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* sumatrapdf - vendor import * everything compiles (libjpeg, poppler, fitz, sumatrapdf) * does NOT link (remove the comment tags in the parent directory.rbuild file (rosapps dir) to build it) svn path=/trunk/; revision=29295
115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
/* Copyright Krzysztof Kowalczyk 2006-2007
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License: GPLv2 */
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#ifndef _DISPLAY_MODEL_SPLASH_H_
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#define _DISPLAY_MODEL_SPLASH_H_
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/* How to think of display logic: physical screen of size
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drawAreaSize is a window into (possibly much larger)
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total area (canvas) of size canvasSize.
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In DM_SINGLE_PAGE mode total area is the size of currently displayed page
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given current zoomLovel and rotation.
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In DM_CONTINUOUS mode total area consist of all pages rendered sequentially
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with a given zoomLevel and rotation. totalAreaDy is the sum of heights
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of all pages plus spaces between them and totalAreaDx is the size of
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the widest page.
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A possible configuration could look like this:
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-----------------------------------
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| ------------- |
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| | screen | |
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| | i.e. | |
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| | drawArea | |
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| ------------- |
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| canvas |
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-----------------------------------
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We calculate the total area size and position of each page we display on the
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canvas. Canvas has to be >= draw area.
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Changing zoomLevel or rotation requires recalculation of total area and
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position of pdf pages in it.
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We keep the offset of draw area relative to total area. The offset changes
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due to scrolling (with keys or using scrollbars).
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To draw we calculate which part of each page overlaps draw area, we render
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those pages to a bitmap and display those bitmaps.
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*/
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#include "DisplayState.h"
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#include "DisplayModel.h"
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class GooString;
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class Link;
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class LinkDest;
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class LinkGoTo;
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class LinkGoToR;
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class LinkLaunch;
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class LinkNamed;
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class LinkURI;
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class Links;
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class PDFDoc;
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class SplashBitmap;
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class TextOutputDev;
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class TextPage;
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class UGooString;
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/* Information needed to drive the display of a given PDF document on a screen.
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You can think of it as a model in the MVC pardigm.
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All the display changes should be done through changing this model via
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API and re-displaying things based on new display information */
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class DisplayModelSplash : public DisplayModel
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{
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public:
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DisplayModelSplash(DisplayMode displayMode);
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virtual ~DisplayModelSplash();
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PdfEnginePoppler * pdfEnginePoppler() { return (PdfEnginePoppler*)pdfEngine(); }
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virtual void handleLink(PdfLink *pdfLink);
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TextPage * GetTextPage(int pageNo);
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void EnsureSearchHitVisible();
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void handleLinkGoTo(LinkGoTo *linkGoTo);
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void handleLinkGoToR(LinkGoToR *linkGoToR);
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void handleLinkURI(LinkURI *linkURI);
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void handleLinkLaunch(LinkLaunch* linkLaunch);
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void handleLinkNamed(LinkNamed *linkNamed);
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BOOL CanGoToNextPage();
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BOOL CanGoToPrevPage();
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void FindInit(int startPageNo);
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BOOL FindNextForward();
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BOOL FindNextBackward();
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void FreeTextPages(void);
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void RecalcLinks(void);
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void GoToDest(LinkDest *linkDest);
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void GoToNamedDest(UGooString *dest);
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void FreeLinks(void);
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virtual int getTextInRegion(int pageNo, RectD *region, unsigned short *buf, int buflen);
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virtual void cvtUserToScreen(int pageNo, double *x, double *y);
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virtual void cvtScreenToUser(int *pageNo, double *x, double *y);
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public:
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PDFDoc * pdfDoc;
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};
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DisplayModelSplash *DisplayModelSplash_CreateFromFileName(const char *fileName,
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SizeD totalDrawAreaSize,
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int scrollbarXDy, int scrollbarYDx,
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DisplayMode displayMode, int startPage,
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WindowInfo *win);
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#endif
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