95 lines
1.9 KiB
C++
95 lines
1.9 KiB
C++
#pragma once
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#include <SDL2/SDL.h>
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#include <SDL2/SDL_ttf.h>
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#include <optional>
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#include <string>
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#include <vector>
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enum class Alignment { LEFT, RIGHT, CENTER };
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struct PositionInfo {
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PositionInfo();
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int x;
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int y;
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Alignment align;
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};
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class Widget {
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public:
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Widget(SDL_Renderer* renderer);
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virtual ~Widget();
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virtual void set_width(int width, bool preserve_aspect_ratio = true);
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virtual void set_height(int height, bool preserve_aspect_ratio = true);
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virtual void set_position(int x, int y);
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virtual void set_alignment(Alignment align);
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int get_width();
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int get_height();
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const PositionInfo& get_position();
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virtual void draw() = 0;
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protected:
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void recalculate_pos();
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SDL_Renderer* renderer;
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SDL_Rect rect;
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PositionInfo pos;
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};
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class TextureWidget : public Widget {
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public:
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TextureWidget(SDL_Renderer* renderer, std::optional<SDL_Texture*> texture);
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~TextureWidget();
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virtual void draw() override;
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void update_texture(SDL_Texture* new_texture);
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private:
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void update_dimensions_from_texture(SDL_Texture* texture);
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std::optional<SDL_Texture*> texture;
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};
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class ImageWidget : public TextureWidget {
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public:
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ImageWidget(SDL_Renderer* renderer, const std::string& path);
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};
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class TextWidget : public TextureWidget {
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public:
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TextWidget(SDL_Renderer* renderer, TTF_Font* font,
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const std::string& initial_text = "");
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~TextWidget();
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void update_text(const std::string& new_text);
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protected:
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TTF_Font* font;
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std::string text;
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SDL_Texture* generate_text(const std::string& text);
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};
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class ListWidget : public Widget {
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public:
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ListWidget(SDL_Renderer* renderer, int element_height,
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Alignment element_alignment);
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virtual ~ListWidget();
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void add_element(Widget* element);
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virtual void draw() override;
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protected:
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int element_height;
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Alignment element_alignment;
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std::vector<Widget*> elements;
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void place_element(Widget* element, int index);
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}; |