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ksSlideMenu.pas
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ksSlideMenu.pas
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{*******************************************************************************
* *
* TksSlideMenu - Slide Menu Component *
* *
* https://github.com/gmurt/KernowSoftwareFMX *
* *
* Copyright 2015 Graham Murt *
* *
* email: [email protected] *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*******************************************************************************}
unit ksSlideMenu;
interface
{$I ksComponents.inc}
//{$DEFINE ADD_SAMPLE_MENU_ITEMS}
uses System.UITypes, FMX.Controls, FMX.Layouts, FMX.Objects, System.Classes,
FMX.Types, Generics.Collections, FMX.Graphics, System.UIConsts, FMX.Effects,
FMX.StdCtrls, System.Types, FMX.Forms, {ksTableView,} ksVirtualListView, ksTypes
{$IFDEF XE8_OR_NEWER}
,FMX.ImgList
{$ENDIF}
;
const
C_DEFAULT_MENU_WIDTH = 250;
C_DEFAULT_MENU_TOOLBAR_HEIGHT = 44;
C_DEFAULT_MENU_HEADER_HEIGHT = 30;
C_DEFAULT_MENU_HEADER_FONT_SIZE = 16;
C_DEFAULT_MENU_HEADER_TEXT_COLOR = claWhite;
C_DEFAULT_MENU_HEADER_COLOR = $FF323232;
C_DEFAULT_MENU_ITEM_HEIGHT = 50;
C_DEFAULT_MENU_FONT_SIZE = 14;
C_DEFAULT_MENU_TOOLBAR_FONT_SIZE = 14;
C_DEFAULT_MENU_SLIDE_SPEED = 0.15;
C_DEFAULT_MENU_SELECTED_COLOR = claWhite;
C_DEFAULT_MENU_SELECTED_FONT_COLOR = claWhite;
C_DEFAULT_MENU_FONT_COLOR = claBlack;
C_DEFAULT_MENU_BACKGROUND_COLOR = claWhite;
C_DEFAULT_MENU_TOOLBAR_COLOR = claWhite;
type
TSelectMenuItemEvent = procedure(Sender: TObject; AId: string) of object;
TksMenuPosition = (mpLeft, mpRight);
TKsMenuStyle = (msOverlap, msReveal);
TKsMenuTheme = (mtCustom, mtDarkGray, mtDarkBlue, mtDarkOrange, mtDarkGreen, mtLightGray, mtLightBlue, mtLightOrange, mtLightGreen);
TksSlideMenu = class;
TksSlideMenuItem = class
strict private
FText: string;
FId: string;
FFont: TFont;
FImage: TBitmap;
FHeight: integer;
FIndex: integer;
FIsHeader: Boolean;
public
constructor Create(AIndex: integer); virtual;
destructor Destroy; override;
property Height: integer read FHeight write FHeight;
property Index: integer read FIndex;
property Font: TFont read FFont write FFont;
property Image: TBitmap read FImage write FImage;
property ID: string read FId write FId;
property Text: string read FText write FText;
property IsHeader: Boolean read FIsHeader write FIsHeader;
end;
TksSlideMenuItems = class(TObjectList<TksSlideMenuItem>)
private
function AddMenuItem(AId, AText: string; AImage: TBitmap): TksSlideMenuItem;
function AddHeaderItem(AText: string): TksSlideMenuItem;
end;
TksSlideMenuAppearence = class(TPersistent)
private
[weak]FSlideMenu: TksSlideMenu;
FBackgroundColor: TAlphaColor;
FHeaderColor: TAlphaColor;
FHeaderFontColor: TAlphaColor;
FItemColor: TAlphaColor;
FFontColor: TAlphaColor;
FSelectedColor: TAlphaColor;
FSelectedFontColor: TAlphaColor;
FTheme: TKsMenuTheme;
FToolBarColor: TAlphaColor;
FAccessoryColor: TAlphaColor;
procedure SetHeaderColor(const Value: TAlphaColor);
procedure SetHeaderFontColor(const Value: TAlphaColor);
procedure SetItemColor(const Value: TAlphaColor);
procedure SetFontColor(const Value: TAlphaColor);
procedure SetSelectedColor(const Value: TAlphaColor);
procedure SetSelectedFontColor(const Value: TAlphaColor);
