diff options
Diffstat (limited to 'client/SDL/dialogs/sdl_selectlist.cpp')
| -rw-r--r-- | client/SDL/dialogs/sdl_selectlist.cpp | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/client/SDL/dialogs/sdl_selectlist.cpp b/client/SDL/dialogs/sdl_selectlist.cpp new file mode 100644 index 0000000..20437cc --- /dev/null +++ b/client/SDL/dialogs/sdl_selectlist.cpp @@ -0,0 +1,208 @@ +#include "sdl_selectlist.hpp" + +static const Uint32 vpadding = 5; + +SdlSelectList::SdlSelectList(const std::string& title, const std::vector<std::string>& labels) + : _window(nullptr), _renderer(nullptr) +{ + const size_t widget_height = 50; + const size_t widget_width = 600; + + const size_t total_height = labels.size() * (widget_height + vpadding) + vpadding; + _window = SDL_CreateWindow(title.c_str(), SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, + widget_width, total_height + widget_height, + SDL_WINDOW_ALLOW_HIGHDPI | SDL_WINDOW_MOUSE_FOCUS | + SDL_WINDOW_INPUT_FOCUS); + if (_window == nullptr) + { + widget_log_error(-1, "SDL_CreateWindow"); + } + else + { + _renderer = SDL_CreateRenderer(_window, -1, SDL_RENDERER_ACCELERATED); + if (_renderer == nullptr) + { + widget_log_error(-1, "SDL_CreateRenderer"); + } + else + { + SDL_Rect rect = { 0, 0, widget_width, widget_height }; + for (auto& label : labels) + { + _list.emplace_back(_renderer, label, rect); + rect.y += widget_height + vpadding; + } + + const std::vector<int> buttonids = { INPUT_BUTTON_ACCEPT, INPUT_BUTTON_CANCEL }; + const std::vector<std::string> buttonlabels = { "accept", "cancel" }; + _buttons.populate( + _renderer, buttonlabels, buttonids, widget_width, static_cast<Sint32>(total_height), + static_cast<Sint32>(widget_width / 2), static_cast<Sint32>(widget_height)); + _buttons.set_highlight(0); + } + } +} + +SdlSelectList::~SdlSelectList() +{ + _list.clear(); + _buttons.clear(); + SDL_DestroyRenderer(_renderer); + SDL_DestroyWindow(_window); +} + +int SdlSelectList::run() +{ + int res = -2; + ssize_t CurrentActiveTextInput = 0; + bool running = true; + + if (!_window || !_renderer) + return -2; + try + { + while (running) + { + if (!clear_window(_renderer)) + throw; + + if (!update_text()) + throw; + + if (!_buttons.update(_renderer)) + throw; + + SDL_Event event = { 0 }; + SDL_WaitEvent(&event); + switch (event.type) + { + case SDL_KEYDOWN: + switch (event.key.keysym.sym) + { + case SDLK_UP: + case SDLK_BACKSPACE: + if (CurrentActiveTextInput > 0) + CurrentActiveTextInput--; + else + CurrentActiveTextInput = _list.size() - 1; + break; + case SDLK_DOWN: + case SDLK_TAB: + if (CurrentActiveTextInput < 0) + CurrentActiveTextInput = 0; + else + CurrentActiveTextInput++; + CurrentActiveTextInput = CurrentActiveTextInput % _list.size(); + break; + case SDLK_RETURN: + case SDLK_RETURN2: + case SDLK_KP_ENTER: + running = false; + res = CurrentActiveTextInput; + break; + case SDLK_ESCAPE: + running = false; + res = INPUT_BUTTON_CANCEL; + break; + default: + break; + } + break; + case SDL_MOUSEMOTION: + { + ssize_t TextInputIndex = get_index(event.button); + reset_mouseover(); + if (TextInputIndex >= 0) + { + auto& cur = _list[TextInputIndex]; + if (!cur.set_mouseover(_renderer, true)) + throw; + } + + _buttons.set_mouseover(event.button.x, event.button.y); + } + break; + case SDL_MOUSEBUTTONDOWN: + { + auto button = _buttons.get_selected(event.button); + if (button) + { + running = false; + if (button->id() == INPUT_BUTTON_CANCEL) + res = INPUT_BUTTON_CANCEL; + else + res = CurrentActiveTextInput; + } + else + { + CurrentActiveTextInput = get_index(event.button); + } + } + break; + case SDL_QUIT: + res = INPUT_BUTTON_CANCEL; + running = false; + break; + default: + break; + } + + reset_highlight(); + if (CurrentActiveTextInput >= 0) + { + auto& cur = _list[CurrentActiveTextInput]; + if (!cur.set_highlight(_renderer, true)) + throw; + } + + SDL_RenderPresent(_renderer); + } + } + catch (...) + { + return -1; + } + return res; +} + +ssize_t SdlSelectList::get_index(const SDL_MouseButtonEvent& button) +{ + const Sint32 x = button.x; + const Sint32 y = button.y; + for (size_t i = 0; i < _list.size(); i++) + { + auto& cur = _list[i]; + auto r = cur.rect(); + + if ((x >= r.x) && (x <= r.x + r.w) && (y >= r.y) && (y <= r.y + r.h)) + return i; + } + return -1; +} + +bool SdlSelectList::update_text() +{ + for (auto& cur : _list) + { + if (!cur.update_text(_renderer)) + return false; + } + + return true; +} + +void SdlSelectList::reset_mouseover() +{ + for (auto& cur : _list) + { + cur.set_mouseover(_renderer, false); + } +} + +void SdlSelectList::reset_highlight() +{ + for (auto& cur : _list) + { + cur.set_highlight(_renderer, false); + } +} |