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unit ceTitleFootFrame;
{$mode ObjFPC}{$H+}
interface
uses
Classes, SysUtils, Forms, Controls, ExtCtrls, StdCtrls, Spin,
TATextElements, TAGraph,
ceFontFrame, ceShapeBrushPenMarginsFrame;
type
{ TChartTitleFootFrame }
TChartTitleFootFrame = class(TFrame)
Bevel1: TBevel;
cbShow: TCheckBox;
cbWordwrap: TCheckBox;
cbHTML: TCheckBox;
gbFont: TGroupBox;
gbShapeBrushPenMargins: TGroupBox;
gbMargin: TGroupBox;
lblMargin: TLabel;
lblText: TLabel;
MemoPanel: TPanel;
mmoText: TMemo;
PanelTop: TPanel;
ParamsPanel: TPanel;
rgAlignment: TRadioGroup;
seMargin: TSpinEdit;
procedure cbHTMLChange(Sender: TObject);
procedure cbShowChange(Sender: TObject);
procedure cbWordwrapClick(Sender: TObject);
procedure mmoTextChange(Sender: TObject);
procedure rgAlignmentClick(Sender: TObject);
procedure seMarginChange(Sender: TObject);
private
FTitle: TChartTitle;
FFontFrame: TChartFontFrame;
FShapeBrushPenMarginsFrame: TChartShapeBrushPenMarginsFrame;
procedure ChangedHandler(Sender: TObject);
function GetAlignment: TAlignment;
procedure SetAlignment(AValue: TAlignment);
procedure ShapeChangedHandler(AShape: TChartLabelShape);
protected
procedure CalculatePreferredSize(var PreferredWidth, PreferredHeight: integer;
{%H-}WithThemeSpace: Boolean); override;
function GetChart: TChart;
public
constructor Create(AOwner: TComponent); override;
procedure Prepare(ATitle: TChartTitle);
end;
implementation
{$R *.lfm}
uses
Math, TAChartUtils,
ceUtils;
constructor TChartTitleFootFrame.Create(AOwner: TComponent);
begin
inherited;
FFontFrame := TChartFontFrame.Create(self);
FFontFrame.Name := '';
FFontFrame.Align := alClient;
FFontFrame.BorderSpacing.Around := 8;
FFontFrame.OnChange := @ChangedHandler;
FFontFrame.AutoSize := true;
FFontFrame.Parent := gbFont;
gbFont.AutoSize := true;
gbFont.Caption := 'Font';
FShapeBrushPenMarginsFrame := TChartShapeBrushPenMarginsFrame.Create(self);
FShapeBrushPenMarginsFrame.Name := '';
FShapeBrushPenMarginsFrame.Align := alClient;
FShapeBrushPenMarginsFrame.BorderSpacing.Around := 8;
FShapeBrushPenMarginsFrame.OnChange := @ChangedHandler;
FShapeBrushPenMarginsFrame.OnShapeChange := @ShapeChangedHandler;
FShapeBrushPenMarginsFrame.AutoSize := true;
FShapeBrushPenMarginsFrame.Parent := gbShapeBrushPenMargins;
gbShapeBrushPenMargins.AutoSize := true;
// Caption of this groupbox depends on title/footer. Will be set by Prepare.
BoldHeaders(Self);
ParamsPanel.AutoSize := true;
end;
procedure TChartTitleFootFrame.CalculatePreferredSize(
var PreferredWidth, PreferredHeight: integer;
WithThemeSpace: Boolean);
var
w: Integer = 0;
h: Integer = 0;
begin
PreferredHeight := PanelTop.Height +
MemoPanel.Constraints.MinHeight +
ParamsPanel.Height + ParamsPanel.BorderSpacing.Top + ParamsPanel.BorderSpacing.Bottom;
// w := 100;
gbShapeBrushPenMargins.GetPreferredSize(w, h);
PreferredWidth :=
Max(w, Max(gbFont.Width, rgAlignment.Width)) * 2 +
Bevel1.Width;
end;
procedure TChartTitleFootFrame.cbShowChange(Sender: TObject);
begin
FTitle.Visible := cbShow.Checked;
lblText.Visible := cbShow.Checked;
mmoText.Visible := cbShow.Checked;
rgAlignment.Visible := cbShow.Checked;
gbShapeBrushPenMargins.Visible := cbShow.Checked;
gbFont.Visible := cbShow.Checked;
cbWordwrap.Visible := cbShow.Checked;
cbHTML.Visible := cbShow.Checked;
gbMargin.Visible := cbShow.Checked;
end;
procedure TChartTitleFootFrame.cbHTMLChange(Sender: TObject);
begin
FTitle.TextFormat := TEXT_FORMAT[cbHTML.Checked];
end;
procedure TChartTitleFootFrame.cbWordwrapClick(Sender: TObject);
begin
FTitle.Wordwrap := cbWordwrap.Checked;
end;
procedure TChartTitleFootFrame.ChangedHandler(Sender: TObject);
begin
GetChart.Invalidate;
end;
function TChartTitleFootFrame.GetAlignment: TAlignment;
const
ALIGNMENTS: array[0..2] of TAlignment = (taLeftJustify, taCenter, taRightJustify);
begin
Result := ALIGNMENTS[rgAlignment.ItemIndex];
end;
function TChartTitleFootFrame.GetChart: TChart;
begin
Result := FTitle.GetOwner as TChart;
end;
procedure TChartTitleFootFrame.mmoTextChange(Sender: TObject);
begin
FTitle.Text.Assign(mmoText.Lines);
end;
procedure TChartTitleFootFrame.Prepare(ATitle: TChartTitle);
begin
FTitle := ATitle;
cbShow.Checked := ATitle.Visible;
cbWordwrap.Checked := ATitle.Wordwrap;
cbHTML.Checked := (ATitle.TextFormat = tfHTML);
seMargin.Value := ATitle.Margin;
mmoText.Lines.Assign(ATitle.Text);
SetAlignment(ATitle.Alignment);
FFontFrame.Prepare(ATitle.Font, false);
FShapeBrushPenMarginsFrame.Prepare(ATitle.Shape, ATitle.Brush, ATitle.Frame, ATitle.Margins);
if ATitle = GetChart.Title then
gbShapeBrushPenMargins.Caption := 'Title background'
else
gbShapeBrushPenMargins.Caption := 'Footer background';
end;
procedure TChartTitleFootFrame.rgAlignmentClick(Sender: TObject);
begin
FTitle.Alignment := GetAlignment;
end;
procedure TChartTitleFootFrame.seMarginChange(Sender: TObject);
begin
FTitle.Margin := seMargin.Value;
end;
procedure TChartTitleFootFrame.SetAlignment(AValue: TAlignment);
const
ALIGNMENTS: array[TAlignment] of Integer = (0, 2, 1);
begin
rgAlignment.ItemIndex := ALIGNMENTS[AValue];
end;
procedure TChartTitleFootFrame.ShapeChangedHandler(AShape: TChartLabelShape);
begin
FTitle.Shape := AShape;
end;
end.
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