1086 lines
31 KiB
ObjectPascal

{
Double Commander components
-------------------------------------------------------------------------
Toolbar panel class
Copyright (C) 2006-2010 Koblov Alexander (Alexx2000@mail.ru)
contributors:
2012 Przemyslaw Nagay (cobines@gmail.com)
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
in a file called COPYING along with this program; if not, write to
the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA
02139, USA.
}
unit KASToolBar;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, LResources, Forms, Controls, ComCtrls,
Graphics, Dialogs, ExtCtrls, Buttons, FileUtil, Menus,
DCXmlConfig, KASToolItems, LCLVersion;
type
TOnToolButtonClick = procedure (Sender: TObject) of object;
TOnToolButtonMouseUpDown = procedure (Sender: TObject; Button: TMouseButton; Shift:TShiftState; X,Y:Integer) of object;
TOnToolButtonMouseMove = procedure (Sender: TObject; Shift:TShiftState; X,Y:Integer; NumberOfButton: Integer) of object;
TOnToolButtonDragOver = procedure(Sender, Source: TObject; X,Y: Integer;
State: TDragState; var Accept: Boolean; NumberOfButton: Integer) of object;
TOnToolButtonDragDrop = procedure(Sender, Source: TObject; X, Y: Integer) of object;
TOnToolButtonEndDrag = procedure(Sender, Target: TObject; X,Y: Integer) of object;
TOnLoadButtonGlyph = function (ToolItem: TKASToolItem; iIconSize: Integer; clBackColor: TColor): TBitmap of object;
TOnToolItemExecute = procedure (ToolItem: TKASToolItem) of object;
TOnConfigLoadItem = function (Config: TXmlConfig; Node: TXmlNode): TKASToolItem of object;
TOnToolItemShortcutsHint = function (ToolItem: TKASNormalItem): String of object;
TKASToolBar = class;
{ TKASToolButton }
TKASToolButton = class(TSpeedButton)
private
FToolItem: TKASToolItem;
function GetToolBar: TKASToolBar;
protected
procedure CalculatePreferredSize(var PreferredWidth,
PreferredHeight: integer; WithThemeSpace: Boolean); override;
public
constructor Create(AOwner: TComponent; Item: TKASToolItem); reintroduce;
property ToolBar: TKASToolBar read GetToolBar;
property ToolItem: TKASToolItem read FToolItem;
end;
{ TKASToolDivider }
TKASToolDivider = class(TKASToolButton)
protected
procedure CalculatePreferredSize(var PreferredWidth,
PreferredHeight: integer; WithThemeSpace: Boolean); override;
procedure Paint; override;
end;
{ TKASToolBar }
TKASToolBar = class(TToolBar, IToolOwner)
private
FButtonHeight: Integer;
FButtonWidth: Integer;
FFlat: Boolean;
FGlyphSize: Integer;
FRadioToolBar: Boolean;
FRowHeight: Integer;
FShowDividerAsButton: Boolean;
FToolItemExecutors: TFPList;
FToolItems: TKASToolBarItems;
FToolPopupMenu: TPopupMenu;
FOwnsToolItems: Boolean;
{$if lcl_fullversion < 1010000}
FUpdateCount: Integer;
{$endif}
FOnToolButtonClick: TOnToolButtonClick;
FOnToolButtonMouseDown: TOnToolButtonMouseUpDown;
FOnToolButtonMouseUp: TOnToolButtonMouseUpDown;
FOnToolButtonMouseMove: TOnToolButtonMouseMove;
FOnToolButtonDragOver: TOnToolButtonDragOver;
FOnToolButtonDragDrop: TOnToolButtonDragDrop;
FOnToolButtonEndDrag: TOnToolButtonEndDrag;
FOnLoadButtonGlyph: TOnLoadButtonGlyph;
FOnToolItemExecute: TOnToolItemExecute;
FOnToolItemShortcutsHint: TOnToolItemShortcutsHint;
FKASToolBarFlags: TToolBarFlags;
FResizeButtonsNeeded: Boolean;
procedure AssignToolButtonProperties(ToolButton: TKASToolButton);
procedure ClearExecutors;
function CreateButton(Item: TKASToolItem): TKASToolButton;
function ExecuteToolItem(Item: TKASToolItem): Boolean;
function FindButton(Button: TKASToolButton): Integer;
function GetChangePath: String;
function GetEnvVar: String;
function GetToolItemShortcutsHint(Item: TKASToolItem): String;
function LoadBtnIcon(IconPath: String): TBitMap;
procedure DrawLinkIcon(Image: TBitMap);
function GetButton(Index: Integer): TKASToolButton;
procedure InsertButton(InsertAt: Integer; ToolButton: TKASToolButton);
procedure SetButtonHeight(const AValue: Integer);
procedure SetButtonWidth(const AValue: Integer);
procedure SetChangePath(const AValue: String);
procedure SetEnvVar(const AValue: String);
