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{
fpGUI - Free Pascal GUI Library
GroupBox class declarations
Copyright (C) 2000 - 2006 See the file AUTHORS.txt, included in this
distribution, for details of the copyright.
See the file COPYING.modifiedLGPL, included in this distribution,
for details about redistributing fpGUI.
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.
}
{%mainunit fpgui.pp}
{$IFDEF read_interface}
{ TCustomGroupBox }
TCustomGroupBox = class(TBinWidget)
protected
procedure Paint(Canvas: TFCanvas); override;
procedure CalcSizes; override;
procedure Resized; override;
public
constructor Create(const pText: string; pOwner: TComponent); overload;
end;
TGroupBox = class(TCustomGroupBox)
published
property CanExpandWidth;
property CanExpandHeight;
property Enabled;
property Text;
end;
{$ENDIF read_interface}
{$IFDEF read_implementation}
// ===================================================================
// TCustomGroupBox
// ===================================================================
procedure TCustomGroupBox.Paint(Canvas: TFCanvas);
begin
Style.DrawGroupBox(Canvas, Rect(0, 0, Width, Height), Text, WidgetState);
end;
procedure TCustomGroupBox.CalcSizes;
var
Borders: TRect;
LabelWidth: Integer;
begin
LabelWidth := 0;
Borders := Style.GetGroupBoxBorders(TFCanvas(FindForm.Wnd.Canvas), Text, LabelWidth);
FMinSize.cx := Borders.Left + Borders.Right + LabelWidth;
FMinSize.cy := Borders.Top + Borders.Bottom;
if Assigned(Child) then
begin
if Child.MinSize.cx > LabelWidth then
FMinSize.cx := Borders.Left + Borders.Right + Child.MinSize.cx;
Inc(FMinSize.cy, Child.MinSize.cy);
if Child.DefSize.cx > LabelWidth then
FDefSize.cx := Borders.Left + Borders.Right + Child.MinSize.cx;
Inc(FDefSize.cy, Child.DefSize.cy);
if Child.MaxSize.cx > LabelWidth then
FMaxSize.cx := Min(Borders.Left + Borders.Right + Child.MaxSize.cx, InfiniteSize);
FMaxSize.cy := Min(MaxSize.cy + Child.MaxSize.cy, InfiniteSize);
end;
end;
procedure TCustomGroupBox.Resized;
var
LabelWidth: Integer;
Borders: TRect;
begin
LabelWidth := 0;
if Assigned(Child) then
begin
Borders := Style.GetGroupBoxBorders(TFCanvas(FindForm.Wnd.Canvas), Text, LabelWidth);
Child.SetBounds(Borders.TopLeft, Size(Width - Borders.Left - Borders.Right,
Height - Borders.Top - Borders.Bottom));
end;
end;
constructor TCustomGroupBox.Create(const pText: string; pOwner: TComponent);
begin
Create(pOwner);
Text := pText;
end;
{$ENDIF read_implementation}
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