// This may look like C code, but it is really -*- C++ -*- /*********************************************************** Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts, and the Massachusetts Institute of Technology, Cambridge, Massachusetts. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the names of Digital or MIT not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. C++ interface author: Roman J. Budzianowski - Project Athena MIT ******************************************************************/ #ifndef _XawText_h #define _XawText_h #include #include #include #include /**************************************************************** * * Text widget * ****************************************************************/ /* Parameters: Name Class RepType Default Value ---- ----- ------- ------------- background Background Pixel XtDefaultBackground border BorderColor Pixel XtDefaultForeground borderWidth BorderWidth Dimension 1 destroyCallback Callback Pointer NULL dialogHOffset Margin int 10 dialogVOffset Margin int 10 displayCaret Output Boolean True displayPosition TextPosition int 0 editType EditType XtTextEditType XttextRead height Height Dimension font height insertPosition TextPosition int 0 leftMargin Margin Dimension 2 mappedWhenManaged MappedWhenManaged Boolean True selectTypes SelectTypes Pointer (internal) selection Selection Pointer empty selection sensitive Sensitive Boolean True textSink TextSink Pointer (none) textSource TextSource Pointer (none) width Width Dimension 100 x Position int 0 y Position int 0 */ #define XtEtextScrollNever "never" #define XtEtextScrollWhenNeeded "whenneeded" #define XtEtextScrollAlways "always" #define XtEtextWrapNever "never" #define XtEtextWrapLine "line" #define XtEtextWrapWord "word" #define XtEtextResizeNever "never" #define XtEtextResizeWidth "width" #define XtEtextResizeHeight "height" #define XtEtextResizeBoth "both" #define XtNautoFill "autoFill" #define XtNbottomMargin "bottomMargin" #define XtNdialogHOffset "dialogHOffset" #define XtNdialogVOffset "dialogVOffset" #define XtNdisplayCaret "displayCaret" #define XtNdisplayPosition "displayPosition" #define XtNinsertPosition "insertPosition" #define XtNleftMargin "leftMargin" #define XtNresize "resize" #define XtNrightMargin "rightMargin" #define XtNscrollVertical "scrollVertical" #define XtNscrollHorizontal "scrollHorizontal" #define XtNselectTypes "selectTypes" #define XtNselection "selection" #define XtNtopMargin "topMargin" #define XtNwrap "wrap" #define XtCAutoFill "AutoFill" #define XtCResize "Resize" #define XtCScroll "Scroll" #define XtCSelectTypes "SelectTypes" #define XtCWrap "Wrap" /* Return Error code for XawTextSearch */ #define XawTextSearchError (-12345L) /* Return codes from XawTextReplace */ #define XawReplaceError -1 #define XawEditDone 0 #define XawEditError 1 #define XawPositionError 2 extern Atom FMT8BIT; /* Class record constants */ extern WidgetClass textWidgetClass; extern "C" { extern void XawTextDisplay(Widget); extern void XawTextEnableRedisplay(Widget); extern void XawTextDisableRedisplay(Widget); extern void XawTextSetSelectionArray(Widget, XawTextSelectType* sarray); extern void XawTextGetSelectionPos(Widget, XawTextPosition* begin_return, XawTextPosition* end_return); extern void XawTextSetSource(Widget, Widget source, XawTextPosition position); extern int XawTextReplace(Widget, XawTextPosition start, XawTextPosition end, XawTextBlock* text); extern XawTextPosition XawTextTopPosition(Widget); extern void XawTextSetInsertionPoint(Widget, XawTextPosition position); extern XawTextPosition XawTextGetInsertionPoint(Widget); extern void XawTextUnsetSelection(Widget); extern void XawTextSetSelection(Widget, XawTextPosition left, XawTextPosition right); extern void XawTextInvalidate(Widget, XawTextPosition from, XawTextPosition to); extern Widget XawTextGetSource(Widget); extern XawTextPosition XawTextSearch(Widget, XawTextScanDirection dir, XawTextBlock* text); extern void XawTextDisplayCaret(Widget, Boolean visible); } /**************************************************************** * * Text widget private * ****************************************************************/ #define MAXCUT 30000 /* Maximum number of characters that can be cut. */ #define zeroPosition ((XawTextPosition) 0) extern XtActionsRec textActionsTable[]; extern Cardinal textActionsTableCount; #define LF 0x0a #define CR 0x0d #define TAB 0x09 #define BS 0x08 #define SP 0x20 #define DEL 0x7f #define BSLASH '\\' /* constants that subclasses may want to know */ #define DEFAULT_TEXT_HEIGHT ((Dimension)~0) /* displayable text management data structures */ struct XawTextLineTableEntry { XawTextPosition position; Position y; Dimension textWidth; }; struct XawTextSelection { XawTextPosition left, right; XawTextSelectType type; Atom* selections; int atom_count; int array_size; }; struct XawTextSelectionSalt { struct _XawTextSelectionSalt *next; XawTextSelection s; char *contents; int length; }; /* Line Tables are n+1 long - last position displayed is in last lt entry */ struct XawTextLineTable{ XawTextPosition top; /* Top of the displayed text. */ int lines; /* How many lines in this table. */ XawTextLineTableEntry *info; /* A dynamic array, one entry per line */ }; struct XawTextMargin { Position left, right, top, bottom; }; // ???? #define VMargins(ctx) ( (ctx)->text.margin.top + (ctx)->text.margin.bottom ) #define HMargins(ctx) ( (ctx)->text.margin.left + (ctx)->text.margin.right ) #define IsPositionVisible(ctx, pos) \ (pos >= ctx->text.lt.info[0].position && \ pos < ctx->text.lt.info[ctx->text.lt.lines].position) /* * Search & Replace data structure. */ struct SearchAndReplace { Boolean selection_changed; /* flag so that the selection cannot be changed out from underneath query-replace.