arospdf/xpdf/XPDFCore.h

   1 //========================================================================
   2 //
   3 // XPDFCore.h
   4 //
   5 // Copyright 2002-2003 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 #ifndef XPDFCORE_H
  10 #define XPDFCORE_H
  11
  12 #include <aconf.h>
  13
  14 #ifdef USE_GCC_PRAGMAS
  15 #pragma interface
  16 #endif
  17
  18 #include "gtypes.h"
  19 #include "gfile.h" // for time_t
  20 #include "SplashTypes.h"
  21 #include "PDFCore.h"
  22
  23 class GString;
  24 class BaseStream;
  25 class PDFDoc;
  26 class LinkAction;
  27
  28 //------------------------------------------------------------------------
  29
  30 #define xMaxRGBCube 6           // max size of RGB color cube
  31
  32 //------------------------------------------------------------------------
  33 // XPDFCore
  34 //------------------------------------------------------------------------
  35
  36 class XPDFCore: public PDFCore {
  37 public:
  38
  39   // Create viewer core inside <parentWidgetA>.
  40   XPDFCore(//Widget shellA, Widget parentWidgetA,
  41            SplashColorPtr paperColorA, Gulong paperPixelA,
  42            Gulong mattePixelA, GBool fullScreenA, GBool reverseVideoA,
  43            GBool installCmap, int rgbCubeSizeA);
  44
  45   ~XPDFCore();
  46
  47   //----- loadFile / displayPage / displayDest
  48
  49   // Load a new file.  Returns pdfOk or error code.
  50   virtual int loadFile(GString *fileName, GString *ownerPassword = NULL,
  51                        GString *userPassword = NULL);
  52
  53   // Load a new file, via a Stream instead of a file name.  Returns
  54   // pdfOk or error code.
  55   virtual int loadFile(BaseStream *stream, GString *ownerPassword = NULL,
  56                        GString *userPassword = NULL);
  57
  58   // Load an already-created PDFDoc xObject.
  59   virtual void loadDoc(PDFDoc *docA);
  60
  61   // Resize the window to fit page <pg> of the current document.
  62   void resizeToPage(int pg);
  63
  64   // Update the display, given the specified parameters.
  65   virtual void update(int topPageA, int scrollXA, int scrollYA,
  66                       double zoomA, int rotateA,
  67                       GBool force, GBool addToHist);
  68
  69   //----- page/position changes
  70
  71   virtual GBool gotoNextPage(int inc, GBool top);
  72   virtual GBool gotoPrevPage(int dec, GBool top, GBool bottom);
  73   virtual GBool goForward();
  74   virtual GBool goBackward();
  75
  76   //----- selection
  77
  78   void startSelection(int wx, int wy);
  79   void endSelection(int wx, int wy);
  80   void copySelection();
  81   void startPan(int wx, int wy);
  82   void endPan(int wx, int wy);
  83
  84   //----- hyperlinks
  85
  86   void doAction(LinkAction *action);
  87   LinkAction *getLinkAction() { return linkAction; }
  88   GString *mungeURL(GString *url);
  89
  90   //----- find
  91
  92   virtual GBool find(char *s, GBool caseSensitive,
  93                      GBool next, GBool backward, GBool onePageOnly);
  94   virtual GBool findU(Unicode *u, int len, GBool caseSensitive,
  95                       GBool next, GBool backward, GBool onePageOnly);
  96
  97   //----- simple modal dialogs
  98
  99   GBool doQuestionDialog(char *title, GString *msg);
 100   void doInfoDialog(char *title, GString *msg);
 101   void doErrorDialog(char *title, GString *msg);
 102
 103   //----- password dialog
 104
 105   GString *getPassword();
 106
 107   //----- misc access
 108
 109   //Widget getWidget() { return scrolledWin; }
 110   //Widget getDrawAreaWidget() { return drawArea; }
 111   virtual void setBusyCursor(GBool busy);
 112   //Cursor getBusyCursor() { return busyCursor; }
 113   void takeFocus();
 114   void enableHyperlinks(GBool on) { hyperlinksEnabled = on; }
 115   GBool getHyperlinksEnabled() { return hyperlinksEnabled; }
