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Implement window decorations

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master
Emmanuel Gil Peyrot ago%!(EXTRA string=8 years) committed by linkmauve
parent 9dc18a62a6
commit 9f7ec6b094
3 changed files with 374 additions and 128 deletions
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  1. 162
      src/wl_init.c
  2. 26
      src/wl_platform.h
  3. 314
      src/wl_window.c

162
src/wl_init.c
Unescape View File

@ -42,6 +42,39 @@ static inline int min(int n1, int n2)
return n1 < n2 ? n1 : n2;
}
static _GLFWwindow* findWindowFromDecorationSurface(struct wl_surface* surface, int* which)
{
int focus;
_GLFWwindow* window = _glfw.windowListHead;
if (!which)
which = &focus;
while (window)
{
if (surface == window->wl.decorations.top.surface)
{
*which = topDecoration;
break;
}
if (surface == window->wl.decorations.left.surface)
{
*which = leftDecoration;
break;
}
if (surface == window->wl.decorations.right.surface)
{
*which = rightDecoration;
break;
}
if (surface == window->wl.decorations.bottom.surface)
{
*which = bottomDecoration;
break;
}
window = window->next;
}
return window;
}
static void pointerHandleEnter(void* data,
struct wl_pointer* pointer,
uint32_t serial,
@ -53,10 +86,16 @@ static void pointerHandleEnter(void* data,
if (!surface)
return;
int focus = 0;
_GLFWwindow* window = wl_surface_get_user_data(surface);
if (!window)
return;
{
window = findWindowFromDecorationSurface(surface, &focus);
if (!window)
return;
}
window->wl.decorations.focus = focus;
_glfw.wl.pointerSerial = serial;
_glfw.wl.pointerFocus = window;
@ -83,6 +122,39 @@ static void pointerHandleLeave(void* data,
_glfwInputCursorEnter(window, GLFW_FALSE);
}
static void setCursor(const char* name)
{
struct wl_buffer* buffer;
struct wl_cursor* cursor;
struct wl_cursor_image* image;
struct wl_surface* surface = _glfw.wl.cursorSurface;
cursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme,
name);
if (!cursor)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Standard cursor not found");
return;
}
image = cursor->images[0];
if (!image)
return;
buffer = wl_cursor_image_get_buffer(image);
if (!buffer)
return;
wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerSerial,
surface,
image->hotspot_x,
image->hotspot_y);
wl_surface_attach(surface, buffer, 0, 0);
wl_surface_damage(surface, 0, 0,
image->width, image->height);
wl_surface_commit(surface);
}
static void pointerHandleMotion(void* data,
struct wl_pointer* pointer,
uint32_t time,
@ -90,6 +162,7 @@ static void pointerHandleMotion(void* data,
wl_fixed_t sy)
{
_GLFWwindow* window = _glfw.wl.pointerFocus;
const char* cursorName;
if (!window)
return;
@ -102,9 +175,43 @@ static void pointerHandleMotion(void* data,
window->wl.cursorPosY = wl_fixed_to_double(sy);
}
_glfwInputCursorPos(window,
wl_fixed_to_double(sx),
wl_fixed_to_double(sy));
switch (window->wl.decorations.focus)
{
case mainWindow:
_glfwInputCursorPos(window,
wl_fixed_to_double(sx),
wl_fixed_to_double(sy));
return;
case topDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
cursorName = "n-resize";
else
cursorName = "left_ptr";
break;
case leftDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
cursorName = "nw-resize";
else
cursorName = "w-resize";
break;
case rightDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
cursorName = "ne-resize";
else
cursorName = "e-resize";
break;
case bottomDecoration:
if (window->wl.cursorPosX < _GLFW_DECORATION_WIDTH)
cursorName = "sw-resize";
else if (window->wl.cursorPosX > window->wl.width + _GLFW_DECORATION_WIDTH)
cursorName = "se-resize";
else
cursorName = "s-resize";
break;
default:
assert(0);
}
setCursor(cursorName);
}
static void pointerHandleButton(void* data,
@ -119,6 +226,47 @@ static void pointerHandleButton(void* data,
if (!window)
return;
switch (window->wl.decorations.focus)
{
case mainWindow:
break;
case topDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, WL_SHELL_SURFACE_RESIZE_TOP);
else
wl_shell_surface_move(window->wl.shellSurface, _glfw.wl.seat, serial);
return;
case leftDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, WL_SHELL_SURFACE_RESIZE_TOP_LEFT);
else
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, WL_SHELL_SURFACE_RESIZE_LEFT);
return;
case rightDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, WL_SHELL_SURFACE_RESIZE_TOP_RIGHT);
else
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, WL_SHELL_SURFACE_RESIZE_RIGHT);
return;
case bottomDecoration:
if (window->wl.cursorPosX < _GLFW_DECORATION_WIDTH)
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, WL_SHELL_SURFACE_RESIZE_BOTTOM_LEFT);
else if (window->wl.cursorPosX > window->wl.width + _GLFW_DECORATION_WIDTH)
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, WL_SHELL_SURFACE_RESIZE_BOTTOM_RIGHT);
else
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, WL_SHELL_SURFACE_RESIZE_BOTTOM);
return;
default:
assert(0);
}
_glfw.wl.pointerSerial = serial;
@ -283,7 +431,11 @@ static void keyboardHandleEnter(void* data,
_GLFWwindow* window = wl_surface_get_user_data(surface);
if (!window)
return;
{
window = findWindowFromDecorationSurface(surface, NULL);
if (!window)
return;
}
_glfw.wl.keyboardFocus = window;
_glfwInputWindowFocus(window, GLFW_TRUE);

