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{
*****************************************************************************
* Gtk3WSCheckLst.pp *
* ----------------- *
* *
* *
*****************************************************************************
*****************************************************************************
This file is part of the Lazarus Component Library (LCL)
See the file COPYING.modifiedLGPL.txt, included in this distribution,
for details about the license.
*****************************************************************************
}
unit Gtk3WSCheckLst;
{$i gtk3defines.inc}
{$mode objfpc}{$H+}
interface
uses
LazGObject2, LazGtk3, LazGLib2,
gtk3widgets,
////////////////////////////////////////////////////
// I M P O R T A N T
////////////////////////////////////////////////////
// To get as little as posible circles,
// uncomment only when needed for registration
////////////////////////////////////////////////////
CheckLst, StdCtrls, Controls, LCLType, SysUtils, Classes, LMessages, LCLProc,
////////////////////////////////////////////////////
WSCheckLst, WSLCLClasses, WSProc;
type
{ TGtk3WSCheckListBox }
{ TGtk3WSCustomCheckListBox }
TGtk3WSCustomCheckListBox = class(TWSCustomCheckListBox)
published
class function CreateHandle(const AWinControl: TWinControl; const AParams: TCreateParams): TLCLIntfHandle; override;
class function GetItemEnabled(const ACheckListBox: TCustomCheckListBox;
const AIndex: integer): Boolean; override;
class function GetState(const ACheckListBox: TCustomCheckListBox;
const AIndex: integer): TCheckBoxState; override;
class procedure SetItemEnabled(const ACheckListBox: TCustomCheckListBox;
const AIndex: integer; const AEnabled: Boolean); override;
class procedure SetState(const ACheckListBox: TCustomCheckListBox;
const AIndex: integer; const AState: TCheckBoxState); override;
end;
implementation
uses
Gtk3WSControls, gtk3procs;
{ TGtk3WSCheckListBox }
class function TGtk3WSCustomCheckListBox.CreateHandle(
const AWinControl: TWinControl; const AParams: TCreateParams): TLCLIntfHandle;
begin
// DebugLn('>TGtk3WSCustomCheckListBox.CreateHandle');
Result := TLCLIntfHandle(TGtk3CheckListBox.Create(AWinControl, AParams));
// DebugLn('<TGtk3WSCustomCheckListBox.CreateHandle: Result=',dbgHex(Result));
end;
class function TGtk3WSCustomCheckListBox.GetItemEnabled(
const ACheckListBox: TCustomCheckListBox; const AIndex: integer): Boolean;
var
Iter : TGtkTreeIter;
TreeView: PGtkTreeView;
ListStore: PGtkTreeModel;
Disabled: gboolean;
begin
Result := False;
if not WSCheckHandleAllocated(ACheckListBox, 'GetItemEnabled') then
Exit;
// DebugLn('TGtk3WSCustomCheckListBox.GetItemEnabled AIndex=',dbgs(AIndex));
TreeView := PGtkTreeView(TGtk3CheckListBox(ACheckListBox.Handle).GetContainerWidget);
ListStore := gtk_tree_view_get_model(TreeView);
if gtk_tree_model_iter_nth_child(ListStore, @Iter, nil, AIndex) then
begin
gtk_tree_model_get(ListStore, @Iter, [gtk3CLBDisabled, @Disabled, -1]);
Result := not Disabled;
end;
end;
class function TGtk3WSCustomCheckListBox.GetState(
const ACheckListBox: TCustomCheckListBox; const AIndex: integer
): TCheckBoxState;
var
Iter : TGtkTreeIter;
TreeView: PGtkTreeView;
ListStore: PGtkTreeModel;
b: byte;
begin
Result := cbUnchecked;
if not WSCheckHandleAllocated(ACheckListBox, 'GetState') then
Exit;
// DebugLn('TGtk3WSCustomCheckListBox.GetState AIndex=',dbgs(AIndex));
TreeView := PGtkTreeView(TGtk3CheckListBox(ACheckListBox.Handle).GetContainerWidget);
ListStore := gtk_tree_view_get_model(TreeView);
if gtk_tree_model_iter_nth_child(ListStore, @Iter, nil, AIndex) then
begin
gtk_tree_model_get(ListStore, @Iter, [gtk3CLBState, @b, -1]);
Result := TCheckBoxState(b);
end;
end;
class procedure TGtk3WSCustomCheckListBox.SetItemEnabled(
const ACheckListBox: TCustomCheckListBox; const AIndex: integer;
const AEnabled: Boolean);
var
Iter : TGtkTreeIter;
TreeView: PGtkTreeView;
ListStore: PGtkTreeModel;
Disabled: gboolean;
begin
if not WSCheckHandleAllocated(ACheckListBox, 'SetItemEnabled') then
Exit;
// DebugLn('TGtk3WSCustomCheckListBox.SetItemEnabled AIndex=',dbgs(AIndex),' AEnabled=',dbgs(AEnabled));
TreeView := PGtkTreeView(TGtk3CheckListBox(ACheckListBox.Handle).GetContainerWidget);
ListStore := gtk_tree_view_get_model(TreeView);
if gtk_tree_model_iter_nth_child(ListStore, @Iter, nil, AIndex) then
begin
Disabled := not AEnabled;
gtk_list_store_set(PGtkListStore(ListStore), @Iter, [gtk3CLBDisabled, Disabled, -1]);
end;
end;
class procedure TGtk3WSCustomCheckListBox.SetState(
const ACheckListBox: TCustomCheckListBox; const AIndex: integer;
const AState: TCheckBoxState);
var
Iter : TGtkTreeIter;
TreeView: PGtkTreeView;
ListStore: PGtkTreeModel;
begin
if not WSCheckHandleAllocated(ACheckListBox, 'SetState') then
Exit;
// DebugLn('TGtk3WSCustomCheckListBox.SetState AIndex=',dbgs(AIndex),' AEnabled=',dbgs(Ord(AState)));
TreeView := PGtkTreeView(TGtk3CheckListBox(ACheckListBox.Handle).GetContainerWidget);
ListStore := gtk_tree_view_get_model(TreeView);
if gtk_tree_model_iter_nth_child(ListStore, @Iter, nil, AIndex) then
gtk_list_store_set(PGtkListStore(ListStore), @Iter, [gtk3CLBState, Byte(AState), -1]);
end;
end.
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