//產生 PDF 元產所需的參數 (改用Thread的方式ren)
private PXCV_Lib36.PXV_CommonRenderParameters prepareCommonRenderParameter(PDFDoc pdfDoc, int dpi, int pageNumber, float zoom, int offsetX, int offsetY, Border border, bool isSinglePage)
{
IntPtr p1 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PXCV_Helper.RECT)));
IntPtr p2 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PXCV_Helper.RECT)));
System.Drawing.Point m_Offset = new System.Drawing.Point(offsetX, offsetY);
System.Drawing.Size aPageSize = System.Drawing.Size.Empty;
PXCV_Helper.RECT aWholePage = new PXCV_Helper.RECT();
PXCV_Helper.RECT aDrawRect = new PXCV_Helper.RECT();
PXCV_Lib36.PXV_CommonRenderParameters commonRenderParam = new PXCV_Lib36.PXV_CommonRenderParameters();
PageDimension aPageDim;
pdfDoc.GetPageDimensions(pageNumber, out aPageDim.w, out aPageDim.h);
//Border bd = border; //可視範圍
double borderHeight = (border.ActualHeight / (double)96) * dpi;
double borderWidth = (border.ActualWidth / (double)96) * dpi;
if (zoomStep == 0)
{
//PDF原尺吋
aPageSize.Width = (int)((aPageDim.w / 72.0 * dpi) * zoom);
aPageSize.Height = (int)((aPageDim.h / 72.0 * dpi) * zoom);
double borderRatio = borderWidth / borderHeight;
double renderImageRatio = 0;
if (isSinglePage)
{
renderImageRatio = (double)aPageSize.Width / (double)aPageSize.Height;
}
else
{
renderImageRatio = (double)(aPageSize.Width * 2) / (double)aPageSize.Height;
}
if (aPageSize.Width < borderWidth && aPageSize.Height < borderHeight)
{ //PDF原尺吋就比canvas還小 --> 貼齊canvas
double newPageW, newPageH;
if (renderImageRatio > borderRatio)
{ //寬先頂到
newPageW = borderWidth / 2;
baseScale = newPageW / (double)aPageSize.Width;
newPageH = Math.Round(baseScale * (double)aPageSize.Height, 2);
}
else
{ //高先頂到
newPageH = borderHeight;
baseScale = newPageH / (double)aPageSize.Height;
newPageW = Math.Round(baseScale * (double)aPageSize.Width, 2);
}
aPageSize.Width = (int)newPageW;
aPageSize.Height = (int)newPageH;
}
else
{ //PDF有一邊比canvas還大
double newPageW, newPageH;
if (renderImageRatio > borderRatio)
{ //寬先頂到
newPageW = borderWidth / 2;
baseScale = newPageW / (double)aPageSize.Width;
newPageH = Math.Round(baseScale * (double)aPageSize.Height, 2);
}
else
{ //高先頂到
newPageH = borderHeight;
baseScale = newPageH / (double)aPageSize.Height;
newPageW = Math.Round(baseScale * (double)aPageSize.Width, 2);
}
aPageSize.Width = (int)newPageW;
aPageSize.Height = (int)newPageH;
}
}
else
{
//PDF原尺吋
aPageSize.Width = (int)((aPageDim.w / 72.0 * dpi) * zoom * baseScale);
aPageSize.Height = (int)((aPageDim.h / 72.0 * dpi) * zoom * baseScale);
}
//Region rgn1 = new Region(new System.Drawing.Rectangle(-m_Offset.X, -m_Offset.Y, aPageSize.Width, aPageSize.Height));
//rgn1.Complement(new System.Drawing.Rectangle(0, 0, (int)borderWidth, (int)borderHeight));
//rgn1.Complement(new System.Drawing.Rectangle(0, 0, aPageSize.Width, aPageSize.Height));
aWholePage.left = -m_Offset.X;
aWholePage.top = -m_Offset.Y;
aWholePage.right = aWholePage.left + aPageSize.Width;
aWholePage.bottom = aWholePage.top + aPageSize.Height;
//計算要ren的範圍
//TODO: 改成部分ren，目前是全ren
aDrawRect.left = 0;
aDrawRect.top = 0;
if (zoomStep == 0)
{
if (aPageSize.Width < borderWidth)
{
aDrawRect.right = aPageSize.Width;
}
else
{
aDrawRect.right = (int)borderWidth;
}
if (aPageSize.Height < borderHeight)
{
aDrawRect.bottom = aPageSize.Height;
}
else
{
aDrawRect.bottom = (int)borderHeight;
}
}
else
{
aDrawRect.right = aPageSize.Width;
aDrawRect.bottom = aPageSize.Height;
}
//aDrawRect.right = aPageSize.Width;
//aDrawRect.bottom = aPageSize.Height;
Marshal.StructureToPtr(aWholePage, p1, false);
Marshal.StructureToPtr(aDrawRect, p2, false);