 116   void enableSelect(GBool on) { selectEnabled = on; }
 117   GBool getFullScreen() { return fullScreen; }
 118
 119 private:
 120
 121   virtual GBool checkForNewFile();
 122
 123   //----- hyperlinks
 124   void runCommand(GString *cmdFmt, GString *arg);
 125
 126   //----- selection
 127 /*  static Boolean convertSelectionCbk(Widget widget, Atom *selection,
 128                                      Atom *target, Atom *type,
 129                                      XtPointer *value, unsigned long *length,
 130                                      int *format);
 131 */
 132   //----- GUI code
 133   void setupX(GBool installCmap, int rgbCubeSizeA);
 134   void initWindow();
 135
 136   virtual PDFCoreTile *newTile(int xDestA, int yDestA);
 137   virtual void updateTileData(PDFCoreTile *tileA, int xSrc, int ySrc,
 138                               int width, int height, GBool composited);
 139   virtual void redrawRect(PDFCoreTile *tileA, int xSrc, int ySrc,
 140                           int xDest, int yDest, int width, int height,
 141                           GBool composited);
 142   virtual void updateScrollbars();
 143   //void setCursor(Cursor cursor);
 144   GBool doDialog(int type, GBool hasCancel,
 145                  char *title, GString *msg);
 146   /*static void dialogOkCbk(Widget widget, XtPointer ptr,
 147                           XtPointer callData);
 148   static void dialogCancelCbk(Widget widget, XtPointer ptr,
 149                               XtPointer callData);*/
 150   void initPasswordDialog();
 151   /*static void passwordTextVerifyCbk(Widget widget, XtPointer ptr,
 152                                     XtPointer callData);
 153   static void passwordOkCbk(Widget widget, XtPointer ptr,
 154                             XtPointer callData);
 155   static void passwordCancelCbk(Widget widget, XtPointer ptr,
 156                                 XtPointer callData);
 157   */
 158   Gulong paperPixel;
 159   Gulong mattePixel;
 160   //~unimp: move fullScreen into PDFCore?
 161   GBool fullScreen;
 162
 163   //Display *display;
 164   int screenNum;
 165   //Visual *visual;
 166   //Colormap colormap;
 167   Guint depth;                  // visual depth
 168   GBool trueColor;              // set if using a TrueColor visual
 169   int rDiv, gDiv, bDiv;         // RGB right shifts (for TrueColor)
 170   int rShift, gShift, bShift;   // RGB left shifts (for TrueColor)
 171   int rgbCubeSize;              // size of color cube (for non-TrueColor)
 172   Gulong                        // color cube (for non-TrueColor)
 173     colors[xMaxRGBCube * xMaxRGBCube * xMaxRGBCube];
 174
 175   /*Widget shell;                       // top-level shell containing the widget
 176   Widget parentWidget;          // parent widget (not created by XPDFCore)
 177   Widget scrolledWin;
 178   Widget hScrollBar;
 179   Widget vScrollBar;
 180   Widget drawAreaFrame;
 181   Widget drawArea;*/
 182   //Cursor busyCursor, linkCursor, selectCursor;
 183   //Cursor currentCursor;
 184   //GC drawAreaGC;              // GC for blitting into drawArea
 185
 186   static GString *currentSelection;  // selected text
 187   static XPDFCore *currentSelectionOwner;
 188   //static Atom targetsAtom;
 189
 190   GBool panning;
 191   int panMX, panMY;
 192
 193   time_t modTime;               // last modification time of PDF file
 194
 195   LinkAction *linkAction;       // mouse cursor is over this link
 196
 197   /*XPDFUpdateCbk updateCbk;
 198   void *updateCbkData;
 199   XPDFActionCbk actionCbk;
 200   void *actionCbkData;
 201   XPDFKeyPressCbk keyPressCbk;
 202   void *keyPressCbkData;
 203   XPDFMouseCbk mouseCbk;
 204   void *mouseCbkData;*/
 205
 206   GBool hyperlinksEnabled;
 207   GBool selectEnabled;
 208
 209   int dialogDone;
 210
 211   /*Widget passwordDialog;
 212   Widget passwordText;*/
 213   GString *password;
 214 };
 215
 216 #endif