procedure SetTheme(const Value: TKsMenuTheme);
procedure SetToolBarColor(const Value: TAlphaColor);
procedure SetAccessoryColor(const Value: TAlphaColor);
procedure SetBackgroundColor(const Value: TAlphaColor);
public
constructor Create(ASlideMenu: TksSlideMenu); virtual;
published
property AccessoryColor: TAlphaColor read FAccessoryColor write SetAccessoryColor default claWhite;
property BackgroundColor: TAlphaColor read FBackgroundColor write SetBackgroundColor default $FF222222;
property HeaderColor: TAlphaColor read FHeaderColor write SetHeaderColor default C_DEFAULT_MENU_HEADER_COLOR;
property HeaderFontColor: TAlphaColor read FHeaderFontColor write SetHeaderFontColor default C_DEFAULT_MENU_HEADER_TEXT_COLOR;
property ItemColor: TAlphaColor read FItemColor write SetItemColor default $FF222222;
property FontColor: TAlphaColor read FFontColor write SetFontColor default claWhite;
property SelectedItemColor: TAlphaColor read FSelectedColor write SetSelectedColor default claRed;
property SelectedFontColor: TAlphaColor read FSelectedFontColor write SetSelectedFontColor default claWhite;
property ToolBarColor: TAlphaColor read FToolBarColor write SetToolBarColor default $FF323232;
property Theme: TKsMenuTheme read FTheme write SetTheme default mtDarkGray;
end;
TksSlideMenuToolbar = class(TPersistent)
private
[weak]FSlideMenu: TksSlideMenu;
FHeader: TImage;
FBitmap: TBitmap;
FText: string;
FFont: TFont;
FVisible: Boolean;
FHeight: integer;
procedure SetFont(const Value: TFont);
procedure SetBitmap(const Value: TBitmap);
function GetBitmap: TBitmap;
function GetFont: TFont;
function GetText: string;
procedure SetText(const Value: string);
public
constructor Create(AOwner: TComponent; ASlideMenu: TksSlideMenu); virtual;
destructor Destroy; override;
procedure UpdateToolbar;
property Height: integer read FHeight default C_DEFAULT_MENU_TOOLBAR_HEIGHT;
published
property Bitmap: TBitmap read GetBitmap write SetBitmap;
property Visible: Boolean read FVisible write FVisible default True;
property Text: string read GetText write SetText;
property Font: TFont read GetFont write SetFont;
end;
TksSlideMenuContainer = class(TLayout)
private
[weak]FSlideMenu: TksSlideMenu;
FToolBar: TksSlideMenuToolbar;
FListView: TksVirtualListView;
procedure CreateListView;
//function CalculateListViewHeight: single;
procedure ItemClick(Sender: TObject; AItem: TksVListItem);
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
property ListView: TksVirtualListView read FListView;
end;
[ComponentPlatformsAttribute(pidWin32 or pidWin64 or
{$IFDEF XE8_OR_NEWER} pidiOSDevice32 or pidiOSDevice64
{$ELSE} pidiOSDevice {$ENDIF} or pidiOSSimulator or pidAndroid)]
TksSlideMenu = class(TksComponent)
strict private
FAppearence: TksSlideMenuAppearence;
FMenu: TksSlideMenuContainer;
FItems: TksSlideMenuItems;
{$IFNDEF ANDROID}
FShadowLeft: TImage;
FShadowRight: TImage;
{$ENDIF}
FBackground: TRectangle;
FFormImage: TImage;
FMenuImage: TImage;
FFont: TFont;
FHeaderFont: TFont;
FShowing: Boolean;
FTopPadding: integer;
FMenuPosition: TksMenuPosition;
FMenuStyle: TKsMenuStyle;
FSlideSpeed: Single;
FOnSelectMenuItemEvent: TSelectMenuItemEvent;
FAfterSelectMenuItemEvent: TSelectMenuItemEvent;
FOnAfterSlideOut: TNotifyEvent;
FOnBeforeSlideOut: TNotifyEvent;
{$IFDEF XE8_OR_NEWER}