26
src/wl_platform.h
Unescape View File

@ -141,6 +141,26 @@ typedef xkb_keysym_t (* PFN_xkb_compose_state_get_one_sym)(struct xkb_compose_st
#define xkb_compose_state_get_one_sym _glfw.wl.xkb.compose_state_get_one_sym
#endif
#define _GLFW_DECORATION_WIDTH 4
#define _GLFW_DECORATION_TOP 24
typedef enum _GLFWdecorationSideWayland
{
mainWindow,
topDecoration,
leftDecoration,
rightDecoration,
bottomDecoration,
} _GLFWdecorationSideWayland;
typedef struct _GLFWdecorationWayland
{
struct wl_surface* surface;
struct wl_subsurface* subsurface;
struct wp_viewport* viewport;
} _GLFWdecorationWayland;
// Wayland-specific per-window data
//
@ -183,6 +203,12 @@ typedef struct _GLFWwindowWayland
// This is a hack to prevent auto-iconification on creation.
GLFWbool justCreated;
struct {
struct wl_buffer* buffer;
_GLFWdecorationWayland top, left, right, bottom;
int focus;
} decorations;
} _GLFWwindowWayland;
// Wayland-specific global data

314
src/wl_window.c
Unescape View File

@ -95,6 +95,193 @@ static const struct wl_shell_surface_listener shellSurfaceListener = {
handlePopupDone
};
static int
createTmpfileCloexec(char* tmpname)
{
int fd;
fd = mkostemp(tmpname, O_CLOEXEC);
if (fd >= 0)
unlink(tmpname);
return fd;
}
/*
* Create a new, unique, anonymous file of the given size, and
* return the file descriptor for it. The file descriptor is set
* CLOEXEC. The file is immediately suitable for mmap()'ing
* the given size at offset zero.
*
* The file should not have a permanent backing store like a disk,
* but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
*
* The file name is deleted from the file system.
*
* The file is suitable for buffer sharing between processes by
* transmitting the file descriptor over Unix sockets using the
* SCM_RIGHTS methods.
*
* posix_fallocate() is used to guarantee that disk space is available
* for the file at the given size. If disk space is insufficent, errno
* is set to ENOSPC. If posix_fallocate() is not supported, program may
* receive SIGBUS on accessing mmap()'ed file contents instead.
*/
static int
createAnonymousFile(off_t size)
{
static const char template[] = "/glfw-shared-XXXXXX";
const char* path;
char* name;
int fd;
int ret;
path = getenv("XDG_RUNTIME_DIR");
if (!path)
{
errno = ENOENT;
return -1;
}
name = calloc(strlen(path) + sizeof(template), 1);
strcpy(name, path);
strcat(name, template);
fd = createTmpfileCloexec(name);
free(name);
if (fd < 0)
return -1;
ret = posix_fallocate(fd, 0, size);
if (ret != 0)
{
close(fd);
errno = ret;
return -1;
}
return fd;
}
static struct wl_buffer* createShmBuffer(const GLFWimage* image)
{
struct wl_shm_pool* pool;
struct wl_buffer* buffer;
int stride = image->width * 4;
int length = image->width * image->height * 4;
void* data;
int fd, i;
fd = createAnonymousFile(length);
if (fd < 0)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Creating a buffer file for %d B failed: %m",
length);
return GLFW_FALSE;
}
data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (data == MAP_FAILED)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: mmap failed: %m");
close(fd);
return GLFW_FALSE;
}
pool = wl_shm_create_pool(_glfw.wl.shm, fd, length);
close(fd);
unsigned char* source = (unsigned char*) image->pixels;
unsigned char* target = data;
for (i = 0; i < image->width * image->height; i++, source += 4)
{
unsigned int alpha = source[3];
*target++ = (unsigned char) ((source[2] * alpha) / 255);
*target++ = (unsigned char) ((source[1] * alpha) / 255);
