4cea3aee0c
Two new static methods have been introduced:
- Fl::box_color(Fl_Color c) returns the bg color dependent on the
widget's state (inactive_r()).
- Fl::set_box_color(Fl_Color c) sets the correct bg color dependent
on the widget's state by calling fl_color(Fl::box_color(c)).
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10781 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
114 lines
3.9 KiB
C++
114 lines
3.9 KiB
C++
//
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// "$Id$"
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//
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// Round box drawing routines for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// http://www.fltk.org/COPYING.php
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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// Box drawing code for an obscure box type.
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// These box types are in separate files so they are not linked
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// in if not used.
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#include <FL/Fl.H>
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#include <FL/fl_draw.H>
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// A compiler from a certain very large software company will not compile
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// the function pointer assignment due to the name conflict with fl_arc.
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// This function is to fix that:
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static void fl_arc_i(int x,int y,int w,int h,double a1,double a2) {
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fl_arc(x,y,w,h,a1,a2);
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}
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enum {UPPER_LEFT, LOWER_RIGHT, CLOSED, FILL};
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static void draw(int which, int x,int y,int w,int h, int inset, Fl_Color color)
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{
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if (inset*2 >= w) inset = (w-1)/2;
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if (inset*2 >= h) inset = (h-1)/2;
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x += inset;
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y += inset;
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w -= 2*inset;
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h -= 2*inset;
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int d = w <= h ? w : h;
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if (d <= 1) return;
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fl_color(color);
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void (*f)(int,int,int,int,double,double);
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f = (which==FILL) ? fl_pie : fl_arc_i;
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if (which >= CLOSED) {
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f(x+w-d, y, d, d, w<=h ? 0 : -90, w<=h ? 180 : 90);
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f(x, y+h-d, d, d, w<=h ? 180 : 90, w<=h ? 360 : 270);
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} else if (which == UPPER_LEFT) {
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f(x+w-d, y, d, d, 45, w<=h ? 180 : 90);
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f(x, y+h-d, d, d, w<=h ? 180 : 90, 225);
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} else { // LOWER_RIGHT
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f(x, y+h-d, d, d, 225, w<=h ? 360 : 270);
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f(x+w-d, y, d, d, w<=h ? 360 : 270, 360+45);
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}
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if (which == FILL) {
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if (w < h)
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fl_rectf(x, y+d/2, w, h-(d&-2));
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else if (w > h)
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fl_rectf(x+d/2, y, w-(d&-2), h);
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} else {
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if (w < h) {
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if (which != UPPER_LEFT) fl_yxline(x+w-1, y+d/2-1, y+h-d/2+1);
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if (which != LOWER_RIGHT) fl_yxline(x, y+d/2-1, y+h-d/2+1);
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} else if (w > h) {
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if (which != UPPER_LEFT) fl_xyline(x+d/2-1, y+h-1, x+w-d/2+1);
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if (which != LOWER_RIGHT) fl_xyline(x+d/2-1, y, x+w-d/2+1);
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}
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}
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}
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extern const uchar* fl_gray_ramp();
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void fl_round_down_box(int x, int y, int w, int h, Fl_Color bgcolor) {
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const uchar *g = fl_gray_ramp();
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draw(FILL, x, y, w, h, 2, Fl::box_color(bgcolor));
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draw(UPPER_LEFT, x+1, y, w-2, h, 0, (Fl_Color)g[(int)'N']);
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draw(UPPER_LEFT, x+1, y, w-2, h, 1, (Fl_Color)g[(int)'H']);
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draw(UPPER_LEFT, x, y, w, h, 0, (Fl_Color)g[(int)'N']);
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draw(UPPER_LEFT, x, y, w, h, 1, (Fl_Color)g[(int)'H']);
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draw(LOWER_RIGHT, x, y, w, h, 0, (Fl_Color)g[(int)'S']);
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draw(LOWER_RIGHT, x+1, y, w-2, h, 0, (Fl_Color)g[(int)'U']);
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draw(LOWER_RIGHT, x, y, w, h, 1, (Fl_Color)g[(int)'U']);
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draw(LOWER_RIGHT, x+1, y, w-2, h, 1, (Fl_Color)g[(int)'W']);
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draw(CLOSED, x, y, w, h, 2, (Fl_Color)g[(int)'A']);
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}
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void fl_round_up_box(int x, int y, int w, int h, Fl_Color bgcolor) {
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const uchar *g = fl_gray_ramp();
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draw(FILL, x, y, w, h, 2, Fl::box_color(bgcolor));
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draw(LOWER_RIGHT, x+1, y, w-2, h, 0, (Fl_Color)g[(int)'H']);
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draw(LOWER_RIGHT, x+1, y, w-2, h, 1, (Fl_Color)g[(int)'N']);
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draw(LOWER_RIGHT, x, y, w, h, 1, (Fl_Color)g[(int)'H']);
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draw(LOWER_RIGHT, x, y, w, h, 2, (Fl_Color)g[(int)'N']);
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draw(UPPER_LEFT, x, y, w, h, 2, (Fl_Color)g[(int)'U']);
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draw(UPPER_LEFT, x+1, y, w-2, h, 1, (Fl_Color)g[(int)'S']);
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draw(UPPER_LEFT, x, y, w, h, 1, (Fl_Color)g[(int)'W']);
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draw(UPPER_LEFT, x+1, y, w-2, h, 0, (Fl_Color)g[(int)'U']);
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draw(CLOSED, x, y, w, h, 0, (Fl_Color)g[(int)'A']);
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}
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extern void fl_internal_boxtype(Fl_Boxtype, Fl_Box_Draw_F*);
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Fl_Boxtype fl_define_FL_ROUND_UP_BOX() {
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fl_internal_boxtype(_FL_ROUND_DOWN_BOX, fl_round_down_box);
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fl_internal_boxtype(_FL_ROUND_UP_BOX, fl_round_up_box);
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return _FL_ROUND_UP_BOX;
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}
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//
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// End of "$Id$".
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//
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