FImages: TCustomImageList;
{$ENDIF}
FHeaderHeight: integer;
FItemHeight: integer;
FToggleButton: TCustomButton;
FAnimating: Boolean;
FHeaderTextAlign: TTextAlign;
FItemTextAlign: TTextAlign;
FSelectFirstItem: Boolean;
FBeforeShow: TNotifyEvent;
FAfterShow: TNotifyEvent;
FBeforeHide: TNotifyEvent;
FAfterHide: TNotifyEvent;
procedure SetTopPadding(const Value: integer);
procedure DoBackgroundClick(Sender: TObject);
//procedure FadeBackground;
//procedure UnfadeBackground;
procedure GenerateFormImage(AXpos: single);
procedure RemoveFormImage;
{$IFNDEF ANDROID}
procedure GenerateShadows;
{$ENDIF}
procedure HidePickers;
procedure SetToggleButton(const Value: TCustomButton);
procedure DoToggleButtonClick(Sender: TObject);
private
FMenuIndex: integer;
procedure MenuItemSelected(Sender: TObject; AItem: TksVListItem);
//procedure SetItemIndex(const Value: integer);
procedure SwitchMenuToImage;
procedure SwitchImageToMenu;
function GetToolbar: TksSlideMenuToolbar;
//function GetToolbarHeight: integer;
procedure SetToolbar(const Value: TksSlideMenuToolbar);
procedure SetMenuIndex(const Value: integer);
function GetMenuItemCount: integer;
function GetColorOrDefault(AColor, ADefaultIfNull: TAlphaColor): TAlphaColor;
procedure UpdateSelectedItem;
protected
procedure Notification(AComponent: TComponent; Operation: TOperation); override;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure Clear;
procedure AddHeader(AText: string);
function AddMenuItem(AId, AText: string; const AImageIndex: integer = -1): TksSlideMenuItem; overload;
function AddMenuItem(AId, AText: string; AImage: TBitmap): TksSlideMenuItem; overload;
procedure ToggleMenu;
procedure UpdateMenu;
procedure RefreshMenu;
property Showing: Boolean read FShowing;
property MenuIndex: integer read FMenuIndex write SetMenuIndex;
property MenuItemCount: integer read GetMenuItemCount;
published
property Appearence: TksSlideMenuAppearence read FAppearence write FAppearence;
property Font: TFont read FFont write FFont;
property HeaderFont: TFont read FHeaderFont write FHeaderFont;
{$IFDEF XE8_OR_NEWER}
property Images: TCustomImageList read FImages write FImages;
{$ENDIF}
property ItemHeight: integer read FItemHeight write FItemHeight default C_DEFAULT_MENU_ITEM_HEIGHT;
property HeaderHeight: integer read FHeaderHeight write FHeaderHeight default C_DEFAULT_MENU_HEADER_HEIGHT;
property TopPadding: integer read FTopPadding write SetTopPadding default 0;
property MenuPosition: TksMenuPosition read FMenuPosition write FMenuPosition default mpLeft;
property MenuStyle: TKsMenuStyle read FMenuStyle write FMenuStyle default msReveal;
property SlideSpeed: Single read FSlideSpeed write FSlideSpeed;
property OnSelectMenuItemEvent: TSelectMenuItemEvent read FOnSelectMenuItemEvent write FOnSelectMenuItemEvent;
property AfterSelectItemEvent: TSelectMenuItemEvent read FAfterSelectMenuItemEvent write FAfterSelectMenuItemEvent;
property Toolbar: TksSlideMenuToolbar read GetToolbar write SetToolbar;
property ToggleButton: TCustomButton read FToggleButton write SetToggleButton;
property OnAfterSlideOut: TNotifyEvent read FOnAfterSlideOut write FOnAfterSlideOut;
property OnBeforeSlideOut: TNotifyEvent read FOnBeforeSlideOut write FOnBeforeSlideOut;
