add dropped files example (#260)

* add dropped files example * reformat build.zig
2025-07-23 16:24:56 +02:00 · 2025-07-23 16:24:56 +02:00 · e8167c2e56
commit e8167c2e56
parent 14f49a38dd
2 changed files with 108 additions and 1 deletions
--- a/examples/core/drop_files.zig
+++ b/examples/core/drop_files.zig
@ -0,0 +1,102 @@
+// raylib-zig (c) Leonardo Kreienbuehl 2025
+
+const rl = @import("raylib");
+const std = @import("std");
+
+const MAX_FILEPATH_RECORDED = 4096;
+const MAX_FILEPATH_SIZE = 2048;
+
+pub fn main() anyerror!void {
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const screenWidth = 800;
+    const screenHeight = 450;
+
+    rl.initWindow(screenWidth, screenHeight, "raylib-zig [core] example - drop files");
+    defer rl.closeWindow(); // Close window and OpenGL context
+
+    var filePathCounter: usize = 0;
+    var filePaths: [MAX_FILEPATH_RECORDED][MAX_FILEPATH_SIZE]u8 = std.mem.zeroes([MAX_FILEPATH_RECORDED][MAX_FILEPATH_SIZE]u8);
+
+    rl.setTargetFPS(60);
+
+    // Main game loop
+    while (!rl.windowShouldClose()) {
+        // Update
+        //----------------------------------------------------------------------------------
+        if (rl.isFileDropped()) {
+            const droppedFiles: rl.FilePathList = rl.loadDroppedFiles();
+
+            for (0..droppedFiles.count) |i| {
+                const offset: usize = @as(usize, @intCast(filePathCounter));
+                const droppedFilePathLength: usize = std.mem.len(droppedFiles.paths[i]);
+
+                if (filePathCounter < (MAX_FILEPATH_RECORDED - 1)) {
+                    _ = rl.textCopy(
+                        @ptrCast(@constCast(&filePaths[offset])),
+                        droppedFiles.paths[i][0..droppedFilePathLength :0],
+                    );
+                    filePathCounter += 1;
+                }
+            }
+
+            rl.unloadDroppedFiles(droppedFiles);
+        }
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        rl.beginDrawing();
+        defer rl.endDrawing();
+
+        rl.clearBackground(rl.Color.ray_white);
+
+        if (filePathCounter == 0) {
+            rl.drawText(
+                "Drop your files to this window!",
+                100,
+                40,
+                20,
+                rl.Color.dark_gray,
+            );
+        } else {
+            rl.drawText(
+                "Dropped files:",
+                100,
+                40,
+                20,
+                rl.Color.dark_gray,
+            );
+
+            for (0..filePathCounter) |i| {
+                const castedI: i32 = @intCast(i);
+                if (@mod(i, 2) == 0) {
+                    rl.drawRectangle(
+                        0,
+                        85 + 40 * castedI,
+                        screenWidth,
+                        40,
+                        rl.fade(rl.Color.light_gray, 0.5),
+                    );
+                } else {
+                    rl.drawRectangle(
+                        0,
+                        85 + 40 * castedI,
+                        screenWidth,
+                        40,
+                        rl.fade(rl.Color.light_gray, 0.3),
+                    );
+                }
+
+                rl.drawText(
+                    filePaths[i][0 .. MAX_FILEPATH_SIZE - 1 :0],
+                    120,
+                    100 + 40 * castedI,
+                    10,
+                    rl.Color.gray,
+                );
+            }
+        }
+        //----------------------------------------------------------------------------------
+    }
+}