1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* Copyright 2008-2013 Steven Dalton
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
namespace cusp
{
namespace opengl
{
namespace spy
{
void world_to_screen(float wx, float wy, int *x, int *y);
void screen_to_world(int x, int y, double *wx, double *wy);
float scale_to_world(float val);
void world_extents(float &x1, float &y, float &x2, float &y2);
#ifndef GL_UTIL_GLUT_TEXT_FONT
#define GL_UTIL_GLUT_TEXT_FONT GLUT_BITMAP_HELVETICA_18
#endif // GL_UTIL_GLUT_TEXT_FONT
void output_text_string(float x, float y, const char *string, void* font = GL_UTIL_GLUT_TEXT_FONT);
void text_extends(int *width, int *height, const char *string, void* font = GL_UTIL_GLUT_TEXT_FONT);
void text_extends_world(float *width, float *height, const char *string, void* font = GL_UTIL_GLUT_TEXT_FONT);
const unsigned int GL_U_TEXT_WORLD_COORDS = 0; // default option
const unsigned int GL_U_TEXT_SCREEN_COORDS = 1;
const unsigned int GL_U_TEXT_LEFT_X = 0; // default option
const unsigned int GL_U_TEXT_CENTER_X = 2;
const unsigned int GL_U_TEXT_RIGHT_X = 4;
const unsigned int GL_U_TEXT_BOTTOM_Y = 0;
const unsigned int GL_U_TEXT_CENTER_Y = 8;
const unsigned int GL_U_TEXT_TOP_Y = 16;
void draw_text(float x, float y, const char *string,
unsigned int flags = 0,
void* font = GL_UTIL_GLUT_TEXT_FONT);
void* get_window_data(int window_id);
void set_window_data(int window_id, void* data);
} // end spy
} // end opengl
} // end cusp
#include <cusp/opengl/spy/detail/gl_util.inl>
|
