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x2cl/Source/X2CLunaMenuBarPainter.pas

1107 lines
32 KiB
ObjectPascal

{
:: Implements a Uname-IT-style painter for the X2MenuBar.
::
:: Part of the X2Software Component Library
:: http://www.x2software.net/
::
:: Last changed: $Date$
:: Revision: $Rev$
:: Author: $Author$
}
unit X2CLunaMenuBarPainter;
interface
uses
Classes,
Graphics,
ImgList,
Windows,
X2CLMenuBar;
type
TX2MenuBarunaProperty = class(TPersistent)
private
FOnChange: TNotifyEvent;
protected
procedure Changed;
public
property OnChange: TNotifyEvent read FOnChange write FOnChange;
end;
TX2MenuBarunaColor = class(TX2MenuBarunaProperty)
private
FDefaultDisabled: TColor;
FDefaultHot: TColor;
FDefaultNormal: TColor;
FDefaultSelected: TColor;
FDisabled: TColor;
FHot: TColor;
FNormal: TColor;
FSelected: TColor;
function IsDisabledStored: Boolean;
function IsHotStored: Boolean;
function IsNormalStored: Boolean;
function IsSelectedStored: Boolean;
procedure SetDisabled(const Value: TColor);
procedure SetHot(const Value: TColor);
procedure SetNormal(const Value: TColor);
procedure SetSelected(const Value: TColor);
protected
procedure SetDefaultColors(AHot, ANormal, ASelected, ADisabled: TColor);
property DefaultDisabled: TColor read FDefaultDisabled write FDefaultDisabled;
property DefaultHot: TColor read FDefaultHot write FDefaultHot;
property DefaultNormal: TColor read FDefaultNormal write FDefaultNormal;
property DefaultSelected: TColor read FDefaultSelected write FDefaultSelected;
public
procedure Assign(Source: TPersistent); override;
published
property Disabled: TColor read FDisabled write SetDisabled stored IsDisabledStored;
property Hot: TColor read FHot write SetHot stored IsHotStored;
property Normal: TColor read FNormal write SetNormal stored IsNormalStored;
property Selected: TColor read FSelected write SetSelected stored IsSelectedStored;
end;
TX2MenuBarunaGroupColors = class(TX2MenuBarunaProperty)
private
FFill: TX2MenuBarunaColor;
FText: TX2MenuBarunaColor;
FBorder: TX2MenuBarunaColor;
procedure SetBorder(const Value: TX2MenuBarunaColor);
procedure SetFill(const Value: TX2MenuBarunaColor);
procedure SetText(const Value: TX2MenuBarunaColor);
protected
procedure ColorChange(Sender: TObject);
public
constructor Create;
destructor Destroy; override;
procedure Assign(Source: TPersistent); override;
published
property Border: TX2MenuBarunaColor read FBorder write SetBorder;
property Fill: TX2MenuBarunaColor read FFill write SetFill;
property Text: TX2MenuBarunaColor read FText write SetText;
end;
TX2MenuBarunaMetrics = class(TX2MenuBarunaProperty)
private
FAfterGroupHeader: Integer;
FAfterItem: Integer;
FAfterLastItem: Integer;
FBeforeFirstItem: Integer;
FBeforeGroupHeader: Integer;
FBeforeItem: Integer;
FGroupHeight: Integer;
FItemHeight: Integer;
FMargin: Integer;
FImageOffsetY: Integer;
FImageOffsetX: Integer;
procedure SetAfterGroupHeader(const Value: Integer);
procedure SetAfterItem(const Value: Integer);
procedure SetAfterLastItem(const Value: Integer);
procedure SetBeforeFirstItem(const Value: Integer);
procedure SetBeforeGroupHeader(const Value: Integer);
procedure SetBeforeItem(const Value: Integer);
procedure SetGroupHeight(const Value: Integer);
procedure SetItemHeight(const Value: Integer);
