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[client] wayland: implement support for other cursors

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This commit is contained in:
Quantum 2021-07-29 17:34:17 -04:00 committed by Geoffrey McRae
parent da28db2ca4
commit 11a5864969
4 changed files with 86 additions and 15 deletions
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1
client/displayservers/Wayland/CMakeLists.txt
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@ -4,6 +4,7 @@ project(displayserver_Wayland LANGUAGES C)
find_package(PkgConfig)
pkg_check_modules(DISPLAYSERVER_Wayland REQUIRED IMPORTED_TARGET
wayland-client
wayland-cursor
)
set(DISPLAYSERVER_Wayland_OPT_PKGCONFIG_LIBRARIES "")

88
client/displayservers/Wayland/cursor.c
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@ -38,7 +38,7 @@ static const uint32_t cursorBitmap[] = {
0x000000, 0x000000, 0x000000, 0x000000,
};
static struct wl_buffer * createCursorBuffer(void)
static struct wl_buffer * createSquareCursorBuffer(void)
{
int fd = memfd_create("lg-cursor", 0);
if (fd < 0)
@ -74,6 +74,58 @@ fail:
return result;
}
static bool loadThemedCursor(const char * name, struct wl_surface ** surface,
struct Point * hotspot)
{
struct wl_cursor * cursor = wl_cursor_theme_get_cursor(wlWm.cursorTheme, name);
if (!cursor)
return false;
struct wl_buffer * buffer = wl_cursor_image_get_buffer(cursor->images[0]);
if (!buffer)
return false;
*surface = wl_compositor_create_surface(wlWm.compositor);
if (!*surface)
return NULL;
wl_surface_attach(*surface, buffer, 0, 0);
wl_surface_commit(*surface);
*hotspot = (struct Point) {
.x = cursor->images[0]->hotspot_x,
.y = cursor->images[0]->hotspot_y,
};
return true;
}
static const char ** nameLists[LG_POINTER_COUNT] = {
[LG_POINTER_ARROW ] = (const char *[]) { "left_ptr", "arrow", NULL },
[LG_POINTER_INPUT ] = (const char *[]) { "text", "xterm", "ibeam", NULL },
[LG_POINTER_MOVE ] = (const char *[]) {
"move", "4498f0e0c1937ffe01fd06f973665830", "9081237383d90e509aa00f00170e968f", NULL
},
[LG_POINTER_RESIZE_NS ] = (const char *[]) {
"sb_v_double_arrow", "size_ver", "v_double_arrow",
"2870a09082c103050810ffdffffe0204", "00008160000006810000408080010102", NULL
},
[LG_POINTER_RESIZE_EW ] = (const char *[]) {
"sb_h_double_arrow", "size_hor", "h_double_arrow",
"14fef782d02440884392942c11205230", "028006030e0e7ebffc7f7070c0600140", NULL
},
[LG_POINTER_RESIZE_NESW] = (const char *[]) {
"fd_double_arrow", "size_bdiag", "fcf1c3c7cd4491d801f1e1c78f100000", NULL
},
[LG_POINTER_RESIZE_NWSE] = (const char *[]) {
"bd_double_arrow", "size_fdiag", "c7088f0f3e6c8088236ef8e1e3e70000", NULL
},
[LG_POINTER_HAND ] = (const char *[]) {
"hand", "pointing_hand", "hand1", "hand2", "pointer",
"e29285e634086352946a0e7090d73106", "9d800788f1b08800ae810202380a0822", NULL
},
[LG_POINTER_NOT_ALLOWED] = (const char *[]) { "crossed_circle", "not-allowed", NULL },
};
bool waylandCursorInit(void)
{
if (!wlWm.compositor)
@ -82,27 +134,39 @@ bool waylandCursorInit(void)
return false;
}
wlWm.cursorBuffer = createCursorBuffer();
if (wlWm.cursorBuffer)
wlWm.cursorSquareBuffer = createSquareCursorBuffer();
if (wlWm.cursorSquareBuffer)
{
wlWm.cursor = wl_compositor_create_surface(wlWm.compositor);
wl_surface_attach(wlWm.cursor, wlWm.cursorBuffer, 0, 0);
wl_surface_commit(wlWm.cursor);
wlWm.cursors[LG_POINTER_SQUARE] = wl_compositor_create_surface(wlWm.compositor);
wl_surface_attach(wlWm.cursors[LG_POINTER_SQUARE], wlWm.cursorSquareBuffer, 0, 0);
wl_surface_commit(wlWm.cursors[LG_POINTER_SQUARE]);
}
wlWm.cursorTheme = wl_cursor_theme_load(NULL, 24, wlWm.shm);
if (wlWm.cursorTheme)
for (LG_DSPointer pointer = LG_POINTER_ARROW; pointer < LG_POINTER_COUNT; ++pointer)
for (const char ** names = nameLists[pointer]; *names; ++names)
if (loadThemedCursor(*names, wlWm.cursors + pointer, wlWm.cursorHot + pointer))
break;
return true;
}
void waylandCursorFree(void)
{
if (wlWm.cursor)
wl_surface_destroy(wlWm.cursor);
if (wlWm.cursorBuffer)
wl_buffer_destroy(wlWm.cursorBuffer);
for (int i = 0; i < LG_POINTER_COUNT; ++i)
if (wlWm.cursors[i])
wl_surface_destroy(wlWm.cursors[i]);
if (wlWm.cursorTheme)
wl_cursor_theme_destroy(wlWm.cursorTheme);
if (wlWm.cursorSquareBuffer)
wl_buffer_destroy(wlWm.cursorSquareBuffer);
}
void waylandSetPointer(LG_DSPointer pointer)
{
wlWm.showPointer = pointer != LG_POINTER_NONE;
wl_pointer_set_cursor(wlWm.pointer, wlWm.pointerEnterSerial, wlWm.showPointer ? wlWm.cursor : NULL, 0, 0);
wlWm.cursor = wlWm.cursors[pointer];
wlWm.cursorHotX = wlWm.cursorHot[pointer].x;
wlWm.cursorHotY = wlWm.cursorHot[pointer].y;
wl_pointer_set_cursor(wlWm.pointer, wlWm.pointerEnterSerial, wlWm.cursor, wlWm.cursorHotX, wlWm.cursorHotY);
}

