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Add PrintPreviewDialog etc
This commit is contained in:
haru-s
parent
5bcb907cf1
commit
31f368ba09
2 changed files with 713 additions and 59 deletions
BIN
source/dfl/image/previewprintdialog_toolbar.bmp
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source/dfl/image/previewprintdialog_toolbar.bmp
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After Width: | Height: | Size: 15 KiB |
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@ -14,6 +14,14 @@ private import dfl.commondialog;
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private import dfl.drawing;
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private import dfl.event;
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private import dfl.messagebox;
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private import dfl.control;
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private import dfl.form;
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private import dfl.toolbar;
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private import dfl.imagelist;
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private import dfl.panel;
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private import dfl.label;
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private import dfl.button;
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private import dfl.textbox;
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private import dfl.internal.utf;
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@ -22,6 +30,11 @@ private import core.sys.windows.windows;
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private import std.conv;
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debug
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{
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private import std.stdio;
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}
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///
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enum PrinterUnit
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{
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@ -368,7 +381,7 @@ class PrintRangeEventArgs : EventArgs
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class PrintEventArgs : EventArgs
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{
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bool cancel = false;
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HDC hDC;
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HDC hDC; // TODO: Remove.
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///
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this(HDC hDC)
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@ -387,12 +400,13 @@ class PrintEventArgs : EventArgs
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class PrintPageEventArgs : EventArgs
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{
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bool cancel = false;
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Graphics graphics;
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bool hasMorePage;
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Graphics graphics;
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Rect marginBounds;
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Rect pageBounds;
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PageSettings pageSettings;
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HDC hDC;
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HDC hDC; // TODO: Remove.
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int currentPage;
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///
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@ -402,6 +416,7 @@ class PrintPageEventArgs : EventArgs
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this.marginBounds = marginBounds;
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this.pageBounds = pageBounds;
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this.pageSettings = pageSettings;
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this.hDC = graphics.handle; // TODO: Remove.
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this.currentPage = currentPage;
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}
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}
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@ -423,46 +438,26 @@ class QueryPageSettingsEventArgs : PrintEventArgs
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}
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///
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abstract class PrintController
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interface PrintController
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{
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///
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bool isPreview() const
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{
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return false;
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}
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void onStartPrint(PrintDocument document, PrintEventArgs e);
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///
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int onStartPrint(PrintDocument document, PrintEventArgs e)
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{
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return 0;
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}
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void onEndPrint(PrintDocument document, PrintEventArgs e);
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///
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void onEndPrint(PrintDocument document, PrintEventArgs e)
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{
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}
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Graphics onStartPage(PrintDocument document, PrintPageEventArgs e);
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///
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void onStartPage(PrintDocument document, PrintPageEventArgs e)
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{
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}
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///
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void onEndPage(PrintDocument document, PrintPageEventArgs e)
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{
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}
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void onEndPage(PrintDocument document, PrintPageEventArgs e);
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}
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///
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class StandardPrintController : PrintController
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{
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///
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this()
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{
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}
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///
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override int onStartPrint(PrintDocument document, PrintEventArgs e)
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override void onStartPrint(PrintDocument document, PrintEventArgs e)
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{
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DOCINFO info;
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info.cbSize = info.sizeof;
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@ -473,9 +468,7 @@ class StandardPrintController : PrintController
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info.lpszDocName = document.documentName.ptr;
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info.lpszDatatype = null;
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info.fwType = 0;
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int printJobID = StartDoc(e.hDC, &info);
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assert(printJobID > 0);
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return printJobID;
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StartDoc(e.hDC, &info);
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}
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///
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@ -485,9 +478,10 @@ class StandardPrintController : PrintController
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}
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///
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override void onStartPage(PrintDocument document, PrintPageEventArgs e)
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override Graphics onStartPage(PrintDocument document, PrintPageEventArgs e)
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{
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StartPage(e.hDC);
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return e.graphics;
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}
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///
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@ -515,6 +509,8 @@ class PrintDocument
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///
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void print(HDC hDC)
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{
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this.printerSettings.printRange.reset();
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// Do not change printRange.kind here!
