a7904da09a
concern if they are selected, it uses the first visible() child to indicate the selected tab. Fixed up rather bogus fix for selecting entire text field when you click on it. This new version does not do it for multi-line and does not mess up the middle-mouse paste action. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.0@777 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
116 lines
2.9 KiB
C++
116 lines
2.9 KiB
C++
//
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// "$Id: shape.cxx,v 1.5.2.1 1999/10/15 09:01:48 bill Exp $"
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//
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// Tiny OpenGL demo program for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-1999 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 to "fltk-bugs@easysw.com".
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//
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#include <config.h>
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#include <FL/Fl.H>
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#include <FL/Fl_Window.H>
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#include <FL/Fl_Hor_Slider.H>
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#include <FL/math.h>
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#if HAVE_GL
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#include <FL/gl.h>
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#include <FL/Fl_Gl_Window.H>
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class shape_window : public Fl_Gl_Window {
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void draw();
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public:
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int sides;
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shape_window(int x,int y,int w,int h,const char *l=0);
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};
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shape_window::shape_window(int x,int y,int w,int h,const char *l) :
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Fl_Gl_Window(x,y,w,h,l) {
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sides = 3;
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}
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void shape_window::draw() {
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// the valid() property may be used to avoid reinitializing your
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// GL transformation for each redraw:
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if (!valid()) {
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valid(1);
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glLoadIdentity();
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glViewport(0, 0, w(), h());
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}
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// draw an amazing graphic:
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glClear(GL_COLOR_BUFFER_BIT);
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glColor3f(.5,.6,.7);
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glBegin(GL_POLYGON);
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for (int i=0; i<sides; i++) {
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double ang = i*2*M_PI/sides;
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glVertex3f(cos(ang),sin(ang),0);
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}
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glEnd();
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}
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#else
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#include <FL/Fl_Box.H>
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class shape_window : public Fl_Box {
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public:
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int sides;
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shape_window(int x,int y,int w,int h,const char *l=0)
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:Fl_Box(FL_DOWN_BOX,x,y,w,h,l){
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label("This demo does\nnot work without GL");
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}
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};
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#endif
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// when you change the data, as in this callback, you must call redraw():
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void sides_cb(Fl_Widget *o, void *p) {
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shape_window *sw = (shape_window *)p;
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sw->sides = int(((Fl_Slider *)o)->value());
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sw->redraw();
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}
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int main(int argc, char **argv) {
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Fl_Window window(300, 330);
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// the shape window could be it's own window, but here we make it
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// a child window:
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shape_window sw(10, 10, 280, 280);
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// make it resize:
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window.resizable(&sw);
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// window.size_range(300,330,0,0,1,1,1);
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// add a knob to control it:
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Fl_Hor_Slider slider(50, 295, window.w()-60, 30, "Sides:");
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slider.align(FL_ALIGN_LEFT);
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slider.callback(sides_cb,&sw);
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slider.value(sw.sides);
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slider.step(1);
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slider.bounds(3,40);
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window.end();
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window.show(argc,argv);
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return Fl::run();
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}
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//
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// End of "$Id: shape.cxx,v 1.5.2.1 1999/10/15 09:01:48 bill Exp $".
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//
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