procedure SetFlat(const AValue: Boolean);
procedure SetGlyphSize(const AValue: Integer);
procedure ShowMenu(ToolButton: TKASToolButton);
procedure ToolButtonClick(Sender: TObject);
procedure ToolButtonMouseDown(Sender: TObject; Button: TMouseButton; Shift:TShiftState; X,Y:Integer);
procedure ToolButtonMouseUp(Sender: TObject; Button: TMouseButton; Shift:TShiftState; X,Y:Integer);
procedure ToolButtonMouseMove(Sender: TObject; Shift:TShiftState; X,Y:Integer);
procedure ToolButtonDragOver(Sender, Source: TObject; X,Y: Integer; State: TDragState; var Accept: Boolean);
procedure ToolButtonDragDrop(Sender, Source: TObject; X,Y: Integer);
procedure ToolButtonEndDrag(Sender, Target: TObject; X, Y: Integer);
procedure ToolItemLoaded(Item: TKASToolItem);
procedure ToolMenuClicked(Sender: TObject);
procedure UpdateButtonsTags;
protected
procedure CalculatePreferredSize(var PreferredWidth,
PreferredHeight: Integer; WithThemeSpace: Boolean); override;
procedure ControlsAligned; override;
procedure FontChanged(Sender: TObject); override;
function WrapButtons(UseWidth: integer;
out NewWidth, NewHeight: Integer; Simulate: boolean): Boolean;
procedure ResizeButtons;
public
constructor Create(TheOwner: TComponent); override;
destructor Destroy; override;
function AddButton(Item: TKASToolItem): TKASToolButton;
procedure AddToolItemExecutor(ToolItemClass: TKASToolItemClass;
ExecuteFunction: TOnToolItemExecute);
procedure Clear;
procedure ClickItem(ToolItemID: String); overload;
function InsertButton(InsertAt: Integer; Item: TKASToolItem): TKASToolButton;
function InsertButton(InsertAt: TKASToolButton; Item: TKASToolItem): TKASToolButton;
procedure MoveButton(ButtonIndex, MovePosition: Integer);
procedure MoveButton(SourceButton: TKASToolButton; TargetToolBar: TKASToolBar; InsertAt: TKASToolButton);
procedure RemoveButton(Index: Integer);
procedure RemoveButton(Button: TKASToolButton);
procedure RemoveToolItemExecutor(ExecuteFunction: TOnToolItemExecute);
procedure UncheckAllButtons;
procedure UpdateIcon(ToolButton: TKASToolButton);
procedure UseItems(AItems: TKASToolBarItems);
procedure LoadConfiguration(Config: TXmlConfig; RootNode: TXmlNode;
Loader: TKASToolBarLoader);
procedure SaveConfiguration(Config: TXmlConfig; RootNode: TXmlNode);
procedure BeginUpdate; override;
procedure EndUpdate; override;
procedure SetButtonSize(NewButtonWidth, NewButtonHeight: Integer);
property Buttons[Index: Integer]: TKASToolButton read GetButton;
property RowHeight: Integer read FRowHeight;
published
property OnLoadButtonGlyph : TOnLoadButtonGlyph read FOnLoadButtonGlyph write FOnLoadButtonGlyph;
property OnToolButtonClick: TOnToolButtonClick read FOnToolButtonClick write FOnToolButtonClick;
property OnToolButtonMouseDown: TOnToolButtonMouseUpDown read FOnToolButtonMouseDown write FOnToolButtonMouseDown;
property OnToolButtonMouseUp: TOnToolButtonMouseUpDown read FOnToolButtonMouseUp write FOnToolButtonMouseUp;
property OnToolButtonMouseMove: TOnToolButtonMouseMove read FOnToolButtonMouseMove write FOnToolButtonMouseMove;
property OnToolButtonDragDrop: TOnToolButtonDragDrop read FOnToolButtonDragDrop write FOnToolButtonDragDrop;
property OnToolButtonEndDrag: TOnToolButtonEndDrag read FOnToolButtonEndDrag write FOnToolButtonEndDrag;
property OnToolButtonDragOver: TOnToolButtonDragOver read FOnToolButtonDragOver write FOnToolButtonDragOver;
property OnToolItemExecute: TOnToolItemExecute read FOnToolItemExecute write FOnToolItemExecute;
property OnToolItemShortcutsHint: TOnToolItemShortcutsHint read FOnToolItemShortcutsHint write FOnToolItemShortcutsHint;
property RadioToolBar: Boolean read FRadioToolBar write FRadioToolBar default False;
property Flat: Boolean read FFlat write SetFlat default False;
property GlyphSize: Integer read FGlyphSize write SetGlyphSize;
property ButtonHeight: Integer read FButtonHeight write SetButtonHeight default 22;
property ButtonWidth: Integer read FButtonWidth write SetButtonWidth default 23;