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PrintRangeEventArgs printPageRangeEventArgs = new PrintRangeEventArgs(this.printerSettings.printRange);
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onPrintRange(printPageRangeEventArgs);
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@ -526,51 +522,38 @@ class PrintDocument
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if (printArgs.cancel)
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return;
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int printJobID = printController.onStartPrint(this, printArgs); // Call StartDoc() API
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printController.onStartPrint(this, printArgs); // Call StartDoc() API
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if (printArgs.cancel)
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return;
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int pageCounter;
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PrintPageEventArgs printPageArgs;
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do
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auto walker = new PrintRangeWalker(this.printerSettings.printRange.ranges);
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foreach (int pageCounter; walker)
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{
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SKIP:
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pageCounter++;
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if (this.printerSettings.printRange.ranges[$-1].toPage < pageCounter) // TODO: Don't work when page ranges are not sorted such as 1, 3, 2.
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break;
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bool contains = false;
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foreach (ref const(PrintRange) iter; printerSettings.printRange.ranges)
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{
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if (iter.fromPage <= pageCounter && pageCounter <= iter.toPage)
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{
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contains = true;
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break;
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}
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}
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if (!contains) goto SKIP;
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Graphics g = new Graphics(printArgs.hDC, false);
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Graphics originGraphics = new Graphics(printArgs.hDC, false);
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PageSettings newPageSettings = this.printerSettings.defaultPageSettings.clone();
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QueryPageSettingsEventArgs queryPageSettingsArgs = new QueryPageSettingsEventArgs(hDC, newPageSettings, pageCounter);
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QueryPageSettingsEventArgs queryPageSettingsArgs = new QueryPageSettingsEventArgs(printArgs.hDC, newPageSettings, pageCounter);
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onQueryPageSettings(queryPageSettingsArgs); // Be modified pageSettings of current page by user.
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PageSettings ps = queryPageSettingsArgs.pageSettings;
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Rect marginBounds = ps.bounds; // 1/100 inch unit.
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Rect pageBounds = Rect(0, 0, ps.paperSize.width, ps.paperSize.height); // 1/100 inch unit.
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printPageArgs = new PrintPageEventArgs(g, marginBounds, pageBounds, ps, pageCounter);
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printController.onStartPage(this, printPageArgs); // Call StartPage() API
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printPageArgs = new PrintPageEventArgs(originGraphics, marginBounds, pageBounds, ps, pageCounter);
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printPageArgs.hDC = hDC;
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printPageArgs.graphics = printController.onStartPage(this, printPageArgs); // Call StartPage() API
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printPageArgs.hDC = printPageArgs.graphics.handle; // TODO: Remove.
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if(!printPageArgs.cancel)
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this.onPrintPage(printPageArgs);
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printPageArgs.hDC = hDC; // TODO: Remove.
