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6113f9b94e
Introduce a new icon particle. It follows the icon spec (https://specifications.freedesktop.org/icon-theme-spec/latest/index.html). Rendering logic is taken from fuzzel (using nanosvg + libpng), while loading logic is taken from sway. Standard usage is with `use-tag = false` which expands the provided string template and then loads the string as the icon name. There are settings to manually override the base paths, themes, etc. The second usage which is required for tray support is a special icon tag that transfers raw pixmaps. With `use-tag = true` it first expands the string, and then uses that output to find an icon pixmap tag. To reduce memory usage, themes are reference counted so they can be passed down the configuration stack without having to load them in multiple times. For programmability, a fallback particle can be specified if no icon/tag is found `fallback: ...`. And the new icon pixmap tag can be existence checked in map conditions using `+{tag_name}`. Future work to be done in follow up diffs: 1. Icon caching. Currently performs an icon lookup on each instantiation & a render on each refresh. 2. Theme caching. Changing theme directories results in a new "theme collection" being created resulting in the possibility of duplicated theme loading.
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
//
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// Copyright (c) 2013 Mikko Mononen memon@inside.org
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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// 3. This notice may not be removed or altered from any source distribution.
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//
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#include <stdio.h>
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#include <string.h>
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#include <float.h>
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb_image_write.h"
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#define NANOSVG_IMPLEMENTATION
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#include "nanosvg.h"
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#define NANOSVGRAST_IMPLEMENTATION
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#include "nanosvgrast.h"
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int main()
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{
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NSVGimage *image = NULL;
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NSVGrasterizer *rast = NULL;
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unsigned char* img = NULL;
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int w, h;
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const char* filename = "../example/23.svg";
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printf("parsing %s\n", filename);
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image = nsvgParseFromFile(filename, "px", 96.0f);
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if (image == NULL) {
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printf("Could not open SVG image.\n");
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goto error;
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}
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w = (int)image->width;
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h = (int)image->height;
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rast = nsvgCreateRasterizer();
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if (rast == NULL) {
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printf("Could not init rasterizer.\n");
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goto error;
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}
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img = malloc(w*h*4);
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if (img == NULL) {
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printf("Could not alloc image buffer.\n");
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goto error;
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}
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printf("rasterizing image %d x %d\n", w, h);
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nsvgRasterize(rast, image, 0,0,1, img, w, h, w*4);
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printf("writing svg.png\n");
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stbi_write_png("svg.png", w, h, 4, img, w*4);
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error:
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nsvgDeleteRasterizer(rast);
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nsvgDelete(image);
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return 0;
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}
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