property HeaderTextAlign: TTextAlign read FHeaderTextAlign write FHeaderTextAlign default TTextAlign.Leading;
property ItemTextAlign: TTextAlign read FItemTextAlign write FItemTextAlign default TTextAlign.Leading;
property SelectFirstItem: Boolean read FSelectFirstItem write FSelectFirstItem default True;
property BeforeShow: TNotifyEvent read FBeforeShow write FBeforeShow;
property AfterShow: TNotifyEvent read FAfterShow write FAfterShow;
property BeforeHide: TNotifyEvent read FBeforeHide write FBeforeHide;
property AfterHide: TNotifyEvent read FAfterHide write FAfterHide;
end;
{$R *.dcr}
procedure Register;
procedure ReplaceOpaqueColor(ABmp: TBitmap; Color : TAlphaColor);
var
SlideMenuAnimating: Boolean;
implementation
uses FMX.Platform, SysUtils, FMX.Ani, FMX.Pickers, Math,
FMX.ListView.Types, FMX.Utils, ksCommon;
procedure Register;
begin
RegisterComponents('Kernow Software FMX', [TksSlideMenu]);
end;
procedure ReplaceOpaqueColor(ABmp: TBitmap; Color : TAlphaColor);
var
x,y: Integer;
AMap: TBitmapData;
PixelColor: TAlphaColor;
PixelWhiteColor: TAlphaColor;
C: PAlphaColorRec;
begin
if ABmp.Map(TMapAccess.ReadWrite, AMap) then
try
AlphaColorToPixel(Color , @PixelColor, AMap.PixelFormat);
AlphaColorToPixel(claWhite, @PixelWhiteColor, AMap.PixelFormat);
for y := 0 to ABmp.Height - 1 do
begin
for x := 0 to ABmp.Width - 1 do
begin
C := @PAlphaColorArray(AMap.Data)[y * (AMap.Pitch div 4) + x];
if (C^.Color<>claWhite) and (C^.A>0) then
C^.Color := PremultiplyAlpha(MakeColor(PixelColor, C^.A / $FF));
end;
end;
finally
ABmp.Unmap(AMap);
end;
end;
{ TSlideMenu }
procedure TksSlideMenu.AddHeader(AText: string);
var
AResult: TksSlideMenuItem;
begin
AResult := FItems.AddHeaderItem(AText);
AResult.Font.Assign(FFont);
end;
function TksSlideMenu.AddMenuItem(AId, AText: string; AImage: TBitmap): TksSlideMenuItem;
begin
Result := FItems.AddMenuItem(AId, AText, AImage);
Result.Font.Assign(FFont);
//UpdateMenu;
end;
function TksSlideMenu.AddMenuItem(AId, AText: string; const AImageIndex: integer = -1): TksSlideMenuItem;
var
AImage: TBitmap;
ASize: TSizeF;
begin
AImage := nil;
ASize.Width := 64;
ASize.Height := 64;
{$IFDEF XE8_OR_NEWER}
if Images <> nil then
AImage := Images.Bitmap(ASize, AImageIndex);
{$ENDIF}
Result := AddMenuItem(AId, AText, AImage);
end;
procedure TksSlideMenu.Clear;
begin
FItems.Clear;
UpdateMenu;
end;
constructor TksSlideMenu.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FFont := TFont.Create;
FHeaderFont := TFont.Create;
FItems := TksSlideMenuItems.Create;
FAppearence := TksSlideMenuAppearence.Create(Self);
FMenu := TksSlideMenuContainer.Create(Self);
FFormImage := TImage.Create(Self);
FBackground := TRectangle.Create(Self);
FHeaderTextAlign := TTextAlign.Leading;
FItemTextAlign := TTextAlign.Leading;
FShowing := False;
FTopPadding := 0;
FFont.Size := C_DEFAULT_MENU_FONT_SIZE;
FHeaderFont.Size := C_DEFAULT_MENU_HEADER_FONT_SIZE;
FFormImage.OnClick := DoBackgroundClick;
FMenuPosition := mpLeft;
FMenuStyle := msReveal;
FSlideSpeed := C_DEFAULT_MENU_SLIDE_SPEED;
FHeaderHeight := C_DEFAULT_MENU_HEADER_HEIGHT;
FItemHeight := C_DEFAULT_MENU_ITEM_HEIGHT;
//FItemIndex := -1;
{$IFNDEF ANDROID}
FShadowLeft := TImage.Create(Self);
FShadowRight := TImage.Create(Self);
GenerateShadows;
FSelectFirstItem := True;
{$ENDIF}
FAnimating := False;
FMenuIndex := -1;
end;
