initial commit

NewDialogs/Listbox.cpp

@@ -0,0 +1,91 @@
+#include <string>
+
+using namespace std;
+
+#include <SDL3/SDL.h>
+#include <SDL3_ttf/SDL_ttf.h>
+
+#include "../SDLHelpers.h"
+
+#include "Listbox.h"
+
+Listbox::Listbox(vector<string> list, int item_size, SDL_Rect pos) : Item(pos) {
+    this->list = list;
+    this->item_size = item_size;
+    selected = 1;
+    setSurface(SDL_CreateSurface(getPos()->w, getPos()->h, SDL_GetPixelFormatForMasks(32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000)));
+    drawListbox();
+}
+
+Listbox::~Listbox() {
+    SDL_DestroySurface(getSurface());
+}
+
+void Listbox::drawListbox() {
+    SDL_Surface *surface = getSurface();
+    int w = getPos()->w;
+    int h = getPos()->h;
+
+    Uint32 *p = (Uint32 *) surface->pixels;
+    SDL_Color color;
+    for (int y = 0; y < h; y++) {
+        for (int x = 0; x < w; x++) {
+            if (y == 0 || y == h-1 || x == 0 || x == w-1) {
+                color.r = 0;
+                color.g = 0;
+                color.b = 0;
+            } else {
+                color.r = 255;
+                color.g = 255;
+                color.b = 255;
+            }
+            *p = SDL_MapRGB(SDL_GetPixelFormatDetails(surface->format), NULL, color.r, color.g, color.b);
+            p++;
+        }
+    }
+
+    vector<string> fonts;
+    fonts.push_back("ariblk.ttf");
+    fonts.push_back("FreeSans.ttf");
+    fonts.push_back("DejaVuSans.ttf");
+    TTF_Font *font = openFont(fonts, 14);
+    if (!font) {
+        cout << "TTF_OpenFont is broken!" << endl;
+    } else {
+        for (int x = 0; x < list.size(); x++) {
+            SDL_Color text_color = {0, 0, 0};
+            SDL_Surface *text_surface;
+            if(!(text_surface = TTF_RenderText_Blended(font, list[x].c_str(), list[x].length(), text_color))) {
+                cout << SDL_GetError() << endl;
+            }
+            SDL_Rect pos;
+            pos.x = 8;
+            pos.y = x * item_size;
+            SDL_BlitSurface(text_surface, NULL, surface, &pos);
+            SDL_DestroySurface(text_surface);
+        }
+        TTF_CloseFont(font);
+    }
+}
+
+bool Listbox::onMousePress(int x, int y) {
+    bool is_in_x = x > getPos()->x && x < getPos()->x + getPos()->w;
+    bool is_in_y = y > getPos()->y && y < getPos()->y + getPos()->h;
+    if (is_in_x && is_in_y) {
+        selected = (y - getPos()->y) / item_size;
+        if (value_changed_func) {
+            (*value_changed_func)(p);
+        }
+        return true;
+    }
+    return false;
+}
+
+void Listbox::setValueChangedFunc(void (*value_changed_func)(void *p), void *p) {
+    this->value_changed_func = value_changed_func;
+    this->p = p;
+}
+
+int Listbox::getSelected() {
+    return selected;
+}