property ShowDividerAsButton: Boolean read FShowDividerAsButton write FShowDividerAsButton default False;
property ChangePath: String read GetChangePath write SetChangePath;
property EnvVar: String read GetEnvVar write SetEnvVar;
end;
procedure Register;
implementation
uses
Themes, types, math, DCOSUtils;
type
PToolItemExecutor = ^TToolItemExecutor;
TToolItemExecutor = record
ToolItemClass: TKASToolItemClass;
ToolItemExecute: TOnToolItemExecute;
end;
procedure Register;
begin
RegisterComponents('KASComponents',[TKASToolBar]);
end;
{ TKASToolBar }
procedure TKASToolBar.InsertButton(InsertAt: Integer; ToolButton: TKASToolButton);
begin
if InsertAt < 0 then
InsertAt:= 0;
if InsertAt > ButtonList.Count then
InsertAt:= ButtonList.Count;
ButtonList.Insert(InsertAt, ToolButton);
FToolItems.Insert(InsertAt, ToolButton.ToolItem);
UpdateButtonsTags;
ResizeButtons;
end;
function TKASToolBar.InsertButton(InsertAt: TKASToolButton; Item: TKASToolItem): TKASToolButton;
var
Index: Integer;
begin
Index := ButtonList.IndexOf(InsertAt);
if Index < 0 then
Index := ButtonCount;
Result := InsertButton(Index, Item);
end;
procedure TKASToolBar.CalculatePreferredSize(var PreferredWidth,
PreferredHeight: Integer; WithThemeSpace: Boolean);
begin
WrapButtons(Width, PreferredWidth, PreferredHeight, True);
end;
procedure TKASToolBar.ControlsAligned;
var
NewWidth, NewHeight: integer;
begin
if tbfPlacingControls in FKASToolBarFlags then exit;
Include(FKASToolBarFlags, tbfPlacingControls);
try
WrapButtons(Width, NewWidth, NewHeight, False);
finally
Exclude(FKASToolBarFlags, tbfPlacingControls);
end;
end;
procedure TKASToolBar.FontChanged(Sender: TObject);
begin
inherited FontChanged(Sender);
ResizeButtons;
end;
function TKASToolBar.WrapButtons(UseWidth: integer;
out NewWidth, NewHeight: Integer; Simulate: boolean): Boolean;
var
ARect: TRect;
x: Integer;
y: Integer;
CurControl: TControl;
StartX: Integer;
procedure CalculatePosition;
var
NewBounds: TRect;
begin
NewBounds := Bounds(x, y, CurControl.Width, RowHeight);
repeat
if (not Wrapable) or
(NewBounds.Right <= ARect.Right) or
(NewBounds.Left = StartX) then
begin
// control fits into the row
x := NewBounds.Left;
y := NewBounds.Top;
break;
end;
// try next row
NewBounds.Left := StartX;
NewBounds.Right := NewBounds.Left + CurControl.Width;
inc(NewBounds.Top, RowHeight);
inc(NewBounds.Bottom, RowHeight);
until false;
end;
var
CurClientRect: TRect;
AdjustClientFrame: TRect;
i: Integer;
w, h: Longint;
begin
Result := True;
NewWidth := 0;
NewHeight := 0;
DisableAlign;
BeginUpdate;
try
CurClientRect := ClientRect;
inc(CurClientRect.Right, UseWidth - Width);
ARect := CurClientRect;
AdjustClientRect(ARect);
AdjustClientFrame.Left := ARect.Left - CurClientRect.Left;
AdjustClientFrame.Top := ARect.Top - CurClientRect.Top;
AdjustClientFrame.Right := CurClientRect.Right - ARect.Right;
AdjustClientFrame.Bottom := CurClientRect.Bottom - ARect.Bottom;
//DebugLn(['TToolBar.WrapButtons ',DbgSName(Self),' ARect=',dbgs(ARect)]);
// important: top, left button must start in the AdjustClientRect top, left
// otherwise Toolbar.AutoSize=true will create an endless loop
StartX := ARect.Left;
x := StartX;
y := ARect.Top;
for i := 0 to ButtonList.Count - 1 do
begin
CurControl := TControl(ButtonList[i]);
if not CurControl.IsControlVisible then
Continue;
CalculatePosition;
w := CurControl.Width;
h := CurControl.Height;
if (not Simulate) and ((CurControl.Left <> x) or (CurControl.Top <> y)) then
begin
CurControl.SetBounds(x,y,w,h); // Note: do not use SetBoundsKeepBase
end;
// adjust NewWidth, NewHeight
NewWidth := Max(NewWidth, x + w + AdjustClientFrame.Right);
NewHeight := Max(NewHeight, y + h + AdjustClientFrame.Bottom);
// step to next position
inc(x,w);
end;
finally
EndUpdate;
EnableAlign;
end;
end;
procedure TKASToolBar.ResizeButtons;
var
w, h: LongInt;
i: Integer;
CurControl: TControl;
begin
if FUpdateCount > 0 then
begin
FResizeButtonsNeeded := True;
Exit;
end;
InvalidatePreferredChildSizes;
FRowHeight := ButtonHeight; // Row height is at least initial button height
// First recalculate RowHeight.
