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-- Programmed by Jedidiah Barber
-- Released into the public domain
with
FLTK.Widgets.Valuators.Sliders.Scrollbars;
package FLTK.Widgets.Groups.Scrolls is
type Scroll is new Group with private;
type Scroll_Reference (Data : not null access Scroll'Class) is limited null record
with Implicit_Dereference => Data;
type Scroll_Kind is
(Horizontal,
Vertical,
Both,
Always_On,
Horizontal_Always,
Vertical_Always,
Both_Always);
type Region is record
X, Y, W, H : Integer;
end record;
type Scrollbar_Data is record
X, Y, W, H : Integer;
Size, Total : Natural;
First, Position : Integer;
end record;
type Scroll_Info is record
Child_Box : Region;
Inner_Inc, Inner_Ex : Region;
H_Needed, V_Needed : Boolean;
H_Data, V_Data : Scrollbar_Data;
Scroll_Size : Natural;
end record;
package Forge is
function Create
(X, Y, W, H : in Integer;
Text : in String := "")
return Scroll;
function Create
(Parent : in out Group'Class;
X, Y, W, H : in Integer;
Text : in String := "")
return Scroll;
end Forge;
function H_Bar
(This : in out Scroll)
return Valuators.Sliders.Scrollbars.Scrollbar_Reference;
function V_Bar
(This : in out Scroll)
return Valuators.Sliders.Scrollbars.Scrollbar_Reference;
procedure Clear
(This : in out Scroll);
procedure Scroll_To
(This : in out Scroll;
X, Y : in Integer);
-- These two functions are far too similar in name and
-- function to the Get_X and Get_Y for Widgets.
function Get_Scroll_X
(This : in Scroll)
return Integer;
function Get_Scroll_Y
(This : in Scroll)
return Integer;
function Get_Scrollbar_Size
(This : in Scroll)
return Integer;
procedure Set_Scrollbar_Size
(This : in out Scroll;
To : in Integer);
function Get_Kind
(This : in Scroll)
return Scroll_Kind;
procedure Set_Kind
(This : in out Scroll;
Mode : in Scroll_Kind);
procedure Resize
(This : in out Scroll;
X, Y, W, H : in Integer);
procedure Recalculate_Scrollbars
(This : in Scroll;
Data : out Scroll_Info);
procedure Bounding_Box
(This : in Scroll;
X, Y, W, H : out Integer);
procedure Draw
(This : in out Scroll);
function Handle
(This : in out Scroll;
Event : in Event_Kind)
return Event_Outcome;
private
type Scroll is new Group with record
Horizon, Vertigo : aliased Valuators.Sliders.Scrollbars.Scrollbar;
end record;
overriding procedure Initialize
(This : in out Scroll);
overriding procedure Finalize
(This : in out Scroll);
procedure Extra_Init
(This : in out Scroll;
X, Y, W, H : in Integer;
Text : in String);
procedure Extra_Final
(This : in out Scroll);
pragma Inline (Clear);
pragma Inline (Scroll_To);
pragma Inline (Get_Scroll_X);
pragma Inline (Get_Scroll_Y);
pragma Inline (Get_Scrollbar_Size);
pragma Inline (Set_Scrollbar_Size);
pragma Inline (Get_Kind);
pragma Inline (Set_Kind);
pragma Inline (Resize);
pragma Inline (Bounding_Box);
pragma Inline (Draw);
pragma Inline (Handle);
end FLTK.Widgets.Groups.Scrolls;
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