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printPageArgs.graphics = originGraphics;
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printController.onEndPage(this, printPageArgs); // Call EndPage() API
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if (printPageArgs.cancel)
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break;
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} while (printPageArgs.hasMorePage);
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}
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onEndPrint(printArgs);
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printController.onEndPrint(this, printArgs); // Call EndPrint() API
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@ -649,6 +632,44 @@ struct PrintRange
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}
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}
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///
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class PrintRangeWalker // Forward Range
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{
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private int[] _pages;
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private int _index;
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///
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this(const PrintRange[] ranges)
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{
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for (int i = 0; i < ranges.length; i++)
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{
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for (int p = ranges[i].fromPage; p <= ranges[i].toPage; p++)
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{
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_pages ~= p;
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}
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}
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debug { writeln(_pages); stdout.flush(); }
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}
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///
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bool empty() const
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{
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return _pages.length <= _index;
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}
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///
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int front() const
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{
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return _pages[_index];
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}
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///
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void popFront()
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{
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_index++;
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}
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}
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///
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class PrintRangeSettings
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{
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@ -2002,3 +2023,636 @@ final class PageSetupDialog : CommonDialog
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}
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}
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}
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///
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class PrintPreviewControl : Control
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{
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private PrintDocument _document; ///
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private int _columns; ///
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private int _rows; ///
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private int _startPage; ///
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private bool _autoZoom; ///
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private MemoryGraphics _background; ///
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///
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this(PrintDocument doc)
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in
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{
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assert(doc);
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}
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body
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{
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_document = doc;
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_columns = 1;
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_rows = 0;
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_startPage = 0;
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_autoZoom = true;
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}
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///
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void document(PrintDocument doc)
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in
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{
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assert(doc);
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}
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body
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{
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_document = doc;
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}
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/// ditto
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PrintDocument document()
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{
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return _document;
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}
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///
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void autoZoom(bool b)
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{
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_autoZoom = b;
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}
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/// ditto
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bool autoZoom() const
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{
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return _autoZoom;
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}
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///
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void columns(int col)
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{
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_columns = col;
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}
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/// ditto
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int columns() const
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{
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return _columns;
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}
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///
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void rows(int row)
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{
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_rows = row;
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}
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/// ditto
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int rows() const
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{
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return _rows;
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}
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///
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void startPage(int page)
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{
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_startPage = page;
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}
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/// ditto
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int startPage() const
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{
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return _startPage;
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}
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///
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final void invalidatePreview()
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in
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{
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assert(document);
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}
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body
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{
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PAGESETUPDLG pd;
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pd.lStructSize = pd.sizeof;
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pd.hwndOwner = null;
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pd.hDevMode = null;
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pd.hDevNames = null;
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pd.lpfnPagePaintHook = null;
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pd.Flags = PSD_RETURNDEFAULT;
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BOOL resultOK = PageSetupDlg(&pd);
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if (resultOK)
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{
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DEVMODE* pDevMode = cast(DEVMODE*)GlobalLock(pd.hDevMode);
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scope(exit)
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GlobalUnlock(pDevMode);
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pDevMode.dmPrintQuality = 200; // dpi
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pDevMode.dmYResolution = 200; // dpi
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pDevMode.dmOrientation = {
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if (document.printerSettings.defaultPageSettings.landscape)
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return DMORIENT_LANDSCAPE;
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else
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return DMORIENT_PORTRAIT;
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}();
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pDevMode.dmPaperSize = cast(short)document.printerSettings.defaultPageSettings.paperSize.rawKind;
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pDevMode.dmFields |= DM_PRINTQUALITY | DM_YRESOLUTION | DM_ORIENTATION | DM_PAPERSIZE; // TODO: Need?
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document.printerSettings.setHdevnames(pd.hDevNames);
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document.printerSettings.defaultPageSettings.setHdevmode(pd.hDevMode);
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}
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Rect screenRect = Rect(0, 0, GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN));
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_background = new MemoryGraphics(screenRect.width, screenRect.height);
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_background.fillRectangle(new SolidBrush(Color.gray), screenRect);
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// Print range is always all pages on preview print.
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_document.printerSettings.printRange.kind = PrintRangeKind.ALL_PAGES;
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_document.onPrintRange(new PrintRangeEventArgs(_document.printerSettings.printRange));
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PrintController oldPrintController = _document.printController;
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_document.printController = new PreviewPrintController(this); // TODO: Cross reference.
