From 14dc43710ffa0ce62e127f17bba3c10f3171005b Mon Sep 17 00:00:00 2001
From: Ry <ryanst755@gmail.com>
Date: Mon, 26 Dec 2022 18:22:21 -0800
Subject: [PATCH] Add support for dropping files onto the window to mount them
 as a disk

---
 src/bus.c    | 10 ++++++++++
 src/bus.h    |  1 +
 src/main.c   |  3 ++-
 src/screen.c | 13 +++++++++++--
 src/screen.h |  5 ++++-
 5 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/src/bus.c b/src/bus.c
index 42a758c..e3a210e 100644
--- a/src/bus.c
+++ b/src/bus.c
@@ -258,3 +258,13 @@ int bus_io_write(void *user, uint32_t value, uint32_t port) {
 
     return 0;
 }
+
+void drop_file(char *filename) {
+    int last_id = 0;
+    for (int i = 0; i < 4; i++) {
+        if (disk_controller.disks[i].size != 0) {
+            last_id++;
+        }
+    }
+    new_disk(filename, last_id);
+}
diff --git a/src/bus.h b/src/bus.h
index e50261f..0d72ae4 100644
--- a/src/bus.h
+++ b/src/bus.h
@@ -2,3 +2,4 @@
 
 int bus_io_read(void *user, uint32_t *value, uint32_t port);
 int bus_io_write(void *user, uint32_t value, uint32_t port);
+void drop_file(char *filename);
diff --git a/src/main.c b/src/main.c
index 98651bb..a985702 100644
--- a/src/main.c
+++ b/src/main.c
@@ -88,7 +88,8 @@ int main(int argc, char *argv[]) {
         key_released,
         mouse_pressed,
         mouse_released,
-        mouse_moved
+        mouse_moved,
+        drop_file
     );
 
     ScreenInit();
diff --git a/src/screen.c b/src/screen.c
index 3e71420..13a9f3e 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -115,7 +115,6 @@ int ScreenProcessEvents() {
                 break;
             }
 
-
             case SDL_MOUSEBUTTONUP: {
                 if (MainScreen.MouseReleased)
                     MainScreen.MouseReleased(event.button.button);
@@ -131,6 +130,14 @@ int ScreenProcessEvents() {
                 if (MainScreen.KeyReleased)
                     MainScreen.KeyReleased(event.key.keysym.scancode);
                 break;
+
+            case SDL_DROPFILE:
+                if (MainScreen.DropFile) {
+                    char *file = event.drop.file;
+                    MainScreen.DropFile(file);
+                    SDL_free(file);
+                }
+                break;
         }
     }
 
@@ -160,7 +167,8 @@ void ScreenCreate(
     ScreenKeyReleasedF keyreleased,
     ScreenMousePressedF mousepressed,
     ScreenMouseReleasedF mousereleased,
-    ScreenMouseMovedF mousemoved
+    ScreenMouseMovedF mousemoved,
+    ScreenDropFileF dropfile
 ) {
 
     if (w > WindowWidth)
@@ -178,4 +186,5 @@ void ScreenCreate(
     MainScreen.MousePressed = mousepressed;
     MainScreen.MouseReleased = mousereleased;
     MainScreen.MouseMoved = mousemoved;
+    MainScreen.DropFile = dropfile;
 }
diff --git a/src/screen.h b/src/screen.h
index 70d3cdc..d2ec628 100644
--- a/src/screen.h
+++ b/src/screen.h
@@ -10,6 +10,7 @@ typedef void (*ScreenKeyReleasedF)(int sdl_scancode);
 typedef void (*ScreenMousePressedF)(int button);
 typedef void (*ScreenMouseReleasedF)(int button);
 typedef void (*ScreenMouseMovedF)(int dx, int dy);
+typedef void (*ScreenDropFileF)(char *filename);
 
 struct Screen {
     int Width;
@@ -22,6 +23,7 @@ struct Screen {
     ScreenMousePressedF MousePressed;
     ScreenMouseReleasedF MouseReleased;
     ScreenMouseMovedF MouseMoved;
+    ScreenDropFileF DropFile;
 };
 
 void ScreenInit();
@@ -39,5 +41,6 @@ void ScreenCreate(
     ScreenKeyReleasedF keyreleased,
     ScreenMousePressedF mousepressed,
     ScreenMouseReleasedF mousereleased,
-    ScreenMouseMovedF mousemoved
+    ScreenMouseMovedF mousemoved,
+    ScreenDropFileF dropfile
 );