ladybird/WindowServer/WSWindowManager.cpp

1181 lines
41 KiB
C++

#include "WSWindowManager.h"
#include "WSWindow.h"
#include "WSScreen.h"
#include "WSMessageLoop.h"
#include <SharedGraphics/Font.h>
#include <SharedGraphics/Painter.h>
#include <SharedGraphics/CharacterBitmap.h>
#include <AK/StdLibExtras.h>
#include <LibC/errno_numbers.h>
#include "WSMenu.h"
#include "WSMenuBar.h"
#include "WSMenuItem.h"
#include <WindowServer/WSClientConnection.h>
#include <unistd.h>
#include <stdio.h>
#include <time.h>
#ifdef KERNEL
#include <Kernel/ProcFS.h>
#endif
//#define DEBUG_COUNTERS
//#define DEBUG_WID_IN_TITLE_BAR
//#define RESIZE_DEBUG
#define USE_WALLPAPER
static const int window_titlebar_height = 18;
static inline Rect menu_window_rect(const Rect& rect)
{
return rect.inflated(2, 2);
}
static inline Rect title_bar_rect(const Rect& window)
{
return {
window.x() - 1,
window.y() - window_titlebar_height,
window.width() + 2,
window_titlebar_height
};
}
static inline Rect title_bar_icon_rect(const Rect& window)
{
auto titlebar_rect = title_bar_rect(window);
return {
titlebar_rect.x() + 2,
titlebar_rect.y(),
16,
titlebar_rect.height(),
};
}
static inline Rect title_bar_text_rect(const Rect& window)
{
auto titlebar_rect = title_bar_rect(window);
auto titlebar_icon_rect = title_bar_icon_rect(window);
return {
titlebar_rect.x() + 2 + titlebar_icon_rect.width() + 2,
titlebar_rect.y(),
titlebar_rect.width() - 4 - titlebar_icon_rect.width() - 2,
titlebar_rect.height()
};
}
static inline Rect close_button_rect_for_window(const Rect& window_rect)
{
auto titlebar_inner_rect = title_bar_text_rect(window_rect);
int close_button_margin = 1;
int close_button_size = titlebar_inner_rect.height() - close_button_margin * 2;
return Rect {
titlebar_inner_rect.right() - close_button_size + 1,
titlebar_inner_rect.top() + close_button_margin,
close_button_size,
close_button_size - 1
};
}
static inline Rect border_window_rect(const Rect& window)
{
auto titlebar_rect = title_bar_rect(window);
return { titlebar_rect.x() - 1,
titlebar_rect.y() - 1,
titlebar_rect.width() + 2,
window_titlebar_height + window.height() + 3
};
}
static inline Rect outer_window_rect(const Rect& window)
{
auto rect = border_window_rect(window);
rect.inflate(2, 2);
return rect;
}
static inline Rect outer_window_rect(const WSWindow& window)
{
if (window.type() == WSWindowType::Menu)
return menu_window_rect(window.rect());
if (window.type() == WSWindowType::WindowSwitcher)
return window.rect();
ASSERT(window.type() == WSWindowType::Normal);
return outer_window_rect(window.rect());
}
static WSWindowManager* s_the;
WSWindowManager& WSWindowManager::the()
{
ASSERT(s_the);
return *s_the;
}
static const char* cursor_bitmap_inner_ascii = {
" # "
" ## "
" ### "
" #### "
" ##### "
" ###### "
" ####### "
" ######## "
" ######### "
" ########## "
" ###### "
" ## ## "
" # ## "
" ## "
" ## "
" ## "
" "
};
static const char* cursor_bitmap_outer_ascii = {
"## "
"# # "
"# # "
"# # "
"# # "
"# # "
"# # "
"# # "
"# # "
"# # "
"# #### "
"# ## # "
"# # # # "
"## # # "
" # # "
" # # "
" ## "
};
void WSWindowManager::flip_buffers()
{
swap(m_front_bitmap, m_back_bitmap);
swap(m_front_painter, m_back_painter);
int new_y_offset = m_buffers_are_flipped ? 0 : m_screen_rect.height();
WSScreen::the().set_y_offset(new_y_offset);
m_buffers_are_flipped = !m_buffers_are_flipped;
}
WSWindowManager::WSWindowManager()
: m_screen(WSScreen::the())
, m_screen_rect(m_screen.rect())
, m_flash_flush(false)
{
s_the = this;
#ifndef DEBUG_COUNTERS
(void)m_compose_count;
(void)m_flush_count;
#endif
auto size = m_screen_rect.size();
m_front_bitmap = GraphicsBitmap::create_wrapper(GraphicsBitmap::Format::RGB32, size, m_screen.scanline(0));
m_back_bitmap = GraphicsBitmap::create_wrapper(GraphicsBitmap::Format::RGB32, size, m_screen.scanline(size.height()));
m_front_painter = make<Painter>(*m_front_bitmap);
m_back_painter = make<Painter>(*m_back_bitmap);
m_font = Font::default_font();
m_front_painter->set_font(font());
m_back_painter->set_font(font());
m_background_color = Color(50, 50, 50);
m_active_window_border_color = Color(110, 34, 9);
m_active_window_border_color2 = Color(244, 202, 158);
m_active_window_title_color = Color::White;
m_inactive_window_border_color = Color(128, 128, 128);
m_inactive_window_border_color2 = Color(192, 192, 192);
m_inactive_window_title_color = Color(213, 208, 199);
m_dragging_window_border_color = Color(161, 50, 13);
m_dragging_window_border_color2 = Color(250, 220, 187);