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_document.print(_background.handle);
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_document.printController = oldPrintController;
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}
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protected override void onHandleCreated(EventArgs e)
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{
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super.onHandleCreated(e);
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// ShowScrollBar(handle, SB_VERT, TRUE);
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// EnableScrollBar(handle, SB_BOTH, ESB_DISABLE_BOTH);
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invalidatePreview();
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invalidate();
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}
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///
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protected override void wndProc(ref Message msg)
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{
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super.wndProc(msg);
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}
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///
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protected override void onGotFocus(EventArgs e)
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{
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super.onGotFocus(e);
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gotFocus(this, e);
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}
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///
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protected override void onLostFocus(EventArgs e)
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{
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super.onLostFocus(e);
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lostFocus(this, e) ;
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}
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///
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protected override void onMouseDown(MouseEventArgs e)
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{
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super.onMouseDown(e);
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mouseDown(this, e);
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}
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static const uint LEFT_MARIGIN = 20; // Dots
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static const uint RIGHT_MARGIN = 20; // Dots
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static const uint TOP_MARGIN = 20; // Dots
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static const uint BOTTOM_MARGIN = 20; // Dots
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static const uint HORIZONTAL_SPAN = 20; // Dots
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static const uint VERTICAL_SPAN = 20; // Dots
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///
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protected override void onPaint(PaintEventArgs e)
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{
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super.onPaint(e);
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if (_background)
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{
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if (this.autoZoom)
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{
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const Rect screenRect = Rect(0, 0, GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN)); // NOTE: Gets MemoryGraphics size as the background DC.
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const Rect paperRect = _toRect(document.printerSettings.defaultPageSettings);
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// TODO: This is incomplete.
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uint h0 = height;
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uint w0 = screenRect.width * height / screenRect.height;
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SetStretchBltMode(_background.handle, STRETCH_DELETESCANS); // SRC
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StretchBlt(
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e.graphics.handle, // DST
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0,
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0,
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w0,
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h0,
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_background.handle, // SRC
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0,
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0,
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screenRect.width,
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screenRect.height,
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SRCCOPY
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);
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}
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else
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{
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_background.copyTo(e.graphics.handle, 0, 0, _background.width, _background.height, 0, 0, SRCCOPY);
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}
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}
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}
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///
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protected override void onPaintBackground(PaintEventArgs e)
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{
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super.onPaintBackground(e);
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paintBackground(this, e);
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}
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//
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Event!(Control, EventArgs) gotFocus; ///
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//
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Event!(Control, EventArgs) lostFocus; ///
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//
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Event!(Control, EventArgs) mouseDown; ///
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//
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Event!(Control, PaintEventArgs) paint; ///
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//
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Event!(Control, EventArgs) paintBackground; ///
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}
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///
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class PrintPreviewDialog : Form
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{
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private PrintPreviewControl _previewControl;
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private ToolBar _toolBar;
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private ToolBarButton _button1;
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private ToolBarButton _button2;
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private ToolBarButton _button3;
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private ToolBarButton _button4;
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private ToolBarButton _button5;
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private ImageList _imageList;
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private Panel _pageSelectPanel;
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private Label _fromPageLabel;
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private TextBox _fromPage;
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private Button _forwardButton;
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private Button _backButton;
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///
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this(PrintDocument doc)
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in
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{
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assert(doc);
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}
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body
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{
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this.text = "Print Preview";
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this.width = 1024;
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this.height = 960;
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_toolBar = new ToolBar();
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_toolBar.dock = DockStyle.TOP;
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_toolBar.style = ToolBarStyle.NORMAL;
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_toolBar.parent = this;
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_imageList = new ImageList;
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_imageList.imageSize = Size(32,32);
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_imageList.transparentColor = Color.red;
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import std.path;
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string bmpPath = dirName(__FILE__) ~ r"\image\previewprintdialog_toolbar.bmp";
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_imageList.images.addStrip(new Bitmap(bmpPath));
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_toolBar.imageList = _imageList;
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_button1 = new ToolBarButton("Print...");
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_button1.style = ToolBarButtonStyle.PUSH_BUTTON;
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_button1.imageIndex = 0;
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_toolBar.buttons.add(_button1);
|
||||
|
||||
_button2 = new ToolBarButton("1x1");
|
||||
_button2.style = ToolBarButtonStyle.PUSH_BUTTON;
|
||||
_button2.imageIndex = 1;
|
||||
_toolBar.buttons.add(_button2);
|
||||
|
||||
_button3 = new ToolBarButton("2x1");
|
||||
_button3.style = ToolBarButtonStyle.PUSH_BUTTON;
|
||||
_button3.imageIndex = 2;
|
||||
_toolBar.buttons.add(_button3);
|
||||
|
||||
_button4 = new ToolBarButton("2x2");
|
||||
_button4.style = ToolBarButtonStyle.PUSH_BUTTON;
|
||||
_button4.imageIndex = 3;
|
||||
_toolBar.buttons.add(_button4);
|
||||
|
||||
_button5 = new ToolBarButton("Fit");
|
||||
_button5.style = ToolBarButtonStyle.TOGGLE_BUTTON;
|
||||
_button5.pushed = true; // Initial mode is "Fit".
