92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
#include <string>
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using namespace std;
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#include <SDL3/SDL.h>
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#include <SDL3_ttf/SDL_ttf.h>
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#include "../SDLHelpers.h"
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#include "Listbox.h"
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Listbox::Listbox(vector<string> list, int item_size, SDL_Rect pos) : Item(pos) {
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this->list = list;
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this->item_size = item_size;
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selected = 1;
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setSurface(SDL_CreateSurface(getPos()->w, getPos()->h, SDL_GetPixelFormatForMasks(32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000)));
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drawListbox();
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}
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Listbox::~Listbox() {
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SDL_DestroySurface(getSurface());
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}
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void Listbox::drawListbox() {
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SDL_Surface *surface = getSurface();
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int w = getPos()->w;
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int h = getPos()->h;
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Uint32 *p = (Uint32 *) surface->pixels;
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SDL_Color color;
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for (int y = 0; y < h; y++) {
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for (int x = 0; x < w; x++) {
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if (y == 0 || y == h-1 || x == 0 || x == w-1) {
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color.r = 0;
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color.g = 0;
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color.b = 0;
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} else {
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color.r = 255;
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color.g = 255;
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color.b = 255;
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}
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*p = SDL_MapRGB(SDL_GetPixelFormatDetails(surface->format), NULL, color.r, color.g, color.b);
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p++;
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}
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}
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vector<string> fonts;
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fonts.push_back("ariblk.ttf");
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fonts.push_back("FreeSans.ttf");
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fonts.push_back("DejaVuSans.ttf");
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TTF_Font *font = openFont(fonts, 14);
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if (!font) {
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cout << "TTF_OpenFont is broken!" << endl;
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} else {
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for (int x = 0; x < list.size(); x++) {
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SDL_Color text_color = {0, 0, 0};
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SDL_Surface *text_surface;
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if(!(text_surface = TTF_RenderText_Blended(font, list[x].c_str(), list[x].length(), text_color))) {
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cout << SDL_GetError() << endl;
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}
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SDL_Rect pos;
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pos.x = 8;
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pos.y = x * item_size;
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SDL_BlitSurface(text_surface, NULL, surface, &pos);
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SDL_DestroySurface(text_surface);
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}
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TTF_CloseFont(font);
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}
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}
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bool Listbox::onMousePress(int x, int y) {
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bool is_in_x = x > getPos()->x && x < getPos()->x + getPos()->w;
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bool is_in_y = y > getPos()->y && y < getPos()->y + getPos()->h;
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if (is_in_x && is_in_y) {
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selected = (y - getPos()->y) / item_size;
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if (value_changed_func) {
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(*value_changed_func)(p);
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}
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return true;
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}
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return false;
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}
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void Listbox::setValueChangedFunc(void (*value_changed_func)(void *p), void *p) {
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this->value_changed_func = value_changed_func;
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this->p = p;
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}
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int Listbox::getSelected() {
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return selected;
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}
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