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45f73b58a1
padding_x in lab_img_render() was just to make sure window icons in the titlebar doesn't get too close to adjacent buttons and it didn't felt clean. To remove it from lab_img, this commit changes the size of window icon buffers from (window.button.width)x(window.button.height) to (window.button.width * 0.8)x(window.button.height) and horizontally slide it by (window.button.width * 0.1) to keep the horizontal padding. Note that the size of the hitbox for a window icon is kept the same and nothing is changed from user's perspective.
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef LABWC_IMG_H
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#define LABWC_IMG_H
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#include <cairo.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <wayland-util.h>
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enum lab_img_type {
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LAB_IMG_PNG,
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LAB_IMG_SVG,
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LAB_IMG_XBM,
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LAB_IMG_XPM,
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};
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struct lab_img {
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struct wl_array modifiers; /* lab_img_modifier_func_t */
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struct lab_img_data *data;
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};
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struct lab_img *lab_img_load(enum lab_img_type type, const char *path,
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float *xbm_color);
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/**
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* lab_img_load_from_bitmap() - create button from monochrome bitmap
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* @bitmap: bitmap data array in hexadecimal xbm format
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* @rgba: color
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*
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* Example bitmap: char button[6] = { 0x3f, 0x3f, 0x21, 0x21, 0x21, 0x3f };
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*/
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struct lab_img *lab_img_load_from_bitmap(const char *bitmap, float *rgba);
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typedef void (*lab_img_modifier_func_t)(cairo_t *cairo, int w, int h);
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/**
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* lab_img_copy() - Copy lab_img
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* @img: source image
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*
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* This function duplicates lab_img, but its internal cache for the image is
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* shared.
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*/
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struct lab_img *lab_img_copy(struct lab_img *img);
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/**
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* lab_img_add_modifier() - Add a modifier function to lab_img
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* @img: source image
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* @modifier: function that applies modifications to the image.
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* @theme: pointer to theme passed to @modifier.
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*
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* "Modifiers" are functions that perform some additional drawing operation
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* after the image is rendered on a buffer with lab_img_render(). For example,
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* hover effects for window buttons can be drawn over the rendered image.
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*/
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void lab_img_add_modifier(struct lab_img *img, lab_img_modifier_func_t modifier);
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/**
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* lab_img_render() - Render lab_img to a buffer
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* @img: source image
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* @width: width of the created buffer
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* @height: height of the created buffer
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* @scale: scale of the created buffer
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*/
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struct lab_data_buffer *lab_img_render(struct lab_img *img,
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int width, int height, double scale);
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/**
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* lab_img_destroy() - destroy lab_img
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* @img: lab_img to destroy
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*/
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void lab_img_destroy(struct lab_img *img);
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/**
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* lab_img_equal() - Returns true if two images draw the same content
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*/
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bool lab_img_equal(struct lab_img *img_a, struct lab_img *img_b);
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#endif /* LABWC_IMG_H */
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