*/ Widget search_popup; /* The poppup widget that allows searches.*/ Widget label1; /* The label widgets for the search window. */ Widget label2; Widget left_toggle; /* The left search toggle radioGroup. */ Widget right_toggle; /* The right search toggle radioGroup. */ Widget rep_label; /* The Replace label string. */ Widget rep_text; /* The Replace text field. */ Widget search_text; /* The Search text field. */ Widget rep_one; /* The Replace one button. */ Widget rep_all; /* The Replace all button. */ }; /* Private Text Definitions */ typedef int (*ActionProc)(); struct text_move { int h, v; struct text_move * next; }; /* New fields for the Text widget record */ struct TextPart { /* resources */ Widget source, sink; XawTextPosition insertPos; XawTextSelection s; XawTextSelectType *sarray; /* Array to cycle for selections. */ XawTextSelectionSalt *salt; /* salted away selections */ int options; /* wordbreak, scroll, etc. */ int dialog_horiz_offset; /* position for popup dialog */ int dialog_vert_offset; /* position for popup dialog */ Boolean display_caret; /* insertion pt visible iff T */ Boolean auto_fill; /* Auto fill mode? */ XawTextScrollMode scroll_vert, scroll_horiz; /*what type of scrollbars.*/ XawTextWrapMode wrap; /* The type of wrapping. */ XawTextResizeMode resize; /* what to resize */ XawTextMargin r_margin; /* The real margins. */ /* private state */ XawTextMargin margin; /* The current margins. */ XawTextLineTable lt; XawTextScanDirection extendDir; XawTextSelection origSel; /* the selection being modified */ Time lasttime; /* timestamp of last processed action */ Time time; /* time of last key or button action */ Position ev_x, ev_y; /* x, y coords for key or button action */ Widget vbar, hbar; /* The scroll bars (none = NULL). */ SearchAndReplace * search; /* Search and replace structure. */ Widget file_insert; /* The file insert popup widget. */ XawTextPosition *updateFrom; /* Array of start positions for update. */ XawTextPosition *updateTo; /* Array of end positions for update. */ int numranges; /* How many update ranges there are. */ int maxranges; /* How many ranges we have space for */ XawTextPosition lastPos; /* Last position of source. */ GC gc; Boolean showposition; /* True if we need to show the position. */ Boolean hasfocus; /* TRUE if we currently have input focus.*/ Boolean update_disabled; /* TRUE if display updating turned off */ Boolean single_char; /* Single character replaced. */ XawTextPosition old_insert; /* Last insertPos for batched updates */ short mult; /* Multiplier. */ text_move * copy_area_offsets; /* Text offset area (linked list) */ /* private state, shared w/Source and Sink */ Boolean redisplay_needed; /* in SetValues */ }; /************************************************************* * * Resource types private to Text widget. * *************************************************************/ #define XtRScrollMode "ScrollMode" #define XtRWrapMode "WrapMode" #define XtRResizeMode "ResizeMode" /**************************************************************** * * Full instance record declaration * ****************************************************************/ class TextSrObject; class TextWidget : public SimpleWidget { protected: TextPart text; public: void DisplayText() { XawTextDisplay(this); } void EnableRedisplay() { XawTextEnableRedisplay(this); } void DisableRedisplay() { XawTextDisableRedisplay(this); } void SetSelectionArray(XawTextSelectType* sarray) { XawTextSetSelectionArray(this, sarray);} void GetSelectionPos(XawTextPosition* begin_return, XawTextPosition* end_return) { XawTextGetSelectionPos(this, begin_return, end_return); } void SetSource(Widget source, XawTextPosition position) { XawTextSetSource(this, source, position); } int Replace(XawTextPosition start, XawTextPosition end, XawTextBlock* text) { return XawTextReplace(this, start, end, text); } XawTextPosition TopPosition() { return XawTextTopPosition(this); } void SetInsertionPoint(XawTextPosition position) {XawTextSetInsertionPoint(this, position);} XawTextPosition GetInsertionPoint() { return XawTextGetInsertionPoint(this); } void UnsetSelection() { XawTextUnsetSelection(this); } void SetSelection(XawTextPosition left, XawTextPosition right) { XawTextSetSelection(this, left, right); } void Invalidate(XawTextPosition from, XawTextPosition to) { XawTextInvalidate(this, from, to); } TextSrObject* GetSource() { return (TextSrObject*)XawTextGetSource(this); } XawTextPosition Search(XawTextScanDirection dir, XawTextBlock* text) { return XawTextSearch(this, dir, text); } void DisplayCaret(Boolean visible) { XawTextDisplayCaret(this, visible); } Constructors(Text,text) {} }; #include #include #endif /* _XawText_h */