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0583f75926
This makes IconView aware of the text width of the ModelEditingDelegate widget when editing an index and allows us to resize the content rect as needed. This also removes the border from the textbox since it could collide with the icon in ColumnsView. While editing we also skip painting the inactive selection rect since it would otherwise show when the content rect gets smaller.
105 lines
2.4 KiB
C++
105 lines
2.4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGUI/Model.h>
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#include <LibGUI/TextBox.h>
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#include <LibGUI/Widget.h>
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namespace GUI {
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class ModelEditingDelegate {
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public:
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enum SelectionBehavior {
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DoNotSelect,
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SelectAll,
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};
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virtual ~ModelEditingDelegate() { }
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void bind(Model& model, const ModelIndex& index)
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{
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if (m_model.ptr() == &model && m_index == index)
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return;
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m_model = model;
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m_index = index;
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m_widget = create_widget();
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}
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Widget* widget() { return m_widget; }
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const Widget* widget() const { return m_widget; }
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Function<void()> on_commit;
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Function<void()> on_rollback;
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Function<void()> on_change;
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virtual Variant value() const = 0;
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virtual void set_value(Variant const&, SelectionBehavior selection_behavior = SelectionBehavior::SelectAll) = 0;
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virtual void will_begin_editing() { }
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protected:
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ModelEditingDelegate() { }
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virtual RefPtr<Widget> create_widget() = 0;
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void commit()
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{
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if (on_commit)
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on_commit();
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}
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void rollback()
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{
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if (on_rollback)
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on_rollback();
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}
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void change()
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{
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if (on_change)
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on_change();
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}
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const ModelIndex& index() const { return m_index; }
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private:
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RefPtr<Model> m_model;
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ModelIndex m_index;
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RefPtr<Widget> m_widget;
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};
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class StringModelEditingDelegate : public ModelEditingDelegate {
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public:
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StringModelEditingDelegate() { }
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virtual ~StringModelEditingDelegate() override { }
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virtual RefPtr<Widget> create_widget() override
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{
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auto textbox = TextBox::construct();
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textbox->set_frame_shape(Gfx::FrameShape::NoFrame);
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textbox->on_return_pressed = [this] {
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commit();
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};
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textbox->on_escape_pressed = [this] {
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rollback();
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};
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textbox->on_change = [this] {
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change();
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};
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return textbox;
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}
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virtual Variant value() const override { return static_cast<const TextBox*>(widget())->text(); }
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virtual void set_value(Variant const& value, SelectionBehavior selection_behavior) override
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{
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auto& textbox = static_cast<TextBox&>(*widget());
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textbox.set_text(value.to_string());
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if (selection_behavior == SelectionBehavior::SelectAll)
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textbox.select_all();
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}
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};
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}
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