mirror of
https://gitlab.freedesktop.org/wayland/wayland.git
synced 2025-10-31 22:25:25 -04:00
Add client side pointer image handling
This commit is contained in:
Kristian Høgsberg
parent
f4cb201392
commit
da275dd09f
1 changed files with 203 additions and 22 deletions
225
clients/window.c
225
clients/window.c
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@ -31,6 +31,7 @@
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#include <cairo.h>
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#include <glib.h>
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#include <glib-object.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <xf86drm.h>
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#define EGL_EGLEXT_PROTOTYPES 1
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@ -69,6 +70,8 @@ struct display {
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char *device_name;
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cairo_surface_t *active_frame, *inactive_frame, *shadow;
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struct xkb_desc *xkb;
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EGLImageKHR *pointer_images;
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struct wl_buffer **pointer_buffers;
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};
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struct window {
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@ -124,6 +127,100 @@ rounded_rect(cairo_t *cr, int x0, int y0, int x1, int y1, int radius)
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cairo_close_path(cr);
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}
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static int
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texture_from_png(const char *filename, int width, int height)
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{
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GdkPixbuf *pixbuf;
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GError *error = NULL;
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void *data;
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GLenum format;
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pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
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width, height,
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FALSE, &error);
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if (error != NULL)
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return -1;
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data = gdk_pixbuf_get_pixels(pixbuf);
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if (gdk_pixbuf_get_has_alpha(pixbuf))
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format = GL_RGBA;
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else
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format = GL_RGB;
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
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width, height, 0, format, GL_UNSIGNED_BYTE, data);
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gdk_pixbuf_unref(pixbuf);
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return 0;
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}
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static const struct {
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const char *filename;
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int hotspot_x, hotspot_y;
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} pointer_images[] = {
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{ DATADIR "/wayland/bottom_left_corner.png", 6, 30 },
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{ DATADIR "/wayland/bottom_right_corner.png", 28, 28 },
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{ DATADIR "/wayland/bottom_side.png", 16, 20 },
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{ DATADIR "/wayland/grabbing.png", 20, 17 },
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{ DATADIR "/wayland/left_ptr.png", 10, 5 },
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{ DATADIR "/wayland/left_side.png", 10, 20 },
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{ DATADIR "/wayland/right_side.png", 30, 19 },
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{ DATADIR "/wayland/top_left_corner.png", 8, 8 },
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{ DATADIR "/wayland/top_right_corner.png", 26, 8 },
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{ DATADIR "/wayland/top_side.png", 18, 8 },
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{ DATADIR "/wayland/xterm.png", 15, 15 }
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};
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static void
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create_pointer_images(struct display *d)
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{
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int i, count;
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GLuint texture;
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const int width = 32, height = 32;
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EGLint name, stride;
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struct wl_visual *visual;
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EGLint image_attribs[] = {
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EGL_WIDTH, 0,
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EGL_HEIGHT, 0,
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EGL_IMAGE_FORMAT_MESA, EGL_IMAGE_FORMAT_ARGB8888_MESA,
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EGL_IMAGE_USE_MESA, EGL_IMAGE_USE_SCANOUT_MESA,
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EGL_NONE
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};
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glGenTextures(1, &texture);
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glBindTexture(GL_TEXTURE_2D, texture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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visual = wl_display_get_argb_visual(d->display);
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image_attribs[1] = width;
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image_attribs[3] = height;
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count = ARRAY_LENGTH(pointer_images);
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d->pointer_images = malloc(count * sizeof *d->pointer_images);
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d->pointer_buffers = malloc(count * sizeof *d->pointer_buffers);
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for (i = 0; i < count; i++) {
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d->pointer_images[i] =
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eglCreateDRMImageMESA(d->dpy, image_attribs);
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glEGLImageTargetTexture2DOES(GL_TEXTURE_2D,
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d->pointer_images[i]);
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eglExportDRMImageMESA(d->dpy,
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d->pointer_images[i],
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&name, NULL, &stride);
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texture_from_png(pointer_images[i].filename, width, height);
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d->pointer_buffers[i] =
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wl_drm_create_buffer(d->drm, name,
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width, height, stride, visual);
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}
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}
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static const cairo_user_data_key_t surface_data_key;
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struct surface_data {
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EGLImageKHR image;
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@ -315,6 +412,100 @@ enum window_state {
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WINDOW_STABLE = 16,
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};
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enum pointer_type {
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POINTER_BOTTOM_LEFT,
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POINTER_BOTTOM_RIGHT,
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POINTER_BOTTOM,
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POINTER_DRAGGING,
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POINTER_LEFT_PTR,
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POINTER_LEFT,
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POINTER_RIGHT,
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POINTER_TOP_LEFT,
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POINTER_TOP_RIGHT,
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POINTER_TOP,
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POINTER_IBEAM,
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};
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static int
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get_pointer_location(struct window *window, int32_t x, int32_t y)
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{
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int vlocation, hlocation;
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const int grip_size = 8;
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if (x < window->margin)
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hlocation = WINDOW_STABLE;
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else if (window->margin <= x && x < window->margin + grip_size)
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hlocation = WINDOW_RESIZING_LEFT;
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else if (x < window->allocation.width - window->margin - grip_size)
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hlocation = WINDOW_MOVING;
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else if (x < window->allocation.width - window->margin)
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hlocation = WINDOW_RESIZING_RIGHT;
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else