2
client/displayservers/Wayland/input.c
View File

@ -52,7 +52,7 @@ static void pointerEnterHandler(void * data, struct wl_pointer * pointer,
wlWm.pointerInSurface = true;
app_handleEnterEvent(true);
wl_pointer_set_cursor(pointer, serial, wlWm.showPointer ? wlWm.cursor : NULL, 0, 0);
wl_pointer_set_cursor(pointer, serial, wlWm.cursor, wlWm.cursorHotX, wlWm.cursorHotY);
wlWm.pointerEnterSerial = serial;
wlWm.cursorX = wl_fixed_to_double(sxW);

10
client/displayservers/Wayland/wayland.h
View File

@ -22,6 +22,7 @@
#include <sys/types.h>
#include <wayland-client.h>
#include <wayland-cursor.h>
#if defined(ENABLE_EGL) || defined(ENABLE_OPENGL)
# include <wayland-egl.h>
@ -127,8 +128,13 @@ struct WaylandDSState
struct zxdg_toplevel_decoration_v1 * xdgToplevelDecoration;
#endif
struct wl_surface * cursor;
struct wl_buffer * cursorBuffer;
struct wl_cursor_theme * cursorTheme;
struct wl_buffer * cursorSquareBuffer;
struct wl_surface * cursors[LG_POINTER_COUNT];
struct Point cursorHot[LG_POINTER_COUNT];
struct wl_surface * cursor;
int cursorHotX;
int cursorHotY;
struct wl_data_device_manager * dataDeviceManager;