add wlr_cursor basic implementation
This commit is contained in:
parent
48fa59c22e
commit
e3d47376dc
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@ -598,6 +598,8 @@ static bool wlr_drm_output_set_cursor(struct wlr_output *_output,
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wlr_matrix_texture(plane->matrix, plane->width, plane->height,
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output->output.transform ^ WL_OUTPUT_TRANSFORM_FLIPPED_180);
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// TODO the image needs to be rotated depending on the output rotation
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plane->wlr_rend = wlr_gles2_renderer_create(&backend->backend);
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if (!plane->wlr_rend) {
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return false;
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@ -651,6 +653,31 @@ static bool wlr_drm_output_move_cursor(struct wlr_output *_output,
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struct wlr_drm_output *output = (struct wlr_drm_output *)_output;
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struct wlr_drm_backend *backend =
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wl_container_of(output->renderer, backend, renderer);
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int width, height, tmp;
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wlr_output_effective_resolution(_output, &width, &height);
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switch (_output->transform) {
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case WL_OUTPUT_TRANSFORM_NORMAL:
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// nothing to do
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break;
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case WL_OUTPUT_TRANSFORM_270:
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tmp = x;
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x = y;
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y = -(tmp - width);
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break;
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case WL_OUTPUT_TRANSFORM_90:
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tmp = x;
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x = -(y - height);
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y = tmp;
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break;
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default:
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// TODO other transformations
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wlr_log(L_ERROR, "TODO: handle surface to crtc for transformation = %d",
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_output->transform);
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break;
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}
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return backend->iface->crtc_move_cursor(backend, output->crtc, x, y);
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}
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@ -6,6 +6,7 @@
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#include <string.h>
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#include <unistd.h>
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#include <math.h>
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#include <assert.h>
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#include <wayland-server.h>
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#include <wayland-server-protocol.h>
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#include <xkbcommon/xkbcommon.h>
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@ -16,16 +17,27 @@
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#include <wlr/backend.h>
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#include <wlr/backend/session.h>
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#include <wlr/types/wlr_keyboard.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/xcursor.h>
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#include <wlr/types/wlr_cursor.h>
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#include <wlr/util/log.h>
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#include "shared.h"
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#include "cat.h"
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struct sample_state {
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struct wlr_xcursor *cursor;
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struct compositor_state *compositor;
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struct example_config *config;
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struct wlr_xcursor *xcursor;
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struct wlr_cursor *cursor;
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double cur_x, cur_y;
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float default_color[4];
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float clear_color[4];
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struct wlr_output_layout *layout;
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struct wl_listener cursor_motion;
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struct wl_listener cursor_motion_absolute;
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struct wl_listener cursor_button;
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struct wl_listener cursor_axis;
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};
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static void handle_output_frame(struct output_state *output, struct timespec *ts) {
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@ -42,74 +54,15 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
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wlr_output_swap_buffers(wlr_output);
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}
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static void handle_pointer_motion(struct pointer_state *pstate,
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double d_x, double d_y) {
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struct sample_state *state = pstate->compositor->data;
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state->cur_x += d_x;
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state->cur_y += d_y;
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struct wlr_xcursor_image *image = state->cursor->images[0];
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struct output_state *output;
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wl_list_for_each(output, &pstate->compositor->outputs, link) {
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wlr_output_move_cursor(output->output,
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state->cur_x - image->hotspot_x,
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state->cur_y - image->hotspot_y);
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}
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}
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static void handle_pointer_motion_absolute(struct pointer_state *pstate,
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double x, double y) {
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struct sample_state *state = pstate->compositor->data;
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state->cur_x = x;
