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#include <windows.h>
#include <string.h>
#include <stdlib.h>
#include <commdlg.h>
#include <math.h>
#include "mswint.h"
/*
*****************************************************************************
*
* Message Boxes
*
*****************************************************************************
*/
/**
* factors by which fonts are resized if nonstandard text height is used
*/
#define SCALE_LARGE 1.6
#define SCALE_SMALL 0.8
struct wMessage_t {
WOBJ_COMMON
long flags;
const char * message;
};
static void repaintMessage(
HWND hWnd,
wControl_p b )
{
wMessage_p bm = (wMessage_p)b;
HDC hDc;
RECT rect;
HFONT hFont;
LOGFONT msgFont;
double scale = 1.0;
TEXTMETRIC textMetrics;
hDc = GetDC( hWnd );
hFont = SelectObject( hDc, mswLabelFont );
switch( wMessageSetFont( ((wMessage_p)b)->flags )) {
case BM_LARGE:
scale = SCALE_LARGE;
break;
case BM_SMALL:
scale = SCALE_SMALL;
break;
}
/* is a non-standard text height required? */
if( scale != 1.0 ) {
/* if yes, get information about the standard font used */
GetObject( GetStockObject( DEFAULT_GUI_FONT ), sizeof( LOGFONT ), &msgFont );
/* change the height */
msgFont.lfHeight = (long)((double)msgFont.lfHeight * scale);
/* create and activate the new font */
hFont = SelectObject( hDc, CreateFontIndirect( &msgFont ) );
} else {
hFont = SelectObject( hDc, mswLabelFont );
}
GetTextMetrics(hDc, &textMetrics);
rect.bottom = (long)(bm->y+( bm->h ));
rect.right = (long)(bm->x+( scale * bm->w ));
rect.top = bm->y+1;
rect.left = bm->x;
SetBkColor( hDc, GetSysColor( COLOR_BTNFACE ) );
ExtTextOut( hDc, bm->x, bm->y + ((bm->h + 2 - textMetrics.tmHeight) / 2),
ETO_CLIPPED|ETO_OPAQUE, &rect, bm->message, (int)(strlen( bm->message )),
NULL );
if( scale != 1.0 )
/* in case we did create a new font earlier, delete it now */
{
DeleteObject( SelectObject( hDc, GetStockObject( DEFAULT_GUI_FONT )));
} else {
SelectObject( hDc, hFont );
}
ReleaseDC( hWnd, hDc );
}
void wMessageSetValue(
wMessage_p b,
const char * arg )
{
if (b->message) {
free( CAST_AWAY_CONST b->message );
}
if (arg) {
b->message = mswStrdup( arg );
} else {
b->message = NULL;
}
repaintMessage( ((wControl_p)(b->parent))->hWnd, (wControl_p)b );
}
void wMessageSetWidth(
wMessage_p b,
wWinPix_t width )
{
b->w = width;
}
wWinPix_t wMessageGetWidth(const char *string)
{
return(wLabelWidth(string));
}
wWinPix_t wMessageGetHeight( long flags )
{
double scale = 1.0;
if( flags & BM_LARGE ) {
scale = SCALE_LARGE;
}
if( flags & BM_SMALL ) {
scale = SCALE_SMALL;
}
return((wWinPix_t)((mswEditHeight) * scale ));
}
static void mswMessageSetBusy(
wControl_p b,
BOOL_T busy )
{
}
static callBacks_t messageCallBacks = {
repaintMessage,
NULL,
NULL,
mswMessageSetBusy
};
wMessage_p wMessageCreateEx(
wWin_p parent,
wWinPix_t x,
wWinPix_t y,
const char * helpStr,
wWinPix_t width,
const char *message,
long flags )
{
wMessage_p b;
int index;
b = (wMessage_p)mswAlloc( parent, B_MESSAGE, NULL, sizeof *b, NULL, &index );
mswComputePos( (wControl_p)b, x, y );
b->option |= BO_READONLY;
b->message = mswStrdup( message );
b->flags = flags;
b->w = width;
b->h = wMessageGetHeight( flags ) + 1;
repaintMessage( ((wControl_p)parent)->hWnd, (wControl_p)b );
mswAddButton( (wControl_p)b, FALSE, helpStr );
mswCallBacks[B_MESSAGE] = &messageCallBacks;
return b;
}
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