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#include "WindowManager.h"
#include "Painter.h"
#include "Widget.h"
#include "Window.h"
#include "AbstractScreen.h"
#include "TerminalWidget.h"
#include "EventLoop.h"
extern TerminalWidget* g_tw;
static const int windowFrameWidth = 2;
static const int windowTitleBarHeight = 16;
static inline Rect titleBarRectForWindow(const Window& window)
{
return {
window.x() - windowFrameWidth,
window.y() - windowTitleBarHeight - windowFrameWidth,
window.width() + windowFrameWidth * 2,
windowTitleBarHeight + windowFrameWidth
};
}
WindowManager& WindowManager::the()
{
static WindowManager* s_the = new WindowManager;
return *s_the;
}
WindowManager::WindowManager()
{
m_windowBorderColor = Color(0x00, 0x00, 0x80);
m_windowTitleColor = Color(0xff, 0xff, 0xff);
}
WindowManager::~WindowManager()
{
}
void WindowManager::paintWindowFrames()
{
for (auto* window : m_windows)
paintWindowFrame(*window);
}
void WindowManager::paintWindowFrame(Window& window)
{
Painter p(*m_rootWidget);
//printf("[WM] paintWindowFrame {%p}, rect: %d,%d %dx%d\n", &window, window.rect().x(), window.rect().y(), window.rect().width(), window.rect().height());
Rect topRect = titleBarRectForWindow(window);
Rect bottomRect {
window.x() - windowFrameWidth,
window.y() + window.height(),
window.width() + windowFrameWidth * 2,
windowFrameWidth };
Rect leftRect {
window.x() - windowFrameWidth,
window.y(),
windowFrameWidth,
window.height()
};
Rect rightRect {
window.x() + window.width(),
window.y(),
windowFrameWidth,
window.height()
};
Rect borderRect {
topRect.x() - 1,
topRect.y() - 1,
topRect.width() + 2,
windowFrameWidth + windowTitleBarHeight + window.rect().height() + 4
};
if (!m_lastDragRect.isEmpty()) {
p.xorRect(m_lastDragRect, Color(255, 0, 0));
m_lastDragRect = Rect();
}
if (m_dragWindow == &window) {
borderRect.inflate(2, 2);
p.xorRect(borderRect, Color(255, 0, 0));
m_lastDragRect = borderRect;
return;
}
p.drawRect(borderRect, Color(255, 255, 255));
borderRect.inflate(2, 2);
p.drawRect(borderRect, m_windowBorderColor);
p.fillRect(topRect, m_windowBorderColor);
p.fillRect(bottomRect, m_windowBorderColor);
p.fillRect(leftRect, m_windowBorderColor);
p.fillRect(rightRect, m_windowBorderColor);
p.drawText(topRect, window.title(), Painter::TextAlignment::Center, m_windowTitleColor);
}
void WindowManager::addWindow(Window& window)
{
m_windows.set(&window);
}
void WindowManager::notifyTitleChanged(Window& window)
{
//printf("[WM] Window{%p} title set to '%s'\n", &window, window.title().characters());
}
void WindowManager::notifyRectChanged(Window& window, const Rect& oldRect, const Rect& newRect)
{
//printf("[WM] Window %p rect changed (%d,%d %dx%d) -> (%d,%d %dx%d)\n", &window, oldRect.x(), oldRect.y(), oldRect.width(), oldRect.height(), newRect.x(), newRect.y(), newRect.width(), newRect.height());
}
void WindowManager::handleTitleBarMouseEvent(Window& window, MouseEvent& event)
{
if (event.type() == Event::MouseDown) {
printf("[WM] Begin dragging Window{%p}\n", &window);
m_dragWindow = &window;
m_dragOrigin = event.position();
m_dragWindowOrigin = window.position();
window.setIsBeingDragged(true);
return;
}
#if 0
byte r = (((double)rand()) / (double)RAND_MAX) * 255.0;
byte g = (((double)rand()) / (double)RAND_MAX) * 255.0;
byte b = (((double)rand()) / (double)RAND_MAX) * 255.0;
m_windowBorderColor = Color(r, g, b);
paintWindowFrame(window);
#endif
}
void WindowManager::processMouseEvent(MouseEvent& event)
{
if (event.type() == Event::MouseUp) {
if (m_dragWindow) {
printf("[WM] Finish dragging Window{%p}\n", m_dragWindow);
m_dragWindow->setIsBeingDragged(false);
m_dragWindow = nullptr;
EventLoop::main().postEvent(this, make<PaintEvent>());
return;
}
}
if (event.type() == Event::MouseMove) {
if (m_dragWindow) {
Point pos = m_dragWindowOrigin;
printf("[WM] Dragging [origin: %d,%d] now: %d,%d\n", m_dragOrigin.x(), m_dragOrigin.y(), event.x(), event.y());
pos.moveBy(event.x() - m_dragOrigin.x(), event.y() - m_dragOrigin.y());
m_dragWindow->setPosition(pos);
paintWindowFrame(*m_dragWindow);
return;
}
}
// FIXME: Respect z-order of windows...
for (auto* window : m_windows) {
if (titleBarRectForWindow(*window).contains(event.position())) {
handleTitleBarMouseEvent(*window, event);
return;
}
if (window->rect().contains(event.position())) {
// FIXME: Re-use the existing event instead of crafting a new one?
auto localEvent = make<MouseEvent>(event.type(), event.x() - window->rect().x(), event.y() - window->rect().y(), event.button());
window->event(*localEvent);
return;
}
}
// Otherwise: send it to root the root widget...
auto result = m_rootWidget->hitTest(event.x(), event.y());
//printf("hit test for %d,%d found: %s{%p} %d,%d\n", me.x(), me.y(), result.widget->className(), result.widget, result.localX, result.localY);
// FIXME: Re-use the existing event instead of crafting a new one?
auto localEvent = make<MouseEvent>(event.type(), result.localX, result.localY, event.button());
result.widget->event(*localEvent);
}
void WindowManager::handlePaintEvent(PaintEvent& event)
{
//printf("[WM] paint event\n");
m_rootWidget->event(event);
paintWindowFrames();
for (auto* window : m_windows) {
window->event(event);
}
}
void WindowManager::event(Event& event)
{
if (event.isMouseEvent())
return processMouseEvent(static_cast<MouseEvent&>(event));
if (event.isKeyEvent()) {
// FIXME: Implement proper focus.
Widget* focusedWidget = g_tw;
return focusedWidget->event(event);
}
if (event.isPaintEvent())
return handlePaintEvent(static_cast<PaintEvent&>(event));
return Object::event(event);
}
void WindowManager::setRootWidget(Widget* widget)
{
// FIXME: Should we support switching root widgets?
ASSERT(!m_rootWidget);
ASSERT(widget);
m_rootWidget = widget;
EventLoop::main().postEvent(m_rootWidget, make<ShowEvent>());
}
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