Video menu.
This commit is contained in:
parent
240793027f
commit
90bf26c018
38
src/gui.cpp
38
src/gui.cpp
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@ -8,6 +8,11 @@
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namespace GUI {
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// Screen size:
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const unsigned width = 256;
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const unsigned height = 240;
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const unsigned fontSz = 16;
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// SDL structures:
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SDL_Window* window;
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SDL_Renderer* renderer;
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@ -19,10 +24,27 @@ u8 const* keys;
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Menu* menu;
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Menu mainMenu;
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Menu settingsMenu;
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Menu videoMenu;
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FileMenu* fileMenu;
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bool pause = true;
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/* Change the size of the window */
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void set_size(int mul)
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{
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// Generate a new font:
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TTF_CloseFont(font);
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font = TTF_OpenFont("res/font.ttf", fontSz * mul);
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// Set the new size:
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SDL_SetWindowSize(window, 256 * mul, 240 * mul);
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// Regenerate the menu entries:
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mainMenu.regen();
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settingsMenu.regen();
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videoMenu.regen();
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}
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/* Initialize GUI */
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void init()
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{
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@ -42,7 +64,7 @@ void init()
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SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING,
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width, height);
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font = TTF_OpenFont("res/font.ttf", fontPt);
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font = TTF_OpenFont("res/font.ttf", fontSz);
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keys = SDL_GetKeyboardState(0);
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signal(SIGINT, SIG_DFL); // CTRL+C kills the application.
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@ -52,8 +74,12 @@ void init()
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mainMenu.add ("Settings", []{ menu = settingsMenu.reset(); });
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mainMenu.add ("Exit", []{ exit(0); });
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settingsMenu.add("<", []{ menu = mainMenu.reset(); });
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settingsMenu.add("Video", []{ menu = videoMenu.reset(); });
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settingsMenu.add("Controls");
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settingsMenu.add("Video");
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videoMenu.add ("<", []{ menu = settingsMenu.reset(); });
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videoMenu.add ("Size 1x", []{ set_size(1); });
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videoMenu.add ("Size 2x", []{ set_size(2); });
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videoMenu.add ("Size 3x", []{ set_size(3); });
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fileMenu = new FileMenu;
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menu = &mainMenu;
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}
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@ -62,11 +88,15 @@ void init()
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void render_texture(SDL_Texture* texture, int x, int y)
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{
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int w, h;
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int winW, winH;
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SDL_Rect dest;
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SDL_GetWindowSize(window, &winW, &winH);
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SDL_QueryTexture(texture, NULL, NULL, &dest.w, &dest.h);
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dest.x = (x < 0) ? ((width / 2) - (dest.w / 2)) : x;
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dest.y = (y < 0) ? ((height / 2) - (dest.h / 2)) : y;
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dest.x = (x < 0) ? ((winW / 2) - (dest.w / 2)) : x;
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dest.y = (y < 0) ? ((winH / 2) - (dest.h / 2)) : y;
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SDL_RenderCopy(renderer, texture, NULL, &dest);
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}
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@ -6,11 +6,6 @@
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namespace GUI {
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// Screen size:
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const unsigned width = 256;
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const unsigned height = 240;
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const unsigned fontPt = 16; // Font size.
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void init();
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void toggle_pause();
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void run();
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43
src/menu.cpp
43
src/menu.cpp
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@ -9,23 +9,33 @@ namespace GUI {
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using namespace std;
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MenuEntry::MenuEntry(string label, function<void()> callback)
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MenuEntry::MenuEntry(string label, function<void()> callback, int x)
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{
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this->label = label;
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this->callback = callback;
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this->x = x;
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unselected = gen_text(label, white);
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selected = gen_text(label, red);
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}
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MenuEntry::~MenuEntry()
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{
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SDL_DestroyTexture(selected);
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SDL_DestroyTexture(unselected);
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SDL_DestroyTexture(selected);
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}
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void Menu::add(string label, function<void()> callback)
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void MenuEntry::regen()
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{
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entries.push_back(new MenuEntry(label, callback));
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SDL_DestroyTexture(unselected);
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SDL_DestroyTexture(selected);
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unselected = gen_text(label, white);
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selected = gen_text(label, red);
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}
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void Menu::add(string label, function<void()> callback, int x)
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{
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entries.push_back(new MenuEntry(label, callback, x));
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}
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void Menu::update(u8 const* keys)
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@ -40,9 +50,17 @@ void Menu::update(u8 const* keys)
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void Menu::render()
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{
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int h; SDL_QueryTexture(entries[0]->selected, NULL, NULL, NULL, &h);
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for (int i = 0; i < entries.size(); i++)
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render_texture(entries[i]->unselected, -1, i * fontPt);
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render_texture(entries[cursor]->selected, -1, cursor * fontPt);
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render_texture(entries[i]->unselected, entries[i]->x, i * h);
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render_texture(entries[cursor]->selected, entries[cursor]->x, cursor * h);
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}
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void Menu::regen()
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{
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for (auto entry : entries)
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entry->regen();
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}
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Menu* Menu::reset()
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@ -69,20 +87,13 @@ void FileMenu::change_dir(string dir)
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if (name[0] == '.' and name != "..") continue;
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if (dirp->d_type == DT_DIR)
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add(name + "/", [=]{ change_dir(path); });
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else
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add(name, [=]{ Cartridge::load(path.c_str()); toggle_pause(); });
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add(name + "/", [=]{ change_dir(path); }, 10);
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else if (name.size() > 4 and name.substr(name.size() - 4) == ".nes")
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add(name, [=]{ Cartridge::load(path.c_str()); toggle_pause(); }, 10);
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}
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closedir(dp);
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}
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void FileMenu::render()
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{
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for (int i = 0; i < entries.size(); i++)
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render_texture(entries[i]->unselected, 10, i * fontPt);
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render_texture(entries[cursor]->selected, 10, cursor * fontPt);
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}
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Menu* FileMenu::reset()
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{
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change_dir(getwd(NULL));
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10
src/menu.hpp
10
src/menu.hpp
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@ -12,14 +12,16 @@ struct MenuEntry
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SDL_Color white = { 255, 255, 255 };
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SDL_Color red = { 255, 0, 0 };
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int x;
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std::string label;
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std::function<void()> callback;
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SDL_Texture* selected;
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SDL_Texture* unselected;
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MenuEntry(std::string label, std::function<void()> callback);
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MenuEntry(std::string label, std::function<void()> callback, int x);
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~MenuEntry();
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void regen();
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};
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class Menu
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@ -29,9 +31,10 @@ class Menu
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int cursor = 0;
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public:
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void add(std::string label, std::function<void()> callback = []{});
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void add(std::string label, std::function<void()> callback = []{}, int x = -1);
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void update(u8 const* keys);
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virtual void render();
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void render();
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void regen();
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virtual Menu* reset();
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};
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void change_dir(std::string dir);
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public:
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void render();
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Menu* reset();
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FileMenu();
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};
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