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ladybird/Libraries/LibGUI/ColumnsView.h

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Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
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/*
Meta: Claim copyright for files created by me This changes copyright holder to myself for the source code files that I've created or have (almost) completely rewritten. Not included are the files that were significantly changed by others even though it was me who originally created them (think HtmlView), or the many other files I've contributed code to.
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* Copyright (c) 2020, Sergey Bugaev <bugaevc@serenityos.org>
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
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* 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.
*/
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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#pragma once
#include <AK/Vector.h>
LibGUI: Remove leading G from filenames
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#include <LibGUI/AbstractView.h>
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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LibGUI: Put all classes in the GUI namespace and remove the leading G This took me a moment. Welcome to the new world of GUI::Widget! :^)
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namespace GUI {
class ColumnsView : public AbstractView {
C_OBJECT(ColumnsView)
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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public:
int model_column() const { return m_model_column; }
void set_model_column(int column) { m_model_column = column; }
LibGfx: Rename Rect,Point,Size => IntRect,IntPoint,IntSize This fits nicer with FloatRect,FloatPoint,FloatSize and gives a much better visual clue about what type of metric is being used.
2020-06-10 10:57:59 +02:00
virtual ModelIndex index_at_event_position(const Gfx::IntPoint&) const override;
LibGUI: Move index_at_event_position() up to GAbstractView It's now an abstract (pure virtual) public method in GAbstractView that individual widgets have to implement. This will allow us to move more selection-related logic into GAbstractView in order to share it between implementations.
2020-01-22 18:13:01 +03:00
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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private:
LibGUI: Remove parent parameter to GUI::Widget constructor
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ColumnsView();
virtual ~ColumnsView() override;
LibGUI: Put all classes in the GUI namespace and remove the leading G This took me a moment. Welcome to the new world of GUI::Widget! :^)
2020-02-02 15:07:41 +01:00
void push_column(ModelIndex& parent_index);
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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void update_column_sizes();
int item_height() const { return 16; }
int icon_size() const { return 16; }
int icon_spacing() const { return 2; }
int text_padding() const { return 2; }
LibGUI: Add a way for models to update without invalidating indexes This is really just a workaround to keep SystemMonitor's process table working right wrt selection retention during resorts (while also doing full index invalidation on things like ProfileViewer inversion.) It's starting to feel like the model abstraction is not super great and we'll need a better approach if we want to actually build some more dynamic functionality into our views.
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virtual void did_update_model(unsigned flags) override;
LibGUI: Put all classes in the GUI namespace and remove the leading G This took me a moment. Welcome to the new world of GUI::Widget! :^)
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virtual void paint_event(PaintEvent&) override;
virtual void mousedown_event(MouseEvent& event) override;
virtual void keydown_event(KeyEvent& event) override;
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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LibGUI: Make descendants of AbstractView define their own select_all() (#1201) AbstractView does not know which column it's displaying which makes it impossible to implement the select_all functionality up there. Now descendants override the pure virtual select_all method and implement it themselves.
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virtual void select_all() override;
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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struct Column {
LibGUI: Put all classes in the GUI namespace and remove the leading G This took me a moment. Welcome to the new world of GUI::Widget! :^)
2020-02-02 15:07:41 +01:00
ModelIndex parent_index;
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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int width;
// TODO: per-column vertical scroll?
};
Vector<Column> m_columns;
LibGUI: Fix missing initializer for GColumnsView::m_model_column
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int m_model_column { 0 };
LibGUI: Add GColumnsView This is a shiny new widget that can display a tree using Miller columns ^:) In many cases, the columns view can be used as an alternative to tree view, but it has its own set of limitations: * It can only display one model column (so it cannot replace a table) * It takes up a lot of horizontal space, so it's only suitable if the item text is fairly short * It can only display one subtree at a time But as long as a usecase doesn't suffer from these limitations, a columns view can be *much* more intuitive than a tree view.
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};
LibGUI: Put all classes in the GUI namespace and remove the leading G This took me a moment. Welcome to the new world of GUI::Widget! :^)
2020-02-02 15:07:41 +01:00
}
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