destructor TksSlideMenu.Destroy;
begin
FreeAndNil(FFont);
FreeAndNil(FHeaderFont);
FreeAndNil(FAppearence);
FreeAndNil(FItems);
inherited;
end;
procedure TksSlideMenu.DoBackgroundClick(Sender: TObject);
begin
ToggleMenu;
end;
procedure TksSlideMenu.DoToggleButtonClick(Sender: TObject);
begin
ToggleMenu;
end;
procedure TksSlideMenu.GenerateFormImage(AXpos: single);
var
AScale: single;
ABmp: TBitmap;
ABmp2: TBitmap;
AForm: TForm;
AOwner : TComponent;
AWidth : single;
AHeight: single;
ATopLeft : TPointF;
//AFormTopLeft : TPointF;
begin
AOwner := Owner;
if (AOwner is TForm) then
begin
AWidth := (AOwner as TForm).Width;
AHeight := (AOwner as TForm).Height;
ATopLeft := PointF(0,0);
end
else if (AOwner is TFrame) then
begin
AWidth := (AOwner as TFrame).Width;
AHeight := (AOwner as TFrame).Height;
ATopLeft := PointF(0,0);
while not (AOwner is TForm) do
begin
ATopLeft := ATopLeft + (AOwner as TFrame).LocalToAbsolute(PointF(0,0));
AOwner := AOwner.Owner;
end;
if not (AOwner is TForm) then
exit;
end
else
exit;
AForm := (AOwner as TForm);
FFormImage.Visible := false;
FMenu.Visible := False;
ABmp := TBitmap.Create;
try
AScale := GetScreenScale;
ABmp.BitmapScale := AScale;
ABmp.Width := Round((ATopLeft.x + AWidth ) * AScale);
ABmp.Height := Round((ATopLeft.y + AHeight) * AScale);
ABmp.Canvas.BeginScene;
AForm.PaintTo(ABmp.Canvas);
ABmp.Canvas.EndScene;
ABmp.Canvas.BeginScene;
ABmp.Canvas.Stroke.Color := claBlack;
ABmp.Canvas.StrokeThickness := 1;
ABmp.Canvas.DrawLine(PointF(0, 0), PointF(0, ABmp.Height), 1);
{ABmp.Canvas.Fill.Color := claFuchsia;
ABmp.Canvas.FillEllipse(RectF(0, 0, 100, 100), 1);}
ABmp.Canvas.EndScene;
if (ATopLeft.x>0) or (ATopLeft.y>0) then
begin
ABmp2 := TBitmap.Create;
ABmp2.BitmapScale := AScale;
ABmp2.Width := Round(AWidth * AScale);
ABmp2.Height := Round(AHeight * AScale);
ABmp2.Canvas.BeginScene;
ABmp2.Canvas.DrawBitmap(ABmp,
RectF(Round(ATopLeft.x * AScale),Round(ATopLeft.y * AScale),ABmp.Width,ABmp.Height),
RectF(0,0,AWidth,AHeight),
1,true);
ABmp2.Canvas.EndScene;
ABmp.Free();
ABmp := ABmp2;
end;
FFormImage.Width := Round(AWidth);
FFormImage.Height := Round(AHeight);
FFormImage.Bitmap.Assign(ABmp);
finally
FreeAndNil(ABmp);
end;
FFormImage.Position.Y := 0;
FFormImage.Position.X := AXpos;
{$IFNDEF ANDROID}
FShadowLeft.Position.Y := 0;
FShadowLeft.Position.X := 0-FShadowLeft.Width;
FFormImage.AddObject(FShadowLeft);
FShadowRight.Position.Y := 0;
FShadowRight.Position.X := FFormImage.Width;
FFormImage.AddObject(FShadowRight);
{$ENDIF}
TfmxObject(Owner).AddObject(FFormImage);
FFormImage.Visible := True;
FMenu.Visible := True;
Application.ProcessMessages;
end;
procedure TksSlideMenu.RefreshMenu;
var
AWidth: single;
begin
if (FAnimating) or (not FShowing) then
Exit;
if (Owner is TForm) then
AWidth := (Owner as TForm).Width
else
if (Owner is TFrame) then
AWidth := (Owner as TFrame).Width
else
AWidth := 0;
HidePickers;
GenerateFormImage(FFormImage.Position.x);
if (Owner is TForm) then
FMenu.Height := (Owner as TForm).ClientHeight
else
if (Owner is TFrame) then
FMenu.Height := (Owner as TFrame).Height
else
FMenu.Height := 0;
case FMenuPosition of
mpLeft: FMenu.Position.x := 0;
mpRight:FMenu.Position.x := AWidth - C_DEFAULT_MENU_WIDTH;
end;
if FMenu.FListView.Items.Count = 0 then
UpdateMenu;
end;
procedure TksSlideMenu.RemoveFormImage;
