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HackStudio: Add DiffViewer widget

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This widget presents a diff in a nice graphical way, side by side.
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Itamar 2020-09-12 20:43:41 +03:00 • committed by Andreas Kling
parent 11440fa78f
commit 8306a84967
2 changed files with 333 additions and 0 deletions
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80
DevTools/HackStudio/Git/DiffViewer.h Normal file
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/*
* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
* 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 <AK/String.h>
#include <AK/Vector.h>
#include <LibDiff/Hunks.h>
#include <LibGUI/ScrollableWidget.h>
namespace HackStudio {
class DiffViewer final : public GUI::ScrollableWidget {
C_OBJECT(DiffViewer)
public:
virtual ~DiffViewer() override;
void set_content(const String& original, const String& diff);
private:
DiffViewer(const String& original, const String& diff);
DiffViewer();
void setup_properties();
virtual void paint_event(GUI::PaintEvent&) override;
virtual void resize_event(GUI::ResizeEvent&) override;
void update_content_size();
enum class LinePosition {
Left,
Right,
Both,
};
enum class LineType {
Normal,
Diff,
Missing,
};
void draw_line(GUI::Painter&, const String& line, size_t y_offset, LinePosition, LineType);
static Vector<String> split_to_lines(const String& text);
static Gfx::Color red_background();
static Gfx::Color green_background();
static Gfx::Color gray_background();
size_t line_height() const;
Gfx::IntRect separator_rect() const;
Vector<String> m_original_lines;
Vector<Diff::Hunk> m_hunks;
};
}