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{
***************************************************************************
* *
* 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
Abstract: Show hint for meta packages
}
unit opkman_showhint;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Forms,
//LCL
Controls, Graphics, Dialogs, ExtCtrls, Menus, LCLType,
//Interface
LCLIntf, StdCtrls,
//OpkMan
virtualtrees;
type
{ TShowHintFrm }
TShowHintFrm = class(TForm)
mDescription: TMemo;
pnDescription: TPanel;
pnMain: TPanel;
pnPackageName: TPanel;
sbLazPackages: TScrollBox;
tmWait: TTimer;
procedure FormCreate(Sender: TObject);
procedure FormDeactivate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormKeyUp(Sender: TObject; var Key: Word; {%H-}Shift: TShiftState);
procedure tmWaitTimer(Sender: TObject);
private
FFrames: TList;
{$IFDEF LclGtk2}FModalShowing: Boolean;{$ENDIF}
function IsMouseOverForm: Boolean;
public
procedure ShowFormAt(const AX, AY: Integer);
procedure MoveFormTo(const AX, AY: Integer);
procedure UpdateInfo(ANode: PVirtualNode);
procedure SetupTimer(const AInterval: Integer);
end;
var
ShowHintFrm: TShowHintFrm;
implementation
{$R *.lfm}
{ TShowHintFrm }
uses opkman_visualtree, opkman_serializablepackages, opkman_showhintbase,
opkman_options, opkman_const {$IFDEF LclGtk2}, gtk2 {$ENDIF};
procedure TShowHintFrm.FormCreate(Sender: TObject);
begin
sbLazPackages.DoubleBuffered := True;
FFrames := TList.Create;
end;
procedure TShowHintFrm.FormDeactivate(Sender: TObject);
begin
tmWait.Enabled := False;
Hide;
end;
procedure TShowHintFrm.FormDestroy(Sender: TObject);
var
I: Integer;
begin
for I := FFrames.Count - 1 downto 0 do
TfrShowHint(FFrames.Items[I]).Free;
FFrames.Clear;
FFrames.Free;
end;
procedure TShowHintFrm.FormKeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
if Key = VK_ESCAPE then
Hide;
if Key = VK_SHIFT then
SetupTimer(300);
end;
function TShowHintFrm.IsMouseOverForm: Boolean;
var
R: TRect;
P: TPoint;
CH: Integer;
begin
Result := False;
CH := LCLIntf.GetSystemMetrics(SM_CYCAPTION);
R.Left := Left;
R.Top := Top;
R.Right := Left + Width + 15;
R.Bottom := Top + Height + CH + 15;
P.X := 0;
P.Y := 0;
GetCursorPos(P);
Result := PtInRect(R, P);
end;
procedure TShowHintFrm.tmWaitTimer(Sender: TObject);
{$IFDEF LclGtk2}
var
AWindow: PGtkWindow;
{$ENDIF}
begin
if not IsMouseOverForm then
Hide
{$IFDEF LclGtk2}
else
begin
if not FModalShowing then
begin
if not Self.HandleAllocated then
Exit;
AWindow := {%H-}PGtkWindow(Self.Handle);
gtk_window_set_modal(AWindow, True);
FModalShowing := True;
end;
end;
{$ENDIF}
end;
procedure TShowHintFrm.ShowFormAt(const AX, AY: Integer);
begin
Left := AX + 10;
Top := AY + 10;
Show;
end;
procedure TShowHintFrm.MoveFormTo(const AX, AY: Integer);
begin
Left := AX + 10;
Top := AY + 10;
end;
procedure TShowHintFrm.UpdateInfo(ANode: PVirtualNode);
var
Node: PVirtualNode;
Data: PData;
CurFrame: TfrShowHint;
I: Integer;
LazPackage: TLazarusPackage;
TotHeight: Integer;
begin
Data := VisualTree.VST.GetNodeData(ANode);
Caption := Format(rsMainFrm_rsPackageInformation, [Data^.PackageDisplayName]);
pnPackageName.Caption := Data^.PackageDisplayName;
CalcHeight(mDescription, Data^.CommunityDescription);
for I := FFrames.Count - 1 downto 0 do
begin
CurFrame := TfrShowHint(FFrames.Items[I]);
CurFrame.Visible := False;
CurFrame.Free;
CurFrame := nil;
end;
TotHeight := 0;
FFrames.Clear;
Node := VisualTree.VST.GetFirstChild(ANode);
while Assigned(Node) do
begin
Data := VisualTree.VST.GetNodeData(Node);
if Data^.DataType = 2 then
begin
LazPackage := SerializablePackages.FindLazarusPackage(Data^.LazarusPackageName);
CurFrame := TfrShowHint.Create(nil);
CurFrame.Align := alTop;
CurFrame.Init;
CurFrame.pnPackageName.Caption := ' ' + LazPackage.Name;
FFrames.Add(CurFrame);
CurFrame.pnBase.BorderSpacing.Bottom := 3;
CurFrame.Parent := sbLazPackages;
CalcHeight(CurFrame.mDescription, Trim(LazPackage.Description));
CalcHeight(CurFrame.mLicense, Trim(LazPackage.License));
CurFrame.Height := CurFrame.pnPackageName.Height + CurFrame.pnDescription.Height + CurFrame.pnLicense.Height +
CurFrame.BorderSpacing.Top + CurFrame.pnBase.BorderSpacing.Bottom;
TotHeight := TotHeight + CurFrame.Height;
CurFrame.Visible := True;
end;
Node := VisualTree.VST.GetNextSibling(Node);
end;
if FFrames.Count > 1 then
begin
TfrShowHint(FFrames.Items[0]).pnBuffer.Visible := True;
TfrShowHint(FFrames.Items[0]).BorderSpacing.Bottom := 0;
end;
TfrShowHint(FFrames.Items[FFrames.Count - 1]).pnBase.BorderSpacing.Top := 0;
TotHeight := TotHeight + pnPackageName.Height + pnDescription.Height + 25;
if (TotHeight < 51) or (TotHeight > 365) then
TotHeight := 365;
Self.Height := TotHeight;
if (Options.HintFormOption = 0) and (Self.Top + Self.Height > Screen.WorkAreaHeight) then
Self.Top := Screen.WorkAreaHeight - Self.Height;
sbLazPackages.SetFocus;
end;
procedure TShowHintFrm.SetupTimer(const AInterval: Integer);
begin
{$IFDEF LclGtk2}FModalShowing := False;{$ENDIF}
tmWait.Enabled := False;
tmWait.Interval := AInterval;
tmWait.Enabled := True;
end;
end.
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