63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#include "draw_rectangular_marquee.h"
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#include "gl.h"
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#include "glu.h"
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#include "../material_colors.h"
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IGL_INLINE void igl::opengl2::draw_rectangular_marquee(
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const int from_x,
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const int from_y,
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const int to_x,
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const int to_y)
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{
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using namespace std;
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int l;
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glGetIntegerv(GL_LIGHTING,&l);
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int s;
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glGetIntegerv(GL_LINE_STIPPLE,&s);
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double lw;
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glGetDoublev(GL_LINE_WIDTH,&lw);
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glDisable(GL_LIGHTING);
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// Screen space for this viewport
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GLint viewport[4];
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glGetIntegerv(GL_VIEWPORT,viewport);
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const int width = viewport[2];
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const int height = viewport[3];
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity();
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gluOrtho2D(0,width,0,height);
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glLoadIdentity();
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glEnable(GL_LINE_STIPPLE);
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glLineStipple(3,0xAAAA);
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glLineWidth(1);
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glColor4f(0.2,0.2,0.2,1);
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glBegin(GL_LINE_STRIP);
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glVertex2d(from_x,from_y);
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glVertex2d(to_x,from_y);
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glVertex2d(to_x,to_y);
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glVertex2d(from_x,to_y);
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glVertex2d(from_x,from_y);
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glEnd();
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glPopMatrix();
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glMatrixMode(GL_PROJECTION);
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glPopMatrix();
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glMatrixMode(GL_MODELVIEW);
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glLineWidth(lw);
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(s ? glEnable(GL_LINE_STIPPLE):glDisable(GL_LINE_STIPPLE));
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(l ? glEnable(GL_LIGHTING):glDisable(GL_LIGHTING));
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}
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