for i := 0 to ButtonList.Count - 1 do
begin
CurControl := TControl(ButtonList[i]);
w := ButtonWidth;
h := ButtonHeight;
CurControl.GetPreferredSize(w, h);
if FRowHeight < h then
FRowHeight := h;
end;
FResizeButtonsNeeded := False;
// Now resize buttons.
DisableAlign;
BeginUpdate;
try
for i := 0 to ButtonList.Count - 1 do
begin
CurControl := TControl(ButtonList[i]);
w := ButtonWidth;
h := RowHeight;
CurControl.GetPreferredSize(w, h);
if (CurControl.Width <> w) or (CurControl.Height <> h) then
CurControl.SetBounds(CurControl.Left, CurControl.Top, w, h);
end;
InvalidatePreferredSize;
AdjustSize;
finally
EndUpdate;
EnableAlign;
end;
end;
procedure TKASToolBar.SaveConfiguration(Config: TXmlConfig; RootNode: TXmlNode);
var
Node: TXmlNode;
Item: TKASToolItem;
i: Integer;
begin
if ButtonCount > 0 then
begin
Node := Config.AddNode(RootNode, 'Row');
for i := 0 to ButtonCount - 1 do
begin
Item := TKASToolButton(Buttons[i]).ToolItem;
Item.Save(Config, Node);
end;
end;
end;
procedure TKASToolBar.DrawLinkIcon(Image: TBitMap);
var
sizeLink : Integer;
bmLinkIcon : TBitmap;
{$IFDEF LCLGTK2}
bmTempIcon : TBitmap;
{$ENDIF}
ToolItem: TKASNormalItem;
begin
if (Image = nil) or (FOnLoadButtonGlyph = nil) then Exit;
sizeLink := FGlyphSize div 2;
ToolItem := TKASNormalItem.Create;
ToolItem.Icon := 'emblem-symbolic-link';
bmLinkIcon:= FOnLoadButtonGlyph(ToolItem, sizeLink, clBtnFace);
ToolItem.Free;
if Assigned(bmLinkIcon) then
begin
{$IFDEF LCLGTK2} // Under GTK2 can not draw over alpha transparent pixels
bmTempIcon := TBitmap.Create;
bmTempIcon.Assign(Image);
Image.FreeImage;
Image.SetSize(FGlyphSize, FGlyphSize);
Image.Canvas.Brush.Color := clBtnFace;
Image.Canvas.FillRect(0, 0, FGlyphSize, FGlyphSize);
Image.Canvas.Draw(0, 0, bmTempIcon);
bmTempIcon.Free;
{$ENDIF}
Image.Canvas.Draw(FGlyphSize-sizeLink+2,FGlyphSize-sizeLink+2, bmLinkIcon);
Image.TransparentColor:= clBtnFace;
Image.Transparent:= True;
bmLinkIcon.Free;
end;
end;
function TKASToolBar.LoadBtnIcon(IconPath: String): TBitMap;
var
picture: TPicture;
begin
if (IconPath = '') or (not mbFileExists(IconPath)) then Exit(nil);
Picture := TPicture.Create;
try
Picture.LoadFromFile(IconPath);
Result := TBitmap.Create;
Result.Assign(Picture.Bitmap);
finally
FreeAndNil(Picture);
end;
end;
procedure TKASToolBar.LoadConfiguration(Config: TXmlConfig; RootNode: TXmlNode;
Loader: TKASToolBarLoader);
var
Node: TXmlNode;
begin
Clear;
BeginUpdate;
try
Node := Config.FindNode(RootNode, 'Row', False);
if Assigned(Node) then
Loader.Load(Config, Node, @ToolItemLoaded);
finally
EndUpdate;
end;
end;
procedure TKASToolBar.AssignToolButtonProperties(ToolButton: TKASToolButton);
begin
ToolButton.OnClick:= @ToolButtonClick;
ToolButton.OnMouseDown:= @ToolButtonMouseDown;
ToolButton.OnMouseUp:= @ToolButtonMouseUp;
