0569447470
- selection
- some state moved out of editor.
- Editor::getPosition() translates x,y mouse position into text
position
- General Editor::move() function for moving cursor
- Editor::insert() (does not yet handle newlines)
- Editor::remove() (does not yet delete across lines)
- new StringSlice class to replace SkString.
Change-Id: I1ca03247a745bc045e41619cd5a839c495dc405b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/211884
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#ifndef stringslice_DEFINED
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#define stringslice_DEFINED
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#include <memory>
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#include <cstddef>
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namespace editor {
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// A lightweight modifiable string class.
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class StringSlice {
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public:
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StringSlice() = default;
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StringSlice(const char* s, std::size_t l) { this->insert(0, s, l); }
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~StringSlice() = default;
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StringSlice(StringSlice&&);
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StringSlice& operator=(StringSlice&&);
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// access:
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// Does not have a c_str method; is *not* NUL-terminated.
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const char* begin() const { return fPtr.get(); }
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const char* end() const { return fPtr ? fPtr.get() + fLength : nullptr; }
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std::size_t size() const { return fLength; }
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// mutation:
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void insert(std::size_t offset, const char* text, std::size_t length);
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void remove(std::size_t offset, std::size_t length);
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void reserve(std::size_t);
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void shrink();
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private:
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struct FreeWrapper { void operator()(void*); };
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std::unique_ptr<char, FreeWrapper> fPtr;
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std::size_t fLength = 0;
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std::size_t fCapacity = 0;
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StringSlice(const StringSlice&) = delete;
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StringSlice& operator=(const StringSlice&) = delete;
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};
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} // namespace editor;
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#endif // stringslice_DEFINED
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