summaryrefslogtreecommitdiff
path: root/body/fltk-images-bitmaps-xbm.adb
diff options
context:
space:
mode:
authorJedidiah Barber <contact@jedbarber.id.au>2025-01-21 21:04:54 +1300
committerJedidiah Barber <contact@jedbarber.id.au>2025-01-21 21:04:54 +1300
commitb4438b2fbe895694be98e6e8426103deefc51448 (patch)
tree760d86cd7c06420a91dad102cc9546aee73146fc /body/fltk-images-bitmaps-xbm.adb
parenta4703a65b015140cd4a7a985db66264875ade734 (diff)
Split public API and private implementation files into different directories
Diffstat (limited to 'body/fltk-images-bitmaps-xbm.adb')
-rw-r--r--body/fltk-images-bitmaps-xbm.adb72
1 files changed, 72 insertions, 0 deletions
diff --git a/body/fltk-images-bitmaps-xbm.adb b/body/fltk-images-bitmaps-xbm.adb
new file mode 100644
index 0000000..eb8c093
--- /dev/null
+++ b/body/fltk-images-bitmaps-xbm.adb
@@ -0,0 +1,72 @@
+
+
+-- Programmed by Jedidiah Barber
+-- Released into the public domain
+
+
+with
+
+ Interfaces.C;
+
+
+package body FLTK.Images.Bitmaps.XBM is
+
+
+ function new_fl_xbm_image
+ (F : in Interfaces.C.char_array)
+ return Storage.Integer_Address;
+ pragma Import (C, new_fl_xbm_image, "new_fl_xbm_image");
+ pragma Inline (new_fl_xbm_image);
+
+ procedure free_fl_xbm_image
+ (P : in Storage.Integer_Address);
+ pragma Import (C, free_fl_xbm_image, "free_fl_xbm_image");
+ pragma Inline (free_fl_xbm_image);
+
+
+
+
+ overriding procedure Finalize
+ (This : in out XBM_Image) is
+ begin
+ if This.Void_Ptr /= Null_Pointer and This.Needs_Dealloc then
+ free_fl_xbm_image (This.Void_Ptr);
+ This.Void_Ptr := Null_Pointer;
+ end if;
+ end Finalize;
+
+
+
+
+ --------------------
+ -- Construction --
+ --------------------
+
+ package body Forge is
+
+ function Create
+ (Filename : in String)
+ return XBM_Image is
+ begin
+ return This : XBM_Image do
+ This.Void_Ptr := new_fl_xbm_image
+ (Interfaces.C.To_C (Filename));
+ case fl_image_fail (This.Void_Ptr) is
+ when 1 =>
+ -- raise No_Image_Error;
+ null;
+ -- Since the image depth and line data are both zero here,
+ -- the fail method will think there's no image even though
+ -- nothing is wrong. This is a bug in FLTK.
+ when 2 => raise File_Access_Error;
+ when 3 => raise Format_Error;
+ when others => null;
+ end case;
+ end return;
+ end Create;
+
+ end Forge;
+
+
+end FLTK.Images.Bitmaps.XBM;
+