m_dragging_window_title_color = Color::White;
m_highlight_window_border_color = Color::from_rgb(0xa10d0d);
m_highlight_window_border_color2 = Color::from_rgb(0xfabbbb);
m_highlight_window_title_color = Color::White;
m_cursor_bitmap_inner = CharacterBitmap::create_from_ascii(cursor_bitmap_inner_ascii, 12, 17);
m_cursor_bitmap_outer = CharacterBitmap::create_from_ascii(cursor_bitmap_outer_ascii, 12, 17);
#ifdef USE_WALLPAPER
m_wallpaper_path = "/res/wallpapers/retro.rgb";
m_wallpaper = GraphicsBitmap::load_from_file(GraphicsBitmap::Format::RGBA32, m_wallpaper_path, { 1024, 768 });
#endif
#ifdef KERNEL
ProcFS::the().add_sys_bool("wm_flash_flush", m_flash_flush);
ProcFS::the().add_sys_string("wm_wallpaper", m_wallpaper_path, [this] {
m_wallpaper = GraphicsBitmap::load_from_file(GraphicsBitmap::Format::RGBA32, m_wallpaper_path, m_screen_rect.size());
invalidate(m_screen_rect);
});
#endif
m_menu_selection_color = Color::from_rgb(0x84351a);
{
byte system_menu_name[] = { 0xf8, 0 };
m_system_menu = make<WSMenu>(nullptr, -1, String((const char*)system_menu_name));
m_system_menu->add_item(make<WSMenuItem>(0, "Open Terminal..."));
m_system_menu->add_item(make<WSMenuItem>(1, "Open ProcessManager..."));
m_system_menu->add_item(make<WSMenuItem>(WSMenuItem::Separator));
m_system_menu->add_item(make<WSMenuItem>(100, "640x480"));
m_system_menu->add_item(make<WSMenuItem>(101, "800x600"));
m_system_menu->add_item(make<WSMenuItem>(102, "1024x768"));
m_system_menu->add_item(make<WSMenuItem>(103, "1920x1080"));
m_system_menu->add_item(make<WSMenuItem>(WSMenuItem::Separator));
m_system_menu->add_item(make<WSMenuItem>(200, "About..."));
m_system_menu->on_item_activation = [this] (WSMenuItem& item) {
if (item.identifier() == 0) {
if (fork() == 0) {
execl("/bin/Terminal", "/bin/Terminal", nullptr);
ASSERT_NOT_REACHED();
}
return;
}
if (item.identifier() == 1) {
if (fork() == 0) {
execl("/bin/ProcessManager", "/bin/ProcessManager", nullptr);
ASSERT_NOT_REACHED();
}
return;
}
switch (item.identifier()) {
case 100: set_resolution(640, 480); break;
case 101: set_resolution(800, 600); break;
case 102: set_resolution(1024, 768); break;
case 103: set_resolution(1920, 1080); break;
}
if (item.identifier() == 200) {
if (fork() == 0) {
execl("/bin/About", "/bin/About", nullptr);
ASSERT_NOT_REACHED();
}
return;
}
#ifdef DEBUG_MENUS
dbgprintf("WSMenu 1 item activated: '%s'\n", item.text().characters());
#endif
};
}
// NOTE: This ensures that the system menu has the correct dimensions.
set_current_menubar(nullptr);
WSMessageLoop::the().start_timer(300, [this] {
static time_t last_update_time;
time_t now = time(nullptr);
if (now != last_update_time) {
tick_clock();
last_update_time = now;
}
});
invalidate();
compose();
}
WSWindowManager::~WSWindowManager()
{
}
static void get_cpu_usage(unsigned& busy, unsigned& idle)
{
busy = 0;
idle = 0;
FILE* fp = fopen("/proc/all", "r");
if (!fp) {
perror("failed to open /proc/all");
exit(1);
}
for (;;) {
char buf[BUFSIZ];
char* ptr = fgets(buf, sizeof(buf), fp);
if (!ptr)
break;
auto parts = String(buf, Chomp).split(',');
if (parts.size() < 17)
break;
bool ok;
pid_t pid = parts[0].to_uint(ok);
ASSERT(ok);
unsigned nsched = parts[1].to_uint(ok);
ASSERT(ok);
if (pid == 0)
idle += nsched;
else
busy += nsched;
}
int rc = fclose(fp);
ASSERT(rc == 0);
}
void WSWindowManager::tick_clock()
{
static unsigned last_busy;
static unsigned last_idle;
unsigned busy;
unsigned idle;
get_cpu_usage(busy, idle);
unsigned busy_diff = busy - last_busy;
unsigned idle_diff = idle - last_idle;
last_busy = busy;
last_idle = idle;
float cpu = (float)busy_diff / (float)(busy_diff + idle_diff);
m_cpu_history.enqueue(cpu);
invalidate(menubar_rect());
}
void WSWindowManager::set_resolution(int width, int height)
{
if (m_screen_rect.width() == width && m_screen_rect.height() == height)
return;
m_wallpaper_path = { };
m_wallpaper = nullptr;
m_screen.set_resolution(width, height);
m_screen_rect = m_screen.rect();
m_front_bitmap = GraphicsBitmap::create_wrapper(GraphicsBitmap::Format::RGB32, { width, height }, m_screen.scanline(0));
m_back_bitmap = GraphicsBitmap::create_wrapper(GraphicsBitmap::Format::RGB32, { width, height }, m_screen.scanline(height));
m_front_painter = make<Painter>(*m_front_bitmap);
m_back_painter = make<Painter>(*m_back_bitmap);
m_buffers_are_flipped = false;
invalidate();
compose();
}
template<typename Callback>
void WSWindowManager::for_each_active_menubar_menu(Callback callback)
{
