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unit AdvancedEdit;
// Copyright (C) 2003, 2004 MySQL AB
//
// This program 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 program 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.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, TntForms,
Dialogs, ExtCtrls, StdCtrls, Themes, PNGImage, AuxFuncs, TntStdCtrls;
type
TAdvancedEditFrame = class(TTntFrame)
SearchEd: TTntEdit;
constructor Create(Owner: TComponent); override;
destructor Destroy; override;
procedure SearchEdChange(Sender: TObject);
procedure FrameMouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
procedure FrameResize(Sender: TObject);
private
FNHCanvas: TCanvas;
SearchPNGImg: TPNGObject;
SearchWithPopupPNGImg: TPNGObject;
ClearSearchPNGImg: TPNGObject;
XPStyleEnabled: Boolean;
procedure CMEnabledChanged(var Message: TMessage); message CM_ENABLEDCHANGED;
procedure WMPaint(var Message: TWMPaint); message WM_PAINT;
protected
procedure PaintWindow(DC: HDC); override;
procedure DoPaint;
end;
//----------------------------------------------------------------------------------------------------------------------
implementation
{$R *.dfm}
uses
PNGTools;
//----------------------------------------------------------------------------------------------------------------------
constructor TAdvancedEditFrame.Create(Owner: TComponent);
begin
inherited Create(Owner);
SearchPNGImg := LoadPNGImageFromResource('magnify_glass', nil);
SearchWithPopupPNGImg := LoadPNGImageFromResource('magnify_glass_with_popup', nil);
ClearSearchPNGImg := LoadPNGImageFromResource('clear_search', nil);
FNHCanvas := TControlCanvas.Create;
TControlCanvas(FNHCanvas).Control := Self;
XPStyleEnabled := getXPStyleEnabled;
end;
//----------------------------------------------------------------------------------------------------------------------
destructor TAdvancedEditFrame.Destroy;
begin
FNHCanvas.Free;
SearchPNGImg.Free;
SearchWithPopupPNGImg.Free;
ClearSearchPNGImg.Free;
inherited Destroy;
end;
//----------------------------------------------------------------------------------------------------------------------
procedure TAdvancedEditFrame.WMPaint(var Message: TWMPaint);
begin
PaintHandler(Message);
end;
//----------------------------------------------------------------------------------------------------------------------
procedure TAdvancedEditFrame.PaintWindow(DC: HDC);
begin
FNHCanvas.Handle := DC;
try
DoPaint;
finally
FNHCanvas.Handle := 0;
end;
end;
//----------------------------------------------------------------------------------------------------------------------
procedure TAdvancedEditFrame.DoPaint;
begin
if (XPStyleEnabled) then
begin
ThemeServices.DrawElement(FNHCanvas.Handle, ThemeServices.GetElementDetails(teEditTextNormal), Rect(0, 0, Width, Height));
end
else
begin
FNHCanvas.Brush.Color := clWhite;
FNHCanvas.Pen.Color := $00B99D7F;
FNHCanvas.Rectangle(0, 0, Width, Height);
end;
if (PopupMenu <> nil) then
begin
if SearchEd.Enabled then
SearchWithPopupPNGImg.Draw(FNHCanvas, Rect(3, 2, 3 + 19, 2 + 18))
else
SearchWithPopupPNGImg.DrawFaded(FNHCanvas, Rect(3, 2, 3 + 19, 2 + 18), 200)
end
else
begin
if SearchEd.Enabled then
SearchPNGImg.Draw(FNHCanvas, Rect(3, 2, 3 + 19, 2 + 18))
else
SearchPNGImg.DrawFaded(FNHCanvas, Rect(3, 2, 3 + 19, 2 + 18));
end;
if (SearchEd.Text <> '') then
ClearSearchPNGImg.Draw(FNHCanvas, Rect(Width - 16 - 4, 3, Width - 4, 3 + 16));
end;
//----------------------------------------------------------------------------------------------------------------------
procedure TAdvancedEditFrame.SearchEdChange(Sender: TObject);
begin
Invalidate;
end;
//----------------------------------------------------------------------------------------------------------------------
procedure TAdvancedEditFrame.FrameMouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
if SearchEd.Enabled and (ssLeft in Shift) then
begin
if (PopupMenu <> nil) then
if (X < 19 + 3) then
PopupMenu.Popup(Mouse.CursorPos.X, Mouse.CursorPos.Y);
if (X > Width - 16 - 4) then
begin
SearchEd.Text := '';
SearchEdChange(self);
end;
end;
if SearchEd.CanFocus then
SearchEd.SetFocus;
end;
//----------------------------------------------------------------------------------------------------------------------
procedure TAdvancedEditFrame.FrameResize(Sender: TObject);
begin
SearchEd.Top := 5;
SearchEd.Left := 26;
SearchEd.Width := Width - 186 + 138;
end;
//----------------------------------------------------------------------------------------------------------------------
procedure TAdvancedEditFrame.CMEnabledChanged(var Message: TMessage);
begin
inherited;
SearchEd.Enabled := Enabled;
Invalidate;
end;
//----------------------------------------------------------------------------------------------------------------------
end.
|
