home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Info-Mac 3
/
Info_Mac_1994-01.iso
/
Development
/
Source
/
MSG Demo 1.2 Source
/
MSG Demo ƒ
/
MSG Shell ƒ
/
msg dialogs.c
< prev
next >
Wrap
Text File
|
1993-11-10
|
3KB
|
85 lines
/**********************************************************************\
File: msg dialogs.c
Purpose: This module handles positioning a dialog on the screen as
per Human Interface Guidelines. Also, a quick-and-dirty
default button outline.
MSG Demo -- graphic effects demonstration program
Copyright (C) 1992-3 Mark Pilgrim & Dave Blumenthal
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program in a file named "GNU General Public License".
If not, write to the Free Software Foundation, 675 Mass Ave,
Cambridge, MA 02139, USA.
\**********************************************************************/
#include "msg dialogs.h"
/******************************************************************************
PositionDialog
Center the bounding box of a dialog or alert in the upper third
of the screen. This is the preferred location according to the
Human Interface Guidelines.
******************************************************************************/
void PositionDialog(ResType theType, short theID)
{
Handle theTemplate; /* Handle to resource template */
register Rect *theRect; /* Bounding box of dialog */
register short left; /* Left side of centered rect */
register short top; /* Top side of centered rect */
/* The first field of the resource template for DLOG's and ALRT's */
/* is its bounding box. Get a pointer to this rectangle. This */
/* handle dereferencing is safe since the remaining statements in */
/* this function do not move memory (assignment and simple math). */
theTemplate = GetResource(theType, theID);
if(theTemplate == 0)
return;
theRect = (Rect*) *theTemplate;
/* Center horizontally on screen */
left = (screenBits.bounds.right - (theRect->right - theRect->left)) / 2;
/* Leave twice as much space below */
/* as above the rectangle */
top = (screenBits.bounds.bottom - (theRect->bottom - theRect->top)) / 3;
/* Don't put rect under menu bar */
if(top < (GetMBarHeight() + 1))
top = GetMBarHeight() + 1;
theRect->right += left - theRect->left;
theRect->left = left;
theRect->bottom += top - theRect->top;
theRect->top = top;
}
pascal void OutlineDefaultButton(DialogPtr myDlog, short itemNum)
{
short itemType;
Handle itemH;
Rect box;
GetDItem(myDlog, 1, &itemType, &itemH, &box);
PenSize(3, 3);
InsetRect(&box, -4, -4);
FrameRoundRect(&box, 16, 16);
PenNormal();
}