callback(*m_system_menu);
if (m_current_menubar)
m_current_menubar->for_each_menu(callback);
}
int WSWindowManager::menubar_menu_margin() const
{
return 16;
}
void WSWindowManager::set_current_menubar(WSMenuBar* menubar)
{
if (menubar)
m_current_menubar = menubar->make_weak_ptr();
else
m_current_menubar = nullptr;
#ifdef DEBUG_MENUS
dbgprintf("[WM] Current menubar is now %p\n", menubar);
#endif
Point next_menu_location { menubar_menu_margin() / 2, 0 };
int index = 0;
for_each_active_menubar_menu([&] (WSMenu& menu) {
int text_width = index == 1 ? Font::default_bold_font().width(menu.name()) : font().width(menu.name());
menu.set_rect_in_menubar({ next_menu_location.x() - menubar_menu_margin() / 2, 0, text_width + menubar_menu_margin(), menubar_rect().height() - 1 });
menu.set_text_rect_in_menubar({ next_menu_location, { text_width, menubar_rect().height() } });
next_menu_location.move_by(menu.rect_in_menubar().width(), 0);
++index;
return true;
});
invalidate(menubar_rect());
}
static const char* s_close_button_bitmap_data = {
"## ##"
"### ###"
" ###### "
" #### "
" ## "
" #### "
" ###### "
"### ###"
"## ##"
};
static CharacterBitmap* s_close_button_bitmap;
static const int s_close_button_bitmap_width = 8;
static const int s_close_button_bitmap_height = 9;
void WSWindowManager::paint_window_frame(WSWindow& window)
{
//printf("[WM] paint_window_frame {%p}, rect: %d,%d %dx%d\n", &window, window.rect().x(), window.rect().y(), window.rect().width(), window.rect().height());
if (window.type() == WSWindowType::Menu) {
m_back_painter->draw_rect(menu_window_rect(window.rect()), Color::LightGray);
return;
}
if (window.type() == WSWindowType::WindowSwitcher)
return;
auto titlebar_rect = title_bar_rect(window.rect());
auto titlebar_icon_rect = title_bar_icon_rect(window.rect());
auto titlebar_inner_rect = title_bar_text_rect(window.rect());
auto outer_rect = outer_window_rect(window);
auto border_rect = border_window_rect(window.rect());
auto close_button_rect = close_button_rect_for_window(window.rect());
auto titlebar_title_rect = titlebar_inner_rect;
titlebar_title_rect.set_width(Font::default_bold_font().width(window.title()));
Rect inner_border_rect {
window.x() - 1,
window.y() - 1,
window.width() + 2,
window.height() + 2
};
Color title_color;
Color border_color;
Color border_color2;
Color middle_border_color;
if (&window == m_highlight_window.ptr()) {
border_color = m_highlight_window_border_color;
border_color2 = m_highlight_window_border_color2;
title_color = m_highlight_window_title_color;
middle_border_color = Color::White;
} else if (&window == m_drag_window.ptr()) {
border_color = m_dragging_window_border_color;
border_color2 = m_dragging_window_border_color2;
title_color = m_dragging_window_title_color;
middle_border_color = Color::White;
} else if (&window == m_active_window.ptr()) {
border_color = m_active_window_border_color;
border_color2 = m_active_window_border_color2;
title_color = m_active_window_title_color;
middle_border_color = Color::MidGray;
} else {
border_color = m_inactive_window_border_color;
border_color2 = m_inactive_window_border_color2;
title_color = m_inactive_window_title_color;
middle_border_color = Color::MidGray;
}
m_back_painter->fill_rect_with_gradient(titlebar_rect, border_color, border_color2);
for (int i = 2; i <= titlebar_inner_rect.height() - 4; i += 2) {
m_back_painter->draw_line({ titlebar_title_rect.right() + 4, titlebar_inner_rect.y() + i }, { close_button_rect.left() - 3, titlebar_inner_rect.y() + i }, border_color);
}
m_back_painter->draw_rect(border_rect, middle_border_color);
m_back_painter->draw_rect(outer_rect, border_color);
m_back_painter->draw_rect(inner_border_rect, border_color);
m_back_painter->set_font(Font::default_bold_font());
m_back_painter->draw_text(titlebar_title_rect, window.title(), TextAlignment::CenterLeft, title_color);
m_back_painter->set_font(font());
if (!s_close_button_bitmap)
s_close_button_bitmap = &CharacterBitmap::create_from_ascii(s_close_button_bitmap_data, s_close_button_bitmap_width, s_close_button_bitmap_height).leak_ref();
m_back_painter->fill_rect_with_gradient(close_button_rect.shrunken(2, 2), Color::LightGray, Color::White);
m_back_painter->blit(titlebar_icon_rect.location(), window.icon(), window.icon().rect());
m_back_painter->draw_rect(close_button_rect, Color::DarkGray);
auto x_location = close_button_rect.center();
x_location.move_by(-(s_close_button_bitmap_width / 2), -(s_close_button_bitmap_height / 2));