procedure SetMargin(const Value: Integer);
procedure SetImageOffsetX(const Value: Integer);
procedure SetImageOffsetY(const Value: Integer);
public
constructor Create;
procedure Assign(Source: TPersistent); override;
published
property AfterGroupHeader: Integer read FAfterGroupHeader write SetAfterGroupHeader default 8;
property AfterItem: Integer read FAfterItem write SetAfterItem default 2;
property AfterLastItem: Integer read FAfterLastItem write SetAfterLastItem default 10;
property BeforeFirstItem: Integer read FBeforeFirstItem write SetBeforeFirstItem default 0;
property BeforeGroupHeader: Integer read FBeforeGroupHeader write SetBeforeGroupHeader default 8;
property BeforeItem: Integer read FBeforeItem write SetBeforeItem default 2;
property GroupHeight: Integer read FGroupHeight write SetGroupHeight default 22;
property ItemHeight: Integer read FItemHeight write SetItemHeight default 21;
property Margin: Integer read FMargin write SetMargin default 10;
property ImageOffsetX: Integer read FImageOffsetX write SetImageOffsetX default 0;
property ImageOffsetY: Integer read FImageOffsetY write SetImageOffsetY default 0;
end;
THorzAlignment = (haLeft, haCenter, haRight);
TVertAlignment = (vaTop, vaCenter, vaBottom);
TX2MenuBarunaPainter = class(TX2CustomMenuBarPainter)
private
FArrowColor: TColor;
FBlurShadow: Boolean;
FColor: TColor;
FGroupColors: TX2MenuBarunaGroupColors;
FItemColors: TX2MenuBarunaColor;
FMetrics: TX2MenuBarunaMetrics;
FShadowColor: TColor;
FShadowOffset: Integer;
FGroupGradient: Integer;
FArrowImages: TCustomImageList;
FArrowImageIndex: TImageIndex;
FBackground: TPicture;
FBackgroundHorzAlignment: THorzAlignment;
FBackgroundVertAlignment: TVertAlignment;
procedure SetBlurShadow(const Value: Boolean);
procedure SetGroupColors(const Value: TX2MenuBarunaGroupColors);
procedure SetItemColors(const Value: TX2MenuBarunaColor);
procedure SetMetrics(const Value: TX2MenuBarunaMetrics);
procedure SetShadowColor(const Value: TColor);
procedure SetShadowOffset(const Value: Integer);
procedure SetGroupGradient(const Value: Integer);
procedure SetArrowImageIndex(const Value: TImageIndex);
procedure SetArrowImages(const Value: TCustomImageList);
procedure SetBackground(const Value: TPicture);
procedure SetBackgroundHorzAlignment(const Value: THorzAlignment);
procedure SetBackgroundVertAlignment(const Value: TVertAlignment);
protected
procedure Notification(AComponent: TComponent; Operation: TOperation); override;
function HasArrowImage: Boolean;
function ApplyMargins(const ABounds: TRect): TRect; override;
function UndoMargins(const ABounds: TRect): TRect; override;
function GetSpacing(AElement: TX2MenuBarSpacingElement): Integer; override;
function GetGroupHeaderHeight(AGroup: TX2MenuBarGroup): Integer; override;
function GetItemHeight(AItem: TX2MenuBarItem): Integer; override;
procedure DrawBackground(ACanvas: TCanvas; const ABounds: TRect; const AOffset: TPoint); override;
procedure DrawGroupHeader(ACanvas: TCanvas; AGroup: TX2MenuBarGroup; const ABounds: TRect; AState: TX2MenuBarDrawStates); override;
procedure DrawItem(ACanvas: TCanvas; AItem: TX2MenuBarItem; const ABounds: TRect; AState: TX2MenuBarDrawStates); override;
procedure DrawArrow(ACanvas: TCanvas; ABounds: TRect);
