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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-devices-surface.adb
parenta4703a65b015140cd4a7a985db66264875ade734 (diff)
Split public API and private implementation files into different directories
Diffstat (limited to 'body/fltk-devices-surface.adb')
-rw-r--r--body/fltk-devices-surface.adb180
1 files changed, 180 insertions, 0 deletions
diff --git a/body/fltk-devices-surface.adb b/body/fltk-devices-surface.adb
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+
+
+-- Programmed by Jedidiah Barber
+-- Released into the public domain
+
+
+package body FLTK.Devices.Surface is
+
+
+ ------------------------
+ -- Functions From C --
+ ------------------------
+
+ function new_fl_surface_device
+ (G : in Storage.Integer_Address)
+ return Storage.Integer_Address;
+ pragma Import (C, new_fl_surface_device, "new_fl_surface_device");
+ pragma Inline (new_fl_surface_device);
+
+ procedure free_fl_surface_device
+ (S : in Storage.Integer_Address);
+ pragma Import (C, free_fl_surface_device, "free_fl_surface_device");
+ pragma Inline (free_fl_surface_device);
+
+
+
+
+ procedure fl_surface_device_set_current
+ (S : in Storage.Integer_Address);
+ pragma Import (C, fl_surface_device_set_current, "fl_surface_device_set_current");
+ pragma Inline (fl_surface_device_set_current);
+
+ function fl_surface_device_get_surface
+ return Storage.Integer_Address;
+ pragma Import (C, fl_surface_device_get_surface, "fl_surface_device_get_surface");
+ pragma Inline (fl_surface_device_get_surface);
+
+
+
+
+ function fl_surface_device_get_driver
+ (S : in Storage.Integer_Address)
+ return Storage.Integer_Address;
+ pragma Import (C, fl_surface_device_get_driver, "fl_surface_device_get_driver");
+ pragma Inline (fl_surface_device_get_driver);
+
+ procedure fl_surface_device_set_driver
+ (S, G : in Storage.Integer_Address);
+ pragma Import (C, fl_surface_device_set_driver, "fl_surface_device_set_driver");
+ pragma Inline (fl_surface_device_set_driver);
+
+
+
+
+ -------------------
+ -- Destructors --
+ -------------------
+
+ procedure Finalize
+ (This : in out Surface_Device) is
+ begin
+ if This.Void_Ptr /= Null_Pointer and This.Needs_Dealloc then
+ free_fl_surface_device (This.Void_Ptr);
+ This.Void_Ptr := Null_Pointer;
+ end if;
+ end Finalize;
+
+
+
+
+ --------------------
+ -- Constructors --
+ --------------------
+
+ package body Forge is
+
+ function Create
+ (Graphics : in out FLTK.Devices.Graphics.Graphics_Driver)
+ return Surface_Device is
+ begin
+ return This : Surface_Device do
+ This.Void_Ptr := new_fl_surface_device (Wrapper (Graphics).Void_Ptr);
+ This.My_Driver := Graphics'Unchecked_Access;
+ end return;
+ end Create;
+
+ end Forge;
+
+
+
+
+ -------------------------
+ -- Static Attributes --
+ -------------------------
+
+ Original_Surface : aliased Surface_Device;
+ Original_Graphics : aliased FLTK.Devices.Graphics.Graphics_Driver;
+
+ Current_Surface : access Surface_Device'Class := Original_Surface'Access;
+
+
+ procedure Set_Current_Bookkeep
+ (Surface : in out Surface_Device'Class) is
+ begin
+ Current_Surface := Surface'Unchecked_Access;
+ end Set_Current_Bookkeep;
+
+
+
+
+ -----------------------
+ -- API Subprograms --
+ -----------------------
+
+ function Get_Current
+ return Surface_Device_Reference is
+ begin
+ return Ref : Surface_Device_Reference (Data => Current_Surface);
+ end Get_Current;
+
+
+ procedure Set_Current
+ (This : in out Surface_Device) is
+ begin
+ fl_surface_device_set_current (This.Void_Ptr);
+ This.Set_Current_Bookkeep;
+ end Set_Current;
+
+
+ function Get_Original
+ return Surface_Device_Reference is
+ begin
+ return Ref : Surface_Device_Reference (Data => Original_Surface'Access);
+ end Get_Original;
+
+
+
+
+ function Has_Driver
+ (This : in Surface_Device)
+ return Boolean is
+ begin
+ return This.My_Driver /= null and then
+ Wrapper (This.My_Driver.all).Void_Ptr /= Null_Pointer;
+ end Has_Driver;
+
+
+ function Get_Driver
+ (This : in out Surface_Device)
+ return FLTK.Devices.Graphics.Graphics_Driver_Reference is
+ begin
+ return Ref : FLTK.Devices.Graphics.Graphics_Driver_Reference (Data => This.My_Driver);
+ end Get_Driver;
+
+
+ procedure Set_Driver
+ (This : in out Surface_Device;
+ Driver : in out FLTK.Devices.Graphics.Graphics_Driver'Class) is
+ begin
+ fl_surface_device_set_driver (This.Void_Ptr, Wrapper (Driver).Void_Ptr);
+ This.My_Driver := Driver'Unchecked_Access;
+ end Set_Driver;
+
+
+begin
+
+
+ Original_Surface.Void_Ptr := fl_surface_device_get_surface;
+ Original_Surface.Needs_Dealloc := False;
+
+ Wrapper (Original_Graphics).Void_Ptr :=
+ fl_surface_device_get_driver (Original_Surface.Void_Ptr);
+ Wrapper (Original_Graphics).Needs_Dealloc := False;
+
+ Original_Surface.My_Driver := Original_Graphics'Access;
+
+
+end FLTK.Devices.Surface;
+
+