m_back_painter->draw_bitmap(x_location, *s_close_button_bitmap, Color::Black);
#ifdef DEBUG_WID_IN_TITLE_BAR
Color metadata_color(96, 96, 96);
m_back_painter->draw_text(
titlebar_inner_rect,
String::format("%d:%d", window.pid(), window.window_id()),
TextAlignment::CenterRight,
metadata_color
);
#endif
}
void WSWindowManager::add_window(WSWindow& window)
{
m_windows.set(&window);
m_windows_in_order.append(&window);
if (!active_window())
set_active_window(&window);
if (m_switcher.is_visible() && window.type() != WSWindowType::WindowSwitcher)
m_switcher.refresh();
}
void WSWindowManager::move_to_front(WSWindow& window)
{
if (m_windows_in_order.tail() != &window)
invalidate(window);
m_windows_in_order.remove(&window);
m_windows_in_order.append(&window);
}
void WSWindowManager::remove_window(WSWindow& window)
{
if (!m_windows.contains(&window))
return;
invalidate(window);
m_windows.remove(&window);
m_windows_in_order.remove(&window);
if (!active_window() && !m_windows.is_empty())
set_active_window(*m_windows.begin());
if (m_switcher.is_visible() && window.type() != WSWindowType::WindowSwitcher)
m_switcher.refresh();
}
void WSWindowManager::notify_title_changed(WSWindow& window)
{
dbgprintf("[WM] WSWindow{%p} title set to '%s'\n", &window, window.title().characters());
invalidate(outer_window_rect(window));
if (m_switcher.is_visible())
m_switcher.refresh();
}
void WSWindowManager::notify_rect_changed(WSWindow& window, const Rect& old_rect, const Rect& new_rect)
{
dbgprintf("[WM] WSWindow %p rect changed (%d,%d %dx%d) -> (%d,%d %dx%d)\n", &window, old_rect.x(), old_rect.y(), old_rect.width(), old_rect.height(), new_rect.x(), new_rect.y(), new_rect.width(), new_rect.height());
invalidate(outer_window_rect(old_rect));
invalidate(outer_window_rect(new_rect));
if (m_switcher.is_visible() && window.type() != WSWindowType::WindowSwitcher)
m_switcher.refresh();
}
void WSWindowManager::handle_menu_mouse_event(WSMenu& menu, WSMouseEvent& event)
{
bool is_hover_with_any_menu_open = event.type() == WSMouseEvent::MouseMove && m_current_menu;
bool is_mousedown_with_left_button = event.type() == WSMouseEvent::MouseDown && event.button() == MouseButton::Left;
bool should_open_menu = &menu != current_menu() && (is_hover_with_any_menu_open || is_mousedown_with_left_button);
if (should_open_menu) {
if (current_menu() == &menu)
return;
close_current_menu();
if (!menu.is_empty()) {
auto& menu_window = menu.ensure_menu_window();
menu_window.move_to({ menu.rect_in_menubar().x(), menu.rect_in_menubar().bottom() });
menu_window.set_visible(true);
}
m_current_menu = menu.make_weak_ptr();
return;
}
if (event.type() == WSMouseEvent::MouseDown && event.button() == MouseButton::Left) {
close_current_menu();
return;
}
}
void WSWindowManager::close_current_menu()
{
if (m_current_menu && m_current_menu->menu_window())
m_current_menu->menu_window()->set_visible(false);
m_current_menu = nullptr;
}
void WSWindowManager::handle_menubar_mouse_event(WSMouseEvent& event)
{
for_each_active_menubar_menu([&] (WSMenu& menu) {
if (menu.rect_in_menubar().contains(event.position())) {
handle_menu_mouse_event(menu, event);
return false;
}
return true;
});
}
void WSWindowManager::handle_close_button_mouse_event(WSWindow& window, WSMouseEvent& event)
{
if (event.type() == WSMessage::MouseDown && event.button() == MouseButton::Left) {
WSMessage message(WSMessage::WindowCloseRequest);
window.on_message(message);
return;
}
}
void WSWindowManager::start_window_drag(WSWindow& window, WSMouseEvent& event)
{
#ifdef DRAG_DEBUG
printf("[WM] Begin dragging WSWindow{%p}\n", &window);
#endif
m_drag_window = window.make_weak_ptr();;
m_drag_origin = event.position();
m_drag_window_origin = window.position();
invalidate(window);
}
void WSWindowManager::start_window_resize(WSWindow& window, WSMouseEvent& event)
{
constexpr ResizeDirection direction_for_hot_area[3][3] = {
{ ResizeDirection::UpLeft, ResizeDirection::Up, ResizeDirection::UpRight },
{ ResizeDirection::Left, ResizeDirection::None, ResizeDirection::Right },
{ ResizeDirection::DownLeft, ResizeDirection::Down, ResizeDirection::DownRight },
};
Rect outer_rect = outer_window_rect(window);
ASSERT(outer_rect.contains(event.position()));
int window_relative_x = event.x() - outer_rect.x();
int window_relative_y = event.y() - outer_rect.y();
int hot_area_row = window_relative_y / (outer_rect.height() / 3);
int hot_area_column = window_relative_x / (outer_rect.width() / 3);
ASSERT(hot_area_row >= 0 && hot_area_row <= 2);
