raylib-src/examples/core/core_drop_files.c

/*******************************************************************************************
*
*   raylib [core] example - Windows drop files
*
*   NOTE: This example only works on platforms that support drag & drop (Windows, Linux, OSX, Html5?)
*
*   Example originally created with raylib 1.3, last time updated with raylib 4.2
*
*   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
*   BSD-like license that allows static linking with closed source software
*
*   Copyright (c) 2015-2023 Ramon Santamaria (@raysan5)
*
********************************************************************************************/

#include "raylib.h"

//------------------------------------------------------------------------------------
// Program main entry point
//------------------------------------------------------------------------------------
int main(void)
{
    // Initialization
    //--------------------------------------------------------------------------------------
    const int screenWidth = 800;
    const int screenHeight = 450;

    InitWindow(screenWidth, screenHeight, "raylib [core] example - drop files");

    FilePathList droppedFiles = { 0 };

    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
    //--------------------------------------------------------------------------------------

    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        if (IsFileDropped())
        {
            // Is some files have been previously loaded, unload them
            if (droppedFiles.count > 0) UnloadDroppedFiles(droppedFiles);
            
            // Load new dropped files
            droppedFiles = LoadDroppedFiles();
        }
        //----------------------------------------------------------------------------------

        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();

            ClearBackground(RAYWHITE);

            if (droppedFiles.count == 0) DrawText("Drop your files to this window!", 100, 40, 20, DARKGRAY);
            else
            {
                DrawText("Dropped files:", 100, 40, 20, DARKGRAY);

                for (int i = 0; i < droppedFiles.count; i++)
                {
                    if (i%2 == 0) DrawRectangle(0, 85 + 40*i, screenWidth, 40, Fade(LIGHTGRAY, 0.5f));
                    else DrawRectangle(0, 85 + 40*i, screenWidth, 40, Fade(LIGHTGRAY, 0.3f));

                    DrawText(droppedFiles.paths[i], 120, 100 + 40*i, 10, GRAY);
                }

                DrawText("Drop new files...", 100, 110 + 40*droppedFiles.count, 20, DARKGRAY);
            }

        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    UnloadDroppedFiles(droppedFiles); // Unload files memory

    CloseWindow();          // Close window and OpenGL context
    //--------------------------------------------------------------------------------------

    return 0;
}