ToolButton.OnMouseMove:= @ToolButtonMouseMove;
ToolButton.OnDragDrop:= @ToolButtonDragDrop;
ToolButton.OnDragOver:= @ToolButtonDragOver;
ToolButton.OnEndDrag:= @ToolButtonEndDrag;
end;
function TKASToolBar.GetChangePath: String;
begin
end;
function TKASToolBar.GetEnvVar: String;
begin
end;
function TKASToolBar.GetToolItemShortcutsHint(Item: TKASToolItem): String;
begin
Result := '';
if Assigned(FOnToolItemShortcutsHint) and (Item is TKASNormalItem) then
Result := FOnToolItemShortcutsHint(TKASNormalItem(Item));
end;
function TKASToolBar.GetButton(Index: Integer): TKASToolButton;
begin
Result:= TKASToolButton(ButtonList.Items[Index]);
end;
procedure TKASToolBar.SetChangePath(const AValue: String);
begin
end;
procedure TKASToolBar.SetEnvVar(const AValue: String);
begin
end;
procedure TKASToolBar.SetFlat(const AValue: Boolean);
var
I: Integer;
begin
FFlat:= AValue;
for I:= 0 to ButtonList.Count - 1 do
TKASToolButton(ButtonList.Items[I]).Flat:= FFlat;
end;
procedure TKASToolBar.SetGlyphSize(const AValue: Integer);
var
I: Integer;
begin
if FGlyphSize = AValue then Exit;
FGlyphSize:= AValue;
BeginUpdate;
try
for I := 0 to ButtonList.Count - 1 do
UpdateIcon(TKASToolButton(ButtonList[i]));
finally
EndUpdate;
end;
end;
procedure TKASToolBar.ShowMenu(ToolButton: TKASToolButton);
var
Depth: Integer = 0;
procedure MakeMenu(PopupMenu: TMenuItem; MenuItem: TKASMenuItem);
var
I: Integer;
Item: TKASToolItem;
PopupMenuItem: TMenuItem;
BitmapTmp: TBitmap = nil;
sText: String;
begin
for I := 0 to MenuItem.SubItems.Count - 1 do
begin
Item := MenuItem.SubItems.Items[I];
if Item is TKASSeparatorItem then
begin
PopupMenu.AddSeparator;
end
else
begin
PopupMenuItem := TMenuItem.Create(PopupMenu);
sText := Item.GetEffectiveText;
if sText = '' then
sText := Item.GetEffectiveHint;
PopupMenuItem.Caption := sText;
if Item is TKASNormalItem then
begin
if Assigned(FOnLoadButtonGlyph) then
BitmapTmp := FOnLoadButtonGlyph(Item, 16, clMenu);
if not Assigned(BitmapTmp) then
BitmapTmp := LoadBtnIcon(TKASNormalItem(Item).Icon);
PopupMenuItem.Bitmap := BitmapTmp;
FreeAndNil(BitmapTmp);
end;
PopupMenuItem.Tag := PtrInt(Item);
PopupMenuItem.OnClick := TNotifyEvent(@ToolMenuClicked);
PopupMenu.Add(PopupMenuItem);
if Item is TKASMenuItem then
MakeMenu(PopupMenuItem, TKASMenuItem(Item));
end;
end;
end;
var
Point: TPoint;
begin
FToolPopupMenu.Free;
FToolPopupMenu := TPopupMenu.Create(Self);
MakeMenu(FToolPopupMenu.Items, ToolButton.ToolItem as TKASMenuItem);
Point.x := ToolButton.Left;
Point.y := ToolButton.Top + ToolButton.Height;
Point := Self.ClientToScreen(Point);
FToolPopupMenu.PopUp(Point.x, Point.y);
end;
procedure TKASToolBar.ToolButtonClick(Sender: TObject);
var
Button: TKASToolButton;
begin
Button := Sender as TKASToolButton;
// Do not allow depressing down buttons.
