322 lines
14 KiB
C
322 lines
14 KiB
C
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/*++ BUILD Version: 0001
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*
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* WOW v1.0
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*
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* Copyright (c) 1991, Microsoft Corporation
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*
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* EDIT.H
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*
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* History:
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* Created 28-May-1991 by Jeff Parsons (jeffpar)
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* Copied from WIN31 and edited (as little as possible) for WOW16
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--*/
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/****************************************************************************/
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/* */
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/* EDIT.H - */
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/* */
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/* Edit Control Defines and Procedures */
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/* */
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/****************************************************************************/
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#include "combcom.h"
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/* NOTE: Text handle is sized as multiple of this constant
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* (should be power of 2).
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*/
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#define CCHALLOCEXTRA 0x20
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/* Maximum width in pixels for a line/rectangle */
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#define MAXPIXELWIDTH 30000
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/* Limit multiline edit controls to at most 1024 characters on a single line.
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* We will force a wrap if the user exceeds this limit.
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*/
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#define MAXLINELENGTH 1024
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#define ES_FMTMASK 0x00000003L
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/* Allow an initial maximum of 30000 characters in all edit controls since
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* some apps will run into unsigned problems otherwise. If apps know about
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* the 64K limit, they can set the limit themselves.
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*/
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#define MAXTEXT 30000
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#define BACKSPACE 0x08
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#define TAB 0x09
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/* Key modifiers which have been pressed. Code in KeyDownHandler and
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CharHandler depend on these exact values. */
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#define NONEDOWN 0 /* Neither shift nor control down */
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#define CTRLDOWN 1 /* Control key only down */
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#define SHFTDOWN 2 /* Shift key only down */
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#define SHCTDOWN 3 /* Shift and control keys down = CTRLDOWN + SHFTDOWN */
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#define NOMODIFY 4 /* Neither shift nor control down */
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/* Types of undo supported in this ped */
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#define UNDO_NONE 0 /* We can't undo the last operation. */
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#define UNDO_INSERT 1 /* We can undo the user's insertion of characters */
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#define UNDO_DELETE 2 /* We can undo the user's deletion of characters */
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typedef struct tagED
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{
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HANDLE hText; /* Block of text we are editing */
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ICH cchAlloc; /* Number of chars we have allocated for hText
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*/
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ICH cchTextMax; /* Max number bytes allowed in edit control
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*/
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ICH cch; /* Current number of bytes of actual text
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*/
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int cLines; /* Number of lines of text */
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ICH ichMinSel; /* Selection extent. MinSel is first selected
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char */
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ICH ichMaxSel; /* MaxSel is first unselected character */
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ICH ichCaret; /* Caret location. Caret is on left side of
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char */
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int iCaretLine; /* The line the caret is on. So that if word
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* wrapping, we can tell if the caret is at end
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* of a line of at beginning of next line...
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*/
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ICH screenStart; /* Index of left most character displayed on
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* screen for sl ec and index of top most line
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* for multiline edit controls
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*/
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int ichLinesOnScreen; /* Number of lines we can display on screen */
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WORD xOffset; /* x (horizontal) scroll position in pixels
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* (for multiline text horizontal scroll bar)
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*/
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WORD charPasswordChar; /* If non null, display this character instead
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* of the real text. So that we can implement
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* hidden text fields.
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*/
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WORD cPasswordCharWidth;/* Width of password char */
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HWND hwnd; /* Window for this edit control */
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RECT rcFmt; /* Client rectangle */
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HWND hwndParent; /* Parent of this edit control window */
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/* These vars allow us to automatically scroll
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* when the user holds the mouse at the bottom
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* of the multiline edit control window.
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*/
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POINT ptPrevMouse; /* Previous point for the mouse for system
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* timer.
