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127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef GUI_WIDGETS_EDITABLE_H
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#define GUI_WIDGETS_EDITABLE_H
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#include "common/keyboard.h"
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#include "common/str.h"
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#include "gui/widget.h"
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#include "gui/ThemeEngine.h"
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#include "gui/object.h"
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namespace Common {
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struct Rect;
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}
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namespace GUI {
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/**
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* Base class for widgets which need to edit text, like ListWidget and
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* EditTextWidget.
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*/
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class EditableWidget : public Widget, public CommandSender {
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protected:
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Common::U32String _editString;
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uint32 _cmd;
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bool _caretVisible;
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uint32 _caretTime;
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int _caretPos;
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bool _caretInverse;
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int _editScrollOffset;
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int _selCaretPos;
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int _selOffset;
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bool _shiftPressed;
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bool _isDragging;
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bool _disableSelection;
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Graphics::TextAlign _align;
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Graphics::TextAlign _drawAlign;
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ThemeEngine::FontStyle _font;
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ThemeEngine::TextInversionState _inversion;
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public:
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EditableWidget(GuiObject *boss, int x, int y, int w, int h, bool scale, const Common::U32String &tooltip = Common::U32String(), uint32 cmd = 0);
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EditableWidget(GuiObject *boss, int x, int y, int w, int h, const Common::U32String &tooltip = Common::U32String(), uint32 cmd = 0);
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EditableWidget(GuiObject *boss, const Common::String &name, const Common::U32String &tooltip = Common::U32String(), uint32 cmd = 0);
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~EditableWidget() override;
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void init();
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virtual void setEditString(const Common::U32String &str);
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virtual const Common::U32String &getEditString() const { return _editString; }
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void handleTickle() override;
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void handleMouseDown(int x, int y, int button, int clickCount) override;
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void handleMouseUp(int x, int y, int button, int clickCount) override;
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void handleMouseMoved(int x, int y, int button) override;
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bool handleKeyDown(Common::KeyState state) override;
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bool handleKeyUp(Common::KeyState state) override;
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void handleOtherEvent(const Common::Event& evt) override;
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void reflowLayout() override;
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void moveCaretToStart(bool shiftPressed);
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void moveCaretToEnd(bool shiftPressed);
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bool setCaretPos(int newPos);
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void setSelectionOffset(int newOffset);
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protected:
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void drawWidget() override;
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virtual void startEditMode() = 0;
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virtual void endEditMode() = 0;
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virtual void abortEditMode() = 0;
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/**
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* The area where text input is being made. This should exactly match the
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* rect with which the actual edit string is drawn otherwise nasty
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* graphics glitches when redrawing the caret can occur.
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*/
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virtual Common::Rect getEditRect() const = 0;
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virtual int getCaretOffset() const;
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virtual int getSelectionCarretOffset() const;
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void drawCaret(bool erase, bool useRelativeCoordinates = false);
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bool adjustOffset();
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void makeCaretVisible();
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void defaultKeyDownHandler(Common::KeyState &state, bool &dirty, bool &forcecaret, bool &handled);
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void setFontStyle(ThemeEngine::FontStyle font) { _font = font; }
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virtual bool isCharAllowed(Common::u32char_type_t c) const;
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bool tryInsertChar(Common::u32char_type_t c, int pos);
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int caretVisualPos(int logicalPos) const;
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int caretLogicalPos() const;
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void clearSelection();
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};
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} // End of namespace GUI
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#endif
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