if FRadioToolBar and not Button.Down then
Button.Down := True;
if not ExecuteToolItem(Button.ToolItem) then
begin
if Assigned(FOnToolButtonClick) then
FOnToolButtonClick(Button)
else if Button.ToolItem is TKASMenuItem then
begin
ShowMenu(Button);
end;
end;
end;
procedure TKASToolBar.ToolButtonMouseDown(Sender: TObject; Button: TMouseButton; Shift:TShiftState; X,Y:Integer);
begin
if Assigned(FOnToolButtonMouseDown) then
FOnToolButtonMouseDown(Sender, Button, Shift, X,Y);
end;
procedure TKASToolBar.ToolButtonMouseUp(Sender: TObject; Button: TMouseButton; Shift:TShiftState; X,Y:Integer);
begin
if Assigned(FOnToolButtonMouseUp) then
FOnToolButtonMouseUp(Sender, Button, Shift, X,Y);
end;
procedure TKASToolBar.ToolItemLoaded(Item: TKASToolItem);
begin
AddButton(Item);
end;
procedure TKASToolBar.ToolMenuClicked(Sender: TObject);
begin
ExecuteToolItem(TKASToolItem((Sender as TMenuItem).Tag));
end;
procedure TKASToolBar.ToolButtonMouseMove(Sender: TObject; Shift:TShiftState; X,Y:Integer);
begin
if Assigned(FOnToolButtonMouseMove) then
FOnToolButtonMouseMove(Sender, Shift, X,Y, (Sender as TSpeedButton).Tag);
end;
procedure TKASToolBar.ToolButtonDragOver(Sender, Source: TObject; X,Y: Integer; State: TDragState; var Accept: Boolean);
begin
if Assigned(FOnToolButtonDragOver) then
FOnToolButtonDragOver(Sender, Source, X,Y, State, Accept, (Sender as TSpeedButton).Tag);
end;
procedure TKASToolBar.ToolButtonDragDrop(Sender, Source: TObject; X,Y: Integer);
begin
if Assigned(FOnToolButtonDragDrop) then
FOnToolButtonDragDrop(Sender, Source, X, Y);
end;
procedure TKASToolBar.ToolButtonEndDrag(Sender, Target: TObject; X, Y: Integer);
begin
if Assigned(FOnToolButtonEndDrag) then
FOnToolButtonEndDrag(Sender, Target, X, Y);
end;
procedure TKASToolBar.MoveButton(ButtonIndex, MovePosition: Integer);
begin
ButtonList.Move(ButtonIndex, MovePosition);
FToolItems.Move(ButtonIndex, MovePosition);
UpdateButtonsTags;
ResizeButtons;
end;
procedure TKASToolBar.MoveButton(SourceButton: TKASToolButton; TargetToolBar: TKASToolBar; InsertAt: TKASToolButton);
var
Index: Integer;
ToolItem: TKASToolItem;
begin
Index := FindButton(SourceButton);
if (Index <> -1) and (FToolItems[Index] = SourceButton.ToolItem) then
begin
SourceButton.FToolItem := nil;
TargetToolBar.InsertButton(InsertAt, FToolItems.ReleaseItem(Index));
ButtonList.Delete(Index);
Application.ReleaseComponent(SourceButton); // Free later
UpdateButtonsTags;
Resize;
end;
end;
procedure TKASToolBar.UpdateButtonsTags;
var
I: Integer;
begin
for I:= 0 to ButtonList.Count - 1 do
TKASToolButton(ButtonList.Items[I]).Tag:= I;
end;
procedure TKASToolBar.UpdateIcon(ToolButton: TKASToolButton);
var
Bitmap: TBitmap = nil;
begin
try
if Assigned(FOnLoadButtonGlyph) then
Bitmap := FOnLoadButtonGlyph(ToolButton.ToolItem, FGlyphSize, clBtnFace);
if not Assigned(Bitmap) and (ToolButton.ToolItem is TKASNormalItem) then
Bitmap := LoadBtnIcon(TKASNormalItem(ToolButton.ToolItem).Icon);
try
if (ToolButton.ToolItem is TKASMenuItem) and Assigned(Bitmap) then
DrawLinkIcon(Bitmap);
ToolButton.Glyph.Assign(Bitmap);
finally
Bitmap.Free;
end;
except
// Ignore
end;
end;
procedure TKASToolBar.UseItems(AItems: TKASToolBarItems);
var
i: Integer;
Button: TKASToolButton;
begin
if Assigned(AItems) then
begin
BeginUpdate;
Clear;
if FOwnsToolItems then
FToolItems.Free;
FToolItems := AItems;
FOwnsToolItems := False;
// Insert the existing items as buttons.
