467 lines
No EOL
19 KiB
C++
467 lines
No EOL
19 KiB
C++
/*
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Crafter®.Graphics
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Copyright (C) 2025 Catcrafts®
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catcrafts.net
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License version 3.0 as published by the Free Software Foundation;
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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module;
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <linux/input-event-codes.h>
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#include <xkbcommon/xkbcommon.h>
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#include "../lib/xdg-shell-client-protocol.h"
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#include "../lib/wayland-xdg-decoration-unstable-v1-client-protocol.h"
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#include <string.h>
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#include <linux/input.h>
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#include <sys/mman.h>
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#include <wayland-cursor.h>
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#include <xkbcommon/xkbcommon.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <print>
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#include <wayland-client.h>
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#include <wayland-client-protocol.h>
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module Crafter.Graphics:Window_wayland_impl;
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import :Window;
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import :UiElement;
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import std;
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import :Types;
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import :Shm;
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import Crafter.Event;
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using namespace Crafter;
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WindowFramebuffer::WindowFramebuffer(std::uint_fast32_t width, std::uint_fast32_t height) : width(width), height(height) {
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}
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WindowWayland::WindowWayland(std::uint_fast32_t width, std::uint_fast32_t height) : WindowFramebuffer(width, height) {
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display = wl_display_connect(NULL);
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if (display == NULL) {
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std::cerr << "failed to create display" << std::endl;
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}
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wl_registry* registry = wl_display_get_registry(display);
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wl_registry_add_listener(registry, ®istry_listener, this);
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if (wl_display_roundtrip(display) == -1) {
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exit(EXIT_FAILURE);
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}
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if (shm == NULL || compositor == NULL || xdgWmBase == NULL) {
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std::cerr << "no wl_shm, wl_compositor or xdg_wm_base support" << std::endl;
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exit(EXIT_FAILURE);
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}
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surface = wl_compositor_create_surface(compositor);
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xdgSurface = xdg_wm_base_get_xdg_surface(xdgWmBase, surface);
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xdgToplevel = xdg_surface_get_toplevel(xdgSurface);
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xdg_surface_add_listener(xdgSurface, &xdg_surface_listener, this);
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xdg_toplevel_add_listener(xdgToplevel, &xdg_toplevel_listener, this);
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wl_surface_commit(surface);
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while (wl_display_dispatch(display) != -1 && !configured) {}
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wl_surface_commit(surface);
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zxdg_toplevel_decoration_v1* decoration = zxdg_decoration_manager_v1_get_toplevel_decoration(manager, xdgToplevel);
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zxdg_toplevel_decoration_v1_set_mode(decoration, ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
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// Create a wl_buffer, attach it to the surface and commit the surface
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int stride = width * 4;
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int size = stride * height;
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// Allocate a shared memory file with the right size
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int fd = create_shm_file(size);
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if (fd < 0) {
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fprintf(stderr, "creating a buffer file for %d B failed: %m\n", size);
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}
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// Map the shared memory file
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framebuffer = reinterpret_cast<Pixel_BU8_GU8_RU8_AU8*>(mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
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if (framebuffer == MAP_FAILED) {
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fprintf(stderr, "mmap failed: %m\n");
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close(fd);
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}
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// Create a wl_buffer from our shared memory file descriptor
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wl_shm_pool *pool = wl_shm_create_pool(shm, fd, size);
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buffer = wl_shm_pool_create_buffer(pool, 0, width, height, stride, WL_SHM_FORMAT_ARGB8888);
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wl_shm_pool_destroy(pool);
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// Now that we've mapped the file and created the wl_buffer, we no longer
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// need to keep file descriptor opened
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close(fd);
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if (buffer == NULL) {
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exit(EXIT_FAILURE);
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}
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wl_surface_attach(surface, buffer, 0, 0);
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wl_surface_commit(surface);
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}
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WindowWayland::WindowWayland(std::uint_fast32_t width, std::uint_fast32_t height, const std::string_view title) : WindowWayland(width, height) {
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xdg_toplevel_set_title(xdgToplevel, title.data());
