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Code Issues Activity Actions

Add basic GUI API for creating labels and buttons.

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This commit is contained in:
Andreas Kling 2019-01-13 05:03:17 +01:00
parent 17c7bf01a5
commit b2d86b7597
7 changed files with 99 additions and 8 deletions
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71
Kernel/ProcessGUI.cpp
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@ -5,6 +5,8 @@
#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>
@ -34,7 +36,7 @@ int Process::gui$create_window(const GUI_CreateWindowParameters* user_params)
if (!validate_read_typed(user_params))
return -EFAULT;
GUI_CreateWindowParameters params = *user_params;
auto params = *user_params;
Rect rect { params.rect.x, params.rect.y, params.rect.width, params.rect.height };
if (rect.is_empty())
@ -47,7 +49,7 @@ int Process::gui$create_window(const GUI_CreateWindowParameters* user_params)
return -ENOMEM;
int window_id = m_windows.size();
m_windows.append(window);
m_windows.append(window->makeWeakPtr());
window->setTitle(params.title);
window->setRect(rect);
@ -64,14 +66,71 @@ int Process::gui$create_window(const GUI_CreateWindowParameters* user_params)
int Process::gui$destroy_window(int window_id)
{
wait_for_gui_server();
dbgprintf("%s<%u> gui$destroy_window (window_id=%d)\n", name().characters(), pid(), window_id);
if (window_id < 0)
return -EINVAL;
if (window_id >= static_cast<int>(m_windows.size()))
return -EBADWIN;
auto* window = m_windows[window_id];
m_windows.remove(window_id);
return -EBADWINDOW;
auto* window = m_windows[window_id].ptr();
if (!window)
return -EBADWINDOW;
window->deleteLater();
return 0;
}
int Process::gui$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;
Rect rect { params.rect.x, params.rect.y, params.rect.width, params.rect.height };
if (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(rect);
widget->setBackgroundColor(params.background_color);
widget->setFillWithBackgroundColor(params.opaque);
dbgprintf("%s<%u> gui$create_widget: %d with rect {%d,%d %dx%d}\n", name().characters(), pid(), widget_id, rect.x(), rect.y(), rect.width(), rect.height());
return window_id;
}
int Process::gui$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;
}