/usr/include/drawtk.h is in libdrawtk-dev 2.0-2.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 2009-2012 EPFL (Ecole Polytechnique Fédérale de Lausanne)
Laboratory CNBI (Chair in Non-Invasive Brain-Machine Interface)
Nicolas Bourdaud <nicolas.bourdaud@epfl.ch>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FEEDBACK_H
#define FEEDBACK_H
#ifdef __cplusplus
extern "C" {
#endif
/* Window functions */
typedef struct dtk_window* dtk_hwnd;
dtk_hwnd dtk_create_window(unsigned int width, unsigned int height, unsigned int x, unsigned int y, unsigned int bpp, const char* caption);
void dtk_make_current_window(dtk_hwnd wnd);
void dtk_clear_screen(dtk_hwnd wnd);
void dtk_update_screen(dtk_hwnd wnd);
void dtk_window_getsize(dtk_hwnd wnd, unsigned int* w, unsigned int* h);
void dtk_close(dtk_hwnd wnd);
void dtk_bgcolor(float* bgcolor);
/* Image functions */
typedef struct dtk_texture* dtk_htex;
dtk_htex dtk_load_image(const char* filename, unsigned int mipmap_maxlevel);
void dtk_destroy_texture(dtk_htex tex);
void dtk_texture_getsize(dtk_htex, unsigned int* w, unsigned int* h);
/* Font functions */
typedef struct dtk_font* dtk_hfont;
dtk_hfont dtk_load_font(const char* fontname);
void dtk_destroy_font(dtk_hfont font);
/* Handle to shape structure */
typedef struct dtk_shape* dtk_hshape;
#define DTK_BOTTOM 0x00
#define DTK_VMID 0x01
#define DTK_TOP 0x02
#define DTK_LEFT 0x00
#define DTK_HMID 0x10
#define DTK_RIGHT 0x20
#define DTK_TRIANGLES 0
#define DTK_TRIANGLE_STRIP 1
#define DTK_TRIANGLE_FAN 2
#define DTK_LINES 3
#define DTK_LINE_STRIP 4
#define DTK_IGNR 0x01
#define DTK_IGNG 0x02
#define DTK_IGNB 0x04
#define DTK_IGNA 0x08
#define DTK_IGNRGB DTK_IGNR | DTK_IGNG | DTK_IGNB
/* Shape creation functions */
dtk_hshape dtk_create_rectangle_2p(dtk_hshape shp, float p1_x, float p1_y, float p2_x, float p2_y, int isfull, const float* color);
dtk_hshape dtk_create_rectangle_hw(dtk_hshape shp, float cx, float cy, float height, float width, int isfull, const float* color);
dtk_hshape dtk_create_triangle(dtk_hshape shp, float x1, float y1, float x2, float y2, float x3, float y3, int isfull, const float* color);
dtk_hshape dtk_create_circle(dtk_hshape shp, float cx, float cy, float r, int isfull, const float* color, unsigned int numpoints);
dtk_hshape dtk_create_circle_str(dtk_hshape shp, float cx, float cy, float r, float thick, const float* color, unsigned int numpoints);
dtk_hshape dtk_create_shape(dtk_hshape shp, unsigned int ind_num, const float* vertex_array, int isFull, const float* color);
dtk_hshape dtk_create_line(dtk_hshape shp, float x1, float y1, float x2, float y2, const float *color);
dtk_hshape dtk_create_arrow(dtk_hshape shp, float cx, float cy, float width, float height, int isfull, const float* color);
dtk_hshape dtk_create_cross(dtk_hshape shp, float cx, float cy, float width, const float* color);
dtk_hshape dtk_create_image(dtk_hshape shp, float x, float y, float width, float height, const float* color, dtk_htex image);
dtk_hshape dtk_create_string(struct dtk_shape* shp, const char* text,
float size, float x, float y,
unsigned int alignment,
const float* color, dtk_hfont font);
dtk_hshape dtk_create_composite_shape(dtk_hshape shp, unsigned int num_shp,
const dtk_hshape* array, int free_children);
dtk_hshape dtk_create_complex_shape(dtk_hshape shp,
unsigned int nvert, const float* vertpos,
const float* vertcolor, const float* texcoords,
unsigned int nind, const unsigned int *ind,
unsigned int type, dtk_htex tex);
/* Shape displacement functions */
void dtk_move_shape(dtk_hshape shp, float x, float y);
void dtk_relmove_shape(dtk_hshape shp, float dx, float dy);
void dtk_rotate_shape(dtk_hshape shp, float deg);
void dtk_relrotate_shape(dtk_hshape shp, float ddeg);
void dtk_setcolor_shape(dtk_hshape shp, const float* color, unsigned int mask);
/* Draw a shape */
void dtk_draw_shape(const dtk_hshape shp);
/* Destroy shape */
void dtk_destroy_shape(dtk_hshape shp);
#ifdef __cplusplus
}
#endif
#endif
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