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unit opkman_packagelistfrm;
{$mode objfpc}{$H+}
{
***************************************************************************
* *
* This source is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This code is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* A copy of the GNU General Public License is available on the World *
* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
* obtain it by writing to the Free Software Foundation, *
* Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA. *
* *
***************************************************************************
Author: Balázs Székely
}
interface
uses
SysUtils,
// LCL
Forms, Controls, Graphics, ExtCtrls, StdCtrls, VirtualTrees,
// OpkMan
opkman_const, opkman_serializablepackages, opkman_options, opkman_visualtree;
type
{ TPackageListFrm }
TPackageListFrm = class(TForm)
bOk: TButton;
bYes: TButton;
bNo: TButton;
imTree: TImageList;
lbMessage: TLabel;
pnUpDown: TPanel;
pnMessage: TPanel;
pnButtons: TPanel;
procedure FormClose(Sender: TObject; var {%H-}CloseAction: TCloseAction);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormKeyPress(Sender: TObject; var Key: char);
procedure lbMessageResize(Sender: TObject);
private
FVST: TVirtualStringTree;
FModRes: TModalResult;
function GetCount: Integer;
procedure SetupControls(const ATyp: Integer);
procedure VSTGetText(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex; {%H-}TextType: TVSTTextType; var CellText: String);
procedure VSTGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode;
{%H-}Kind: TVTImageKind; Column: TColumnIndex; var {%H-}Ghosted: Boolean;
var ImageIndex: Integer);
procedure VSTCompareNodes(Sender: TBaseVirtualTree; Node1,
Node2: PVirtualNode; Column: TColumnIndex; var Result: Integer);
procedure VSTFreeNode(Sender: TBaseVirtualTree; Node: PVirtualNode);
function IsNodeVisible(const APackageName: String): Boolean;
public
procedure PopulateList(const ATyp: Integer; const AExtra: String = '');
property Count: Integer read GetCount;
end;
var
PackageListFrm: TPackageListFrm;
implementation
{$R *.lfm}
{ TPackageListFrm }
type
PData = ^TData;
TData = record
FName: string[100];
FImageIndex: Integer;
end;
procedure TPackageListFrm.FormKeyPress(Sender: TObject; var Key: char);
begin
if Key = #13 then
begin
FModRes := mrYes;
Close;
end
else if Key = #27 then
begin
FModRes := mrNo;
Close;
end;
end;
procedure TPackageListFrm.lbMessageResize(Sender: TObject);
begin
pnMessage.Height := lbMessage.Top + lbMessage.Height + 5;
end;
function TPackageListFrm.GetCount: Integer;
begin
Result := FVST.RootNodeCount;
end;
procedure TPackageListFrm.SetupControls(const ATyp: Integer);
begin
FModRes := mrNone;
case ATyp of
0: Caption := rsPackageListFrm_Caption0;
1: Caption := rsPackageListFrm_Caption1;
2: Caption := rsPackageListFrm_Caption0;
end;
bYes.Caption := rsPackageListFrm_bYes_Caption;
bNo.Caption := rsPackageListFrm_bNo_Caption;
bOk.Caption := rsPackageListFrm_bOk_Caption;
bYes.Top := (pnButtons.Height - bYes.Height) div 2;
bNo.Top := (pnButtons.Height - bNo.Height) div 2;
bOk.Top := (pnButtons.Height - bOk.Height) div 2;
pnMessage.Height := lbMessage.Top + lbMessage.Height + 5;
end;
procedure TPackageListFrm.PopulateList(const ATyp: Integer; const AExtra: String);
var
I, J: Integer;
Node: PVirtualNode;
Data: PData;
LazarusPkg: TLazarusPackage;
ChkCnt, InvCnt: Integer;
begin
SetupControls(ATyp);
ChkCnt := 0;
InvCnt := 0;
for I := 0 to SerializablePackages.Count - 1 do
begin
if not IsNodeVisible(SerializablePackages.Items[I].DisplayName) then
Continue;
if ATyp = 0 then
begin
for J := 0 to SerializablePackages.Items[I].LazarusPackages.Count - 1 do
begin
LazarusPkg := TLazarusPackage(SerializablePackages.Items[I].LazarusPackages.Items[J]);
if (LazarusPkg.Checked) and (psInstalled in LazarusPkg.PackageStates) then
begin
Node := FVST.AddChild(nil);
Data := FVST.GetNodeData(Node);
Data^.FName := LazarusPkg.Name + '(' + LazarusPkg.InstalledFileVersion + ')';
Data^.FImageIndex := 1;
end;
end;
end
else if ATyp = 1 then
begin
if (SerializablePackages.Items[I].Checked) and (FileExists(AExtra + SerializablePackages.Items[I].RepositoryFileName)) then
