428008c276
FL_ROUND_DOWN_BOX) on Linux (STR #2615). This was done by (a) setting the line width in the box drawing function (was undefined, maybe 0) (b) taking care of zero and negative line width in X11 clipping functions. Both solutions would have solved the particular problem individually. Additionally made local helper function fl_arc_i() in src/fl_round_box.cxx static to avoid name clashes. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8630 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
125 lines
4.3 KiB
C++
125 lines
4.3 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; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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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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fl_line_style(0,1);
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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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fl_line_style(0);
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}
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extern 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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uchar *g = fl_gray_ramp();
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draw(FILL, x, y, w, h, 2, bgcolor);
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draw(UPPER_LEFT, x+1, y, w-2, h, 0, (Fl_Color)g['N']);
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draw(UPPER_LEFT, x+1, y, w-2, h, 1, (Fl_Color)g['H']);
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draw(UPPER_LEFT, x, y, w, h, 0, (Fl_Color)g['N']);
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draw(UPPER_LEFT, x, y, w, h, 1, (Fl_Color)g['H']);
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draw(LOWER_RIGHT, x, y, w, h, 0, (Fl_Color)g['S']);
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draw(LOWER_RIGHT, x+1, y, w-2, h, 0, (Fl_Color)g['U']);
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draw(LOWER_RIGHT, x, y, w, h, 1, (Fl_Color)g['U']);
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draw(LOWER_RIGHT, x+1, y, w-2, h, 1, (Fl_Color)g['W']);
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draw(CLOSED, x, y, w, h, 2, (Fl_Color)g['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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uchar *g = fl_gray_ramp();
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draw(FILL, x, y, w, h, 2, bgcolor);
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draw(LOWER_RIGHT, x+1, y, w-2, h, 0, (Fl_Color)g['H']);
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draw(LOWER_RIGHT, x+1, y, w-2, h, 1, (Fl_Color)g['N']);
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draw(LOWER_RIGHT, x, y, w, h, 1, (Fl_Color)g['H']);
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draw(LOWER_RIGHT, x, y, w, h, 2, (Fl_Color)g['N']);
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draw(UPPER_LEFT, x, y, w, h, 2, (Fl_Color)g['U']);
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draw(UPPER_LEFT, x+1, y, w-2, h, 1, (Fl_Color)g['S']);
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draw(UPPER_LEFT, x, y, w, h, 1, (Fl_Color)g['W']);
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draw(UPPER_LEFT, x+1, y, w-2, h, 0, (Fl_Color)g['U']);
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draw(CLOSED, x, y, w, h, 0, (Fl_Color)g['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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