ASSERT(hot_area_column >= 0 && hot_area_column <= 2);
m_resize_direction = direction_for_hot_area[hot_area_row][hot_area_column];
if (m_resize_direction == ResizeDirection::None) {
ASSERT(!m_resize_window);
return;
}
#ifdef RESIZE_DEBUG
printf("[WM] Begin resizing WSWindow{%p}\n", &window);
#endif
m_resize_window = window.make_weak_ptr();;
m_resize_origin = event.position();
m_resize_window_original_rect = window.rect();
m_resize_window->set_has_painted_since_last_resize(true);
invalidate(window);
}
void WSWindowManager::process_mouse_event(WSMouseEvent& event, WSWindow*& event_window)
{
event_window = nullptr;
if (m_drag_window) {
if (event.type() == WSMessage::MouseUp && event.button() == MouseButton::Left) {
#ifdef DRAG_DEBUG
printf("[WM] Finish dragging WSWindow{%p}\n", m_drag_window.ptr());
#endif
invalidate(*m_drag_window);
m_drag_window = nullptr;
return;
}
if (event.type() == WSMessage::MouseMove) {
auto old_window_rect = m_drag_window->rect();
Point pos = m_drag_window_origin;
#ifdef DRAG_DEBUG
dbgprintf("[WM] Dragging [origin: %d,%d] now: %d,%d\n", m_drag_origin.x(), m_drag_origin.y(), event.x(), event.y());
#endif
pos.move_by(event.x() - m_drag_origin.x(), event.y() - m_drag_origin.y());
m_drag_window->set_position_without_repaint(pos);
invalidate(outer_window_rect(old_window_rect));
invalidate(outer_window_rect(m_drag_window->rect()));
return;
}
}
if (m_resize_window) {
if (event.type() == WSMessage::MouseUp && event.button() == MouseButton::Right) {
#ifdef RESIZE_DEBUG
printf("[WM] Finish resizing WSWindow{%p}\n", m_resize_window.ptr());
#endif
WSMessageLoop::the().post_message(*m_resize_window, make<WSResizeEvent>(m_resize_window->rect(), m_resize_window->rect()));
invalidate(*m_resize_window);
m_resize_window = nullptr;
return;
}
if (event.type() == WSMessage::MouseMove) {
auto old_rect = m_resize_window->rect();
int diff_x = event.x() - m_resize_origin.x();
int diff_y = event.y() - m_resize_origin.y();
int change_x = 0;
int change_y = 0;
int change_w = 0;
int change_h = 0;
switch (m_resize_direction) {
case ResizeDirection::DownRight:
change_w = diff_x;
change_h = diff_y;
break;
case ResizeDirection::Right:
change_w = diff_x;
break;
case ResizeDirection::UpRight:
change_w = diff_x;
change_y = diff_y;
change_h = -diff_y;
break;
case ResizeDirection::Up:
change_y = diff_y;
change_h = -diff_y;
break;
case ResizeDirection::UpLeft:
change_x = diff_x;
change_w = -diff_x;
change_y = diff_y;
change_h = -diff_y;
break;
case ResizeDirection::Left:
change_x = diff_x;
change_w = -diff_x;
break;
case ResizeDirection::DownLeft:
change_x = diff_x;
change_w = -diff_x;
change_h = diff_y;
break;
case ResizeDirection::Down:
change_h = diff_y;
break;
default:
ASSERT_NOT_REACHED();
}
auto new_rect = m_resize_window_original_rect;
Size minimum_size { 50, 50 };
new_rect.set_x(new_rect.x() + change_x);
new_rect.set_y(new_rect.y() + change_y);
new_rect.set_width(max(minimum_size.width(), new_rect.width() + change_w));
new_rect.set_height(max(minimum_size.height(), new_rect.height() + change_h));
if (!m_resize_window->size_increment().is_null()) {
int horizontal_incs = (new_rect.width() - m_resize_window->base_size().width()) / m_resize_window->size_increment().width();
new_rect.set_width(m_resize_window->base_size().width() + horizontal_incs * m_resize_window->size_increment().width());
int vertical_incs = (new_rect.height() - m_resize_window->base_size().height()) / m_resize_window->size_increment().height();
new_rect.set_height(m_resize_window->base_size().height() + vertical_incs * m_resize_window->size_increment().height());
}
if (m_resize_window->rect() == new_rect)
return;
#ifdef RESIZE_DEBUG
dbgprintf("[WM] Resizing [original: %s] now: %s\n",
m_resize_window_original_rect.to_string().characters(),
new_rect.to_string().characters());
#endif
m_resize_window->set_rect(new_rect);
if (m_resize_window->has_painted_since_last_resize()) {
m_resize_window->set_has_painted_since_last_resize(false);
#ifdef RESIZE_DEBUG
dbgprintf("[WM] I'm gonna wait for %s\n", new_rect.to_string().characters());
#endif
m_resize_window->set_last_lazy_resize_rect(new_rect);
WSMessageLoop::the().post_message(*m_resize_window, make<WSResizeEvent>(old_rect, new_rect));
}
return;
}
}
for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
if (!window->global_cursor_tracking())
continue;
ASSERT(window->is_visible()); // Maybe this should be supported? Idk. Let's catch it and think about it later.
