/* * draw.h - draw functions header * * Copyright © 2007-2008 Julien Danjou * * 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 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 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 AWESOME_COMMON_DRAW_H #define AWESOME_COMMON_DRAW_H #include #include #include #include "common/array.h" #include "common/list.h" #include "common/buffer.h" typedef struct { unsigned initialized : 1; uint32_t pixel; uint16_t red; uint16_t green; uint16_t blue; uint16_t alpha; } xcolor_t; typedef enum { AlignLeft = 0, AlignRight, AlignCenter, AlignFlex, AlignAuto } alignment_t; typedef struct vector_t vector_t; struct vector_t { /** Co-ords of starting point */ int16_t x; int16_t y; /** Offset to starting point */ int16_t x_offset; int16_t y_offset; }; typedef struct area_t area_t; struct area_t { /** Co-ords of upper left corner */ int16_t x; int16_t y; uint16_t width; uint16_t height; }; DO_ARRAY(area_t, area, DO_NOTHING) #define AREA_LEFT(a) ((a).x) #define AREA_TOP(a) ((a).y) #define AREA_RIGHT(a) ((a).x + (a).width) #define AREA_BOTTOM(a) ((a).y + (a).height) static inline bool area_intersect_area(area_t a, area_t b) { return (b.x < a.x + a.width && b.x + b.width > a.x && b.y < a.y + a.height && b.y + b.height > a.y); } static inline area_t area_get_intersect_area(area_t a, area_t b) { area_t g; g.x = MAX(a.x, b.x); g.y = MAX(a.y, b.y); g.width = MIN(a.x + a.width, b.x + b.width) - g.x; g.height = MIN(a.y + a.height, b.y + b.height) - g.y; return g; } typedef struct { PangoFontDescription *desc; int height; } font_t; typedef struct { xcb_connection_t *connection; xcb_pixmap_t pixmap; xcb_visualtype_t *visual; int width; int height; int phys_screen; int depth; cairo_t *cr; cairo_surface_t *surface; PangoLayout *layout; xcolor_t fg; xcolor_t bg; } draw_context_t; typedef struct { void *data; size_t width; size_t height; } draw_image_t; draw_context_t * draw_context_new(xcb_connection_t *, int, int, int, xcb_drawable_t, const xcolor_t *, const xcolor_t*); /** Delete a draw context. * \param ctx The draw_context_t to delete. */ static inline void draw_context_delete(draw_context_t **ctx) { if(*ctx) { if((*ctx)->layout) g_object_unref((*ctx)->layout); if((*ctx)->surface) cairo_surface_destroy((*ctx)->surface); if((*ctx)->cr) cairo_destroy((*ctx)->cr); p_delete(ctx); } } font_t *draw_font_new(xcb_connection_t *, int, const char *); void draw_font_delete(font_t **); char * draw_iso2utf8(const char *, size_t); static inline bool a_iso2utf8(char **dest, const char *str, ssize_t len) { char *utf8; if((utf8 = draw_iso2utf8(str, len))) { *dest = utf8; return true; } *dest = a_strdup(str); return false; } typedef struct { xcb_connection_t *connection; PangoAttrList *attr_list; int phys_screen; char *text; ssize_t len; alignment_t align; struct { int left, right; } margin; bool has_bg_color; xcolor_t bg_color; draw_image_t *bg_image; alignment_t bg_align; bool bg_resize; struct { int offset; xcolor_t color; } shadow; struct { int width; xcolor_t color; } border; } draw_parser_data_t; void draw_parser_data_init(draw_parser_data_t *); void draw_parser_data_wipe(draw_parser_data_t *); bool draw_text_markup_expand(draw_parser_data_t *, const char *, ssize_t); void draw_text(draw_context_t *, font_t *, area_t, const char *, ssize_t len, draw_parser_data_t *); void draw_rectangle(draw_context_t *, area_t, float, bool, const xcolor_t *); void draw_rectangle_gradient(draw_context_t *, area_t, float, bool, vector_t, const xcolor_t *, const xcolor_t *, const xcolor_t *); void draw_graph_setup(draw_context_t *); void draw_graph(draw_context_t *, area_t, int *, int *, int, position_t, vector_t, const xcolor_t *, const xcolor_t *, const xcolor_t *); void draw_graph_line(draw_context_t *, area_t, int *, int, position_t, vector_t, const xcolor_t *, const xcolor_t *, const xcolor_t *); draw_image_t *draw_image_new(const char *); void draw_image_delete(draw_image_t **); void draw_image(draw_context_t *, int, int, int, draw_image_t *); void draw_image_from_argb_data(draw_context_t *, int, int, int, int, int, unsigned char *); void draw_rotate(draw_context_t *, xcb_drawable_t, xcb_drawable_t, int, int, int, int, double, int, int); area_t draw_text_extents(xcb_connection_t *, int, font_t *, const char *, ssize_t, draw_parser_data_t *); alignment_t draw_align_fromstr(const char *, ssize_t); const char *draw_align_tostr(alignment_t); typedef struct { union { xcb_alloc_color_cookie_t cookie_hexa; xcb_alloc_named_color_cookie_t cookie_named; }; uint16_t alpha; xcolor_t *color; bool is_hexa, has_error; const char *colstr; } xcolor_init_request_t; xcolor_init_request_t xcolor_init_unchecked(xcb_connection_t *, xcolor_t *, int, const char *, ssize_t); bool xcolor_init_reply(xcb_connection_t *, xcolor_init_request_t); void area_array_remove(area_array_t *, area_t); #endif // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80