88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
/* Copyright: (c) Kayne Ruse 2013-2015
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#pragma once
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#include "text_line.hpp"
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#include "SDL2/SDL.h"
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#include "SDL2/SDL_ttf.h"
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#include <string>
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#include <list>
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/* DOCS: TextBox is a templated class to allow additional data, read more
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* As long as the class given as an argument meets these requirements, this
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* should work:
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*
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* Constructor(SDL_Renderer*, TTF_Font*, std::string, SDL_Color)
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* DrawTo(SDL_Renderer*, int posX, int posY)
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*
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* The class should also clean up after itself.
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*/
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//template class definition
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template<typename Line = TextLine>
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class TextBox {
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public:
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TextBox() = default;
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~TextBox() = default;
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void DrawTo(SDL_Renderer*, int posX, int posY, int pointSize);
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void PushLine(SDL_Renderer*, TTF_Font*, std::string, SDL_Color color);
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void PopLine(int num = 1);
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void ClearLines();
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private:
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std::list<Line> lineList;
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};
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//method definitions
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template<typename Line>
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void TextBox<Line>::DrawTo(SDL_Renderer* renderer, int posX, int posY, int pointSize) {
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//NOTE: pointSize should match the font's size, but may be negative to give a dialog effect
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for (typename std::list<Line>::iterator it = lineList.begin(); it != lineList.end(); it++) {
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it->DrawTo(renderer, posX, posY);
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posY += pointSize;
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}
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}
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template<typename Line>
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void TextBox<Line>::PushLine(SDL_Renderer* renderer, TTF_Font* font, std::string str, SDL_Color color) {
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lineList.emplace_front(renderer, font, str, color);
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}
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template<typename Line>
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void TextBox<Line>::PopLine(int num) {
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//prevent underflow
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num < lineList.size() ? num : lineList.size();
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for (int i = 0; i < num; ++i) {
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lineList.pop_back();
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}
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}
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template<typename Line>
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void TextBox<Line>::ClearLines() {
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lineList.clear();
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}
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