Point position { event.x() - window->rect().x(), event.y() - window->rect().y() };
auto local_event = make<WSMouseEvent>(event.type(), position, event.buttons(), event.button());
window->on_message(*local_event);
}
if (menubar_rect().contains(event.position())) {
handle_menubar_mouse_event(event);
return;
}
if (m_current_menu && m_current_menu->menu_window()) {
bool event_is_inside_current_menu = m_current_menu->menu_window()->rect().contains(event.position());
if (!event_is_inside_current_menu) {
if (m_current_menu->hovered_item())
m_current_menu->clear_hovered_item();
if (event.type() == WSMessage::MouseDown || event.type() == WSMessage::MouseUp)
close_current_menu();
}
}
for_each_visible_window_from_front_to_back([&] (WSWindow& window) {
if (window.type() == WSWindowType::Normal && outer_window_rect(window).contains(event.position())) {
if (m_keyboard_modifiers == Mod_Logo && event.type() == WSMessage::MouseDown && event.button() == MouseButton::Left) {
start_window_drag(window, event);
return IterationDecision::Abort;
}
if (m_keyboard_modifiers == Mod_Logo && event.type() == WSMessage::MouseDown && event.button() == MouseButton::Right) {
start_window_resize(window, event);
return IterationDecision::Abort;
}
}
if (window.type() == WSWindowType::Normal && title_bar_rect(window.rect()).contains(event.position())) {
if (event.type() == WSMessage::MouseDown) {
move_to_front(window);
set_active_window(&window);
}
if (close_button_rect_for_window(window.rect()).contains(event.position())) {
handle_close_button_mouse_event(window, event);
return IterationDecision::Abort;
}
if (event.type() == WSMessage::MouseDown && event.button() == MouseButton::Left)
start_window_drag(window, event);
return IterationDecision::Abort;
}
if (window.rect().contains(event.position())) {
if (window.type() == WSWindowType::Normal && event.type() == WSMessage::MouseDown) {
move_to_front(window);
set_active_window(&window);
}
event_window = &window;
if (!window.global_cursor_tracking()) {
// FIXME: Should we just alter the coordinates of the existing MouseEvent and pass it through?
Point position { event.x() - window.rect().x(), event.y() - window.rect().y() };
auto local_event = make<WSMouseEvent>(event.type(), position, event.buttons(), event.button());
window.on_message(*local_event);
}
return IterationDecision::Abort;
}
return IterationDecision::Continue;
});
}
void WSWindowManager::compose()
{
auto dirty_rects = move(m_dirty_rects);
auto cursor_location = m_screen.cursor_location();
dirty_rects.add(m_last_cursor_rect);
dirty_rects.add({ cursor_location.x(), cursor_location.y(), (int)m_cursor_bitmap_inner->width(), (int)m_cursor_bitmap_inner->height() });
#ifdef DEBUG_COUNTERS
dbgprintf("[WM] compose #%u (%u rects)\n", ++m_compose_count, dirty_rects.rects().size());
#endif
auto any_opaque_window_contains_rect = [this] (const Rect& r) {
for (auto* window = m_windows_in_order.head(); window; window = window->next()) {
if (!window->is_visible())
continue;
if (window->opacity() < 1.0f)
continue;
if (window->has_alpha_channel()) {
// FIXME: Just because the window has an alpha channel doesn't mean it's not opaque.
// Maybe there's some way we could know this?
