xpdftreep.h

这是一个做pdf阅读器的源代码文件,是大家学习阅读器资料的很好参考

//========================================================================
//
// XPDFTreeP.h
//
// Copyright 2002-2003 Glyph & Cog, LLC
//
//========================================================================

#ifndef XPDFTREEP_H
#define XPDFTREEP_H

#include <Xm/ManagerP.h>
#include "XPDFTree.h"

extern "C" {

typedef void (*XPDFLayoutProc)(Widget widget, Widget instigator);
typedef void (*XPDFCalcSizeProc)(Widget widget, Widget instigator,
				 Dimension *totalWidth,
				 Dimension *totalHeight);
typedef Boolean (*XPDFNeedRelayoutProc)(Widget oldWidget, Widget newWidget);

#define XPDFInheritCreateGC ((XtWidgetProc)_XtInherit)
#define XPDFInheritDestroyGC ((XtWidgetProc)_XtInherit)
#define XPDFInheritLayout ((XPDFLayoutProc)_XtInherit)
#define XPDFInheritCalcSize ((XPDFCalcSizeProc)_XtInherit)
#define XPDFInheritNeedRelayout ((XPDFNeedRelayoutProc)_XtInherit)

typedef struct {
  XtWidgetProc createGC;
  XtWidgetProc destroyGC;
  XPDFLayoutProc layout;
  XPDFCalcSizeProc calcSize;
  XPDFNeedRelayoutProc needRelayout;
  XtPointer extension;
} XPDFTreeClassPart;

typedef struct _XPDFTreeClassRec {
  CoreClassPart coreClass;
  CompositeClassPart compositeClass;
  ConstraintClassPart constraintClass;
  XmManagerClassPart managerClass;
  XPDFTreeClassPart treeClass;
} XPDFTreeClassRec;

externalref XPDFTreeClassRec xpdfTreeClassRec;

typedef struct _XPDFTreeEntry XPDFTreeEntry;

typedef struct {
  Dimension marginWidth;
  Dimension marginHeight;
  XtCallbackList selectCallback;
  GC plainGC;
  GC dottedGC;
  XPDFTreeEntry *root;
  int redrawY;
} XPDFTreePart;

typedef struct _XPDFTreeRec {
  CorePart core;
  CompositePart composite;
  ConstraintPart constraint;
  XmManagerPart manager;
  XPDFTreePart tree;
} XPDFTreeRec;

#define XPDFTreeIndex (XmManagerIndex + 1)

typedef struct _XPDFTreeConstraintPart {
  Widget entryParent;
  Boolean entryExpanded;
  int entryPosition;
  XPDFTreeEntry *e;
} XPDFTreeConstraintPart, *XPDFTreeConstraint;

typedef struct _XPDFTreeConstraintRec {
  XmManagerConstraintPart manager;
  XPDFTreeConstraintPart tree;
} XPDFTreeConstraintRec, *XPDFTreeConstraintPtr;

#define XPDFTreeCPart(w) \
  (&((XPDFTreeConstraintPtr)(w)->core.constraints)->tree)

} // extern "C"

#endif