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state->cur_y = y;
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struct wlr_xcursor_image *image = state->cursor->images[0];
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struct output_state *output;
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wl_list_for_each(output, &pstate->compositor->outputs, link) {
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wlr_output_move_cursor(output->output,
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state->cur_x - image->hotspot_x,
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state->cur_y - image->hotspot_y);
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}
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}
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static void handle_pointer_button(struct pointer_state *pstate,
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uint32_t button, enum wlr_button_state state) {
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struct sample_state *sample = pstate->compositor->data;
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float (*color)[4];
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if (state == WLR_BUTTON_RELEASED) {
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color = &sample->default_color;
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} else {
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float red[4] = { 0.25f, 0.25f, 0.25f, 1 };
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red[button % 3] = 1;
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color = &red;
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}
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memcpy(&sample->clear_color, color, sizeof(*color));
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}
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static void handle_pointer_axis(struct pointer_state *pstate,
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enum wlr_axis_source source,
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enum wlr_axis_orientation orientation,
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double delta) {
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struct sample_state *sample = pstate->compositor->data;
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for (size_t i = 0; i < 3; ++i) {
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sample->default_color[i] += delta > 0 ? -0.05f : 0.05f;
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if (sample->default_color[i] > 1.0f) {
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sample->default_color[i] = 1.0f;
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}
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if (sample->default_color[i] < 0.0f) {
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sample->default_color[i] = 0.0f;
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}
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}
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memcpy(&sample->clear_color, &sample->default_color,
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sizeof(sample->clear_color));
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}
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static void handle_output_add(struct output_state *ostate) {
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struct sample_state *state = ostate->compositor->data;
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struct sample_state *sample = ostate->compositor->data;
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struct wlr_output *wlr_output = ostate->output;
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struct wlr_xcursor_image *image = state->cursor->images[0];
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struct wlr_xcursor_image *image = sample->xcursor->images[0];
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wlr_output_layout_destroy(sample->layout);
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sample->layout = configure_layout(sample->config, &ostate->compositor->outputs);
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wlr_cursor_attach_output_layout(sample->cursor, sample->layout);
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if (!wlr_output_set_cursor(wlr_output, image->buffer,
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image->width, image->width, image->height)) {
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wlr_log(L_DEBUG, "Failed to set hardware cursor");
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@ -120,34 +73,137 @@ static void handle_output_add(struct output_state *ostate) {
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}
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}
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static void handle_output_remove(struct output_state *ostate) {
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struct sample_state *sample = ostate->compositor->data;
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wlr_output_layout_destroy(sample->layout);
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sample->layout = configure_layout(sample->config, &ostate->compositor->outputs);
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wlr_cursor_attach_output_layout(sample->cursor, sample->layout);
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}
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static void handle_output_resolution(struct compositor_state *state,
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struct output_state *ostate) {
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struct sample_state *sample = ostate->compositor->data;
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wlr_output_layout_destroy(sample->layout);
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sample->layout = configure_layout(sample->config, &ostate->compositor->outputs);
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wlr_cursor_attach_output_layout(sample->cursor, sample->layout);
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}
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static void handle_input_add(struct compositor_state *state, struct
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wlr_input_device *device) {
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struct sample_state *sample = state->data;
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// TODO handle other input devices
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if (device->type == WLR_INPUT_DEVICE_POINTER) {
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wlr_cursor_attach_input_device(sample->cursor, device);
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}
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}
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static void handle_cursor_motion(struct wl_listener *listener, void *data) {
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struct sample_state *sample = wl_container_of(listener, sample, cursor_motion);
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struct wlr_event_pointer_motion *event = data;
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wlr_cursor_move(sample->cursor, event->delta_x, event->delta_y);
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}
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static void handle_cursor_motion_absolute(struct wl_listener *listener, void *data) {