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*/
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WORD prevKeys; /* Previous key state for the mouse */
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WORD fSingle : 1; /* Single line edit control? (or multiline) */
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WORD fNoRedraw : 1; /* Redraw in response to a change? */
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WORD fMouseDown : 1; /* Is mouse button down? when moving mouse */
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WORD fFocus : 1; /* Does ec have the focus ? */
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WORD fDirty : 1; /* Modify flag for the edit control */
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WORD fDisabled : 1; /* Window disabled? */
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WORD fNonPropFont : 1; /* Fixed width font? */
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WORD fBorder : 1; /* Draw a border? */
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WORD fAutoVScroll : 1; /* Automatically scroll vertically */
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WORD fAutoHScroll : 1; /* Automatically scroll horizontally */
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WORD fNoHideSel : 1; /* Hide sel when we lose focus? */
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#ifdef FE_SB
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WORD fDBCS : 1; /* Are we use DBCS font set for editing? */
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#else
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WORD fKanji : 1;
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#endif
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WORD fFmtLines : 1; /* For multiline only. Do we insert CR CR LF at
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* word wrap breaks?
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*/
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WORD fWrap : 1; /* Do word wrapping? */
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WORD fCalcLines : 1; /* Recalc ped->chLines array? (recalc line
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* breaks?)
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*/
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WORD fEatNextChar : 1; /* Hack for ALT-NUMPAD stuff with combo boxes.
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* If numlock is up, we want to eat the next
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* character generated by the keyboard driver
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* if user enter num pad ascii value...
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*/
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WORD fStripCRCRLF :1; /* CRCRLFs have been added to text. Strip them
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* before doing any internal edit control
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* stuff
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*/
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WORD fInDialogBox :1; /* True if the ml edit control is in a dialog
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* box and we have to specially treat TABS and
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* ENTER
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*/
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WORD fReadOnly :1; /* Is this a read only edit control? Only
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* allow scrolling, selecting and copying.
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*/
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WORD fCaretHidden :1; /* This indicates whether the caret is
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* currently hidden because the width or height
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* of the edit control is too small to show it.
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*/
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int *chLines; /* index of the start of each line */
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WORD format; /* Left, center, or right justify multiline
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* text.
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*/
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LPSTR (FAR *lpfnNextWord)(); /* Next word function */
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ICH maxPixelWidth; /* Width (in pixels) of longest line */
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WORD undoType; /* Current type of undo we support */
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HANDLE hDeletedText; /* Handle to text which has been deleted (for
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undo)
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*/
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ICH ichDeleted; /* Starting index from which text was deleted*/
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ICH cchDeleted; /* Count of deleted characters in buffer */
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ICH ichInsStart; /* Starting index from which text was
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inserted */
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ICH ichInsEnd; /* Ending index of inserted text */
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HANDLE hFont; /* Handle to the font for this edit control.
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Null if system font.
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*/
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int aveCharWidth; /* Ave width of a character in the hFont */
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int lineHeight; /* Height of a line in the hFont */
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int charOverhang; /* Overhang associated with the hFont */
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int cxSysCharWidth; /* System font ave width */
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int cySysCharHeight; /* System font height */
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HWND listboxHwnd; /* ListBox hwnd. Non null if we are a combo
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box */
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int *pTabStops; /* Points to an array of tab stops; First
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* element contains the number of elements in
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* the array
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*/
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HANDLE charWidthBuffer;
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HBRUSH hbrHiliteBk; /* Hilite background color brush. */
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DWORD rgbHiliteBk; /* Hilite background color */
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DWORD rgbHiliteText; /* Hilite Text color */
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#ifdef FE_SB
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BYTE charSet; /* Character set for current selected font */
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HANDLE hDBCSVector; /* Handle to the DBCS vector table */
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BYTE DBCSVector[8]; /* DBCS vector table which contains flag
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* to detect lead byte of DBC.