begin
Node := FVST.AddChild(nil);
Data := FVST.GetNodeData(Node);
if SerializablePackages.Items[I].DisplayName <> '' then
Data^.FName := SerializablePackages.Items[I].DisplayName
else
Data^.FName := SerializablePackages.Items[I].Name;
Data^.FImageIndex := 0;
end;
end
else if ATyp = 2 then
begin
if (SerializablePackages.Items[I].Checked) then
begin
Inc(ChkCnt);
if (Trim(SerializablePackages.Items[I].DownloadURL) = '') or
(Trim(SerializablePackages.Items[I].DownloadZipURL) = '') or
(SerializablePackages.GetPackageInstallState(SerializablePackages.Items[I]) = 0) then
begin
Inc(InvCnt);
Node := FVST.AddChild(nil);
Data := FVST.GetNodeData(Node);
if SerializablePackages.Items[I].DisplayName <> '' then
Data^.FName := SerializablePackages.Items[I].DisplayName
else
Data^.FName := SerializablePackages.Items[I].Name;
Data^.FImageIndex := 0;
SerializablePackages.Items[I].ChangePackageStates(ctAdd, psError);
end;
end;
end;
end;
if (ATyp = 2) and (ChkCnt = InvCnt) then
begin
bYes.Visible := False;
bNo.Visible := False;
bOk.Visible := True;
lbMessage.Caption := rsMainFrm_PackageUpdate1;
end;
FVST.SortTree(0, sdAscending);
end;
procedure TPackageListFrm.FormClose(Sender: TObject;
var CloseAction: TCloseAction);
begin
if FModRes <> mrNone then
ModalResult := FModRes;
end;
procedure TPackageListFrm.FormCreate(Sender: TObject);
begin
if not Options.UseDefaultTheme then
Self.Color := clBtnFace;
FVST := TVirtualStringTree.Create(nil);
with FVST do
begin
Parent := Self;
Align := alClient;
Anchors := [akLeft, akTop, akRight];
Images := imTree;
if not Options.UseDefaultTheme then
Color := clBtnFace;
DefaultNodeHeight := 25;
Indent := 0;
TabOrder := 1;
DefaultText := '';
Header.AutoSizeIndex := 0;
Header.Height := 25;
Colors.BorderColor := clBlack;
BorderSpacing.Top := 5;
BorderSpacing.Left := 15;
BorderSpacing.Right := 15;
with Header.Columns.Add do begin
Position := 0;
Width := 250;
Text := 'PackageName';
end;
Header.Options := [hoAutoResize, hoColumnResize, hoRestrictDrag, hoShowSortGlyphs, hoAutoSpring];
Header.SortColumn := 0;
TabOrder := 2;
TreeOptions.MiscOptions := [toFullRepaintOnResize, toInitOnSave, toToggleOnDblClick, toWheelPanning];
TreeOptions.PaintOptions := [toHideFocusRect, toPopupMode, toShowButtons, toShowDropmark, toThemeAware, toUseBlendedImages];
TreeOptions.SelectionOptions := [toFullRowSelect, toRightClickSelect];
TreeOptions.AutoOptions := [toAutoTristateTracking];
OnGetText := @VSTGetText;
OnGetImageIndex := @VSTGetImageIndex;
OnCompareNodes := @VSTCompareNodes;
OnFreeNode := @VSTFreeNode;
end;
FVST.NodeDataSize := SizeOf(TData);
end;
procedure TPackageListFrm.FormDestroy(Sender: TObject);
begin
FVST.Clear;
FVST.Free;
end;
procedure TPackageListFrm.VSTGetText(Sender: TBaseVirtualTree;
Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType;
var CellText: String);
var
Data: PData;
begin
Data := FVST.GetNodeData(Node);
if Column = 0 then
CellText := Data^.FName;
end;
procedure TPackageListFrm.VSTGetImageIndex(Sender: TBaseVirtualTree;
Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex;
var Ghosted: Boolean; var ImageIndex: Integer);
var
Data: PData;
begin
Data := FVST.GetNodeData(Node);
if Column = 0 then
ImageIndex := Data^.FImageIndex;
end;
procedure TPackageListFrm.VSTCompareNodes(Sender: TBaseVirtualTree; Node1,
Node2: PVirtualNode; Column: TColumnIndex; var Result: Integer);
var
Data1: PData;
Data2: PData;
begin
Data1 := Sender.GetNodeData(Node1);
Data2 := Sender.GetNodeData(Node2);
if Column = 0 then
Result := CompareText(Data1^.FName, Data2^.FName);
end;
procedure TPackageListFrm.VSTFreeNode(Sender: TBaseVirtualTree;
Node: PVirtualNode);
var
Data: PData;
begin
Data := FVST.GetNodeData(Node);
Finalize(Data^);
end;
function TPackageListFrm.IsNodeVisible(const APackageName: String): Boolean;
var
Node: PVirtualNode;
Data: opkman_visualtree.PData;
begin
Result := False;
Node := VisualTree.VST.GetFirst;
while Assigned(Node) do
begin
Data := VisualTree.VST.GetNodeData(Node);
if (Data^.DataType = 1) and (Data^.PackageDisplayName = APackageName) then
begin
Result := VisualTree.VST.IsVisible[Node];
Break;
end;
Node := VisualTree.VST.GetNext(Node);
end;
end;
end.
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