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}
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WindowWayland::~WindowWayland() {
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xdg_toplevel_destroy(xdgToplevel);
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xdg_surface_destroy(xdgSurface);
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wl_surface_destroy(surface);
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wl_buffer_destroy(buffer);
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}
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void WindowWayland::StartSync() {
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while (open && wl_display_dispatch(display) != -1) {
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}
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}
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void RenderElement(UiElementBufferBuffer* element, ScaleData data , WindowWayland* window) {
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std::vector<Pixel_BU8_GU8_RU8_AU8> scaled(data.width*data.height);
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element->CopyNearestNeighbour(scaled.data(), data.width, data.height);
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for (std::int32_t x = data.x; x - data.x < data.width; x++) {
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for (std::int32_t y = data.y; y - data.y < data.height; y++) {
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if (x >= 0 && x < window->width && y >= 0 && y < window->height) {
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Pixel_BU8_GU8_RU8_AU8& dst = window->framebuffer[y * window->width + x];
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const Pixel_BU8_GU8_RU8_AU8& src = scaled[(y - data.y) * data.width + (x - data.x)];
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float srcA = src.a / 255.0f;
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float dstA = dst.a / 255.0f;
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float outA = srcA + dstA * (1.0f - srcA);
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if (outA > 0.0f) {
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dst.r = static_cast<uint8_t>((src.r * srcA + dst.r * dstA * (1.0f - srcA)) / outA);
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dst.g = static_cast<uint8_t>((src.g * srcA + dst.g * dstA * (1.0f - srcA)) / outA);
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dst.b = static_cast<uint8_t>((src.b * srcA + dst.b * dstA * (1.0f - srcA)) / outA);
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dst.a = static_cast<uint8_t>(outA * 255);
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}
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}
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}
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}
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std::sort(element->children.begin(), element->children.end(), [](UiElement* a, UiElement* b){ return a->z < b->z; });
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for(UiElement* child : element->children) {
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std::int32_t scaledWidth = MappedToPixel(element->relativeWidth, data.width);
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std::int32_t scaledHeight = MappedToPixel(element->relativeHeight, data.height);
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std::int32_t scaledX = MappedToPixel(element->anchorX, data.width) - MappedToPixel(element->anchorOffsetX, scaledWidth) - data.x;
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std::int32_t scaledY = MappedToPixel(element->anchorY, data.height) - MappedToPixel(element->anchorOffsetY, scaledHeight) - data.y;
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RenderElement(element, {
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scaledX,
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scaledY,
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scaledWidth,
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scaledHeight
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}, window);
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}
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}
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void WindowWayland::Render() {
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std::sort(elements.begin(), elements.end(), [](UiElementBufferBuffer* a, UiElementBufferBuffer* b){ return a->z < b->z; });
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for(UiElementBufferBuffer* element : elements) {
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std::int32_t scaledWidth = MappedToPixel(element->relativeWidth, width);
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std::int32_t scaledHeight = MappedToPixel(element->relativeHeight, height);
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std::int32_t scaledX = MappedToPixel(element->anchorX, width) - MappedToPixel(element->anchorOffsetX, scaledWidth);
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std::int32_t scaledY = MappedToPixel(element->anchorY, height) - MappedToPixel(element->anchorOffsetY, scaledHeight);
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RenderElement(element, {
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scaledX,
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scaledY,
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scaledWidth,
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scaledHeight
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}, this);
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}
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wl_surface_attach(surface, buffer, 0, 0);
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wl_surface_damage(surface, 0, 0, width, height);
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wl_surface_commit(surface);
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}
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void WindowWayland::StartUpdate() {
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cb = wl_surface_frame(surface);
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wl_callback_add_listener(cb, &wl_callback_listener, this);
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updating = true;
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}
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void WindowWayland::StopUpdate() {
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updating = false;
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}
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void WindowWayland::SetTitle(const std::string_view title) {
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xdg_toplevel_set_title(xdgToplevel, title.data());
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}
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void WindowWayland::Resize(std::uint_fast32_t width, std::uint_fast32_t height) {
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}
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void WindowWayland::Write(Pixel_BU8_GU8_RU8_AU8* pixels) {
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std::memcpy(framebuffer, pixels, width*height*sizeof(Pixel_BU8_GU8_RU8_AU8));
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}