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hlocation = WINDOW_STABLE;
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if (y < window->margin)
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vlocation = WINDOW_STABLE;
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else if (window->margin <= y && y < window->margin + grip_size)
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vlocation = WINDOW_RESIZING_TOP;
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else if (y < window->allocation.height - window->margin - grip_size)
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vlocation = WINDOW_MOVING;
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else if (y < window->allocation.height - window->margin)
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vlocation = WINDOW_RESIZING_BOTTOM;
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else
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vlocation = WINDOW_STABLE;
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return vlocation | hlocation;
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}
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static void
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set_pointer_image(struct input *input)
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{
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struct display *display = input->display;
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int pointer, location;
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location = get_pointer_location(input->pointer_focus,
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input->sx, input->sy);
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switch (location) {
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case WINDOW_RESIZING_TOP:
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pointer = POINTER_TOP;
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break;
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case WINDOW_RESIZING_BOTTOM:
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pointer = POINTER_BOTTOM;
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break;
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case WINDOW_RESIZING_LEFT:
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pointer = POINTER_LEFT;
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break;
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case WINDOW_RESIZING_RIGHT:
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pointer = POINTER_RIGHT;
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break;
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case WINDOW_RESIZING_TOP_LEFT:
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pointer = POINTER_TOP_LEFT;
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break;
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case WINDOW_RESIZING_TOP_RIGHT:
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pointer = POINTER_TOP_RIGHT;
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break;
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case WINDOW_RESIZING_BOTTOM_LEFT:
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pointer = POINTER_BOTTOM_LEFT;
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break;
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case WINDOW_RESIZING_BOTTOM_RIGHT:
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pointer = POINTER_BOTTOM_RIGHT;
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break;
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case WINDOW_STABLE:
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wl_input_device_attach(input->input_device,
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NULL, 0, 0);
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return;
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default:
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/* FIXME: We should ask the application here. */
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pointer = POINTER_IBEAM;
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break;
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}
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wl_input_device_attach(input->input_device,
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display->pointer_buffers[pointer],
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pointer_images[pointer].hotspot_x,
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pointer_images[pointer].hotspot_y);
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}
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static void
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window_handle_motion(void *data, struct wl_input_device *input_device,
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uint32_t time,
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@ -326,6 +517,8 @@ window_handle_motion(void *data, struct wl_input_device *input_device,
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input->y = y;
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input->sx = sx;
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input->sy = sy;
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set_pointer_image(input);
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}
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static void window_handle_button(void *data, struct wl_input_device *input_device,
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@ -333,28 +526,12 @@ static void window_handle_button(void *data, struct wl_input_device *input_devic
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{
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struct input *input = data;
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struct window *window = input->pointer_focus;
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int grip_size = 8, vlocation, hlocation;
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int location;
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if (window->margin <= input->sx && input->sx < window->margin + grip_size)
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hlocation = WINDOW_RESIZING_LEFT;
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else if (input->sx < window->allocation.width - window->margin - grip_size)
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hlocation = WINDOW_MOVING;
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else if (input->sx < window->allocation.width - window->margin)
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hlocation = WINDOW_RESIZING_RIGHT;
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else
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hlocation = WINDOW_STABLE;
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if (window->margin <= input->sy && input->sy < window->margin + grip_size)
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vlocation = WINDOW_RESIZING_TOP;
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else if (input->sy < window->allocation.height - window->margin - grip_size)
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vlocation = WINDOW_MOVING;
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else if (input->sy < window->allocation.height - window->margin)
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vlocation = WINDOW_RESIZING_BOTTOM;
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else
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vlocation = WINDOW_STABLE;
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location = get_pointer_location(window, input->sx, input->sy);
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if (button == BTN_LEFT && state == 1) {
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switch (hlocation | vlocation) {
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switch (location) {
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case WINDOW_MOVING:
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wl_shell_move(window->display->shell,
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window->surface, input_device, time);
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@ -369,7 +546,7 @@ static void window_handle_button(void *data, struct wl_input_device *input_devic
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case WINDOW_RESIZING_BOTTOM_RIGHT:
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wl_shell_resize(window->display->shell,
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window->surface, input_device, time,
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hlocation | vlocation);
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location);
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break;
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}
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}
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@ -413,10 +590,12 @@ window_handle_pointer_focus(void *data,
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{
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struct input *input = data;
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if (surface)
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if (surface) {
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input->pointer_focus = wl_surface_get_user_data(surface);
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else
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set_pointer_image(input);
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} else {
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input->pointer_focus = NULL;
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}
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}
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static void
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@ -945,6 +1124,8 @@ display_create(int *argc, char **argv[], const GOptionEntry *option_entries)
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return NULL;
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}
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create_pointer_images(d);
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display_render_frame(d);
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d->loop = g_main_loop_new(NULL, FALSE);
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