begin
(Owner as TfmxObject).RemoveObject(FFormImage);
end;
{$IFNDEF ANDROID}
procedure TksSlideMenu.GenerateShadows;
{var
AScale: single;
ABmp: TBitmap;
AHeight : Single;}
begin
{ if (Owner is TForm) then
AHeight := (Owner as TForm).Height
else if (Owner is TFrame) then
AHeight := (Owner as TFrame).Height
else
exit;
ABmp := TBitmap.Create;
try
AScale := GetScreenScale;
ABmp.Width := Round(16 * AScale);
ABmp.Height := Round(AHeight * AScale);
ABmp.Canvas.BeginScene;
ABmp.Canvas.Fill.Kind := TBrushKind.Gradient;
ABmp.Canvas.Fill.Gradient.Color := claNull;
ABmp.Canvas.Fill.Gradient.Color1 := $AA000000;
ABmp.Canvas.Fill.Gradient.StartPosition.X := 0;
ABmp.Canvas.Fill.Gradient.StartPosition.Y := 1;
ABmp.Canvas.Fill.Gradient.StopPosition.X := 1;
ABmp.Canvas.FillRect(RectF(0, 0, ABmp.Width, ABmp.Height), 0, 0, [], 1);
ABmp.Canvas.EndScene;
FShadowLeft.Width := 16;
FShadowLeft.Height := Round(AHeight);
FShadowLeft.Bitmap.Assign(ABmp);
finally
FreeAndNil(ABmp);
end;
ABmp := TBitmap.Create;
try
AScale := GetScreenScale;
ABmp.Width := Round(16 * AScale);
ABmp.Height := Round(AHeight * AScale);
ABmp.Canvas.BeginScene;
ABmp.Canvas.Fill.Kind := TBrushKind.Gradient;
ABmp.Canvas.Fill.Gradient.Color := $AA000000;
ABmp.Canvas.Fill.Gradient.Color1 := claNull;
ABmp.Canvas.Fill.Gradient.StartPosition.X := 0;
ABmp.Canvas.Fill.Gradient.StartPosition.Y := 1;
ABmp.Canvas.Fill.Gradient.StopPosition.X := 1;
ABmp.Canvas.FillRect(RectF(0, 0, ABmp.Width, ABmp.Height), 0, 0, [], 1);
ABmp.Canvas.EndScene;
FShadowRight.Width := 16;
FShadowRight.Height := Round(AHeight);
FShadowRight.Bitmap.Assign(ABmp);
finally
FreeAndNil(ABmp);
end; }
end;
{$ENDIF}
function TksSlideMenu.GetMenuItemCount: integer;
var
ICount: integer;
lv: TksVirtualListView;
begin
Result := 0;
lv := FMenu.FListView;
for ICount := 0 to lv.Items.Count-1 do
begin
if lv.Items[ICount].Purpose = TksVListItemPurpose.None then
Result := Result + 1;
end;
end;
function TksSlideMenu.GetToolbar: TksSlideMenuToolbar;
begin
Result := FMenu.FToolBar;
end;
{
function TksSlideMenu.GetToolbarHeight: integer;
begin
Result := 0;
if Toolbar.Visible then
Result := C_DEFAULT_MENU_TOOLBAR_HEIGHT;
end; }
procedure TksSlideMenu.HidePickers;
var
PickerService: IFMXPickerService;
begin
inherited;
if TPlatformServices.Current.SupportsPlatformService(IFMXPickerService, PickerService) then
PickerService.CloseAllPickers;
end;
procedure TksSlideMenu.MenuItemSelected(Sender: TObject; AItem: TksVListItem);
begin
if Assigned(FOnSelectMenuItemEvent) then
FOnSelectMenuItemEvent(Self, AItem.TagStr);
UpdateSelectedItem;
GenerateFormImage(FFormImage.Position.X);
ToggleMenu;
if Assigned(FAfterSelectMenuItemEvent) then
FAfterSelectMenuItemEvent(Self, AItem.TagStr);
end;
procedure TksSlideMenu.Notification(AComponent: TComponent; Operation: TOperation);
begin
inherited;
if (AComponent = FToggleButton) and (Operation = TOperation.opRemove) then
FToggleButton := nil;
end;
function TksSlideMenu.GetColorOrDefault(AColor, ADefaultIfNull: TAlphaColor): TAlphaColor;
begin
Result := AColor;
if Result = claNull then
Result := ADefaultIfNull;
end;
procedure TksSlideMenu.UpdateMenu;
var
ICount: integer;
AItem: TksSlideMenuItem;
ARow: TksVListItem;
lv: TksVirtualListView;
ASelectedColor: TAlphaColor;
AFontColor, AHeaderFontColor: TAlphaColor;