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void WindowWayland::Write(std::uint_fast32_t x, std::uint_fast32_t y, Pixel_BU8_GU8_RU8_AU8 pixel) {
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framebuffer[y * width + x] = pixel;
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}
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Pixel_BU8_GU8_RU8_AU8 WindowWayland::Read(std::uint_fast32_t x, std::uint_fast32_t y) const{
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return framebuffer[y * width + x];
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}
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const Pixel_BU8_GU8_RU8_AU8* WindowWayland::Read() const{
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return framebuffer;
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}
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Pixel_BU8_GU8_RU8_AU8* WindowWayland::Get() {
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return framebuffer;
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}
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void WindowWayland::Store() {
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}
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void WindowWayland::xdg_wm_base_handle_ping(void* data, xdg_wm_base* xdg_wm_base, std::uint32_t serial) {
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xdg_wm_base_pong(xdg_wm_base, serial);
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}
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void WindowWayland::wl_surface_frame_done(void* data, struct wl_callback *cb, uint32_t time)
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{
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wl_callback_destroy(cb);
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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if(window->updating) {
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cb = wl_surface_frame(window->surface);
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wl_callback_add_listener(cb, &WindowWayland::wl_callback_listener, window);
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}
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window->Render();
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}
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void WindowWayland::pointer_handle_button(void* data, wl_pointer* pointer, std::uint32_t serial, std::uint32_t time, std::uint32_t button, std::uint32_t state) {
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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if (button == BTN_LEFT) {
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if(state == WL_POINTER_BUTTON_STATE_PRESSED) {
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window->mouseLeftHeld = true;
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window->onMouseLeftClick.Invoke(window->currentMousePos);
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for(UiElementMouse* element : window->mouseElements) {
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if(window->currentMousePos.x >= element->clickArea.x && window->currentMousePos.x <= element->clickArea.x+element->clickArea.width && window->currentMousePos.y > element->clickArea.y && window->currentMousePos.y < element->clickArea.y+element->clickArea.height) {
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element->onMouseLeftClick.Invoke({window->currentMousePos.x-element->clickArea.x, window->currentMousePos.y-element->clickArea.y});
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}
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}
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} else {
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window->mouseLeftHeld = false;
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window->onMouseLeftRelease.Invoke(window->currentMousePos);
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for(UiElementMouse* element : window->mouseElements) {
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if(window->currentMousePos.x >= element->clickArea.x && window->currentMousePos.x <= element->clickArea.x+element->clickArea.width && window->currentMousePos.y > element->clickArea.y && window->currentMousePos.y < element->clickArea.y+element->clickArea.height) {
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element->onMouseLeftRelease.Invoke({window->currentMousePos.x-element->clickArea.x, window->currentMousePos.y-element->clickArea.y});
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}
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}
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}
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} else if(button == BTN_RIGHT){
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if(state == WL_POINTER_BUTTON_STATE_PRESSED) {
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window->mouseRightHeld = true;
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window->onMouseRightClick.Invoke(window->currentMousePos);
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for(UiElementMouse* element : window->mouseElements) {
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if(window->currentMousePos.x >= element->clickArea.x && window->currentMousePos.x <= element->clickArea.x+element->clickArea.width && window->currentMousePos.y > element->clickArea.y && window->currentMousePos.y < element->clickArea.y+element->clickArea.height) {
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element->onMouseRightClick.Invoke({window->currentMousePos.x-element->clickArea.x, window->currentMousePos.y-element->clickArea.y});
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}
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}
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} else {
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window->mouseRightHeld = true;
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window->onMouseRightRelease.Invoke(window->currentMousePos);
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for(UiElementMouse* element : window->mouseElements) {
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if(window->currentMousePos.x >= element->clickArea.x && window->currentMousePos.x <= element->clickArea.x+element->clickArea.width && window->currentMousePos.y > element->clickArea.y && window->currentMousePos.y < element->clickArea.y+element->clickArea.height) {
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element->onMouseRightRelease.Invoke({window->currentMousePos.x-element->clickArea.x, window->currentMousePos.y-element->clickArea.y});
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}
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}
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}
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}
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}
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void WindowWayland::PointerListenerHandleMotion(void* data, wl_pointer* wl_pointer, uint time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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MousePoint pos = {PixelToMapped(wl_fixed_to_double(surface_x), window->width), PixelToMapped(wl_fixed_to_double(surface_y), window->height)};
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window->lastMousePos = window->currentMousePos;
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window->currentMousePos = pos;