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struct sample_state *sample = wl_container_of(listener, sample, cursor_motion_absolute);
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struct wlr_event_pointer_motion_absolute *event = data;
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sample->cur_x = event->x_mm;
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sample->cur_y = event->y_mm;
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struct wlr_xcursor_image *image = sample->xcursor->images[0];
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struct output_state *output;
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wl_list_for_each(output, &sample->compositor->outputs, link) {
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wlr_output_move_cursor(output->output,
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sample->cur_x - image->hotspot_x,
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sample->cur_y - image->hotspot_y);
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}
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}
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static void handle_cursor_button(struct wl_listener *listener, void *data) {
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struct sample_state *sample = wl_container_of(listener, sample, cursor_button);
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struct wlr_event_pointer_button *event = data;
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float (*color)[4];
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if (event->state == WLR_BUTTON_RELEASED) {
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color = &sample->default_color;
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memcpy(&sample->clear_color, color, sizeof(*color));
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} else {
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float red[4] = { 0.25f, 0.25f, 0.25f, 1 };
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red[event->button % 3] = 1;
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color = &red;
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memcpy(&sample->clear_color, color, sizeof(*color));
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}
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}
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static void handle_cursor_axis(struct wl_listener *listener, void *data) {
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struct sample_state *sample = wl_container_of(listener, sample, cursor_axis);
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struct wlr_event_pointer_axis *event = data;
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for (size_t i = 0; i < 3; ++i) {
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sample->default_color[i] += event->delta > 0 ? -0.05f : 0.05f;
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if (sample->default_color[i] > 1.0f) {
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sample->default_color[i] = 1.0f;
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}
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if (sample->default_color[i] < 0.0f) {
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sample->default_color[i] = 0.0f;
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}
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}
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memcpy(&sample->clear_color, &sample->default_color,
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sizeof(sample->clear_color));
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}
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int main(int argc, char *argv[]) {
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struct sample_state state = {
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.default_color = { 0.25f, 0.25f, 0.25f, 1 },
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.clear_color = { 0.25f, 0.25f, 0.25f, 1 }
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};
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state.config = parse_args(argc, argv);
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state.cursor = wlr_cursor_init();
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wl_signal_add(&state.cursor->events.motion, &state.cursor_motion);
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state.cursor_motion.notify = handle_cursor_motion;
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wl_signal_add(&state.cursor->events.motion_absolute, &state.cursor_motion_absolute);
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state.cursor_motion_absolute.notify = handle_cursor_motion_absolute;
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wl_signal_add(&state.cursor->events.button, &state.cursor_button);
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state.cursor_button.notify = handle_cursor_button;
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wl_signal_add(&state.cursor->events.axis, &state.cursor_axis);
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state.cursor_axis.notify = handle_cursor_axis;
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struct compositor_state compositor = { 0 };
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compositor.data = &state;
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compositor.output_add_cb = handle_output_add;
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compositor.output_remove_cb = handle_output_remove;
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compositor.output_resolution_cb = handle_output_resolution;
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compositor.output_frame_cb = handle_output_frame;
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compositor.pointer_motion_cb = handle_pointer_motion;
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compositor.pointer_motion_absolute_cb = handle_pointer_motion_absolute;
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compositor.pointer_button_cb = handle_pointer_button;
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compositor.pointer_axis_cb = handle_pointer_axis;
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compositor.input_add_cb = handle_input_add;
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state.compositor = &compositor;
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struct wlr_xcursor_theme *theme = wlr_xcursor_theme_load("default", 16);
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if (!theme) {
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wlr_log(L_ERROR, "Failed to load cursor theme");
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return 1;
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}
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state.cursor = wlr_xcursor_theme_get_cursor(theme, "left_ptr");
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if (!state.cursor) {
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state.xcursor = wlr_xcursor_theme_get_cursor(theme, "left_ptr");
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if (!state.xcursor) {
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wlr_log(L_ERROR, "Failed to load left_ptr cursor");
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return 1;
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}
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wlr_cursor_set_xcursor(state.cursor, state.xcursor);
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compositor_init(&compositor);
