emersion
7 years ago
parent
2dccb11741
commit
8605243459
@ -1,44 +1,14 @@
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#ifndef _ROOTSTON_XCURSOR_H
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#define _ROOTSTON_XCURSOR_H
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#include <wayland-server.h>
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#include <wlr/xcursor.h>
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#include <wlr/xwayland.h>
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#include <wlr/types/wlr_cursor.h>
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#include <stdint.h>
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#define ROOTS_XCURSOR_SIZE 16
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struct roots_xcursor_scaled_theme {
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uint32_t scale;
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struct wlr_xcursor_theme *theme;
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struct wl_list link;
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};
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#define ROOTS_XCURSOR_DEFAULT "left_ptr"
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#define ROOTS_XCURSOR_MOVE "grabbing"
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#define ROOTS_XCURSOR_ROTATE "grabbing"
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struct roots_xcursor_theme {
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char *name;
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struct wl_list scaled_themes; // roots_xcursor_scaled_theme::link
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};
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struct roots_xcursor_theme *roots_xcursor_theme_create(const char *name);
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void roots_xcursor_theme_destroy(struct roots_xcursor_theme *theme);
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int roots_xcursor_theme_load(struct roots_xcursor_theme *theme,
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uint32_t scale);
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void roots_xcursor_theme_set_default(struct roots_xcursor_theme *theme,
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struct wlr_cursor *cursor);
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void roots_xcursor_theme_set_move(struct roots_xcursor_theme *theme,
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struct wlr_cursor *cursor);
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void roots_xcursor_theme_set_resize(struct roots_xcursor_theme *theme,
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struct wlr_cursor *cursor, uint32_t edges);
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void roots_xcursor_theme_set_rotate(struct roots_xcursor_theme *theme,
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struct wlr_cursor *cursor);
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void roots_xcursor_theme_xwayland_set_default(struct roots_xcursor_theme *theme,
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struct wlr_xwayland *xwayland);
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const char *roots_xcursor_get_resize_name(uint32_t edges);
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#endif
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@ -0,0 +1,53 @@
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#ifndef WLR_TYPES_WLR_XCURSOR_MANAGER_H
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#define WLR_TYPES_WLR_XCURSOR_MANAGER_H
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#include <wayland-server.h>
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#include <wlr/types/wlr_cursor.h>
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#include <wlr/xcursor.h>
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/**
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* A scaled XCursor theme.
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*/
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struct wlr_xcursor_manager_theme {
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uint32_t scale;
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struct wlr_xcursor_theme *theme;
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struct wl_list link;
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};
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/**
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* Manage multiple XCursor themes with different scales and set `wlr_cursor`
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* images.
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*
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* This manager can be used to display cursor images on multiple outputs having
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* different scale factors.
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*/
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struct wlr_xcursor_manager {
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char *name;
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uint32_t size;
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struct wl_list scaled_themes; // wlr_xcursor_manager_theme::link
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};
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/**
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* Create a new XCursor manager. After initialization, scaled themes need to be
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* loaded with `wlr_xcursor_manager_load`. `size` is the unscaled cursor theme
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* size.
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*/
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struct wlr_xcursor_manager *wlr_xcursor_manager_create(const char *name,
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uint32_t size);
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void wlr_xcursor_manager_destroy(struct wlr_xcursor_manager *manager);
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int wlr_xcursor_manager_load(struct wlr_xcursor_manager *manager,
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uint32_t scale);
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struct wlr_xcursor *wlr_xcursor_manager_get_xcursor(
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struct wlr_xcursor_manager *manager, const char *name, uint32_t scale);
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/**
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* Set a `wlr_cursor` image. The manager uses all currently loaded scaled
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* themes.
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*/
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void wlr_xcursor_manager_set_cursor_image(struct wlr_xcursor_manager *manager,
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const char *name, struct wlr_cursor *cursor);
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#endif
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@ -0,0 +1,84 @@
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#define _POSIX_C_SOURCE 200809L
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#include <stdlib.h>
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#include <string.h>
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#include <wlr/types/wlr_xcursor_manager.h>
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struct wlr_xcursor_manager *wlr_xcursor_manager_create(const char *name,
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uint32_t size) {
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struct wlr_xcursor_manager *manager =
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calloc(1, sizeof(struct wlr_xcursor_manager));
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if (manager == NULL) {
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return NULL;
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}
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if (name != NULL) {
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manager->name = strdup(name);
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}
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manager->size = size;
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wl_list_init(&manager->scaled_themes);
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return manager;
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}
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void wlr_xcursor_manager_destroy(struct wlr_xcursor_manager *manager) {
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if (manager == NULL) {
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return;
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}
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struct wlr_xcursor_manager_theme *theme, *tmp;
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wl_list_for_each_safe(theme, tmp, &manager->scaled_themes, link) {
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wl_list_remove(&theme->link);
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wlr_xcursor_theme_destroy(theme->theme);
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free(theme);
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}
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free(manager->name);
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free(manager);
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}
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int wlr_xcursor_manager_load(struct wlr_xcursor_manager *manager,
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uint32_t scale) {
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struct wlr_xcursor_manager_theme *theme;
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wl_list_for_each(theme, &manager->scaled_themes, link) {
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if (theme->scale == scale) {
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return 0;
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}
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}
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theme = calloc(1, sizeof(struct wlr_xcursor_manager_theme));
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if (theme == NULL) {
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return 1;
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}
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theme->scale = scale;
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theme->theme = wlr_xcursor_theme_load(NULL, manager->size * scale);
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if (theme->theme == NULL) {
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free(theme);
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return 1;
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}
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wl_list_insert(&manager->scaled_themes, &theme->link);
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return 0;
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}
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struct wlr_xcursor *wlr_xcursor_manager_get_xcursor(
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struct wlr_xcursor_manager *manager, const char *name, uint32_t scale) {
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struct wlr_xcursor_manager_theme *theme;
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wl_list_for_each(theme, &manager->scaled_themes, link) {
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if (theme->scale == scale) {
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return wlr_xcursor_theme_get_cursor(theme->theme, name);
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}
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}
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return NULL;
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}
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void wlr_xcursor_manager_set_cursor_image(struct wlr_xcursor_manager *manager,
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const char *name, struct wlr_cursor *cursor) {
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struct wlr_xcursor_manager_theme *theme;
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wl_list_for_each(theme, &manager->scaled_themes, link) {
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struct wlr_xcursor *xcursor =
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wlr_xcursor_theme_get_cursor(theme->theme, name);
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if (xcursor == NULL) {
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continue;
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}
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struct wlr_xcursor_image *image = xcursor->images[0];
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wlr_cursor_set_image(cursor, image->buffer, image->width,
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image->width, image->height, image->hotspot_x, image->hotspot_y,
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theme->scale);
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}
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}
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