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window->mouseDelta = {window->currentMousePos.x-window->lastMousePos.x, window->currentMousePos.y-window->lastMousePos.y};
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window->onMouseMove.Invoke({window->lastMousePos, window->currentMousePos, window->mouseDelta});
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for(UiElementMouse* element : window->mouseElements) {
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if(window->currentMousePos.x >= element->clickArea.x && window->currentMousePos.x <= element->clickArea.x+element->clickArea.width && window->currentMousePos.y > element->clickArea.y && window->currentMousePos.y < element->clickArea.y+element->clickArea.height) {
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element->onMouseMove.Invoke({window->currentMousePos.x-element->clickArea.x, window->currentMousePos.y-element->clickArea.y});
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if(!(window->lastMousePos.x >= element->clickArea.x && window->lastMousePos.x <= element->clickArea.x+element->clickArea.width && window->lastMousePos.y > element->clickArea.y && window->lastMousePos.y < element->clickArea.y+element->clickArea.height)) {
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element->onMouseEnter.Invoke({window->currentMousePos.x-element->clickArea.x, window->currentMousePos.y-element->clickArea.y});
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}
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} else if(window->lastMousePos.x >= element->clickArea.x && window->lastMousePos.x <= element->clickArea.x+element->clickArea.width && window->lastMousePos.y > element->clickArea.y && window->lastMousePos.y < element->clickArea.y+element->clickArea.height) {
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element->onMouseLeave.Invoke({window->currentMousePos.x-element->clickArea.x, window->currentMousePos.y-element->clickArea.y});
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}
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}
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}
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void WindowWayland::PointerListenerHandleEnter(void* data, wl_pointer* wl_pointer, uint serial, wl_surface* surface, wl_fixed_t surface_x, wl_fixed_t surface_y) {
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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window->onMouseEnter.Invoke({window->lastMousePos, window->currentMousePos, window->mouseDelta});
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}
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void WindowWayland::PointerListenerHandleLeave(void* data, wl_pointer*, std::uint32_t, wl_surface*) {
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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window->onMouseEnter.Invoke({window->lastMousePos, window->currentMousePos, window->mouseDelta});
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}
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void WindowWayland::PointerListenerHandleAxis(void*, wl_pointer*, std::uint32_t, std::uint32_t, wl_fixed_t value) {
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}
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void WindowWayland::keyboard_keymap(void *data, wl_keyboard *keyboard, uint32_t format, int fd, uint32_t size) {
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) {
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close(fd);
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fprintf(stderr, "Unsupported keymap format\n");
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return;
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}
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void *map = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
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if (map == MAP_FAILED) {
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close(fd);
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perror("mmap");
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return;
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}
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window->xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
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window->xkb_keymap = xkb_keymap_new_from_string(window->xkb_context, (const char *)map, XKB_KEYMAP_FORMAT_TEXT_V1,XKB_KEYMAP_COMPILE_NO_FLAGS);
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munmap(map, size);
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close(fd);
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window->xkb_state = xkb_state_new(window->xkb_keymap);
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}
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void WindowWayland::keyboard_enter(void *data, wl_keyboard *keyboard, uint32_t serial, wl_surface *surface, wl_array *keys) {
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}
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void WindowWayland::keyboard_leave(void *data, wl_keyboard *keyboard, uint32_t serial, wl_surface *surface) {
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}
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void WindowWayland::keyboard_key(void *data, wl_keyboard *keyboard, uint32_t serial, uint32_t time, uint32_t key, uint32_t state) {
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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if (!window->xkb_state) {
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return;
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}
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xkb_keycode_t keycode = key + 8;
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xkb_keysym_t keysym = xkb_state_key_get_one_sym(window->xkb_state, keycode);
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char utf8[8] = {0};
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int len = xkb_keysym_to_utf8(keysym, utf8, sizeof(utf8));
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if (len != 0) {
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char keypress = utf8[0];
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if(state == WL_KEYBOARD_KEY_STATE_PRESSED) {
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if(window->heldkeys[keypress]) {
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window->onKeyHold[keypress].Invoke();
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window->onAnyKeyHold.Invoke(keypress);
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} else{
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window->heldkeys[keypress] = true;
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window->onKeyDown[keypress].Invoke();
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window->onAnyKeyDown.Invoke(keypress);
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}
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} else{
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window->heldkeys[keypress] = false;
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window->onKeyUp[keypress].Invoke();
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window->onAnyKeyUp.Invoke(keypress);
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}
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} else {
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// // fallback for keys like Return, Escape, etc.
