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https://github.com/mudita/MuditaOS.git
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4c72152c6f
Current sms length is bound by 7*67 characters. This PR enforce that limit on ApplicationMessages level. Additionally PR solve: - corner case problem with invalid cursor position in TextBackup - EGD-4408 fix of label on desktop menuWindow
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
// Copyright (c) 2017-2020, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#pragma once
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#include "Common.hpp"
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#include "Rect.hpp"
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#include "TextConstants.hpp"
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#include "TextDocument.hpp"
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#include <memory>
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namespace gui
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{
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class Text;
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class TextDocument;
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/// TextCursor - element joining Visible cursor element on screen ( via Rect )
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/// movement on TextDocument ( via BlockCursor )
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/// and position in gui::Text::Lines shown on screen
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class TextCursor : public Rect, public BlockCursor
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{
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protected:
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Text *text = nullptr;
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CursorStartPosition cursorStartPosition = CursorStartPosition::DocumentEnd;
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unsigned int onScreenPosition = 0;
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public:
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static const unsigned int defaultWidth;
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enum class Move
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{
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Start, /// we are text `0`
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End, /// we hit end of document
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Up, /// we moved up a line
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Down, /// we moved down a line
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Left, /// we moved left inline
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Right, /// we moved right inline
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Error, /// error - now not implemented
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};
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explicit TextCursor(gui::Text *parent, unsigned int pos = text::npos, unsigned int block = text::npos);
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TextCursor() = delete;
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/// Up Down - end of line movement like in vi
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/// - moves on TextBlock ( TextDocument really... ) cursor to know where we are
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/// - moves gui::Text relative to TextDocument `pos_on_screen` value
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/// - informs that we changed line when needed - TODO think about it better... ( and if it's needed...?)
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/// - with_update - updates position in parent ( if false not - means we handled it already with i.e. addChar or
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/// removeChar)
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virtual Move moveCursor(NavigationDirection direction);
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virtual Move moveCursor(NavigationDirection direction, unsigned int n);
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// TODO note to self - here should be too UTF8 char handling, not in document...
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// cursor can pass processing char directly to TextBlock we are interested in...
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// so this should be in BlockCursor in reality
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auto getSelectedLine() -> std::tuple<const TextLine *, unsigned int, unsigned int>;
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void updateView();
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void addChar(uint32_t utf_val) override;
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TextCursor &operator<<(const UTF8 &);
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TextCursor &operator<<(const TextBlock &);
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bool removeChar() override;
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auto setCursorStartPosition(CursorStartPosition val) -> void;
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[[nodiscard]] auto getOnScreenPosition() const
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{
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return onScreenPosition;
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}
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[[nodiscard]] auto getAbsolutePosition() const -> unsigned int;
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};
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} // namespace gui
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const char *c_str(enum gui::TextCursor::Move);
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