procedure ColorChange(Sender: TObject);
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure ResetColors;
published
property ArrowColor: TColor read FArrowColor write FArrowColor default clBlue;
property ArrowImageIndex: TImageIndex read FArrowImageIndex write SetArrowImageIndex default -1;
property ArrowImages: TCustomImageList read FArrowImages write SetArrowImages;
property Background: TPicture read FBackground write SetBackground;
property BackgroundHorzAlignment: THorzAlignment read FBackgroundHorzAlignment write SetBackgroundHorzAlignment default haLeft;
property BackgroundVertAlignment: TVertAlignment read FBackgroundVertAlignment write SetBackgroundVertAlignment default vaTop;
property BlurShadow: Boolean read FBlurShadow write SetBlurShadow default True;
property Color: TColor read FColor write FColor default clWindow;
property GroupColors: TX2MenuBarunaGroupColors read FGroupColors write SetGroupColors;
property GroupGradient: Integer read FGroupGradient write SetGroupGradient default 0;
property ItemColors: TX2MenuBarunaColor read FItemColors write SetItemColors;
property Metrics: TX2MenuBarunaMetrics read FMetrics write SetMetrics;
property ShadowColor: TColor read FShadowColor write SetShadowColor default clBtnShadow;
property ShadowOffset: Integer read FShadowOffset write SetShadowOffset default 2;
end;
implementation
uses
SysUtils,
X2CLGraphics;
const
ArrowMargin = 2;
ArrowWidth = 8;
procedure Blur(ASource: Graphics.TBitmap);
var
refBitmap: Graphics.TBitmap;
lines: array[0..2] of PRGBAArray;
lineDest: PRGBAArray;
lineIndex: Integer;
line: PRGBAArray;
xPos: Integer;
yPos: Integer;
maxX: Integer;
maxY: Integer;
sumRed: Integer;
sumGreen: Integer;
sumBlue: Integer;
samples: Integer;
begin
ASource.PixelFormat := pf32bit;
refBitmap := Graphics.TBitmap.Create;
try
refBitmap.Assign(ASource);
for lineIndex := Low(lines) to High(lines) do
lines[lineIndex] := nil;
maxY := Pred(ASource.Height);
for yPos := 0 to maxY do
begin
for lineIndex := Low(lines) to High(lines) - 1 do
lines[lineIndex] := lines[Succ(lineIndex)];
if yPos = maxY then
lines[High(lines)] := nil
else
lines[High(lines)] := refBitmap.ScanLine[Succ(yPos)];
lineDest := ASource.ScanLine[yPos];
maxX := Pred(ASource.Width);
for xPos := 0 to maxX do
begin
sumBlue := 0;
sumGreen := 0;
sumRed := 0;
samples := 0;
for lineIndex := Low(lines) to High(lines) do
if Assigned(lines[lineIndex]) then
begin
line := lines[lineIndex];
with line^[xPos] do
begin
Inc(sumBlue, rgbBlue);
Inc(sumGreen, rgbGreen);
Inc(sumRed, rgbRed);
Inc(samples);
end;
if xPos > 0 then
with line^[Pred(xPos)] do
begin
Inc(sumBlue, rgbBlue);
Inc(sumGreen, rgbGreen);
Inc(sumRed, rgbRed);
Inc(samples);
end;
if xPos < maxX then
with line^[Succ(xPos)] do
begin
Inc(sumBlue, rgbBlue);
Inc(sumGreen, rgbGreen);
Inc(sumRed, rgbRed);
Inc(samples);
end;
end;
if samples > 0 then
with lineDest^[xPos] do
begin
rgbBlue := sumBlue div samples;
rgbGreen := sumGreen div samples;
rgbRed := sumRed div samples;
end;
end;
end;
finally
FreeAndNil(refBitmap);
end;
end;
{ TX2MenuBarunaMetrics }
constructor TX2MenuBarunaMetrics.Create;
begin
inherited;
FAfterGroupHeader := 8;
FAfterItem := 2;
FAfterLastItem := 10;
FBeforeFirstItem := 0;
FBeforeGroupHeader := 8;
FBeforeItem := 2;
FGroupHeight := 22;
