public void DrawImageClipped(Gdi::Graphics g, Gdi::RectangleF clip)
{
clip.Intersect(imageArea);
float cacheX = clip.X + 0.5f;
if (offsetX > 0)
{
cacheX -= offsetX;
}
float cacheY = clip.Y + 0.5f;
if (offsetY > 0)
{
cacheY -= offsetY;
}
#if WIN32PINVOKE
using (Gdi::Graphics gImg = Gdi::Graphics.FromImage(this.cache)){
const int SRCCOPY = 0x00CC0020;
System.IntPtr dstDC = g.GetHdc();
System.IntPtr srcDC = GetCacheHdc(dstDC);
BitBlt(
dstDC, (int)clip.X, (int)clip.Y,
(int)clip.Width, (int)clip.Height,
srcDC, (int)cacheX, (int)cacheY,
SRCCOPY
);
g.ReleaseHdc(dstDC);
}
#else
Gdi::RectangleF rectI = new Gdi::RectangleF(cacheX, cacheY, clip.Width, clip.Height);
g.DrawImage(this.cache, clip, rectI, Gdi::GraphicsUnit.Pixel);
#endif
}
/// <summary>
/// 指定した状態に応じた CheckBox を表示します。
/// </summary>
/// <param name="g">描画先の Graphics を指定します。</param>
/// <param name="state">Check 状態を指定します。</param>
/// <param name="enabled">CheckBox が有効になっているかどうかを指定します。</param>
public void DrawBox(Gdi::Graphics g, bool?state, bool enabled)
{
Gdi::Rectangle src = rect;
src.X += 14 * (state == null?1: (bool)state?2: 0);
src.Y += 14 * (enabled?0:1);
g.DrawImage(this.image, 0, 0, src, Gdi::GraphicsUnit.Pixel);
}
void ITreeNodeIcon.DrawIcon(Gdi::Graphics g, Gdi::Rectangle rect, TreeNode node)
{
switch (this.type)
{
case IconType.Image:
g.DrawImage(this.img, rect);
break;
case IconType.Icon:
g.DrawIcon(this.icon, rect);
break;
case IconType.ImageList:
g.DrawImage(this.list.Images[this.index], rect);
break;
case IconType.ClippedImage:
g.DrawImage(this.img, rect, this.rect, Gdi::GraphicsUnit.Pixel);
break;
}
}
private void Draw(Gdi::Graphics g)
{
if (this.bmp != null)
{
//g.DrawLine(Gdi::Pens.Blue,0,0,100,100);
/*
* g.DrawImageUnscaledAndClipped(
* bmp,
* new Gdi::Rectangle(0,0,this.Width,this.Height)
* );
* //*/
g.Clear(this.BackColor);
g.DrawImage(this.bmp, rcDest, rcSrc, Gdi::GraphicsUnit.Pixel);
}
}
void UpdatePictureImage()
{
if (this.targetImage != null && this.backImage != null)
{
using (Gdi::Graphics g = Gdi::Graphics.FromImage(this.backImage)){
double sx = (double)this.targetImage.Width / this.backImage.Width;
double sy = (double)this.targetImage.Height / this.backImage.Height;
double s = System.Math.Max(sx, sy) * 1.2;
float x = (float)System.Math.Round(0.5 * (this.backImage.Width - this.targetImage.Width / s));
float y = (float)System.Math.Round(0.5 * (this.backImage.Height - this.targetImage.Height / s));
float w = (float)System.Math.Round(this.targetImage.Width / s);
float h = (float)System.Math.Round(this.targetImage.Height / s);
g.Clear(Gdi::Color.Transparent);
g.DrawImage(this.targetImage, x, y, w, h);
this.deform.SetRectangle(x, y, w, h);
this.deform.imageWidth = this.targetImage.Width;
this.deform.imageHeight = this.targetImage.Height;
this.deform.Draw(this.foreGraphics);
}
}
}
/// <summary>
/// 描画する背景画像の情報を更新します。
/// </summary>
/// <param name="image">描画する背景画像を指定します。</param>
/// <param name="scaleX">画像の表示 X 倍率を指定します。</param>
/// <param name="scaleY">画像の表示 Y 倍率を指定します。</param>
/// <param name="offsetX">画像の表示 X 位置を指定します。</param>
/// <param name="offsetY">画像の表示 Y 位置を指定します。</param>
/// <param name="displaySize">画面上の表示の大きさを指定します。</param>
public void UpdateImage(Gdi::Image image, float scaleX, float scaleY, float offsetX, float offsetY, Gdi::Size displaySize)
{
if (image == this.original &&
scaleX == this.scaleX && scaleY == this.scaleY &&
offsetX == this.offsetX && offsetY == this.offsetY &&
displaySize == this.displaySize
)
{
return;
}
this.original = image;
this.scaleX = scaleX;
this.scaleY = scaleY;
this.offsetX = offsetX;
this.offsetY = offsetY;
this.displaySize = displaySize;
imageArea = new Gdi::RectangleF(offsetX, offsetY, image.Width * scaleX, image.Height * scaleY);
// 画面座標での描画領域
Gdi::RectangleF srcRectD = Gdi::RectangleF.Intersect(new Gdi::RectangleF(Gdi::PointF.Empty, displaySize), imageArea);
// 画像座標での描画領域
Gdi::RectangleF srcRectI = new Gdi::RectangleF(
(srcRectD.X - offsetX) / scaleX,
(srcRectD.Y - offsetY) / scaleY,
srcRectD.Width / scaleX,
srcRectD.Height / scaleY
);
srcRectD.X = 0;
srcRectD.Y = 0;
this.FreeCache();
this.cache = new System.Drawing.Bitmap((int)(srcRectD.Width + .5f), (int)(srcRectD.Height + .5f));
using (Gdi::Graphics g = Gdi::Graphics.FromImage(this.cache))
g.DrawImage(image, srcRectD, srcRectI, Gdi::GraphicsUnit.Pixel);
ImageEnlight(this.cache);
}