begin
if FMenu.ListView = nil then
Exit;
Application.ProcessMessages;
lv := FMenu.FListView;
lv.Position.X := 0;
lv.Repaint;
//lv.Position.Y := GetToolbarHeight;;
lv.Width := C_DEFAULT_MENU_WIDTH;
//FMenu
FMenu.Width := C_DEFAULT_MENU_WIDTH;
AFontColor := GetColorOrDefault(FAppearence.FontColor, C_DEFAULT_MENU_FONT_COLOR);
AHeaderFontColor := GetColorOrDefault(FAppearence.HeaderFontColor, C_DEFAULT_MENU_HEADER_TEXT_COLOR);
ASelectedColor := GetColorOrDefault(FAppearence.SelectedItemColor, C_DEFAULT_MENU_SELECTED_COLOR);
lv.Appearence.Background := GetColorOrDefault(FAppearence.BackgroundColor, C_DEFAULT_MENU_BACKGROUND_COLOR);
lv.Appearence.ItemBackground := GetColorOrDefault(FAppearence.ItemColor, C_DEFAULT_MENU_BACKGROUND_COLOR);
lv.Appearence.HeaderColor := GetColorOrDefault(FAppearence.HeaderColor, C_DEFAULT_MENU_HEADER_COLOR);
lv.Appearence.SeparatorColor := GetColorOrDefault(FAppearence.HeaderColor, C_DEFAULT_MENU_HEADER_COLOR);
lv.Appearence.SelectedColor := ASelectedColor;
lv.Appearence.SelectedFontColor := FAppearence.SelectedFontColor;
///lv.ItemImageSize := 24;
lv.HeaderHeight := FHeaderHeight;
lv.ItemHeight := FItemHeight;
lv.BeginUpdate;
try
lv.Items.Clear;
{$IFDEF ADD_SAMPLE_MENU_ITEMS}
if FItems.Count = 0 then
begin
// add some sample items...
AddHeader('SAMPLE HEADER 0');
AddMenuItem('', 'Menu Item 1');
AddMenuItem('', 'Menu Item 2');
AddHeader('SAMPLE HEADER 1');
AddMenuItem('', 'Menu Item 3');
AddMenuItem('', 'Menu Item 4');
AddMenuItem('', 'Menu Item 5');
AddHeader('SAMPLE HEADER 2');
AddMenuItem('', 'Menu Item 6');
AddMenuItem('', 'Menu Item 7');
AddMenuItem('', 'Menu Item 8');
AddMenuItem('', 'Menu Item 9');
AddMenuItem('', 'Menu Item 10');
end;
{$ENDIF}
for ICount := 0 to FItems.Count-1 do
begin
AItem := FItems[ICount];
if AItem.IsHeader then
begin
ARow := lv.Items.AddHeader(AItem.Text);
ARow.Title.Font.Assign(FHeaderFont);
ARow.Title.TextSettings.FontColor := AHeaderFontColor;
ARow.Title.TextSettings.HorzAlign := FHeaderTextAlign;
end
else
begin
ARow := lv.Items.Add(AItem.Text, '', '', atMore);
if AItem.Image.IsEmpty = False then
ARow.Image.Bitmap := AItem.Image;
ARow.TagStr := AItem.ID;
//ARow.Accessory.OwnsBitmap := True;
//ARow.Accessory.Color := FAppearence.AccessoryColor;
ARow.Title.Font.Assign(FFont);
ARow.Title.TextSettings.FontColor := AFontColor;
ARow.Title.TextSettings.HorzAlign:= FItemTextAlign;
end;
end;
finally
lv.EndUpdate;
end;
lv.RecalcAbsoluteNow;
MenuIndex := FMenuIndex;
if (lv.ItemIndex = -1) and (FSelectFirstItem) then
begin
lv.ItemIndex := 0;
{for ICount := 0 to lv.Items.Count-1 do
begin
if lv.Items[ICount].Purpose = TksVListItemPurpose.None then
begin
lv.ItemIndex := ICount;
UpdateSelectedItem;
Break;
end;
end; }
end;
end;
procedure TksSlideMenu.UpdateSelectedItem;
var
ICount: integer;
AItem: TksVListItem;
begin
FMenu.ListView.BeginUpdate;
try
for ICount := 0 to FMenu.FListView.Items.Count-1 do
begin
AItem := FMenu.FListView.Items[ICount];
if AItem.Index = FMenu.ListView.ItemIndex then
//if i.ID = AId then
begin
//AItem.Title.TextSettings.FontColor := FAppearence.SelectedFontColor;
//AItem.Accessory.Color := claBlue;
//AItem.Background := FAppearence.SelectedItemColor;
end
else
begin
//AItem.Title.TextSettings.FontColor := FAppearence.FontColor;
//AItem.Accessory.Color := claRed;
