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/***************************************************************************
gb.draw.h
(c) 2000-2017 Benoît Minisini <benoit.minisini@gambas-basic.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
***************************************************************************/
#ifndef __GB_DRAW_H
#define __GB_DRAW_H
#include "gb_common.h"
#include "gambas.h"
#define GB_DRAW_ALIGN_DEFAULT (-1)
#define GB_DRAW_COLOR_DEFAULT (-1)
enum {
GB_DRAW_STATE_NORMAL = 0,
GB_DRAW_STATE_DISABLED = 1,
GB_DRAW_STATE_FOCUS = 2,
GB_DRAW_STATE_HOVER = 4,
GB_DRAW_STATE_ACTIVE = 8,
GB_DRAW_STATE_DEFAULT = 256
};
typedef
void *GB_PICTURE;
typedef
struct {
int width;
int height;
}
GB_PICTURE_INFO;
#ifndef __GB_IMAGE_DEFINED
#define __GB_IMAGE_DEFINED
typedef
void *GB_IMAGE;
#endif
#ifndef __GB_COLOR_DEFINED
#define __GB_COLOR_DEFINED
typedef
unsigned int GB_COLOR;
#endif
typedef
void *GB_FONT;
#define DRAW_INTERFACE_VERSION 1
typedef
struct {
int version;
struct {
void *(*GetCurrent)();
void (*Begin)(void *);
void (*End)();
bool (*IsPainted)(void *);
void (*SetBackground)(GB_COLOR color);
void (*Translate)(float x, float y);
void (*Scale)(float sx, float sy);
}
Paint;
}
DRAW_INTERFACE;
#define DRAW_NORMALIZE(x, y, w, h, sx, sy, sw, sh, width, height) \
if (sw < 0) sw = width; \
if (sh < 0) sh = height; \
if (w < 0) w = sw; \
if (h < 0) h = sh; \
if (sx < 0) sw += sx, sx = 0; \
if (sy < 0) sh += sy, sy = 0; \
if (sw > ((width) - sx)) \
sw = ((width) - sx); \
if (sh > ((height) - sy)) \
sh = ((height) - sy); \
if (sx >= (width) || sy >= (height) || sw <= 0 || sh <= 0) \
return;
#endif
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