ladybird/Kernel/ProcessGUI.cpp
Andreas Kling f7261d7b26 Let's use the existing Rect and Color types in the GUI API.
Any type that doesn't depend on indirect data can probably be used here.
2019-01-13 05:31:07 +01:00

134 lines
3.8 KiB
C++

#include "Process.h"
#include "MemoryManager.h"
#include <LibC/errno_numbers.h>
#include <Widgets/AbstractScreen.h>
#include <Widgets/FrameBuffer.h>
#include <Widgets/EventLoop.h>
#include <Widgets/Font.h>
#include <Widgets/Button.h>
#include <Widgets/Label.h>
#include <Widgets/Widget.h>
#include <Widgets/Window.h>
#include <Widgets/WindowManager.h>
void Process::initialize_gui_statics()
{
Font::initialize();
FrameBuffer::initialize();
EventLoop::initialize();
WindowManager::initialize();
AbstractScreen::initialize();
new EventLoop;
}
static void wait_for_gui_server()
{
// FIXME: Time out after a while and return an error.
while (!EventLoop::main().running())
sleep(10);
}
int Process::gui$create_window(const GUI_CreateWindowParameters* user_params)
{
wait_for_gui_server();
if (!validate_read_typed(user_params))
return -EFAULT;
auto params = *user_params;
if (params.rect.is_empty())
return -EINVAL;
ProcessPagingScope scope(EventLoop::main().server_process());
auto* window = new Window;
if (!window)
return -ENOMEM;
int window_id = m_windows.size();
m_windows.append(window->makeWeakPtr());
window->setTitle(params.title);
window->setRect(params.rect);
auto* main_widget = new Widget;
window->setMainWidget(main_widget);
main_widget->setWindowRelativeRect({ 0, 0, params.rect.width(), params.rect.height() });
main_widget->setBackgroundColor(params.background_color);
main_widget->setFillWithBackgroundColor(true);
dbgprintf("%s<%u> gui$create_window: %d with rect {%d,%d %dx%d}\n", name().characters(), pid(), window_id, params.rect.x(), params.rect.y(), params.rect.width(), params.rect.height());
return window_id;
}
int Process::gui$destroy_window(int window_id)
{
dbgprintf("%s<%u> gui$destroy_window (window_id=%d)\n", name().characters(), pid(), window_id);
if (window_id < 0)
return -EINVAL;
if (window_id >= static_cast<int>(m_windows.size()))
return -EBADWINDOW;
auto* window = m_windows[window_id].ptr();
if (!window)
return -EBADWINDOW;
window->deleteLater();
return 0;
}
int Process::gui$create_widget(int window_id, const GUI_CreateWidgetParameters* user_params)
{
if (!validate_read_typed(user_params))
return -EFAULT;
if (window_id < 0)
return -EINVAL;
if (window_id >= static_cast<int>(m_windows.size()))
return -EINVAL;
if (!m_windows[window_id])
return -EINVAL;
auto& window = *m_windows[window_id];
auto params = *user_params;
if (params.rect.is_empty())
return -EINVAL;
Widget* widget = nullptr;
switch (params.type) {
case GUI_WidgetType::Label:
widget = new Label(window.mainWidget());
static_cast<Label*>(widget)->setText(params.text);
break;
case GUI_WidgetType::Button:
widget = new Button(window.mainWidget());
static_cast<Button*>(widget)->setCaption(params.text);
break;
}
int widget_id = m_widgets.size();
m_widgets.append(widget->makeWeakPtr());
widget->setWindowRelativeRect(params.rect);
widget->setBackgroundColor(params.background_color);
widget->setFillWithBackgroundColor(params.opaque);
dbgprintf("%s<%u> gui$create_widget: %d with rect {%d,%d %dx%d}\n", name().characters(), pid(), widget_id, params.rect.x(), params.rect.y(), params.rect.width(), params.rect.height());
return window_id;
}
int Process::gui$destroy_widget(int widget_id)
{
dbgprintf("%s<%u> gui$destroy_widget (widget_id=%d)\n", name().characters(), pid(), widget_id);
if (widget_id < 0)
return -EINVAL;
if (widget_id >= static_cast<int>(m_widgets.size()))
return -EBADWINDOW;
auto* widget = m_widgets[widget_id].ptr();
if (!widget)
return -EBADWIDGET;
widget->deleteLater();
return 0;
}