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// char name[64];
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// if (xkb_keysym_get_name(keysym, name, sizeof(name)) > 0) {
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// printf("Key %s pressed (non-printable or multi-char)\n", name);
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// }
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}
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}
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void WindowWayland::keyboard_modifiers(void *data, wl_keyboard *keyboard, uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked, uint32_t group) {
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}
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void WindowWayland::keyboard_repeat_info(void *data, wl_keyboard *keyboard, int32_t rate, int32_t delay) {
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}
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void WindowWayland::seat_handle_capabilities(void* data, wl_seat* seat, uint32_t capabilities) {
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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window->seat = seat;
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if (capabilities & WL_SEAT_CAPABILITY_POINTER) {
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wl_pointer* pointer = wl_seat_get_pointer(seat);
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wl_pointer_add_listener(pointer, &pointer_listener, window);
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}
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if (capabilities & WL_SEAT_CAPABILITY_KEYBOARD) {
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wl_keyboard* keyboard = wl_seat_get_keyboard(seat);
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wl_keyboard_add_listener(keyboard, &keyboard_listener, window);
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}
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}
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void WindowWayland::handle_global(void *data, wl_registry *registry, std::uint32_t name, const char *interface, std::uint32_t version) {
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WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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if (strcmp(interface, wl_shm_interface.name) == 0) {
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window->shm = reinterpret_cast<wl_shm*>(wl_registry_bind(registry, name, &wl_shm_interface, 1));
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} else if (strcmp(interface, wl_seat_interface.name) == 0) {
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wl_seat* seat = reinterpret_cast<wl_seat*>(wl_registry_bind(registry, name, &wl_seat_interface, 1));
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wl_seat_add_listener(seat, &seat_listener, window);
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} else if (compositor == NULL && strcmp(interface, wl_compositor_interface.name) == 0) {
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compositor = reinterpret_cast<wl_compositor*>(wl_registry_bind(registry, name, &wl_compositor_interface, 1));
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} else if (strcmp(interface, xdg_wm_base_interface.name) == 0) {
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window->xdgWmBase = reinterpret_cast<xdg_wm_base*>(wl_registry_bind(registry, name, &xdg_wm_base_interface, 1));
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xdg_wm_base_add_listener(window->xdgWmBase, &xdgWmBaseListener, NULL);
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} else if (strcmp(interface, zxdg_decoration_manager_v1_interface.name) == 0) {
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window->manager = reinterpret_cast<zxdg_decoration_manager_v1*>(wl_registry_bind(registry, name, &zxdg_decoration_manager_v1_interface, 1));
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}
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}
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void WindowWayland::handle_global_remove(void* data, wl_registry* registry, uint32_t name) {
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}
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void WindowWayland::xdg_toplevel_configure(void*, xdg_toplevel*, std::int32_t, std::int32_t, wl_array*){
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}
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void WindowWayland::xdg_toplevel_handle_close(void* data, xdg_toplevel*) {
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|
WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
|
|
window->onClose.Invoke();
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|
window->open = false;
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|
}
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void WindowWayland::xdg_surface_handle_configure(void* data, xdg_surface* xdg_surface, std::uint32_t serial) {
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|
WindowWayland* window = reinterpret_cast<WindowWayland*>(data);
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// The compositor configures our surface, acknowledge the configure event
|
|
xdg_surface_ack_configure(xdg_surface, serial);
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|
|
|
if (window->configured) {
|
|
// If this isn't the first configure event we've received, we already
|
|
// have a buffer attached, so no need to do anything. Commit the
|
|
// surface to apply the configure acknowledgement.
|
|
wl_surface_commit(window->surface);
|
|
}
|
|
|
|
window->configured = true;
|
|
} |