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X-Sun-Data-Type: text
X-Sun-Data-Description: text
X-Sun-Data-Name: text
X-Sun-Charset: us-ascii
X-Sun-Content-Lines: 24
Hello dear Xformers
There seem to be an anomaly in the xforms clipping routine.
After using the command fl_set_clipping only the first
object that is drawn is clipped, other drawing commands
do not clip. For example:
static void draw_newobject(FL_OBJECT *ob) {
fl_set_clipping(ob->x,ob->y,ob->w,ob->h);
fl_drw_box(FL_RSHADOW_BOX,
ob->x+10,ob->y+ob->h/2+10,ob->w+20,ob->h/2,FL_BLUE,3);
// this box is clipped
fl_drw_box(FL_RSHADOW_BOX,
ob->x+50,ob->y+2*ob->h/3+10,ob->w+20,ob->h/2,FL_YELLOW,3);
// this box is NOT clipped
fl_unset_clipping();
fl_rect(ob->x,ob->y,ob->w,ob->h,FL_BLACK);
}
is this meant to work this way and should I give a set_clipping command
before each drawing command (than whats the use of the fl_unset_clipping)
or is this a bug
I have included a sample program and a sample image of the problem.
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X-Sun-Data-Type: c-file
X-Sun-Data-Description: c-file
X-Sun-Data-Name: newobject.c
X-Sun-Content-Lines: 72
X-Sun-Charset: us-ascii
#include <forms.h>
#define FL_NEWOBJECT 1006
#define FL_NORMAL_NEWOBJECT 0
// DEFINITIONS
FL_OBJECT *fl_create_newobject(int type,FL_Coord x,FL_Coord y,FL_Coord w,FL_Coord h,const char *label);
FL_OBJECT *fl_add_newobject(int type,FL_Coord x,FL_Coord y,FL_Coord w,FL_Coord h,const char *label);
static int handle_newobject(FL_OBJECT *ob,int event,
FL_Coord mx,FL_Coord my,int key,void *xev);
static void draw_newobject(FL_OBJECT *ob);
// IMPLEMENTATIONS
FL_OBJECT *fl_create_newobject(int type,
FL_Coord x,FL_Coord y,FL_Coord w,FL_Coord h,const char *label) {
FL_OBJECT *ob;
ob= fl_make_object(FL_NEWOBJECT,type,x,y,w,h,label,handle_newobject);
return ob;
}
FL_OBJECT *fl_add_newobject(int type,FL_Coord x,FL_Coord y,
FL_Coord w,FL_Coord h,const char *label) {
FL_OBJECT *ob=fl_create_newobject(type,x,y,w,h,label);
fl_add_object(fl_current_form,ob);
return ob;
}
static void draw_newobject(FL_OBJECT *ob) {
fl_set_clipping(ob->x,ob->y,ob->w,ob->h);
fl_drw_box(FL_RSHADOW_BOX,
ob->x+10,ob->y+ob->h/2+10,ob->w+20,ob->h/2,FL_BLUE,3);
// fl_unset_clipping();
// fl_set_clipping(ob->x,ob->y,ob->w,ob->h);
fl_drw_box(FL_RSHADOW_BOX,
ob->x+50,ob->y+2*ob->h/3+10,ob->w+20,ob->h/2,FL_YELLOW,3);
fl_unset_clipping();
fl_rect(ob->x,ob->y,ob->w,ob->h,FL_BLACK);
}
static int handle_newobject(FL_OBJECT *ob,int event,
FL_Coord mx,FL_Coord my,int key,void *xev) {
switch(event) {
case FL_DRAW:
draw_newobject(ob);
break;
}
return 0;
}
FL_FORM *form;
FL_OBJECT
*newobject;
int main(int argc, char *argv[]) {
fl_initialize(&argc, argv, 0, 0, 0);
// create form
FL_OBJECT *obj;
form=fl_bgn_form(FL_NO_BOX,600,500);
obj = fl_add_box(FL_UP_BOX,0,0,600,500,"");
newobject=fl_add_newobject(FL_NORMAL_NEWOBJECT,100,100,400,300,"newobject");
fl_end_form();
//
fl_show_form(form,FL_PLACE_MOUSE,FL_FULLBORDER,"NEWOBJECT form");
fl_do_forms();
return 1;
}
----------
X-Sun-Data-Type: gif-file
X-Sun-Data-Description: gif-file
X-Sun-Data-Name: newobject.gif
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X-Sun-Content-Lines: 128
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end
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