都调用 MeasureText()
// 不过考察 Gwen.Renderer.Tao.MeasureText() 后我们发现
// 其内部已经 Cache 了一份，把尺寸再缓存一份意义不大
Point internalOffset = TextNodeUtil.CalculateInternalTextOffset(textNode, textSize);
loc.Offset(internalOffset);
Color c = grc.Renderer.DrawColor;
grc.Renderer.DrawColor = textNode.TextColor;
grc.Renderer.RenderText(grc.Font, loc, textNode.Text);
grc.Renderer.DrawColor = c;
}
private void RenderCheckBox(CheckBox cb, GwenRenderContext grc)
{
Rectangle rect = new Rectangle(grc.GetAccumulatedDockedScrolledTranslate(), cb.MarkSize);
DrawImage(grc, rect, cb.Res_Background);
DrawImage(grc, rect, cb.Res_Mark);
}
private void RenderGrid(Grid g, GwenRenderContext grc)
{
Rectangle rect = new Rectangle(grc.GetAccumulatedDockedTranslate(), g.Size);
grc.Renderer.DrawLinedRect(rect);
Point loc = grc.GetAccumulatedDockedScrolledTranslate();
for (int i = 0; i < g.RowCount; i++)
{
for (int k = 0; k < g.ColumnCount; k++)
{
Rectangle cellRect = new Rectangle();
cellRect.X = loc.X + i * (g.CellSize.Width + g.CellPadding.Width);
cellRect.Y = loc.Y + k * (g.CellSize.Height + g.CellPadding.Height);
cellRect.Width = g.CellSize.Width;
cellRect.Height = g.CellSize.Height;
grc.Renderer.DrawLinedRect(cellRect);
}
}
}
private void RenderImageNode(ImageNode imageNode, GwenRenderContext grc)
{
DrawImage(grc, new Rectangle(grc.GetAccumulatedDockedScrolledTranslate(), imageNode.Size), imageNode.Res);
}
private void RenderProgressBar(ProgressBar pb, GwenRenderContext grc)
{
Rectangle rect = new Rectangle(grc.GetAccumulatedDockedScrolledTranslate(), pb.Size);
DrawImage(grc, rect, pb.Res_Progress);
}
private void RenderButton(Button bt, GwenRenderContext grc)
{
DrawImage(grc, new Rectangle(grc.GetAccumulatedDockedScrolledTranslate(), bt.Size), bt.Res_Current);
}