for i := 0 to FToolItems.Count - 1 do
begin
Button := CreateButton(FToolItems.Items[i]);
if Assigned(Button) then
ButtonList.Insert(ButtonCount, Button);
end;
UpdateButtonsTags;
ResizeButtons;
EndUpdate;
end;
end;
procedure TKASToolBar.Clear;
var
I: Integer;
begin
BeginUpdate;
for I := 0 to ButtonList.Count - 1 do
TKASToolButton(ButtonList.Items[I]).Free;
ButtonList.Clear;
if Assigned(FToolItems) then
FToolItems.Clear;
EndUpdate;
end;
procedure TKASToolBar.ClearExecutors;
var
I: Integer;
begin
for I := 0 to FToolItemExecutors.Count - 1 do
Dispose(PToolItemExecutor(FToolItemExecutors[I]));
FToolItemExecutors.Clear;
end;
procedure TKASToolBar.ClickItem(ToolItemID: String);
var
I: Integer;
Button: TKASToolButton;
NormalItem: TKASNormalItem;
begin
for I := 0 to ButtonList.Count - 1 do
begin
Button := TKASToolButton(ButtonList.Items[I]);
if Button.ToolItem is TKASNormalItem then
begin
NormalItem := TKASNormalItem(Button.ToolItem);
if NormalItem.ID = ToolItemID then
begin
Button.Click;
Break;
end;
if Button.ToolItem.CheckExecute(ToolItemID) then
Break;
end;
end;
end;
procedure TKASToolBar.SetButtonHeight(const AValue: Integer);
begin
SetButtonSize(ButtonWidth, AValue);
end;
procedure TKASToolBar.SetButtonWidth(const AValue: Integer);
begin
SetButtonSize(AValue, ButtonHeight);
end;
constructor TKASToolBar.Create(TheOwner: TComponent);
begin
inherited Create(TheOwner);
FGlyphSize:= 16; // by default
FUpdateCount:= 0;
FButtonWidth := 23;
FButtonHeight := 22;
FKASToolBarFlags := [];
FToolItemExecutors := TFPList.Create;
FToolItems := TKASToolBarItems.Create;
FOwnsToolItems := True;
end;
function TKASToolBar.CreateButton(Item: TKASToolItem): TKASToolButton;
begin
if Assigned(Item) then
begin
if FOwnsToolItems then
Item.SetToolOwner(Self);
if Item is TKASSeparatorItem then
begin
Result := TKASToolDivider.Create(Self, Item);
end
else
begin
Result := TKASToolButton.Create(Self, Item);
Result.ShowHint := True;
Result.Caption := Item.GetEffectiveText;
Result.Hint := Item.GetEffectiveHint;
end;
Result.Flat := FFlat;
if FRadioToolBar then
begin
Result.GroupIndex := 1;
Result.AllowAllUp := True;
end;
Result.ShowCaption := ShowCaptions;
UpdateIcon(Result);
AssignToolButtonProperties(Result);
Result.Parent := Self;
end
else
Result := nil;
end;
destructor TKASToolBar.Destroy;
begin
if not FOwnsToolItems then
FToolItems := nil; // Unassign before Clear so that items are not cleared.
Clear;
inherited Destroy;
ClearExecutors;
FToolItemExecutors.Free;
if FOwnsToolItems then
FToolItems.Free;
end;
function TKASToolBar.ExecuteToolItem(Item: TKASToolItem): Boolean;
var
I: Integer;
Executor: PToolItemExecutor;
BestMatch: PToolItemExecutor = nil;
begin
for I := 0 to FToolItemExecutors.Count - 1 do
begin
Executor := PToolItemExecutor(FToolItemExecutors[I]);
if Assigned(Executor^.ToolItemExecute) and
Item.InheritsFrom(Executor^.ToolItemClass) and
(not Assigned(BestMatch) or
(Executor^.ToolItemClass.InheritsFrom(BestMatch^.ToolItemClass))) then
begin
BestMatch := Executor;
end;
end;
Result := Assigned(BestMatch);
if Result then
BestMatch^.ToolItemExecute(Item);
end;
procedure TKASToolBar.BeginUpdate;
begin
{$if lcl_fullversion < 1010000}
Inc(FUpdateCount);
{$endif}
inherited BeginUpdate;
DisableAutoSizing;
end;
procedure TKASToolBar.EndUpdate;
begin
EnableAutoSizing;
inherited EndUpdate;
{$if lcl_fullversion < 1010000}
Dec(FUpdateCount);
{$endif}
if (FUpdateCount = 0) and FResizeButtonsNeeded then
ResizeButtons;
end;
function TKASToolBar.FindButton(Button: TKASToolButton): Integer;
var
I: Integer;
begin
for I := 0 to ButtonList.Count - 1 do
if TKASToolButton(ButtonList[I]) = Button then
Exit(I);
Result := -1;
end;
procedure TKASToolBar.SetButtonSize(NewButtonWidth, NewButtonHeight: Integer);
