fltk/src/fl_shadow_box.cxx
Albrecht Schlosser b65d3a249d Customize corner radius for rounded box/frame (#130)
Make maximum box corner radius and shadow width configurable.
See Fl::box_border_radius_max() and Fl::box_shadow_width().

Documentation: update image of box types.

Fixes #130
2020-09-01 12:35:48 +02:00

45 lines
1.3 KiB
C++

//
// Shadow box drawing routines for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2011 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
#include <FL/Fl.H>
#include <FL/fl_draw.H>
// Global parameters for box drawing algorithm:
//
// BW = box shadow width
#define BW (Fl::box_shadow_width())
static void fl_shadow_frame(int x, int y, int w, int h, Fl_Color c) {
fl_color(FL_DARK3);
fl_rectf(x+BW, y+h-BW, w - BW, BW);
fl_rectf(x+w-BW, y+BW, BW, h - BW);
Fl::set_box_color(c);
fl_rect(x,y,w-BW,h-BW);
}
static void fl_shadow_box(int x, int y, int w, int h, Fl_Color c) {
Fl::set_box_color(c);
fl_rectf(x+1,y+1,w-2-BW,h-2-BW);
fl_shadow_frame(x,y,w,h,FL_GRAY0);
}
extern void fl_internal_boxtype(Fl_Boxtype, Fl_Box_Draw_F*);
Fl_Boxtype fl_define_FL_SHADOW_BOX() {
fl_internal_boxtype(_FL_SHADOW_FRAME, fl_shadow_frame);
fl_internal_boxtype(_FL_SHADOW_BOX, fl_shadow_box);
return _FL_SHADOW_BOX;
}