//渲染图片核心方法
private void RenderImageCore(LayoutData layout)
{
layout.DoLayout(); //执行布局
this.CurrentImagePreferredRect = layout.OutImageBounds; //保存图片区域矩形
bool needRotate = !(float.IsNaN(this.m_ImageRotateAngle) || this.m_ImageRotateAngle % 360f == 0f); //是否需要旋转
Rectangle imageBounds = needRotate ? RenderEngine.RotateRect(this.m_Graphics, this.CurrentImagePreferredRect, this.m_ImageRotateAngle, false) : this.CurrentImagePreferredRect; //新绘图区域(如果旋转则为旋转后的区域)
//开始绘制
if (this.m_State == State.Disabled && this.m_ImageGrayOnDisabled)
{
using (Image grayImg = RenderEngine.GetGrayImage(this.CurrentImage))
{
this.m_Graphics.DrawImage(grayImg, imageBounds);
}
}
else
{
this.m_Graphics.DrawImage(this.CurrentImage, imageBounds);
}
//恢复旋转
if (needRotate)
{
this.m_Graphics.ResetTransform();
}
}
/// <summary>
/// 渲染九宫格背景图
/// </summary>
/// <param name="rect">渲染区域</param>
public void RenderBackgroundImage9(Rectangle rect)
{
this.m_BackgroundImage9Rect = rect;
if (this.m_State == State.Hidden || !RectangleEx.IsVisible(this.m_BackgroundImage9Rect) || this.CurrentBackgroundImage9 == null)
{
return;
}
if (this.m_State == State.Disabled && this.m_BackgroundImage9GrayOnDisabled)//灰色图片
{
using (Image img = RenderEngine.GetGrayImage(this.CurrentBackgroundImage9))
{
RenderEngine.DrawBackgroundImage9(this.m_Graphics, img, this.CurrentBackgroundImage9Rect, this.m_BackgroundImage9Padding.Left, this.m_BackgroundImage9Padding.Top, this.m_BackgroundImage9Padding.Right, this.m_BackgroundImage9Padding.Bottom, this.m_BackgroundImage9Layout);
}
}
else//原图
{
RenderEngine.DrawBackgroundImage9(this.m_Graphics, this.CurrentBackgroundImage9, this.CurrentBackgroundImage9Rect, this.m_BackgroundImage9Padding.Left, this.m_BackgroundImage9Padding.Top, this.m_BackgroundImage9Padding.Right, this.m_BackgroundImage9Padding.Bottom, this.m_BackgroundImage9Layout);
}
}
/// <summary>
/// 渲染背景图
/// </summary>
/// <param name="rect">渲染区域</param>
public void RenderBackgroundImage(Rectangle rect)
{
this.m_BackgroundImageRect = rect;
if (this.m_State == State.Hidden || !RectangleEx.IsVisible(this.m_BackgroundImageRect) || this.CurrentBackgroundImage == null)
{
return;
}
if (this.m_State == State.Disabled && this.m_BackgroundImageGrayOnDisabled)//灰色图片
{
using (Image img = RenderEngine.GetGrayImage(this.CurrentBackgroundImage))
{
RenderEngine.DrawBackgroundImage(this.m_Graphics, img, this.CurrentBackgroundImageRect, this.m_BackgroundImageLayout);
}
}
else//原图
{
RenderEngine.DrawBackgroundImage(this.m_Graphics, this.CurrentBackgroundImage, this.CurrentBackgroundImageRect, this.m_BackgroundImageLayout);
}
}