*target++ = (unsigned char) ((source[0] * alpha) / 255);
*target++ = (unsigned char) alpha;
}
buffer =
wl_shm_pool_create_buffer(pool, 0,
image->width,
image->height,
stride, WL_SHM_FORMAT_ARGB8888);
munmap(data, length);
wl_shm_pool_destroy(pool);
return buffer;
}
static void createDecoration(_GLFWdecorationWayland* decoration,
struct wl_surface* parent,
struct wl_buffer* buffer, int x, int y,
int width, int height)
{
decoration->surface = wl_compositor_create_surface(_glfw.wl.compositor);
decoration->subsurface =
wl_subcompositor_get_subsurface(_glfw.wl.subcompositor,
decoration->surface, parent);
wl_subsurface_set_position(decoration->subsurface, x, y);
decoration->viewport = wp_viewporter_get_viewport(_glfw.wl.viewporter,
decoration->surface);
wp_viewport_set_destination(decoration->viewport, width, height);
wl_surface_attach(decoration->surface, buffer, 0, 0);
wl_surface_commit(decoration->surface);
}
static void createDecorations(_GLFWwindow* window)
{
unsigned char data[] = { 224, 224, 224, 255 };
const GLFWimage image = { 1, 1, data };
struct wl_buffer* buffer = createShmBuffer(&image);
createDecoration(&window->wl.decorations.top, window->wl.surface, buffer,
0, -_GLFW_DECORATION_TOP,
window->wl.width, _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.left, window->wl.surface, buffer,
-_GLFW_DECORATION_WIDTH, -_GLFW_DECORATION_TOP,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.right, window->wl.surface, buffer,
window->wl.width, -_GLFW_DECORATION_TOP,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.bottom, window->wl.surface, buffer,
-_GLFW_DECORATION_WIDTH, window->wl.height,
window->wl.width + 2 * _GLFW_DECORATION_WIDTH, _GLFW_DECORATION_WIDTH);
}
static void resizeWindow(_GLFWwindow* window, int width, int height)
{
wl_egl_window_resize(window->wl.native, width, height, 0, 0);
// Top decoration.
wp_viewport_set_destination(window->wl.decorations.top.viewport, width, _GLFW_DECORATION_TOP);
wl_surface_commit(window->wl.decorations.top.surface);
// Left decoration.
wp_viewport_set_destination(window->wl.decorations.left.viewport,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
wl_surface_commit(window->wl.decorations.left.surface);
// Right decoration.
wl_subsurface_set_position(window->wl.decorations.right.subsurface,
window->wl.width, -_GLFW_DECORATION_TOP);
wp_viewport_set_destination(window->wl.decorations.right.viewport,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
wl_surface_commit(window->wl.decorations.right.surface);
// Bottom decoration.
wl_subsurface_set_position(window->wl.decorations.bottom.subsurface,
-_GLFW_DECORATION_WIDTH, window->wl.height);
wp_viewport_set_destination(window->wl.decorations.bottom.viewport,
width + 2 * _GLFW_DECORATION_WIDTH, _GLFW_DECORATION_WIDTH);
wl_surface_commit(window->wl.decorations.bottom.surface);
}
static void checkScaleChange(_GLFWwindow* window)
{
int scaledWidth, scaledHeight;
@ -121,7 +308,7 @@ static void checkScaleChange(_GLFWwindow* window)
scaledWidth = window->wl.width * scale;
scaledHeight = window->wl.height * scale;
wl_surface_set_buffer_scale(window->wl.surface, scale);
wl_egl_window_resize(window->wl.native, scaledWidth, scaledHeight, 0, 0);
resizeWindow(window, scaledWidth, scaledHeight);
_glfwInputFramebufferSize(window, scaledWidth, scaledHeight);
_glfwInputWindowContentScale(window, scale, scale);
}
@ -232,6 +419,8 @@ static GLFWbool createSurface(_GLFWwindow* window,
if (!window->wl.transparent)
setOpaqueRegion(window);