|
||||
_button5.imageIndex = 4;
|
||||
_toolBar.buttons.add(_button5);
|
||||
|
||||
_toolBar.buttonClick ~= (ToolBar tb, ToolBarButtonClickEventArgs e) {
|
||||
if (e.button is _button1)
|
||||
{
|
||||
PrintDialog printDialog = new PrintDialog(doc);
|
||||
DialogResult r = printDialog.showDialog();
|
||||
if (r == dialogResult.OK)
|
||||
{
|
||||
// Do nothing.
|
||||
}
|
||||
}
|
||||
else if (e.button is _button2)
|
||||
{
|
||||
_previewControl.rows = 1;
|
||||
_previewControl.columns = 1;
|
||||
_previewControl.invalidatePreview();
|
||||
_previewControl.invalidate();
|
||||
}
|
||||
else if (e.button is _button3)
|
||||
{
|
||||
_previewControl.rows = 2;
|
||||
_previewControl.columns = 1;
|
||||
_previewControl.invalidatePreview();
|
||||
_previewControl.invalidate();
|
||||
}
|
||||
else if (e.button is _button4)
|
||||
{
|
||||
_previewControl.rows = 2;
|
||||
_previewControl.columns = 2;
|
||||
_previewControl.invalidatePreview();
|
||||
_previewControl.invalidate();
|
||||
}
|
||||
else if (e.button is _button5)
|
||||
{
|
||||
_previewControl.autoZoom = !_previewControl.autoZoom;
|
||||
_previewControl.invalidatePreview();
|
||||
_previewControl.invalidate();
|
||||
}
|
||||
else
|
||||
assert(0);
|
||||
};
|
||||
|
||||
_pageSelectPanel = new Panel();
|
||||
_pageSelectPanel.height = 24;
|
||||
_pageSelectPanel.dock = DockStyle.TOP;
|
||||
_pageSelectPanel.parent = this;
|
||||
|
||||
_fromPageLabel = new Label();
|
||||
_fromPageLabel.text = "Page ";
|
||||
_fromPageLabel.width = 50;
|
||||
_fromPageLabel.textAlign = ContentAlignment.MIDDLE_RIGHT;
|
||||
_fromPageLabel.dock = DockStyle.LEFT;
|
||||
_fromPageLabel.parent = _pageSelectPanel;
|
||||
|
||||
_fromPage = new TextBox();
|
||||
_fromPage.width = 50;
|
||||
_fromPage.dock = DockStyle.LEFT;
|
||||
_fromPage.keyPress ~= (Control c, KeyEventArgs e)
|
||||
{
|
||||
if (e.keyCode == Keys.ENTER)
|
||||
{
|
||||
int oldPage = _previewControl.startPage;
|
||||
int newPage;
|
||||
try
|
||||
{
|
||||
newPage = to!int(_fromPage.text) - 1;
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
newPage = oldPage; // undo
|
||||
}
|
||||
|
||||
if (newPage < 0)
|
||||
newPage = oldPage; // undo
|
||||
|
||||
_previewControl.startPage = newPage;
|
||||
_fromPage.text = to!string(newPage + 1);
|
||||
|
||||
if (oldPage != newPage)
|
||||
{
|
||||
_previewControl.invalidatePreview();
|
||||
_previewControl.invalidate();
|
||||
}
|
||||
}
|
||||
};
|
||||
_fromPage.parent = _pageSelectPanel;
|
||||
|
||||
