/* ----------------------------------------------------------------- */
///
/// FitToWidth
///
/// <summary>
/// ウィンドウ（描画領域）の幅に合わせて拡大/縮小を行う．
/// </summary>
///
/* ----------------------------------------------------------------- */
public static double FitToWidth(Canvas canvas)
{
if (canvas == null)
{
return(0.0);
}
var engine = canvas.Tag as CanvasEngine;
if (engine == null)
{
return(0.0);
}
var core = engine.Core;
if (core == null)
{
return(0.0);
}
core.FitToWidth(canvas.Parent.Handle);
core.Zoom = core.Zoom - 1; // 暫定
#if CUBE_ASYNC
CanvasPolicy.AsyncRender(canvas, true);
#else
CanvasPolicy.Render(canvas, true);
#endif
return(core.Zoom);
}
/* ----------------------------------------------------------------- */
///
/// ZoomOut
///
/// <summary>
/// 現在のページを縮小して再描画する．縮小率はライブラリ依存．
/// </summary>
///
/* ----------------------------------------------------------------- */
public static double ZoomOut(Canvas canvas)
{
if (canvas == null)
{
return(0.0);
}
var engine = canvas.Tag as CanvasEngine;
if (engine == null)
{
return(0.0);
}
var core = engine.Core;
if (core == null)
{
return(0.0);
}
var prev = canvas.Size;
core.ZoomOut();
#if CUBE_ASYNC
CanvasPolicy.AsyncRender(canvas, true);
#else
CanvasPolicy.Render(canvas, true);
#endif
return(core.Zoom);
}
/* ----------------------------------------------------------------- */
///
/// Zoom
///
/// <summary>
/// 指定した倍率で現在のページを再描画する．
/// </summary>
///
/* ----------------------------------------------------------------- */
public static double Zoom(Canvas canvas, double percent)
{
if (canvas == null)
{
return(0.0);
}
var engine = canvas.Tag as CanvasEngine;
if (engine == null)
{
return(0.0);
}
var core = engine.Core;
if (core == null)
{
return(0.0);
}
var prev = canvas.Size;
if (percent < core.Zoom || core.Zoom < 400)
{
core.Zoom = Math.Min(percent, 400);
#if CUBE_ASYNC
CanvasPolicy.AsyncRender(canvas, true);
#else
CanvasPolicy.Render(canvas, true);
#endif
}
return(core.Zoom);
}
/* ----------------------------------------------------------------- */
///
/// LastPage
///
/// <summary>
/// 最後のページを描画する．
/// </summary>
///
/* ----------------------------------------------------------------- */
public static int LastPage(Canvas canvas)
{
if (canvas == null)
{
return(0);
}
var engine = canvas.Tag as CanvasEngine;
if (engine == null)
{
return(0);
}
var core = engine.Core;
if (core == null)
{
return(0);
}
core.CurrentPage = core.PageCount;
#if CUBE_ASYNC
CanvasPolicy.AsyncRender(canvas, false);
var control = (ScrollableControl)canvas.Parent;
control.AutoScrollPosition = new Point(0, 0);
#else
if (CanvasPolicy.Render(canvas, false))
{
engine.UpdateURL();
var control = (ScrollableControl)canvas.Parent;
control.AutoScrollPosition = new Point(0, 0);
}
#endif
return(core.CurrentPage);
}
public static bool Search(Canvas canvas, SearchArgs args)
{
if (canvas == null)
{
return(false);
}
var engine = canvas.Tag as CanvasEngine;
if (engine == null)
{
return(false);
}
var core = engine.Core;
if (core == null)
{
return(false);
}
core.SearchCaseSensitive = !args.IgnoreCase;
var order = args.WholeDocument ? PDFLibNet.PDFSearchOrder.PDFSearchFromdBegin : PDFLibNet.PDFSearchOrder.PDFSearchFromCurrent;
int result = 0;
if (args.FromBegin)
{
PreviousSearchResult_ = null;
result = core.FindFirst(args.Text, order, false, args.WholeWord);
}
else if (args.FindNext)
{
result = core.FindNext(args.Text);
}
else
{
result = core.FindPrevious(args.Text);
}
//else result = core.FindText(args.Text, core.CurrentPage, order, !args.IgnoreCase, !args.FindNext, true, args.WholeWord);
var prev = core.CurrentPage;
if (result > 0 && (PreviousSearchResult_ == null || !Equals(PreviousSearchResult_, core.SearchResults[0])))
{
core.CurrentPage = core.SearchResults[0].Page;
PreviousSearchResult_ = core.SearchResults[0];
}
CanvasPolicy.Render(canvas, false);
if (core.CurrentPage != prev)
{
engine.UpdateURL();
}
return(result > 0);
}
/* ----------------------------------------------------------------- */
///
/// FitToPage
///
/// <summary>
/// ウィンドウ（描画領域）に合わせて拡大/縮小を行う．
/// </summary>
///
/* ----------------------------------------------------------------- */
public static double FitToPage(Canvas canvas)
{
if (canvas == null)
{
return(0.0);
}
var engine = canvas.Tag as CanvasEngine;
if (engine == null)
{
return(0.0);
}
var core = engine.Core;
if (core == null)
{
return(0.0);
}
// 横長ならばFitToWidthを、縦長ならばFitToHeightを呼ぶ
if (GetOrientation(canvas) == Orientation.portratit)
{
core.FitToHeight(canvas.Parent.Handle);
}
else
{
core.FitToWidth(canvas.Parent.Handle);
}
core.Zoom = core.Zoom - 1; // 暫定
#if CUBE_ASYNC
CanvasPolicy.AsyncRender(canvas, true);
#else
CanvasPolicy.Render(canvas, true);
#endif
return(core.Zoom);
}