forked from mirrors/0ad
elexis
8190293f8b
Remove workaround in 3d07327837 / D2136, the pointer from IGUIObject to
IGUITextOwner that avoided the dynamic_cast.
Have the GUIObject implementing class take responsibility of calling the
virtual methods in the base classes.
Leaves the code in a clean state that can serve as an example for new
GUI object classes, such as D1346, refs #4683.
Differential Revision: https://code.wildfiregames.com/D2325
Comments By: Vladislav on IRC 2019-07-30, 2019-08-22, 2019-09-20-23
Tested on: clang 8.0.1, Jenkins
This was SVN commit r23020.
124 lines
3.0 KiB
C++
124 lines
3.0 KiB
C++
/* Copyright (C) 2019 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. 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 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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GUI Object Base - Text Owner
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--Overview--
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Interface class that enhance the IGUIObject with
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cached CGUIStrings. This class is not at all needed,
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and many controls that will use CGUIStrings might
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not use this, but does help for regular usage such
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as a text-box, a button, a radio button etc.
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*/
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#ifndef INCLUDED_IGUITEXTOWNER
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#define INCLUDED_IGUITEXTOWNER
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#include "gui/IGUIObject.h"
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#include <vector>
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struct CGUIColor;
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class CGUIText;
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class CGUIString;
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/**
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* Framework for handling Output text.
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*/
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class IGUITextOwner
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{
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NONCOPYABLE(IGUITextOwner);
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public:
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IGUITextOwner(IGUIObject& pObject);
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virtual ~IGUITextOwner();
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/**
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* Adds a text object.
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*/
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CGUIText& AddText();
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/**
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* Adds a text generated by the given arguments.
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*/
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CGUIText& AddText(const CGUIString& Text, const CStrW& Font, const float& Width, const float& BufferZone);
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/**
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* @see IGUIObject#HandleMessage()
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*/
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virtual void HandleMessage(SGUIMessage& Message);
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/**
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* @see IGUIObject#UpdateCachedSize()
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*/
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virtual void UpdateCachedSize();
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/**
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* Draws the Text.
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*
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* @param index Index value of text. Mostly this will be 0
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* @param color
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* @param pos Position
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* @param z Z value
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* @param clipping Clipping rectangle, don't even add a parameter
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* to get no clipping.
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*/
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virtual void DrawText(size_t index, const CGUIColor& color, const CPos& pos, float z, const CRect& clipping = CRect());
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/**
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* Test if mouse position is over an icon
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*/
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virtual bool MouseOverIcon();
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protected:
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/**
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* Setup texts. Functions that sets up all texts when changes have been made.
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*/
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virtual void SetupText() = 0;
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/**
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* Regenerate the text in case it is invalid. Should only be called when inevitable.
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*/
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virtual void UpdateText();
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/**
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* Whether the cached text is currently valid (if not then SetupText will be called by Draw)
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*/
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bool m_GeneratedTextsValid;
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/**
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* Texts that are generated and ready to be rendered.
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*/
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std::vector<CGUIText> m_GeneratedTexts;
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/**
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* Calculate the position for the text, based on the alignment.
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*/
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void CalculateTextPosition(CRect& ObjSize, CPos& TextPos, CGUIText& Text);
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private:
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/**
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* Reference to the IGUIObject.
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* Private, because we don't want to inherit it in multiple classes.
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*/
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IGUIObject& m_pObject;
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};
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#endif // INCLUDED_IGUITEXTOWNER
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