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*/
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#endif
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} ED;
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typedef ED *PED;
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/* The following structure is used to store a selection block; In Multiline
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* edit controls, "StPos" and "EndPos" fields contain the Starting and Ending
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* lines of the block. In Single line edit controls, "StPos" and "EndPos"
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* contain the Starting and Ending character positions of the block;
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*/
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typedef struct tagBLOCK
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{
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ICH StPos;
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ICH EndPos;
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} BLOCK;
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typedef BLOCK FAR *LPBLOCK;
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BOOL FAR PASCAL ECNcCreate(HWND, LPCREATESTRUCT);
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BOOL FAR PASCAL ECCreate(HWND, PED, LPCREATESTRUCT);
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LONG FAR PASCAL ECWord(PED, ICH, BOOL); /* no register for PED */
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ICH FAR PASCAL ECFindTab(LPSTR, register ICH);
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void FAR PASCAL ECNcDestroyHandler(HWND, register PED, WORD, LONG);
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BOOL FAR PASCAL ECSetText(register PED, LPSTR);
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void FAR PASCAL ECSetPasswordChar(register PED, WORD);
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ICH FAR PASCAL ECCchInWidth(register PED, HDC, LPSTR, register ICH, unsigned int);
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void FAR PASCAL ECEmptyUndo(register PED);
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BOOL FAR PASCAL ECInsertText(register PED, LPSTR, ICH);
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ICH FAR PASCAL ECDeleteText(register PED);
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void FAR PASCAL ECNotifyParent(register PED, short);
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void FAR PASCAL ECSetEditClip(register PED, HDC);
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HDC FAR PASCAL ECGetEditDC(register PED, BOOL);
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void FAR PASCAL ECReleaseEditDC(register PED, HDC, BOOL);
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void FAR PASCAL ECCreateHandler(register PED);
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ICH FAR PASCAL ECGetTextHandler(register PED, register ICH, LPSTR);
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void FAR PASCAL ECSetFont(register PED, HANDLE, BOOL);
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ICH FAR PASCAL ECCopyHandler(register PED);
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BOOL FAR PASCAL ECCalcChangeSelection(PED, ICH, ICH, LPBLOCK, LPBLOCK);
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void NEAR PASCAL ECFindXORblks(LPBLOCK, LPBLOCK, LPBLOCK, LPBLOCK);
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LONG FAR PASCAL ECTabTheTextOut(HDC, int, int, LPSTR, int, PED, int, BOOL);
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/****************************************************************************/
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/* Multi-Line Support Routines */
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/****************************************************************************/
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ICH FAR PASCAL MLInsertText(PED, LPSTR, WORD, BOOL);
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BOOL FAR PASCAL MLEnsureCaretVisible(register PED);
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void NEAR PASCAL MLDrawText(register PED, HDC, ICH, ICH);
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void NEAR PASCAL MLDrawLine(register PED, HDC, int, ICH, int, BOOL);
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void NEAR PASCAL MLPaintABlock(PED, HDC, int, int);
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int NEAR PASCAL GetBlkEndLine(int, int, BOOL FAR *, int, int);
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LONG FAR PASCAL MLBuildchLines(register PED, int, int, BOOL);
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void NEAR PASCAL MLShiftchLines(register PED, register int, int);
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BOOL NEAR PASCAL MLInsertchLine(register PED, int, ICH, BOOL);
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void FAR PASCAL MLSetCaretPosition(register PED,HDC);
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LONG NEAR PASCAL MLIchToXYPos(register PED, HDC, ICH, BOOL);
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int FAR PASCAL MLIchToLineHandler(register PED, ICH);
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void NEAR PASCAL MLRepaintChangedSelection(PED, HDC, ICH, ICH);
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void NEAR PASCAL MLMouseMotionHandler(PED, WORD, WORD, POINT);
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ICH FAR PASCAL MLLineLength(register PED, int);
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void FAR PASCAL MLStripCrCrLf(register PED);
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BOOL FAR PASCAL MLSetTextHandler(register PED, LPSTR);
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int FAR PASCAL MLCalcXOffset(register PED, HDC, int);
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BOOL FAR PASCAL MLUndoHandler(register PED);
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LONG FAR PASCAL MLEditWndProc(HWND, register PED, WORD, register WORD, LONG);