_backButton = new Button;
|
||||
_backButton.text = "<";
|
||||
_backButton.width = 32;
|
||||
_backButton.dock = DockStyle.LEFT;
|
||||
_backButton.click ~= (Control c, EventArgs e)
|
||||
{
|
||||
int oldPage = _previewControl.startPage;
|
||||
int newPage = _previewControl.startPage - _previewControl.rows * _previewControl.columns;
|
||||
if (newPage < 0)
|
||||
newPage = 0;
|
||||
_previewControl.startPage = newPage;
|
||||
_fromPage.text = to!string(_previewControl.startPage + 1);
|
||||
if (oldPage != newPage)
|
||||
{
|
||||
_previewControl.invalidatePreview();
|
||||
_previewControl.invalidate();
|
||||
}
|
||||
};
|
||||
_backButton.parent = _pageSelectPanel;
|
||||
|
||||
_forwardButton = new Button;
|
||||
_forwardButton.text = ">";
|
||||
_forwardButton.width = 32;
|
||||
_forwardButton.dock = DockStyle.LEFT;
|
||||
_forwardButton.click ~= (Control c, EventArgs e)
|
||||
{
|
||||
int oldPage = _previewControl.startPage;
|
||||
int newPage = _previewControl.startPage + _previewControl.rows * _previewControl.columns;
|
||||
_previewControl.startPage = newPage;
|
||||
_fromPage.text = to!string(_previewControl.startPage + 1);
|
||||
if (oldPage != newPage)
|
||||
{
|
||||
_previewControl.invalidatePreview();
|
||||
_previewControl.invalidate();
|
||||
}
|
||||
};
|
||||
_forwardButton.parent = _pageSelectPanel;
|
||||
|
||||
_previewControl = new PrintPreviewControl(doc);
|
||||
_previewControl.resizeRedraw = true;
|
||||
_previewControl.backColor = Color.gray;
|
||||
_previewControl.dock = DockStyle.FILL;
|
||||
_previewControl.rows = 1; // Single page view
|
||||
_previewControl.columns = 1; // ditto
|
||||
_previewControl.autoZoom = true; // Initial mode is "Fit".
|
||||
_previewControl.startPage = 0;
|
||||
_previewControl.parent = this;
|
||||
|
||||
_fromPage.text = to!string(_previewControl.startPage + 1);
|
||||
}
|
||||
|
||||
///
|
||||
void document(PrintDocument doc)
|
||||
in
|
||||
{
|
||||
assert(doc);
|
||||
assert(_previewControl);
|
||||
}
|
||||
body
|
||||
{
|
||||
_previewControl.document = doc;
|
||||
}
|
||||
/// ditto
|
||||
PrintDocument document()
|
||||
in
|
||||
{
|
||||
assert(_previewControl);
|
||||
}
|
||||
body
|
||||
{
|
||||
return _previewControl.document;
|
||||
}
|
||||
|
||||
///
|
||||
protected override void wndProc(ref Message msg)
|
||||
{
|
||||
super.wndProc(msg);
|
||||
}
|
||||
}
|
||||
|
||||
///
|
||||
// final class PreviewPageInfo
|
||||
// {
|
||||
// private Image _image;
|
||||
// private Size _size; // 1/100 inch unit.