commonRenderParam.WholePageRect = p1;
commonRenderParam.DrawRect = p2;
commonRenderParam.RenderTarget = PXCV_Lib36.PXCV_RenderMode.pxvrm_Viewing;
commonRenderParam.Flags = 0;
//System.Drawing.Rectangle rc = new System.Drawing.Rectangle(0, 0, aControlSize.Width, aControlSize.Height);
//System.Drawing.Rectangle rc = new System.Drawing.Rectangle(0, 0, aPageSize.Width, aPageSize.Height);
//rc.Intersect(new System.Drawing.Rectangle(-m_Offset.X, -m_Offset.Y, aPageSize.Width, aPageSize.Height));
//e.DrawRectangle(System.Windows.Media.Brushes.White, null, new Rect(new System.Windows.Size(rc.Width, rc.Height)));
//aGraphics.FillRectangle(System.Drawing.Brushes.White, rc);
//aGraphics.FillRegion(System.Drawing.Brushes.Gray, rgn1);
//rgn1.Dispose();
return(commonRenderParam);
}
private PXCV_Lib36.PXV_CommonRenderParameters prepareCommonRenderParameter(PDFDoc pdfDoc, int dpi, int pageNumber, float zoom, int offsetX, int offsetY, Border border, bool isSinglePage)
{
IntPtr intPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PXCV_Helper.RECT)));
IntPtr intPtr2 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PXCV_Helper.RECT)));
Point point = new Point(offsetX, offsetY);
Size empty = Size.Empty;
PXCV_Helper.RECT rECT = default(PXCV_Helper.RECT);
PXCV_Helper.RECT rECT2 = default(PXCV_Helper.RECT);
PXCV_Lib36.PXV_CommonRenderParameters result = default(PXCV_Lib36.PXV_CommonRenderParameters);
PageDimension pageDimension = default(PageDimension);
pdfDoc.GetPageDimensions(pageNumber, out pageDimension.w, out pageDimension.h);
double num = border.ActualHeight / 96.0 * (double)dpi;
double num2 = border.ActualWidth / 96.0 * (double)dpi;
if (zoomStep == 0)
{
empty.Width = (int)(pageDimension.w / 72.0 * (double)dpi * (double)zoom);
empty.Height = (int)(pageDimension.h / 72.0 * (double)dpi * (double)zoom);
double num3 = num2 / num;
double num4 = 0.0;
num4 = ((!isSinglePage) ? ((double)(empty.Width * 2) / (double)empty.Height) : ((double)empty.Width / (double)empty.Height));
if ((double)empty.Width < num2 && (double)empty.Height < num)
{
double num5;
double num6;
if (num4 > num3)
{
num5 = num2 / 2.0;
baseScale = num5 / (double)empty.Width;
num6 = Math.Round(baseScale * (double)empty.Height, 2);
}
else
{
num6 = num;
baseScale = num6 / (double)empty.Height;
num5 = Math.Round(baseScale * (double)empty.Width, 2);
}
empty.Width = (int)num5;
empty.Height = (int)num6;
}
else
{
double num7;
double num8;
if (num4 > num3)
{
num7 = num2 / 2.0;
baseScale = num7 / (double)empty.Width;
num8 = Math.Round(baseScale * (double)empty.Height, 2);
}
else
{
num8 = num;
baseScale = num8 / (double)empty.Height;
num7 = Math.Round(baseScale * (double)empty.Width, 2);
}
empty.Width = (int)num7;
empty.Height = (int)num8;
}
}
else
{
empty.Width = (int)(pageDimension.w / 72.0 * (double)dpi * (double)zoom * baseScale);
empty.Height = (int)(pageDimension.h / 72.0 * (double)dpi * (double)zoom * baseScale);
}
rECT.left = -point.X;
rECT.top = -point.Y;
rECT.right = rECT.left + empty.Width;
rECT.bottom = rECT.top + empty.Height;
rECT2.left = 0;
rECT2.top = 0;
if (zoomStep == 0)
{
if ((double)empty.Width < num2)
{
rECT2.right = empty.Width;
}
else
{
rECT2.right = (int)num2;
}
if ((double)empty.Height < num)
{
rECT2.bottom = empty.Height;
}
else
{
rECT2.bottom = (int)num;
}
}
else
{
rECT2.right = empty.Width;
rECT2.bottom = empty.Height;
}
Marshal.StructureToPtr((object)rECT, intPtr, false);
Marshal.StructureToPtr((object)rECT2, intPtr2, false);
result.WholePageRect = intPtr;
result.DrawRect = intPtr2;
result.RenderTarget = PXCV_Lib36.PXCV_RenderMode.pxvrm_Viewing;
result.Flags = 0;
return(result);
}