FItemHeight := 21;
FMargin := 10;
end;
procedure TX2MenuBarunaMetrics.Assign(Source: TPersistent);
begin
if Source is TX2MenuBarunaMetrics then
with TX2MenuBarunaMetrics(Source) do
begin
Self.AfterGroupHeader := AfterGroupHeader;
Self.AfterItem := AfterItem;
Self.AfterLastItem := AfterLastItem;
Self.BeforeFirstItem := BeforeFirstItem;
Self.BeforeGroupHeader := BeforeGroupHeader;
Self.BeforeItem := BeforeItem;
Self.GroupHeight := GroupHeight;
Self.ItemHeight := ItemHeight;
Self.Margin := Margin;
end
else
inherited;
end;
procedure TX2MenuBarunaMetrics.SetAfterGroupHeader(const Value: Integer);
begin
if Value <> FAfterGroupHeader then
begin
FAfterGroupHeader := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetAfterItem(const Value: Integer);
begin
if Value <> FAfterItem then
begin
FAfterItem := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetAfterLastItem(const Value: Integer);
begin
if Value <> FAfterLastItem then
begin
FAfterLastItem := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetBeforeFirstItem(const Value: Integer);
begin
if Value <> FBeforeFirstItem then
begin
FBeforeFirstItem := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetBeforeGroupHeader(const Value: Integer);
begin
if Value <> FBeforeGroupHeader then
begin
FBeforeGroupHeader := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetBeforeItem(const Value: Integer);
begin
if Value <> FBeforeItem then
begin
FBeforeItem := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetGroupHeight(const Value: Integer);
begin
if Value <> FGroupHeight then
begin
FGroupHeight := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetItemHeight(const Value: Integer);
begin
if Value <> FItemHeight then
begin
FItemHeight := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetMargin(const Value: Integer);
begin
if Value <> FMargin then
begin
FMargin := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetImageOffsetX(const Value: Integer);
begin
if Value <> FImageOffsetX then
begin
FImageOffsetX := Value;
Changed;
end;
end;
procedure TX2MenuBarunaMetrics.SetImageOffsetY(const Value: Integer);
begin
if Value <> FImageOffsetY then
begin
FImageOffsetY := Value;
Changed;
end;
end;
{ TX2MenuBarunaPainter }
constructor TX2MenuBarunaPainter.Create(AOwner: TComponent);
begin
inherited;
FArrowImageIndex := -1;
FBlurShadow := True;
FGroupColors := TX2MenuBarunaGroupColors.Create;
FItemColors := TX2MenuBarunaColor.Create;
FMetrics := TX2MenuBarunaMetrics.Create;
FShadowOffset := 2;
FBackground := TPicture.Create;
FBackgroundHorzAlignment := haLeft;
FBackgroundVertAlignment := vaTop;
FGroupColors.OnChange := ColorChange;
FItemColors.OnChange := ColorChange;
FMetrics.OnChange := ColorChange;
ResetColors;
end;
destructor TX2MenuBarunaPainter.Destroy;
begin
SetArrowImages(nil);
FreeAndNil(FBackground);
FreeAndNil(FMetrics);
FreeAndNil(FItemColors);
FreeAndNil(FGroupColors);
inherited;
end;
procedure TX2MenuBarunaPainter.ResetColors;
const
PurpleBlue = $00BE6363;
var
groupColor: TColor;
textColor: TColor;
disabledColor: TColor;
begin
ArrowColor := clBlue;
Color := clWindow;
ShadowColor := clBtnShadow;
{ Group buttons }
groupColor := Blend(Color, Color32(clBtnFace, 128));
GroupColors.Border.SetDefaultColors(PurpleBlue, clBlack, PurpleBlue, clBlack);
