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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <LibGUI/ScrollableWidget.h>
class FormWidget;
class Tool;
class WidgetTreeModel;
class FormEditorWidget final : public GUI::ScrollableWidget {
C_OBJECT(FormEditorWidget)
public:
virtual ~FormEditorWidget() override;
FormWidget& form_widget() { return *m_form_widget; }
const FormWidget& form_widget() const { return *m_form_widget; }
Tool& tool() { return *m_tool; }
const Tool& tool() const { return *m_tool; }
void set_tool(NonnullOwnPtr<Tool>);
WidgetTreeModel& model();
class WidgetSelection {
public:
Function<void(GUI::Widget&)> on_remove;
Function<void(GUI::Widget&)> on_add;
Function<void()> on_clear;
void enable_hooks() { m_hooks_enabled = true; }
void disable_hooks() { m_hooks_enabled = false; }
bool is_empty() const
{
return m_widgets.is_empty();
}
bool contains(GUI::Widget& widget) const
{
return m_widgets.contains(&widget);
}
void toggle(GUI::Widget& widget)
{
if (contains(widget))
remove(widget);
else
add(widget);
}
void set(GUI::Widget& widget)
{
clear();
add(widget);
}
void remove(GUI::Widget& widget)
{
ASSERT(m_widgets.contains(&widget));
m_widgets.remove(&widget);
if (m_hooks_enabled && on_remove)
on_remove(widget);
}
void add(GUI::Widget& widget)
{
m_widgets.set(&widget);
if (m_hooks_enabled && on_add)
on_add(widget);
}
void clear()
{
m_widgets.clear();
if (m_hooks_enabled && on_clear)
on_clear();
}
template<typename Callback>
void for_each(Callback callback)
{
for (auto& it : m_widgets) {
if (callback(*it) == IterationDecision::Break)
break;
}
}
WidgetSelection() {}
private:
HashTable<GUI::Widget*> m_widgets;
bool m_hooks_enabled { true };
};
WidgetSelection& selection() { return m_selection; }
private:
virtual void paint_event(GUI::PaintEvent&) override;
explicit FormEditorWidget(GUI::Widget* parent);
RefPtr<FormWidget> m_form_widget;
RefPtr<WidgetTreeModel> m_widget_tree_model;
NonnullOwnPtr<Tool> m_tool;
WidgetSelection m_selection;
};
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