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74 lines
1.4 KiB
C
74 lines
1.4 KiB
C
/*
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* gui/icons.c - Icons
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <cairo/cairo.h>
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#include "gui/icons.h"
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cairo_surface_t *icon_delta;
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cairo_surface_t *icon_diff;
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struct read_ctx {
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uint8_t *data;
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unsigned left;
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};
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static uint8_t data_delta[] = {
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#include "icons/delta.hex"
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};
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static uint8_t data_diff[] = {
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#include "icons/diff.hex"
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};
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static cairo_status_t read_data(void *user, unsigned char *data,
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unsigned length)
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{
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struct read_ctx *read_ctx = user;
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if (!read_ctx->left)
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return CAIRO_STATUS_READ_ERROR;
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if (length > read_ctx->left)
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length = read_ctx->left;
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memcpy(data, read_ctx->data, length);
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read_ctx->data += length;
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read_ctx->left -= length;
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_surface_t *get_icon(uint8_t *data, unsigned size)
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{
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struct read_ctx read_ctx = {
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.data = data,
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.left = size,
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};
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return cairo_image_surface_create_from_png_stream(read_data, &read_ctx);
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}
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void icons_init(void)
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{
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icon_delta = get_icon(data_delta, sizeof(data_delta));
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icon_diff = get_icon(data_diff, sizeof(data_diff));
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}
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