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Initial import of the CDE 2.1.30 sources from the Open Group.

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This commit is contained in:
Peter Howkins
2012-03-10 18:21:40 +00:00
commit 83b6996daa
18978 changed files with 3945623 additions and 0 deletions
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cde/lib/DtHelp/Resize.c Normal file
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/* $XConsortium: Resize.c /main/5 1995/10/26 12:31:25 rswiston $ */
/************************************<+>*************************************
****************************************************************************
**
** File: Resize.c
**
** Project: Display Area Library
**
** Description: This body of code handles direct resize requests from
** the GUI.
**
** (c) Copyright 1987, 1988, 1989, 1990, 1991, 1992 Hewlett-Packard Company
**
** (c) Copyright 1993, 1994 Hewlett-Packard Company
** (c) Copyright 1993, 1994 International Business Machines Corp.
** (c) Copyright 1993, 1994 Sun Microsystems, Inc.
** (c) Copyright 1993, 1994 Novell, Inc.
**
**
****************************************************************************
************************************<+>*************************************/
/*
* system includes
*/
/*
* private includes
*/
#include "DisplayAreaP.h"
#include "CallbacksI.h"
#include "ResizeI.h"
#include "SetListI.h"
#include "XUICreateI.h"
#ifdef NLS16
#endif
/******** Private Function Declarations ********/
/******** End Private Function Declarations ********/
/******** Private Variables ********/
/******** End Private Variables ********/
/*********************************************************************
* Private Functions
*********************************************************************/
/*********************************************************************
* Public Functions
*********************************************************************/
/*********************************************************************
* Function: ResizeDisplayArea
*
* ResizeDisplayArea resizes the Display Area and re-formats the
* text based on a row and column values given.
*
*********************************************************************/
void
_DtHelpResizeDisplayArea (
Widget parent,
XtPointer client_data,
int rows,
int columns )
{
int count = 0;
register int n;
unsigned long char_width;
Arg args[5];
Dimension newWidth;
Dimension newHeight;
Dimension vertWidth = 0;
Dimension horzHeight = 0;
Dimension tstWidth;
Dimension tstHeight;
Dimension oldWidth;
Dimension oldHeight;
XEvent event;
XmDrawnButtonCallbackStruct callBack;
DtHelpDispAreaStruct *pDAS = (DtHelpDispAreaStruct *) client_data;
/*
* check the values.
*/
if (rows <= 0)
rows = 1;
if (columns <= 0)
columns = 1;
/* Set the size of the text view area to the requested number of columns */
/* and lines. */
char_width = pDAS->charWidth * columns;
newWidth = char_width / 10 + (char_width % 10 ? 1 : 0) +
2 * (pDAS->decorThickness + pDAS->marginWidth);
newHeight = pDAS->lineHeight * rows + 2 * pDAS->decorThickness;
/*
* get the width and height of the scroll bars.
*/
if (pDAS->vertScrollWid)
{
XtSetArg (args[0], XmNwidth , &vertWidth);
XtGetValues (pDAS->vertScrollWid, args, 1);
}
if (pDAS->horzScrollWid)
{
XtSetArg (args[0], XmNheight , &horzHeight);
XtGetValues (pDAS->horzScrollWid, args, 1);
}
/*
* loop a couple of times at most to get the sizing correct.
* This is caused by the fact we can't do a set values on
* the drawn button itself, someone above it is rejecting
* the resize request. So, resize the great-grandparent
* (a couple of times if necessary).
*/
do {
/*
* take into consideration the scrollbars.
*/
tstWidth = newWidth;
tstHeight = newHeight;
if (pDAS->vertScrollWid &&
_DtHelpIS_AS_NEEDED(pDAS->neededFlags, _DtHelpVERTICAL_SCROLLBAR)
&& pDAS->vertIsMapped)
{
if (tstWidth > vertWidth)
tstWidth -= vertWidth;
else
tstWidth = 0;
}
if (pDAS->horzScrollWid &&
_DtHelpIS_AS_NEEDED(pDAS->neededFlags, _DtHelpHORIZONTAL_SCROLLBAR)
&& pDAS->horzIsMapped)
{
if (tstHeight > horzHeight)
tstHeight -= horzHeight;
else
tstHeight = 0;
}
if (tstWidth == pDAS->dispWidth && tstHeight == pDAS->dispHeight)
return;
/*
* kludge around the fact that some parent is not letting
* me resize the drawn button. Get the parent's size and
* resize that!
*/
n = 0;
XtSetArg(args[n], XmNwidth, &oldWidth); ++n;
XtSetArg(args[n], XmNheight, &oldHeight); ++n;
XtGetValues(parent, args, n);
/*
* calculate its new size
*/
oldWidth = oldWidth - pDAS->dispWidth + tstWidth;
oldHeight = oldHeight - pDAS->dispHeight + tstHeight;
/*
* set my parent's size to affect me.
*/
n = 0;
XtSetArg(args[n], XmNwidth, oldWidth); ++n;
XtSetArg(args[n], XmNheight, oldHeight); ++n;
XtSetValues(parent, args, n);
} while (count++ < 2);
/*
* check to see if the Set Values on my parent took care of everything.
*/
if (pDAS->vertScrollWid &&
_DtHelpIS_AS_NEEDED(pDAS->neededFlags, _DtHelpVERTICAL_SCROLLBAR)
&& pDAS->vertIsMapped)
{
if (newWidth > vertWidth)
newWidth -= vertWidth;
else
newWidth = 0;
}
if (pDAS->horzScrollWid &&
_DtHelpIS_AS_NEEDED(pDAS->neededFlags, _DtHelpHORIZONTAL_SCROLLBAR)
&& pDAS->horzIsMapped)
{
if (newHeight > horzHeight)
newHeight -= horzHeight;
else
newHeight = 0;
}
if (newWidth == pDAS->dispWidth && newHeight == pDAS->dispHeight)
return;
/*
* clean up
_DtHelpClearSelection (pDAS);
*/
/*
* reset the scroll bars and possibly reformat the text.
*/
_DtHelpSetScrollBars (client_data, newWidth, newHeight);
if (XtIsRealized (pDAS->dispWid))
_DtHelpCleanAndDrawWholeCanvas(client_data);
} /* End _DtHelpResizeDisplayArea */