GroupColors.Fill.SetDefaultColors(groupColor, groupColor, groupColor, groupColor);
GroupColors.Text.SetDefaultColors(PurpleBlue, clWindowText, PurpleBlue, clGrayText);
{ Items }
textColor := Blend(clGrayText, Color32(clWindowText, 128));
disabledColor := Blend(Color, Color32(clGrayText, 128));
ItemColors.SetDefaultColors(clWindowText, textColor, clWindowText, disabledColor);
end;
procedure TX2MenuBarunaPainter.SetBlurShadow(const Value: Boolean);
begin
if Value <> FBlurShadow then
begin
FBlurShadow := Value;
NotifyObservers;
end;
end;
function TX2MenuBarunaPainter.ApplyMargins(const ABounds: TRect): TRect;
begin
Result := inherited ApplyMargins(ABounds);
InflateRect(Result, -Metrics.Margin, -Metrics.Margin);
end;
function TX2MenuBarunaPainter.UndoMargins(const ABounds: TRect): TRect;
begin
Result := inherited UndoMargins(ABounds);
InflateRect(Result, Metrics.Margin, Metrics.Margin);
end;
function TX2MenuBarunaPainter.GetSpacing(AElement: TX2MenuBarSpacingElement): Integer;
begin
Result := inherited GetSpacing(AElement);
case AElement of
seBeforeGroupHeader: Result := Metrics.BeforeGroupHeader;
seAfterGroupHeader: Result := Metrics.AfterGroupHeader;
seBeforeFirstItem: Result := Metrics.BeforeFirstItem;
seAfterLastItem: Result := Metrics.AfterLastItem;
seBeforeItem: Result := Metrics.BeforeItem;
seAfterItem: Result := Metrics.AfterItem;
end;
end;
function TX2MenuBarunaPainter.GetGroupHeaderHeight(AGroup: TX2MenuBarGroup): Integer;
begin
Result := Metrics.GroupHeight;
end;
function TX2MenuBarunaPainter.GetItemHeight(AItem: TX2MenuBarItem): Integer;
begin
Result := Metrics.ItemHeight
end;
procedure TX2MenuBarunaPainter.DrawBackground(ACanvas: TCanvas;
const ABounds: TRect;
const AOffset: TPoint);
var
pos: TPoint;
begin
ACanvas.Brush.Color := Self.Color;
ACanvas.FillRect(ABounds);
if (Background.Width > 0) and
(Background.Height > 0) then
begin
case BackgroundHorzAlignment of
haLeft: pos.X := 0;
haCenter: pos.X := (MenuBar.ClientWidth - Background.Width) div 2;
haRight: pos.X := ABounds.Right - Background.Width;
end;
case BackgroundVertAlignment of
vaTop: pos.Y := 0;
vaCenter: pos.Y := (MenuBar.ClientHeight - Background.Height) div 2;
vaBottom: pos.Y := MenuBar.ClientHeight - Background.Height;
end;
Dec(pos.X, AOffset.X);
Dec(pos.Y, AOffset.Y);
ACanvas.Draw(pos.X, pos.Y, Background.Graphic);
end;
end;
procedure TX2MenuBarunaPainter.DrawGroupHeader(ACanvas: TCanvas;
AGroup: TX2MenuBarGroup;
const ABounds: TRect;
AState: TX2MenuBarDrawStates);
const
ShadowMargin = 2;
procedure DrawShadowOutline(AShadowCanvas: TCanvas; AShadowBounds: TRect);
begin
AShadowCanvas.Brush.Color := ShadowColor;
AShadowCanvas.Pen.Color := ShadowColor;
AShadowCanvas.RoundRect(AShadowBounds.Left + ShadowMargin,
AShadowBounds.Top + ShadowMargin,
AShadowBounds.Right + ShadowMargin,
AShadowBounds.Bottom + ShadowMargin, 5, 5);
end;
function GetColor(AColor: TX2MenuBarunaColor): TColor;
begin
if AGroup.Enabled then
if (mdsSelected in AState) or (mdsGroupSelected in AState) then
Result := AColor.Selected
else if mdsHot in AState then
Result := AColor.Hot
else
Result := AColor.Normal
else
Result := AColor.Disabled;
end;
var
imageList: TCustomImageList;
imagePos: TPoint;
shadowBitmap: Graphics.TBitmap;
shadowBounds: TRect;
textRect: TRect;
clipRegion: HRGN;