|
||||
|
||||
// ///
|
||||
// this(Image image, Size size)
|
||||
// {
|
||||
// _image = image;
|
||||
// _size = size;
|
||||
// }
|
||||
|
||||
// ///
|
||||
// Image image() // getter
|
||||
// {
|
||||
// return _image;
|
||||
// }
|
||||
|
||||
// /// Gets the size of the printed page, in 1/100 inch unit.
|
||||
// Size physicalSize() const // getter
|
||||
// {
|
||||
// return _size;
|
||||
// }
|
||||
// }
|
||||
|
||||
///
|
||||
class PreviewPrintController : PrintController
|
||||
{
|
||||
private PrintPreviewControl _previewControl; ///
|
||||
private Graphics _pageGraphics; ///
|
||||
|
||||
///
|
||||
this(PrintPreviewControl previewControl)
|
||||
in
|
||||
{
|
||||
assert(previewControl);
|
||||
}
|
||||
body
|
||||
{
|
||||
_previewControl = previewControl;
|
||||
}
|
||||
|
||||
///
|
||||
// PreviewPageInfo[] getPreviewPageInfo()
|
||||
// {
|
||||
// assert(0);
|
||||
// }
|
||||
|
||||
///
|
||||
override void onStartPrint(PrintDocument document, PrintEventArgs e)
|
||||
{
|
||||
// Do nothing.
|
||||
}
|
||||
|
||||
///
|
||||
override void onEndPrint(PrintDocument document, PrintEventArgs e)
|
||||
{
|
||||
// Do nothing.
|
||||
}
|
||||
|
||||
///
|
||||
override Graphics onStartPage(PrintDocument document, PrintPageEventArgs e)
|
||||
{
|
||||
Rect paperRect = _toRect(document.printerSettings.defaultPageSettings);
|
||||
_pageGraphics = {
|
||||
// Be dispose() called in onEntPage().
|
||||
if (e.pageBounds.width <= e.pageBounds.height)
|
||||
return new MemoryGraphics(paperRect.width, paperRect.height, e.hDC);
|
||||
else
|
||||
return new MemoryGraphics(paperRect.height, paperRect.width, e.hDC); // TODO: Implement correctly.
|
||||
}();
|
||||
// Draw the form of paper.
|
||||
_pageGraphics.fillRectangle(Color.white, paperRect);
|
||||
// Draw the border of paper.
|
||||
_pageGraphics.drawRectangle(new Pen(Color.black), paperRect);
|
||||
return _pageGraphics;
|
||||
}
|
||||
|
||||
///
|
||||
override void onEndPage(PrintDocument document, PrintPageEventArgs e)
|
||||
{
|
||||
// Draw the current page number.
|
||||
const string currentPageString = to!string(e.currentPage);
|
||||
Font font = new Font("MS Gothic", 100/+pt+/ * e.pageSettings.printerResolution.y / 72);
|
||||
_pageGraphics.drawText(currentPageString, font, Color.white, Rect(20, 20, 1000, 1000));
|
||||
_pageGraphics.drawText(currentPageString, font, Color.black, Rect(0, 0, 1000, 1000));
|
||||
|
||||
// Draw the main image.
|
||||
const Rect screenRect = Rect(0, 0, GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN)); // NOTE: Gets MemoryGraphics size as the background DC.
|
||||
const Rect paperRect = _toRect(document.printerSettings.defaultPageSettings);
|
||||
const uint row = (e.currentPage - _previewControl.startPage - 1) % _previewControl.rows;
|
||||
const uint col = (e.currentPage - _previewControl.startPage - 1) / _previewControl.rows;
|
||||
|
||||
// Size that fit Right side.
|
||||
const uint w1 = (screenRect.width - PrintPreviewControl.LEFT_MARIGIN - PrintPreviewControl.RIGHT_MARGIN - (_previewControl.rows - 1) * PrintPreviewControl.HORIZONTAL_SPAN) / _previewControl.rows;
|
||||
const uint h1 = paperRect.height * w1 / paperRect.width;
|
||||
// Size that fit Bottom side.