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void FAR PASCAL MLCharHandler(PED, WORD, int);
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void FAR PASCAL MLSetSelectionHandler(register PED, ICH, ICH);
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LONG FAR PASCAL MLCreateHandler(HWND, PED, LPCREATESTRUCT);
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BOOL FAR PASCAL MLInsertCrCrLf(register PED);
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void FAR PASCAL MLSetHandleHandler(register PED, HANDLE);
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LONG FAR PASCAL MLGetLineHandler(register PED, WORD, ICH, LPSTR);
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ICH FAR PASCAL MLLineIndexHandler(register PED, register int);
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ICH FAR PASCAL MLLineLengthHandler(register PED, ICH);
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void FAR PASCAL MLSizeHandler(register PED);
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void FAR PASCAL MLChangeSelection(register PED, HDC, ICH, ICH);
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void FAR PASCAL MLSetRectHandler(register PED, LPRECT);
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BOOL FAR PASCAL MLExpandTabs(register PED);
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BOOL FAR PASCAL MLSetTabStops(PED, int, LPINT);
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int FAR PASCAL MLThumbPosFromPed(register PED, BOOL);
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/****************************************************************************/
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/* Single Line Support Routines */
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/****************************************************************************/
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void NEAR PASCAL SLReplaceSelHandler(register PED, LPSTR);
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BOOL FAR PASCAL SLUndoHandler(register PED);
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void FAR PASCAL SLSetCaretPosition(register PED, HDC);
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int NEAR PASCAL SLIchToLeftXPos(register PED, HDC, ICH);
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void FAR PASCAL SLChangeSelection(register PED, HDC, ICH, ICH);
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void NEAR PASCAL SLDrawText(register PED, register HDC, ICH);
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void NEAR PASCAL SLDrawLine(register PED, register HDC, ICH, int, BOOL);
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int NEAR PASCAL SLGetBlkEnd(PED, ICH, ICH, BOOL FAR *);
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BOOL FAR PASCAL SLScrollText(register PED, HDC);
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void FAR PASCAL SLSetSelectionHandler(register PED,ICH, ICH);
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ICH FAR PASCAL SLInsertText(register PED, LPSTR, register ICH);
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ICH NEAR PASCAL SLPasteText(register PED);
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void FAR PASCAL SLCharHandler(register PED, WORD, int);
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void NEAR PASCAL SLKeyUpHandler(register PED, WORD);
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void NEAR PASCAL SLKeyDownHandler(register PED, WORD, int);
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ICH NEAR PASCAL SLMouseToIch(register PED, HDC, POINT);
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void NEAR PASCAL SLMouseMotionHandler(register PED, WORD, WORD, POINT);
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LONG FAR PASCAL SLCreateHandler(HWND, PED, LPCREATESTRUCT);
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void FAR PASCAL SLSizeHandler(register PED);
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void NEAR PASCAL SLPaintHandler(register PED, HDC);
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BOOL FAR PASCAL SLSetTextHandler(register PED, LPSTR);
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void NEAR PASCAL SLSetFocusHandler(register PED);
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void NEAR PASCAL SLKillFocusHandler(register PED, HWND);
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LONG FAR PASCAL SLEditWndProc(HWND, register PED, WORD, register WORD, LONG);
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/****************************************************************************/
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/* EditWndProc() */
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/****************************************************************************/
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LONG FAR PASCAL EditWndProc(HWND, WORD, register WORD, LONG);
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#ifdef FE_SB
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/****************************************************************************/
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/* DBCS Support Routines */
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/****************************************************************************/
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int FAR PASCAL DBCSCombine( HWND, int );
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ICH FAR PASCAL ECAdjustIch( PED, LPSTR, ICH );
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VOID FAR PASCAL ECGetDBCSVector( PED );
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LPSTR FAR PASCAL ECAnsiNext( PED, LPSTR );
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LPSTR FAR PASCAL ECAnsiPrev( PED, LPSTR, LPSTR );
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BOOL FAR PASCAL ECIsDBCSLeadByte( PED, BYTE );
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#endif
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