startColor: TColor;
endColor: TColor;
groupOffset: TPoint;
begin
if not ((mdsSelected in AState) or (mdsGroupSelected in AState)) then
begin
{ Shadow }
if BlurShadow then
begin
shadowBitmap := Graphics.TBitmap.Create;
try
shadowBitmap.PixelFormat := pf32bit;
shadowBitmap.Width := (ABounds.Right - ABounds.Left + (ShadowMargin * 2));
shadowBitmap.Height := (ABounds.Bottom - ABounds.Top + (ShadowMargin * 2));
shadowBounds := Rect(0, 0, shadowBitmap.Width, shadowBitmap.Height);
groupOffset := ABounds.TopLeft;
DrawBackground(shadowBitmap.Canvas, shadowBounds, groupOffset);
DrawShadowOutline(shadowBitmap.Canvas, Rect(0, 0, shadowBitmap.Width - (ShadowMargin * 2),
shadowBitmap.Height - (ShadowMargin * 2)));
Blur(shadowBitmap);
ACanvas.Draw(ABounds.Left, ABounds.Top, shadowBitmap);
finally
FreeAndNil(shadowBitmap);
end
end else
begin
shadowBounds := ABounds;
OffsetRect(shadowBounds, -ShadowMargin, -ShadowMargin);
DrawShadowOutline(ACanvas, ABounds);
end;
end;
{ Rounded rectangle }
startColor := GetColor(GroupColors.Fill);
endColor := startColor;
if GroupGradient > 0 then
endColor := LightenColor(startColor, GroupGradient)
else if GroupGradient < 0 then
endColor := DarkenColor(startColor, -GroupGradient);
clipRegion := CreateRoundRectRgn(ABounds.Left, ABounds.Top, ABounds.Right, ABounds.Bottom, 5, 5);
SelectClipRgn(ACanvas.Handle, clipRegion);
GradientFillRect(ACanvas, ABounds, startColor, endColor);
SelectClipRgn(ACanvas.Handle, 0);
DeleteObject(clipRegion);
ACanvas.Brush.Style := bsClear;
ACanvas.Pen.Color := GetColor(GroupColors.Border);
ACanvas.Pen.Style := psSolid;
ACanvas.RoundRect(ABounds.Left, ABounds.Top, ABounds.Right, ABounds.Bottom, 5, 5);
ACanvas.Brush.Style := bsSolid;
ACanvas.Font.Color := GetColor(GroupColors.Text);
textRect := ABounds;
Inc(textRect.Left, 4);
Dec(textRect.Right, 4);
{ Image }
imageList := AGroup.MenuBar.Images;
if Assigned(imageList) then
begin
if AGroup.ImageIndex > -1 then
begin
imagePos.X := textRect.Left;
imagePos.Y := ABounds.Top + ((ABounds.Bottom - ABounds.Top - imageList.Height) div 2);
Inc(imagePos.X, Metrics.ImageOffsetX);
Inc(imagePos.Y, Metrics.ImageOffsetY);
imageList.Draw(ACanvas, imagePos.X, imagePos.Y, AGroup.ImageIndex);
end;
Inc(textRect.Left, imageList.Width + 4);
end;
{ Text }
ACanvas.Font.Style := [fsBold];
SetBkMode(ACanvas.Handle, TRANSPARENT);
DrawText(ACanvas, AGroup.Caption, textRect, taLeftJustify, taVerticalCenter,
False, csEllipsis);
end;
procedure TX2MenuBarunaPainter.DrawItem(ACanvas: TCanvas; AItem: TX2MenuBarItem;
const ABounds: TRect;
AState: TX2MenuBarDrawStates);
function GetColor(AColor: TX2MenuBarunaColor): TColor;
begin
if AItem.Enabled then
if mdsSelected in AState then
Result := AColor.Selected
else if mdsHot in AState then
Result := AColor.Hot
else
Result := AColor.Normal
else
Result := AColor.Disabled;
end;
var
focusBounds: TRect;
textBounds: TRect;
begin
focusBounds := ABounds;
if HasArrowImage then
Dec(focusBounds.Right, ArrowImages.Width + ArrowMargin)
else
Dec(focusBounds.Right, ArrowWidth + ArrowMargin);
if (mdsSelected in AState) then
begin
{ Focus rectangle and arrow }
DrawFocusRect(ACanvas, focusBounds);
DrawArrow(ACanvas, ABounds);
end;
{ Text }
ACanvas.Font.Color := GetColor(ItemColors);
textBounds := focusBounds;