continue;
}
if (outer_window_rect(*window).contains(r))
return true;
}
return false;
};
auto any_dirty_rect_intersects_window = [&dirty_rects] (const WSWindow& window) {
auto window_rect = outer_window_rect(window);
for (auto& dirty_rect : dirty_rects.rects()) {
if (dirty_rect.intersects(window_rect))
return true;
}
return false;
};
for (auto& dirty_rect : dirty_rects.rects()) {
if (any_opaque_window_contains_rect(dirty_rect))
continue;
if (!m_wallpaper)
m_back_painter->fill_rect(dirty_rect, m_background_color);
else
m_back_painter->blit(dirty_rect.location(), *m_wallpaper, dirty_rect);
}
auto compose_window = [&] (WSWindow& window) {
RetainPtr<GraphicsBitmap> backing_store = window.backing_store();
if (!backing_store)
return;
if (!any_dirty_rect_intersects_window(window))
return;
for (auto& dirty_rect : dirty_rects.rects()) {
m_back_painter->set_clip_rect(dirty_rect);
paint_window_frame(window);
Rect dirty_rect_in_window_coordinates = Rect::intersection(dirty_rect, window.rect());
if (dirty_rect_in_window_coordinates.is_empty()) {
m_back_painter->clear_clip_rect();
continue;
}
dirty_rect_in_window_coordinates.set_x(dirty_rect_in_window_coordinates.x() - window.x());
dirty_rect_in_window_coordinates.set_y(dirty_rect_in_window_coordinates.y() - window.y());
auto dst = window.position();
dst.move_by(dirty_rect_in_window_coordinates.location());
if (window.opacity() == 1.0f)
m_back_painter->blit(dst, *backing_store, dirty_rect_in_window_coordinates);
else
m_back_painter->blit_with_opacity(dst, *backing_store, dirty_rect_in_window_coordinates, window.opacity());
m_back_painter->clear_clip_rect();
}
m_back_painter->clear_clip_rect();
};
for_each_visible_window_from_back_to_front([&] (WSWindow& window) {
if (&window != m_highlight_window.ptr())
compose_window(window);
return IterationDecision::Continue;
});
if (m_highlight_window)
compose_window(*m_highlight_window);
draw_menubar();
if (m_switcher.is_visible())
compose_window(*m_switcher.switcher_window());
draw_cursor();
if (m_flash_flush) {
for (auto& rect : dirty_rects.rects())
m_front_painter->fill_rect(rect, Color::Yellow);
}
flip_buffers();
for (auto& r : dirty_rects.rects())
flush(r);
}
void WSWindowManager::invalidate_cursor()
{
auto cursor_location = m_screen.cursor_location();
Rect cursor_rect { cursor_location.x(), cursor_location.y(), (int)m_cursor_bitmap_inner->width(), (int)m_cursor_bitmap_inner->height() };
invalidate(cursor_rect);
}
Rect WSWindowManager::menubar_rect() const
{
return { 0, 0, m_screen_rect.width(), 18 };
}
void WSWindowManager::draw_menubar()
{
m_back_painter->fill_rect(menubar_rect(), Color::LightGray);
m_back_painter->draw_line({ 0, menubar_rect().bottom() }, { menubar_rect().right(), menubar_rect().bottom() }, Color::White);
int index = 0;
for_each_active_menubar_menu([&] (WSMenu& menu) {
Color text_color = Color::Black;
if (&menu == current_menu()) {
m_back_painter->fill_rect(menu.rect_in_menubar(), menu_selection_color());
text_color = Color::White;
}
if (index == 1)
m_back_painter->set_font(Font::default_bold_font());
m_back_painter->draw_text(menu.text_rect_in_menubar(), menu.name(), TextAlignment::CenterLeft, text_color);
if (index == 1)
m_back_painter->set_font(font());
++index;
return true;
});
time_t now = time(nullptr);
auto* tm = localtime(&now);
auto time_text = String::format("%4u-%02u-%02u %02u:%02u:%02u\n",
tm->tm_year + 1900,
tm->tm_mon + 1,
tm->tm_mday,
tm->tm_hour,
tm->tm_min,
tm->tm_sec);
auto time_rect = menubar_rect().translated(-(menubar_menu_margin() / 2), 0);
m_back_painter->draw_text(time_rect, time_text, TextAlignment::CenterRight, Color::Black);
Rect cpu_rect { time_rect.right() - font().width(time_text) - (int)m_cpu_history.capacity() - 10, time_rect.y() + 1, (int)m_cpu_history.capacity(), time_rect.height() - 2 };
m_back_painter->fill_rect(cpu_rect, Color::Black);
int i = m_cpu_history.capacity() - m_cpu_history.size();
for (auto cpu_usage : m_cpu_history) {
m_back_painter->draw_line(
{ cpu_rect.x() + i, cpu_rect.bottom() },
{ cpu_rect.x() + i, (int)(cpu_rect.y() + (cpu_rect.height() - (cpu_usage * (float)cpu_rect.height()))) },
Color(0, 200, 0)
);
++i;
}
}
void WSWindowManager::draw_window_switcher()
{
if (m_switcher.is_visible())
m_switcher.draw();
}
void WSWindowManager::draw_cursor()
{
auto cursor_location = m_screen.cursor_location();
Rect cursor_rect { cursor_location.x(), cursor_location.y(), (int)m_cursor_bitmap_inner->width(), (int)m_cursor_bitmap_inner->height() };
Color inner_color = Color::White;
Color outer_color = Color::Black;
if (m_screen.mouse_button_state() & (unsigned)MouseButton::Left)
swap(inner_color, outer_color);
m_back_painter->draw_bitmap(cursor_location, *m_cursor_bitmap_inner, inner_color);
m_back_painter->draw_bitmap(cursor_location, *m_cursor_bitmap_outer, outer_color);
m_last_cursor_rect = cursor_rect;
