pdftops/FormWidget.h

   1 //========================================================================
   2 //
   3 // FormWidget.h
   4 //
   5 // Copyright 2000 Derek B. Noonburg
   6 //
   7 //========================================================================
   8
   9 #ifndef FORMWIDGET_H
  10 #define FORMWIDGET_H
  11
  12 #ifdef __GNUC__
  13 #pragma interface
  14 #endif
  15
  16 class XRef;
  17 class Gfx;
  18
  19 //------------------------------------------------------------------------
  20 // FormWidget
  21 //------------------------------------------------------------------------
  22
  23 class FormWidget {
  24 public:
  25
  26   FormWidget(XRef *xrefA, Dict *dict);
  27   ~FormWidget();
  28   GBool isOk() { return ok; }
  29
  30   void draw(Gfx *gfx);
  31
  32   // Get appearance object.
  33   Object *getAppearance(Object *obj) { return appearance.fetch(xref, obj); }
  34
  35 private:
  36
  37   XRef *xref;                   // the xref table for this PDF file
  38   Object appearance;            // a reference to the Form XObject stream
  39                                 //   for the normal appearance
  40   double xMin, yMin,            // widget rectangle
  41          xMax, yMax;
  42   GBool ok;
  43 };
  44
  45 //------------------------------------------------------------------------
  46 // FormWidgets
  47 //------------------------------------------------------------------------
  48
  49 class FormWidgets {
  50 public:
  51
  52   // Extract widgets from array of annotations.
  53   FormWidgets(XRef *xref, Object *annots);
  54
  55   ~FormWidgets();
  56
  57   // Iterate through list of widgets.
  58   int getNumWidgets() { return nWidgets; }
  59   FormWidget *getWidget(int i) { return widgets[i]; }
  60
  61 private:
  62
  63   FormWidget **widgets;
  64   int nWidgets;
  65 };
  66
  67 #endif