Inc(textBounds.Left, 4);
Dec(textBounds.Right, 4);
if not AItem.Visible then
{ Design-time }
ACanvas.Font.Style := [fsItalic]
else
ACanvas.Font.Style := [];
SetBkMode(ACanvas.Handle, TRANSPARENT);
DrawText(ACanvas, AItem.Caption, textBounds, taRightJustify, taVerticalCenter,
False, csEllipsis);
end;
procedure TX2MenuBarunaPainter.DrawArrow(ACanvas: TCanvas; ABounds: TRect);
var
arrowX: Integer;
arrowY: Integer;
arrowPoints: array[0..2] of TPoint;
begin
if HasArrowImage then
begin
arrowX := ABounds.Right - ArrowImages.Width;
arrowY := ABounds.Top + ((ABounds.Bottom - ABounds.Top - ArrowImages.Height) div 2);
ArrowImages.Draw(ACanvas, arrowX, arrowY, ArrowImageIndex);
end else
begin
ACanvas.Brush.Color := ArrowColor;
ACanvas.Pen.Color := ArrowColor;
arrowPoints[0].X := ABounds.Right - 8;
arrowPoints[0].Y := ABounds.Top + ((ABounds.Bottom - ABounds.Top - 15) div 2) + 7;
arrowPoints[1].X := Pred(ABounds.Right);
arrowPoints[1].Y := arrowPoints[0].Y - 7;
arrowPoints[2].X := Pred(ABounds.Right);
arrowPoints[2].Y := arrowPoints[0].Y + 7;
ACanvas.Polygon(arrowPoints);
end;
end;
procedure TX2MenuBarunaPainter.ColorChange(Sender: TObject);
begin
NotifyObservers;
end;
function TX2MenuBarunaPainter.HasArrowImage: Boolean;
begin
Result := Assigned(ArrowImages) and (ArrowImageIndex > -1);
end;
procedure TX2MenuBarunaPainter.Notification(AComponent: TComponent; Operation: TOperation);
begin
if (Operation = opRemove) and (AComponent = FArrowImages) then
SetArrowImages(nil);
inherited;
end;
procedure TX2MenuBarunaPainter.SetGroupColors(const Value: TX2MenuBarunaGroupColors);
begin
if Value <> FGroupColors then
begin
FGroupColors.Assign(Value);
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetItemColors(const Value: TX2MenuBarunaColor);
begin
if Value <> FItemColors then
begin
FItemColors.Assign(Value);
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetMetrics(const Value: TX2MenuBarunaMetrics);
begin
if Value <> FMetrics then
begin
FMetrics.Assign(Value);
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetShadowColor(const Value: TColor);
begin
if Value <> FShadowColor then
begin
FShadowColor := Value;
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetShadowOffset(const Value: Integer);
begin
if Value <> FShadowOffset then
begin
FShadowOffset := Value;
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetGroupGradient(const Value: Integer);
begin
if Value <> FGroupGradient then
begin
FGroupGradient := Value;
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetArrowImageIndex(const Value: TImageIndex);
begin
if Value <> FArrowImageIndex then
begin
FArrowImageIndex := Value;
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetArrowImages(const Value: TCustomImageList);
begin
if Value <> FArrowImages then
begin
if Assigned(FArrowImages) then
FArrowImages.RemoveFreeNotification(Self);
FArrowImages := Value;
if Assigned(FArrowImages) then
FArrowImages.FreeNotification(Self);
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetBackground(const Value: TPicture);
begin
FBackground.Assign(Value);
NotifyObservers;
end;
procedure TX2MenuBarunaPainter.SetBackgroundHorzAlignment(const Value: THorzAlignment);
begin
if Value <> FBackgroundHorzAlignment then
begin
FBackgroundHorzAlignment := Value;
NotifyObservers;