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wl_display_run(compositor.display);
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compositor_fini(&compositor);
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wlr_xcursor_theme_destroy(theme);
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example_config_destroy(state.config);
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wlr_cursor_destroy(state.cursor);
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}
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@ -441,6 +441,10 @@ static void input_add_notify(struct wl_listener *listener, void *data) {
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default:
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break;
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}
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if (state->input_add_cb) {
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state->input_add_cb(state, device);
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}
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}
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static void keyboard_remove(struct wlr_input_device *device, struct compositor_state *state) {
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@ -93,6 +93,8 @@ struct tablet_pad_state {
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};
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struct compositor_state {
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void (*input_add_cb)(struct compositor_state *compositor,
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struct wlr_input_device *device);
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void (*output_add_cb)(struct output_state *s);
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void (*keyboard_add_cb)(struct keyboard_state *s);
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void (*output_frame_cb)(struct output_state *s, struct timespec *ts);
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@ -0,0 +1,81 @@
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#ifndef _WLR_TYPES_CURSOR_H
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#define _WLR_TYPES_CURSOR_H
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#include <wayland-server.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_input_device.h>
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#include <wlr/xcursor.h>
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struct wlr_cursor_state;
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//struct wlr_cursor_impl *;
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struct wlr_cursor {
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struct wlr_cursor_state *state;
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//struct wlr_cursor_impl *impl;
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int x, y;
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struct {
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struct wl_signal motion;
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struct wl_signal motion_absolute;
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struct wl_signal button;
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struct wl_signal axis;
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} events;
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};
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struct wlr_cursor *wlr_cursor_init();
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void wlr_cursor_destroy(struct wlr_cursor *cur);
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void wlr_cursor_set_xcursor(struct wlr_cursor *cur, struct wlr_xcursor *xcur);
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void wlr_cursor_warp(struct wlr_cursor *cur, double x, double y);
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void wlr_cursor_move(struct wlr_cursor *cur, double delta_x, double delta_y);
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/**
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* Attaches this input device to this cursor. The input device must be one of:
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*
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* - WLR_INPUT_DEVICE_POINTER
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* - WLR_INPUT_DEVICE_TOUCH
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* - WLR_INPUT_DEVICE_TABLET_TOOL
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*/
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void wlr_cursor_attach_input_device(struct wlr_cursor *cur,
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struct wlr_input_device *dev);
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void wlr_cursor_detach_input_device(struct wlr_cursor *cur,
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struct wlr_input_device *dev);
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/**
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* Uses the given layout to establish the boundaries and movement semantics of
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* this cursor. Cursors without an output layout allow infinite movement in any
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* direction and do not support absolute input events.
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*/
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void wlr_cursor_attach_output_layout(struct wlr_cursor *cur,
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struct wlr_output_layout *l);
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/**
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* Attaches this cursor to the given output, which must be among the outputs in
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* the current output_layout for this cursor. This call is invalid for a cursor
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* without an associated output layout.
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*/
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void wlr_cursor_map_to_output(struct wlr_cursor *cur, struct wlr_output *output);
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/**
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* Maps all input from a specific input device to a given output. The input
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* device must be attached to this cursor and the output must be among the
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* outputs in the attached output layout.
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*/
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void wlr_cursor_map_input_to_output(struct wlr_cursor *cur,
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struct wlr_input_device *dev, struct wlr_output *output);
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/**
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* Maps this cursor to an arbitrary region on the associated wlr_output_layout.
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*/
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//void wlr_cursor_map_to_region(struct wlr_cursor *cur, struct wlr_geometry *geo);
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/**
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* Maps inputs from this input device to an arbitrary region on the associated
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* wlr_output_layout.