|
||||
const uint h2 = (screenRect.height - PrintPreviewControl.TOP_MARGIN - PrintPreviewControl.BOTTOM_MARGIN - (_previewControl.columns - 1) * PrintPreviewControl.VERTICAL_SPAN) / _previewControl.columns;
|
||||
const uint w2 = paperRect.width * h2 / paperRect.height;
|
||||
|
||||
uint w0;
|
||||
uint h0;
|
||||
if (PrintPreviewControl.LEFT_MARIGIN + PrintPreviewControl.RIGHT_MARGIN + _previewControl.rows * w1 + (_previewControl.rows - 1) * PrintPreviewControl.HORIZONTAL_SPAN <= screenRect.width)
|
||||
{
|
||||
if (PrintPreviewControl.TOP_MARGIN + PrintPreviewControl.BOTTOM_MARGIN + _previewControl.columns * h1 + (_previewControl.columns - 1) * PrintPreviewControl.VERTICAL_SPAN <= screenRect.height)
|
||||
{
|
||||
w0 = w1;
|
||||
h0 = h1;
|
||||
}
|
||||
else
|
||||
{
|
||||
// Bottom side is over size.
|
||||
w0 = w2;
|
||||
h0 = h2;
|
||||
}
|
||||
}
|
||||
else if (PrintPreviewControl.TOP_MARGIN + PrintPreviewControl.BOTTOM_MARGIN + _previewControl.columns * h2 + (_previewControl.columns - 1) * PrintPreviewControl.VERTICAL_SPAN <= screenRect.height)
|
||||
{
|
||||
if (PrintPreviewControl.LEFT_MARIGIN + PrintPreviewControl.RIGHT_MARGIN + _previewControl.rows * w2 + (_previewControl.rows - 1) * PrintPreviewControl.HORIZONTAL_SPAN <= screenRect.width)
|
||||
{
|
||||
w0 = w2;
|
||||
h0 = h2;
|
||||
}
|
||||
else
|
||||
{
|
||||
// Right side is over size.
|
||||
w0 = w1;
|
||||
h0 = h1;
|
||||
}
|
||||
}
|
||||
|
||||
SetStretchBltMode(_pageGraphics.handle, STRETCH_DELETESCANS); // SRC
|
||||
StretchBlt(
|
||||
e.hDC, // DST
|
||||
PrintPreviewControl.LEFT_MARIGIN + row * (w0 + PrintPreviewControl.HORIZONTAL_SPAN),
|
||||
PrintPreviewControl.TOP_MARGIN + col * (h0 + PrintPreviewControl.VERTICAL_SPAN),
|
||||
w0,
|
||||
h0,
|
||||
_pageGraphics.handle, // SRC
|
||||
0,
|
||||
0,
|
||||
paperRect.width,
|
||||
paperRect.height,
|
||||
SRCCOPY
|
||||
);
|
||||
_pageGraphics.dispose(); // Created in onStartPage().
|
||||
|
||||
// Preview-print is end.
|
||||
if (row == _previewControl.rows - 1 && col == _previewControl.columns - 1)
|
||||
e.cancel = true;
|
||||
}
|
||||
}
|
||||
|
||||
///
|
||||
private Rect _toRect(PageSettings page)
|
||||
{
|
||||
return Rect(
|
||||
(page.bounds.x - page.margins.left) * page.printerResolution.x / 100,
|
||||
(page.bounds.y - page.margins.top) * page.printerResolution.y / 100,
|
||||
(page.bounds.x + page.bounds.width + page.margins.right) * page.printerResolution.x / 100,
|
||||
(page.bounds.y + page.bounds.height + page.margins.bottom) * page.printerResolution.y / 100
|
||||
);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue