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Add WINGs tutorial

Browse Source 
The original website is
http://www.quantitativefinanceservices.com/OpenDir/WINGslib/WINGToc.html

and it had the following notice at the bottom:

Copyright (c) 2010 Permission is granted to copy, distribute and/or modify
this document under the terms of the GNU Free Documentation License, Version
1.1 or any later version published by the Free Software Foundation; with no
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A
copy of the license is included in the section entitled "GNU Free
Documentation License".

So we are fine.
This commit is contained in:
Carlos R. Mafra
2019-01-13 12:11:56 +00:00
committed by Doug Torrance
parent beb38913b4
commit 6c515667a7
49 changed files with 3749 additions and 0 deletions
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100
WINGs_tutorial/SeventhWindow.c Normal file
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#include <WINGs/WINGs.h>
#include <WINGs/WINGsP.h>
#define HOFF 40
#define VOFF 160
#define WINWIDTH 180
#define WINHEIGHT 300
Display *display;
WMScreen *screen;
WMPixmap* pixmap;
struct _pict{
Drawable dwin;
XSegment segments[40];
int seglen;
} pic;
GC gc, g3;
void closeAction(WMWidget *self,void *data){
WMDestroyWidget(self);
exit(0);
}
void drawProcedure(XEvent *event, void *data){
WMDrawPixmap(pixmap, ((struct _pict*)data)->dwin,HOFF,30);
XDrawRectangle(display,((struct _pict*)data)->dwin,g3, HOFF,VOFF,100,100);
XFillRectangle(screen->display, ((struct _pict*)data)->dwin , WMColorGC(screen->white), HOFF, VOFF, 100, 100);
XDrawSegments(display, ((struct _pict*)data)->dwin, WMColorGC(screen->black), ((struct _pict*)data)->segments, ((struct _pict*)data)->seglen);
XFlush(display);
return;
}
int main (int argc, char **argv){
int i,j;
WMColor *color;
WMWindow * win;
RImage *image;
struct _pict pict;
Drawable de;
RColor one, two={0xaf, 0x0f,0xff,0x33};
one.red=247;
one.green=251;
one.blue=107;
one.alpha=0xff;
WMInitializeApplication("DrawWin", &argc, argv);
display = XOpenDisplay("");
screen = WMCreateScreen(display, DefaultScreen(display));
win = WMCreateWindow(screen, "");
WMResizeWidget(win, WINWIDTH, WINHEIGHT);
WMSetWindowCloseAction(win, closeAction, NULL);
WMSetWindowTitle(win,"Graphics");
color = WMCreateRGBColor(screen,124<<9,206<<8,162<<8, False);
WMSetWidgetBackgroundColor((WMWidget *)win, color);
/* end setup main window */
image=RCreateImage( 100,100,0.5);
RFillImage(image, &two);
RDrawLine(image, 50,10,90,90,&one);
RDrawLine(image, 10,90,50,10,&one);
RDrawLine(image, 10,90,90,90,&one);
g3=WMColorGC(screen->gray);
XSetLineAttributes(display,g3,3,LineSolid,CapButt,JoinMiter);
pict.segments[1].x1= pict.segments[0].x1=HOFF;
pict.segments[0].x2=HOFF;
pict.segments[0].y1=VOFF;
pict.segments[1].y2= pict.segments[0].y2=VOFF;
pict.segments[1].x2= HOFF+10;
pict.segments[1].y1=VOFF+10;
pict.seglen=2;
for (i=9;i>0;i--){
j=2*(10-i);
pict.segments[j+1].x1= pict.segments[j].x1=HOFF;
pict.segments[j+1].y2= pict.segments[j].y2=VOFF;
pict.segments[j].x2= i+pict.segments[j-1].x2;
pict.segments[j].y1=i+pict.segments[j-1].y1;
pict.segments[j+1].x2= i+pict.segments[j].x2;
pict.segments[j+1].y1=i+pict.segments[j].y1;
pict.seglen+=2;
};
WMRealizeWidget(win);
pict.dwin=W_VIEW_DRAWABLE(WMWidgetView(win));
pixmap=WMCreatePixmapFromRImage(screen, image,1);
WMCreateEventHandler(WMWidgetView(win), ExposureMask,drawProcedure,&pict);
WMMapWidget(win);
WMScreenMainLoop(screen);
}