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*/
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//void wlr_cursor_map_input_to_region(struct wlr_cursor *cur, struct wlr_input_device *dev, struct wlr_geometry *geo);
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#endif
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@ -6,6 +6,7 @@ lib_wlr_types = static_library('wlr_types', files(
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'wlr_output.c',
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'wlr_output_layout.c',
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'wlr_pointer.c',
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'wlr_cursor.c',
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'wlr_region.c',
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'wlr_seat.c',
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'wlr_surface.c',
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@ -0,0 +1,206 @@
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#include <wlr/types/wlr_cursor.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <wlr/util/log.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_input_device.h>
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struct wlr_cursor_device {
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struct wlr_cursor *cursor;
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struct wlr_input_device *device;
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struct wl_list link;
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struct wl_listener motion;
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struct wl_listener motion_absolute;
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struct wl_listener button;
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struct wl_listener axis;
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};
|
||||
|
||||
struct wlr_cursor_state {
|
||||
struct wl_list devices;
|
||||
struct wlr_output_layout *layout;
|
||||
struct wlr_xcursor *xcursor;
|
||||
};
|
||||
|
||||
struct wlr_cursor *wlr_cursor_init() {
|
||||
struct wlr_cursor *cur = calloc(1, sizeof(struct wlr_cursor));
|
||||
if (!cur) {
|
||||
wlr_log(L_ERROR, "Failed to allocate wlr_cursor");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
cur->state = calloc(1, sizeof(struct wlr_cursor_state));
|
||||
if (!cur->state) {
|
||||
wlr_log(L_ERROR, "Failed to allocate wlr_cursor_state");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
wl_list_init(&cur->state->devices);
|
||||
|
||||
wl_signal_init(&cur->events.motion);
|
||||
wl_signal_init(&cur->events.motion_absolute);
|
||||
wl_signal_init(&cur->events.button);
|
||||
wl_signal_init(&cur->events.axis);
|
||||
|
||||
cur->x = 100;
|
||||
cur->y = 100;
|
||||
|
||||
return cur;
|
||||
}
|
||||
|
||||
void wlr_cursor_destroy(struct wlr_cursor *cur) {
|
||||
struct wlr_cursor_device *device;
|
||||
wl_list_for_each(device, &cur->state->devices, link) {
|
||||
wl_list_remove(&device->link);
|
||||
free(device);
|
||||
}
|
||||
|
||||
free(cur);
|
||||
}
|
||||
|
||||
void wlr_cursor_set_xcursor(struct wlr_cursor *cur, struct wlr_xcursor *xcur) {
|
||||
cur->state->xcursor = xcur;
|
||||
}
|
||||
|
||||
void wlr_cursor_warp(struct wlr_cursor *cur, double x, double y) {
|
||||
}
|
||||
|
||||
void wlr_cursor_move(struct wlr_cursor *cur, double delta_x, double delta_y) {
|
||||
//struct wlr_output *current_output;
|
||||
//current_output = wlr_output_layout_output_at(cur->state->layout, cur->x, cur->y);
|
||||
|
||||
// TODO handle no layout
|
||||
assert(cur->state->layout);
|
||||
// TODO handle layout boundaries
|
||||
double new_x = cur->x + delta_x;
|
||||
double new_y = cur->y + delta_y;
|
||||
int hotspot_x = 0;
|
||||
int hotspot_y = 0;
|
||||
|
||||
if (cur->state->xcursor && cur->state->xcursor->image_count > 0) {
|
||||
struct wlr_xcursor_image *image = cur->state->xcursor->images[0];
|
||||
hotspot_x = image->hotspot_x;
|
||||
hotspot_y = image->hotspot_y;
|
||||
}
|
||||
|
||||
struct wlr_output *output;
|
||||
output = wlr_output_layout_output_at(cur->state->layout, new_x, new_y);
|
||||
|
||||
if (output) {
|
||||
int output_x = new_x;
|
||||
int output_y = new_y;
|
||||
|
||||