begin
FButtonWidth := NewButtonWidth;
FButtonHeight := NewButtonHeight;
ResizeButtons;
end;
function TKASToolBar.AddButton(Item: TKASToolItem): TKASToolButton;
begin
Result := InsertButton(ButtonCount, Item);
end;
procedure TKASToolBar.AddToolItemExecutor(ToolItemClass: TKASToolItemClass; ExecuteFunction: TOnToolItemExecute);
var
Executor: PToolItemExecutor;
begin
New(Executor);
FToolItemExecutors.Add(Executor);
Executor^.ToolItemClass := ToolItemClass;
Executor^.ToolItemExecute := ExecuteFunction;
end;
function TKASToolBar.InsertButton(InsertAt: Integer; Item: TKASToolItem): TKASToolButton;
begin
Result := CreateButton(Item);
if Assigned(Result) then
InsertButton(InsertAt, Result);
end;
procedure TKASToolBar.RemoveButton(Index: Integer);
var
Button: TKASToolButton;
begin
Button := TKASToolButton(ButtonList.Items[Index]);
ButtonList.Delete(Index);
Button.Free;
FToolItems.Remove(Index);
UpdateButtonsTags;
Resize;
end;
procedure TKASToolBar.RemoveButton(Button: TKASToolButton);
var
Index: Integer;
begin
Index := FindButton(Button);
if Index <> -1 then
RemoveButton(Index);
end;
procedure TKASToolBar.RemoveToolItemExecutor(ExecuteFunction: TOnToolItemExecute);
var
Executor: PToolItemExecutor;
I: Integer;
begin
for I := FToolItemExecutors.Count - 1 downto 0 do
begin
Executor := PToolItemExecutor(FToolItemExecutors[I]);
if (TMethod(Executor^.ToolItemExecute).Code = TMethod(ExecuteFunction).Code) and
(TMethod(Executor^.ToolItemExecute).Data = TMethod(ExecuteFunction).Data) then
begin
Dispose(Executor);
FToolItemExecutors.Delete(I);
end;
end;
end;
procedure TKASToolBar.UncheckAllButtons;
var
I: Integer;
begin
for I:= 0 to ButtonCount - 1 do
Buttons[I].Down:= False;
end;
{ TKASToolButton }
procedure TKASToolButton.CalculatePreferredSize(var PreferredWidth,
PreferredHeight: integer; WithThemeSpace: Boolean);
var
TextSize: TSize;
begin
if Assigned(Parent) then
begin
if ShowCaption and (Caption <> EmptyStr) then
begin
// Size to extent of the icon + caption.
// Minimum size is the ButtonWidth x RowHeight of the toolbar.
TextSize := Canvas.TextExtent(Caption);
PreferredWidth := Max(TextSize.cx + Glyph.Width + 16, ToolBar.ButtonWidth);
PreferredHeight := Max(TextSize.cy + 4, ToolBar.RowHeight);
end
else
begin
PreferredWidth := ToolBar.ButtonWidth;
PreferredHeight := ToolBar.RowHeight;
end;
end
else
inherited;
end;
constructor TKASToolButton.Create(AOwner: TComponent; Item: TKASToolItem);
begin
inherited Create(AOwner);
FToolItem := Item;
end;
function TKASToolButton.GetToolBar: TKASToolBar;
begin
Result := Parent as TKASToolBar;
end;
{ TKASToolDivider }
procedure TKASToolDivider.CalculatePreferredSize(var PreferredWidth,
PreferredHeight: integer; WithThemeSpace: Boolean);
begin
if Assigned(Parent) and (Parent is TKASToolBar) and
not TKASToolBar(Parent).FShowDividerAsButton then
begin
PreferredWidth := 5;
PreferredHeight := TKASToolBar(Parent).RowHeight;
end
else
inherited;
end;
procedure TKASToolDivider.Paint;
var
DividerRect: TRect;
Details: TThemedElementDetails;
begin
if Assigned(Parent) and (Parent is TKASToolBar) and
not TKASToolBar(Parent).FShowDividerAsButton then
begin
DividerRect:= ClientRect;
Details:= ThemeServices.GetElementDetails(ttbSeparatorNormal);
// Theme services have no strict rule to draw divider in the center,
// so we should calculate rectangle here
// on windows 7 divider can't be less than 4 pixels
if (DividerRect.Right - DividerRect.Left) > 5 then
begin
DividerRect.Left := (DividerRect.Left + DividerRect.Right) div 2 - 3;
DividerRect.Right := DividerRect.Left + 5;
end;
ThemeServices.DrawElement(Canvas.GetUpdatedHandle([csBrushValid, csPenValid]), Details, DividerRect);
end
else
inherited Paint;
end;
end.