createDecorations(window);
return GLFW_TRUE;
}
@ -425,18 +614,6 @@ static GLFWbool createXdgSurface(_GLFWwindow* window)
return GLFW_TRUE;
}
static int
createTmpfileCloexec(char* tmpname)
{
int fd;
fd = mkostemp(tmpname, O_CLOEXEC);
if (fd >= 0)
unlink(tmpname);
return fd;
}
static void
handleEvents(int timeout)
{
@ -496,115 +673,6 @@ handleEvents(int timeout)
}
}
/*
* Create a new, unique, anonymous file of the given size, and
* return the file descriptor for it. The file descriptor is set
* CLOEXEC. The file is immediately suitable for mmap()'ing
* the given size at offset zero.
*
* The file should not have a permanent backing store like a disk,
* but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
*
* The file name is deleted from the file system.
*
* The file is suitable for buffer sharing between processes by
* transmitting the file descriptor over Unix sockets using the
* SCM_RIGHTS methods.
*
* posix_fallocate() is used to guarantee that disk space is available
* for the file at the given size. If disk space is insufficent, errno
* is set to ENOSPC. If posix_fallocate() is not supported, program may
* receive SIGBUS on accessing mmap()'ed file contents instead.
*/
static int
createAnonymousFile(off_t size)
{
static const char template[] = "/glfw-shared-XXXXXX";
const char* path;
char* name;
int fd;
int ret;
path = getenv("XDG_RUNTIME_DIR");
if (!path)
{
errno = ENOENT;
return -1;
}
name = calloc(strlen(path) + sizeof(template), 1);
strcpy(name, path);
strcat(name, template);
fd = createTmpfileCloexec(name);
free(name);
if (fd < 0)
return -1;
ret = posix_fallocate(fd, 0, size);
if (ret != 0)
{
close(fd);
errno = ret;
return -1;
}
return fd;
}
static struct wl_buffer* createShmBuffer(const GLFWimage* image)
{
struct wl_shm_pool* pool;
struct wl_buffer* buffer;
int stride = image->width * 4;
int length = image->width * image->height * 4;
void* data;
int fd, i;
fd = createAnonymousFile(length);
if (fd < 0)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Creating a buffer file for %d B failed: %m",
length);
return GLFW_FALSE;
}
data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (data == MAP_FAILED)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Cursor mmap failed: %m");
close(fd);
return GLFW_FALSE;
}
pool = wl_shm_create_pool(_glfw.wl.shm, fd, length);
close(fd);
unsigned char* source = (unsigned char*) image->pixels;
unsigned char* target = data;
for (i = 0; i < image->width * image->height; i++, source += 4)
{
unsigned int alpha = source[3];
*target++ = (unsigned char) ((source[2] * alpha) / 255);
*target++ = (unsigned char) ((source[1] * alpha) / 255);
*target++ = (unsigned char) ((source[0] * alpha) / 255);
*target++ = (unsigned char) alpha;
}
buffer =
wl_shm_pool_create_buffer(pool, 0,
image->width,
image->height,
stride, WL_SHM_FORMAT_ARGB8888);
munmap(data, length);
wl_shm_pool_destroy(pool);
return buffer;
}
// Translates a GLFW standard cursor to a theme cursor name
//
static char *translateCursorShape(int shape)
@ -783,7 +851,7 @@ void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
int scaledHeight = height * window->wl.scale;
window->wl.width = width;
window->wl.height = height;
wl_egl_window_resize(window->wl.native, scaledWidth, scaledHeight, 0, 0);
resizeWindow(window, scaledWidth, scaledHeight);
if (!window->wl.transparent)
setOpaqueRegion(window);
_glfwInputFramebufferSize(window, scaledWidth, scaledHeight);

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