// TODO fix double to int rounding issues
|
||||
wlr_output_layout_output_coords(cur->state->layout, output, &output_x, &output_y);
|
||||
wlr_output_move_cursor(output, output_x - hotspot_x, output_y - hotspot_y);
|
||||
|
||||
cur->x = new_x;
|
||||
cur->y = new_y;
|
||||
}
|
||||
}
|
||||
|
||||
static void handle_pointer_motion(struct wl_listener *listener, void *data) {
|
||||
struct wlr_event_pointer_motion *event = data;
|
||||
struct wlr_cursor_device *device = wl_container_of(listener, device, motion);
|
||||
wl_signal_emit(&device->cursor->events.motion, event);
|
||||
}
|
||||
|
||||
static void handle_pointer_motion_absolute(struct wl_listener *listener, void *data) {
|
||||
struct wlr_event_pointer_motion_absolute *event = data;
|
||||
struct wlr_cursor_device *device = wl_container_of(listener, device, motion_absolute);
|
||||
wl_signal_emit(&device->cursor->events.motion_absolute, event);
|
||||
}
|
||||
|
||||
static void handle_pointer_button(struct wl_listener *listener, void *data) {
|
||||
struct wlr_event_pointer_button *event = data;
|
||||
struct wlr_cursor_device *device = wl_container_of(listener, device, button);
|
||||
wl_signal_emit(&device->cursor->events.button, event);
|
||||
}
|
||||
|
||||
static void handle_pointer_axis(struct wl_listener *listener, void *data) {
|
||||
struct wlr_event_pointer_axis *event = data;
|
||||
struct wlr_cursor_device *device = wl_container_of(listener, device, axis);
|
||||
wl_signal_emit(&device->cursor->events.axis, event);
|
||||
}
|
||||
|
||||
void wlr_cursor_attach_input_device(struct wlr_cursor *cur,
|
||||
struct wlr_input_device *dev) {
|
||||
if (dev->type != WLR_INPUT_DEVICE_POINTER &&
|
||||
dev->type != WLR_INPUT_DEVICE_TOUCH &&
|
||||
dev->type != WLR_INPUT_DEVICE_TABLET_TOOL) {
|
||||
wlr_log(L_ERROR, "only device types of pointer, touch or tablet tool are"
|
||||
"supported");
|
||||
return;
|
||||
}
|
||||
|
||||
// TODO support other device types
|
||||
if (dev->type != WLR_INPUT_DEVICE_POINTER) {
|
||||
wlr_log(L_ERROR, "TODO: support touch and tablet tool devices");
|
||||
return;
|
||||
}
|
||||
|
||||
// make sure it is not already attached
|
||||
struct wlr_cursor_device *_dev;
|
||||
wl_list_for_each(_dev, &cur->state->devices, link) {
|
||||
if (_dev->device == dev) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
struct wlr_cursor_device *device = calloc(1, sizeof(struct wlr_cursor_device));
|
||||
if (!device) {
|
||||
wlr_log(L_ERROR, "Failed to allocate wlr_cursor_device");
|
||||
return;
|
||||
}
|
||||
|
||||
device->cursor = cur;
|
||||
device->device = dev;
|
||||
|
||||
// listen to events
|
||||
wl_signal_add(&dev->pointer->events.motion, &device->motion);
|
||||
device->motion.notify = handle_pointer_motion;
|
||||
|
||||
wl_signal_add(&dev->pointer->events.motion_absolute, &device->motion_absolute);
|
||||
device->motion_absolute.notify = handle_pointer_motion_absolute;
|
||||
|
||||
wl_signal_add(&dev->pointer->events.button, &device->button);
|
||||
device->button.notify = handle_pointer_button;
|
||||
|
||||
wl_signal_add(&dev->pointer->events.axis, &device->axis);
|
||||
device->axis.notify = handle_pointer_axis;
|
||||
|
||||
wl_list_insert(&cur->state->devices, &device->link);
|
||||
}
|
||||
|
||||
void wlr_cursor_detach_input_device(struct wlr_cursor *cur,
|
||||
struct wlr_input_device *dev) {
|
||||
struct wlr_cursor_device *target_device = NULL, *_device = NULL;
|
||||
wl_list_for_each(_device, &cur->state->devices, link) {
|
||||
if (_device->device == dev) {
|
||||
target_device = _device;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (target_device) {
|
||||
wl_list_remove(&target_device->link);
|
||||
free(target_device);
|
||||
}
|
||||
}
|
||||
|
||||
void wlr_cursor_attach_output_layout(struct wlr_cursor *cur,
|
||||
struct wlr_output_layout *l) {
|
||||
cur->state->layout = l;
|
||||
}
|
||||
|
||||
void wlr_cursor_map_to_output(struct wlr_cursor *cur,
|
||||
struct wlr_output *output) {
|
||||
wlr_log(L_DEBUG, "TODO: map to output");
|
||||
}
|
||||
|
||||
void wlr_cursor_map_input_to_output(struct wlr_cursor *cur,
|
||||
struct wlr_input_device *dev, struct wlr_output *output) {
|
||||
wlr_log(L_DEBUG, "TODO map input to output");
|
||||
}
|
Loading…
Reference in New Issue