}
void WSWindowManager::on_message(WSMessage& message)
{
if (message.is_mouse_event()) {
WSWindow* event_window = nullptr;
process_mouse_event(static_cast<WSMouseEvent&>(message), event_window);
set_hovered_window(event_window);
return;
}
if (message.is_key_event()) {
auto& key_event = static_cast<WSKeyEvent&>(message);
m_keyboard_modifiers = key_event.modifiers();
if (key_event.type() == WSMessage::KeyDown && key_event.modifiers() == Mod_Logo && key_event.key() == Key_Tab)
m_switcher.show();
if (m_switcher.is_visible()) {
m_switcher.on_key_event(key_event);
return;
}
if (m_active_window)
return m_active_window->on_message(message);
return;
}
if (message.type() == WSMessage::WM_DeferredCompose) {
m_pending_compose_event = false;
compose();
return;
}
}
void WSWindowManager::set_highlight_window(WSWindow* window)
{
if (window == m_highlight_window.ptr())
return;
if (auto* previous_highlight_window = m_highlight_window.ptr())
invalidate(*previous_highlight_window);
m_highlight_window = window ? window->make_weak_ptr() : nullptr;
if (m_highlight_window)
invalidate(*m_highlight_window);
}
void WSWindowManager::set_active_window(WSWindow* window)
{
if (window->type() != WSWindowType::Normal) {
dbgprintf("WSWindowManager: Attempted to make a non-normal window active.\n");
return;
}
if (window == m_active_window.ptr())
return;
if (auto* previously_active_window = m_active_window.ptr()) {
WSMessageLoop::the().post_message(*previously_active_window, make<WSMessage>(WSMessage::WindowDeactivated));
invalidate(*previously_active_window);
}
m_active_window = window->make_weak_ptr();
if (m_active_window) {
WSMessageLoop::the().post_message(*m_active_window, make<WSMessage>(WSMessage::WindowActivated));
invalidate(*m_active_window);
auto* client = window->client();
ASSERT(client);
set_current_menubar(client->app_menubar());
}
}
void WSWindowManager::set_hovered_window(WSWindow* window)
{
if (m_hovered_window.ptr() == window)
return;
if (m_hovered_window)
WSMessageLoop::the().post_message(*m_hovered_window, make<WSMessage>(WSMessage::WindowLeft));
m_hovered_window = window ? window->make_weak_ptr() : nullptr;
if (m_hovered_window)
WSMessageLoop::the().post_message(*m_hovered_window, make<WSMessage>(WSMessage::WindowEntered));
}
void WSWindowManager::invalidate()
{
m_dirty_rects.clear_with_capacity();
invalidate(m_screen_rect);
}
void WSWindowManager::recompose_immediately()
{
m_dirty_rects.clear_with_capacity();
invalidate(m_screen_rect, false);
}
void WSWindowManager::invalidate(const Rect& a_rect, bool should_schedule_compose_event)
{
auto rect = Rect::intersection(a_rect, m_screen_rect);
if (rect.is_empty())
return;
m_dirty_rects.add(rect);
if (should_schedule_compose_event && !m_pending_compose_event) {
WSMessageLoop::the().post_message(*this, make<WSMessage>(WSMessage::WM_DeferredCompose));
m_pending_compose_event = true;
}
}
void WSWindowManager::invalidate(const WSWindow& window)
{
if (window.type() == WSWindowType::Menu) {
invalidate(menu_window_rect(window.rect()));
return;
}
if (window.type() == WSWindowType::Normal) {
invalidate(outer_window_rect(window));
return;
}
if (window.type() == WSWindowType::WindowSwitcher) {
invalidate(window.rect());
return;
}
ASSERT_NOT_REACHED();
}
void WSWindowManager::invalidate(const WSWindow& window, const Rect& rect)
{
if (rect.is_empty()) {
invalidate(window);
return;
}
auto outer_rect = outer_window_rect(window);
auto inner_rect = rect;
inner_rect.move_by(window.position());
// FIXME: This seems slightly wrong; the inner rect shouldn't intersect the border part of the outer rect.
inner_rect.intersect(outer_rect);
invalidate(inner_rect);
}
void WSWindowManager::flush(const Rect& a_rect)
{
auto rect = Rect::intersection(a_rect, m_screen_rect);
#ifdef DEBUG_COUNTERS
dbgprintf("[WM] flush #%u (%d,%d %dx%d)\n", ++m_flush_count, rect.x(), rect.y(), rect.width(), rect.height());
#endif
const RGBA32* front_ptr = m_front_bitmap->scanline(rect.y()) + rect.x();
RGBA32* back_ptr = m_back_bitmap->scanline(rect.y()) + rect.x();
size_t pitch = m_back_bitmap->pitch();
for (int y = 0; y < rect.height(); ++y) {
fast_dword_copy(back_ptr, front_ptr, rect.width());
front_ptr = (const RGBA32*)((const byte*)front_ptr + pitch);
back_ptr = (RGBA32*)((byte*)back_ptr + pitch);
}
}
void WSWindowManager::close_menu(WSMenu& menu)
{
if (current_menu() == &menu)
close_current_menu();
}
void WSWindowManager::close_menubar(WSMenuBar& menubar)
{
if (current_menubar() == &menubar)
set_current_menubar(nullptr);
}
const WSClientConnection* WSWindowManager::active_client() const
{
if (m_active_window)
return m_active_window->client();
return nullptr;
}
void WSWindowManager::notify_client_changed_app_menubar(WSClientConnection& client)
{
if (active_client() == &client)
set_current_menubar(client.app_menubar());
invalidate(menubar_rect());
}