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#include <windows.h>
#include <string.h>
#include <malloc.h>
#include <stdlib.h>
#include <commdlg.h>
#include <math.h>
#include "mswint.h"
/*
*****************************************************************************
*
* Lines
*
*****************************************************************************
*/
struct wLine_t {
WOBJ_COMMON
int count;
wLines_t * lines;
};
static void repaintLines( HWND hWnd, wControl_p b )
{
int lastWidth;
HDC hDc;
wLine_p bl = (wLine_p)(b);
wLines_p lp;
HPEN oldPen, newPen;
lastWidth = -1;
hDc = GetDC( hWnd );
for (lp=bl->lines; lp<&bl->lines[bl->count]; lp++) {
if (lastWidth != lp->width) {
lastWidth = lp->width;
newPen = CreatePen( PS_SOLID, lastWidth, RGB(0,0,0) );
oldPen = SelectObject( hDc, newPen );
DeleteObject( oldPen );
}
MoveTo( hDc, lp->x0, lp->y0 );
LineTo( hDc, lp->x1, lp->y1 );
}
ReleaseDC( hWnd, hDc );
}
static callBacks_t linesCallBacks = {
repaintLines,
NULL,
NULL };
wLine_p wLineCreate(
wWin_p parent,
const char * labelStr,
int count,
wLines_t * lines )
{
wLine_p b;
wLines_p lp;
POS_T minX, maxX, minY, maxY;
int index;
if (count <= 0)
return NULL;
b = (wLine_p)mswAlloc( parent, B_LINES, labelStr, sizeof *b, NULL, &index );
b->count = count;
b->lines = lines;
lp = lines;
minX = maxX = lp->x0;
minY = maxY = lp->y0;
for (lp=lines; lp<&b->lines[count]; lp++) {
if (minX > lp->x0)
minX = lp->x0;
if (maxX < lp->x0)
maxX = lp->x0;
if (minY > lp->y0)
minY = lp->y0;
if (maxY < lp->y0)
maxY = lp->y0;
if (minX > lp->x1)
minX = lp->x1;
if (maxX < lp->x1)
maxX = lp->x1;
if (minY > lp->y1)
minY = lp->y1;
if (maxY < lp->y1)
maxY = lp->y1;
}
b->x = minX;
b->y = minY;
b->w = maxX-minX;
b->h = maxY-minY;
mswAddButton( (wControl_p)b, FALSE, NULL );
mswCallBacks[B_LINES] = &linesCallBacks;
return b;
}
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