//AItem.Background := FAppearence.ItemColor;
end;
AItem.ClearCache;
AItem.CacheItem;
end;
finally
FMenu.ListView.EndUpdate;
end;
Application.ProcessMessages;
end;
procedure TksSlideMenu.SetMenuIndex(const Value: integer);
var
ICount: integer;
AIndex: integer;
lv: TksVirtualListView;
begin
AIndex := -1;
lv := FMenu.FListView;
for ICount := 0 to lv.Items.Count-1 do
begin
if lv.Items[ICount].Purpose = TksVListItemPurpose.None then
begin
Inc(AIndex);
if AIndex = Value then
begin
lv.ItemIndex := ICount;
Exit;
end;
end;
end;
FMenuIndex := Value;
end;
procedure TksSlideMenu.SetToggleButton(const Value: TCustomButton);
begin
FToggleButton := Value;
FToggleButton.OnClick := DoToggleButtonClick;
end;
procedure TksSlideMenu.SetToolbar(const Value: TksSlideMenuToolbar);
begin
FMenu.FToolBar := Value;
end;
procedure TksSlideMenu.SetTopPadding(const Value: integer);
begin
FTopPadding := Value;
end;
procedure TksSlideMenu.SwitchMenuToImage;
var
ABmp: TBitmap;
ABottom: single;
AWidth: single;
AClientHeight: single;
begin
if (Owner is TForm) then
begin
AWidth := (Owner as TForm).Width;
AClientHeight := (Owner as TForm).ClientHeight;
end
else if (Owner is TFrame) then
begin
AWidth := (Owner as TFrame).Width;
AClientHeight := (Owner as TFrame).Height
end
else
exit;
ABmp := TBitmap.Create(Round(C_DEFAULT_MENU_WIDTH * GetScreenScale), Round(AClientHeight * GetScreenScale));
try
FMenuImage := TImage.Create(Owner);
FMenuImage.Width := C_DEFAULT_MENU_WIDTH;
FMenuImage.Height := AClientHeight;
case FMenuPosition of
mpLeft: FMenuImage.Position.X := 0;
mpRight: FMenuImage.Position.X := AWidth - C_DEFAULT_MENU_WIDTH;
end;
ABmp.Canvas.BeginScene;
ABmp.BitmapScale := GetScreenScale;
FMenu.PaintTo(ABmp.Canvas, RectF(0, 0, ABmp.Width, ABmp.Height));
ABmp.Canvas.EndScene;
ABmp.Canvas.BeginScene;
ABottom := ABmp.Height;// Height; //(GetToolbarHeight + FMenu.CalculateListViewHeight)*GetScreenScale;
ABmp.Canvas.Fill.Color := FAppearence.ItemColor;
ABmp.Canvas.FillRect(RectF(0, ABottom, C_DEFAULT_MENU_WIDTH*GetScreenScale, ABmp.Height), 0, 0, AllCorners, 1, ABmp.Canvas.Fill);
ABmp.Canvas.EndScene;
FMenuImage.Bitmap := ABmp;
finally
FreeAndNil(ABmp);
end;
end;
procedure TksSlideMenu.SwitchImageToMenu;
var
AObject: TfmxObject;
begin
AObject := (Owner as TfmxObject);
AObject.InsertObject(AObject.ChildrenCount-1, FMenu);
AObject.RemoveObject(FMenuImage);
FMenu.HitTest := True;
end;
procedure TksSlideMenu.ToggleMenu;
var
AStartXPos: single;
ANewXPos: single;
AObject: TfmxObject;
AWidth: single;
begin
if FAnimating then
Exit;
UpdateSelectedItem;
if FShowing = False then
begin
if Assigned(FBeforeShow) then
FBeforeShow(Self);
if Assigned(FOnBeforeSlideOut) then
FOnBeforeSlideOut(Self);
end
else
begin
if Assigned(FBeforeHide) then
FBeforeHide(Self);
end;
FAnimating := True;
try
if (FShowing = False) then
begin
//GenerateShadows;
FMenu.FToolBar.UpdateToolbar;
//FMenu.UpdateSelectedItem;
end;
FMenu.HitTest := False;
AObject := (Owner as TfmxObject);
if (Owner is TForm) then
AWidth := (Owner as TForm).Width
else if (Owner is TFrame) then
AWidth := (Owner as TFrame).Width
else
AWidth := 0;
HidePickers;
if FShowing = False then
begin
AStartXPos := 0;
ANewXPos := 0;
case FMenuPosition of
mpLeft: ANewXPos := C_DEFAULT_MENU_WIDTH;
mpRight: ANewXPos := 0-C_DEFAULT_MENU_WIDTH;
end;