end;
end;
procedure TX2MenuBarunaPainter.SetBackgroundVertAlignment(const Value: TVertAlignment);
begin
if Value <> FBackgroundVertAlignment then
begin
FBackgroundVertAlignment := Value;
NotifyObservers;
end;
end;
{ TX2MenuBarunaProperty }
procedure TX2MenuBarunaProperty.Changed;
begin
if Assigned(FOnChange) then
FOnChange(Self);
end;
{ TX2MenuBarunaColor }
procedure TX2MenuBarunaColor.Assign(Source: TPersistent);
begin
if Source is TX2MenuBarunaColor then
with TX2MenuBarunaColor(Source) do
begin
Self.DefaultDisabled := DefaultDisabled;
Self.DefaultHot := DefaultHot;
Self.DefaultNormal := DefaultNormal;
self.DefaultSelected := DefaultSelected;
Self.Disabled := Disabled;
Self.Hot := Hot;
Self.Normal := Normal;
self.Selected := Selected;
end
else
inherited;
end;
function TX2MenuBarunaColor.IsDisabledStored: Boolean;
begin
Result := (FDisabled <> FDefaultDisabled);
end;
function TX2MenuBarunaColor.IsHotStored: Boolean;
begin
Result := (FHot <> FDefaultHot);
end;
function TX2MenuBarunaColor.IsNormalStored: Boolean;
begin
Result := (FNormal <> FDefaultNormal);
end;
function TX2MenuBarunaColor.IsSelectedStored: Boolean;
begin
Result := (FSelected <> FDefaultSelected);
end;
procedure TX2MenuBarunaColor.SetDefaultColors(AHot, ANormal, ASelected, ADisabled: TColor);
begin
FDefaultDisabled := ADisabled;
FDefaultHot := AHot;
FDefaultNormal := ANormal;
FDefaultSelected := ASelected;
FDisabled := ADisabled;
FHot := AHot;
FNormal := ANormal;
FSelected := ASelected;
end;
procedure TX2MenuBarunaColor.SetDisabled(const Value: TColor);
begin
if Value <> FDisabled then
begin
FDisabled := Value;
Changed;
end;
end;
procedure TX2MenuBarunaColor.SetHot(const Value: TColor);
begin
if Value <> FHot then
begin
FHot := Value;
Changed;
end;
end;
procedure TX2MenuBarunaColor.SetNormal(const Value: TColor);
begin
if Value <> FNormal then
begin
FNormal := Value;
Changed;
end;
end;
procedure TX2MenuBarunaColor.SetSelected(const Value: TColor);
begin
if Value <> FSelected then
begin
FSelected := Value;
Changed;
end;
end;
{ TX2MenuBarunaGroupColors }
constructor TX2MenuBarunaGroupColors.Create;
begin
inherited;
FBorder := TX2MenuBarunaColor.Create;
FFill := TX2MenuBarunaColor.Create;
FText := TX2MenuBarunaColor.Create;
FBorder.OnChange := ColorChange;
FFill.OnChange := ColorChange;
FText.OnChange := ColorChange;
end;
destructor TX2MenuBarunaGroupColors.Destroy;
begin
FreeAndNil(FText);
FreeAndNil(FFill);
FreeAndNil(FBorder);
inherited;
end;
procedure TX2MenuBarunaGroupColors.Assign(Source: TPersistent);
begin
if Source is TX2MenuBarunaGroupColors then
with TX2MenuBarunaGroupColors(Source) do
begin
Self.Border.Assign(Border);
Self.Fill.Assign(Fill);
Self.Text.Assign(Text);
end
else
inherited;
end;
procedure TX2MenuBarunaGroupColors.ColorChange(Sender: TObject);
begin
Changed;
end;
procedure TX2MenuBarunaGroupColors.SetBorder(const Value: TX2MenuBarunaColor);
begin
if Value <> FBorder then
begin
FBorder.Assign(Value);
Changed;
end;
end;
procedure TX2MenuBarunaGroupColors.SetFill(const Value: TX2MenuBarunaColor);
begin
if Value <> FFill then
begin
FFill.Assign(Value);
Changed;
end;
end;
procedure TX2MenuBarunaGroupColors.SetText(const Value: TX2MenuBarunaColor);
begin
if Value <> FText then
begin
FText.Assign(Value);
Changed;
end;
end;
end.