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{ $Id: win32wscomctrls.pp 62667 2020-02-24 04:12:44Z dmitry $}
{
*****************************************************************************
* Win32WSComCtrls.pp *
* ------------------ *
* *
* *
*****************************************************************************
*****************************************************************************
This file is part of the Lazarus Component Library (LCL)
See the file COPYING.modifiedLGPL.txt, included in this distribution,
for details about the license.
*****************************************************************************
}
unit Win32WSComCtrls;
{$mode objfpc}{$H+}
{$I win32defines.inc}
interface
uses
// FCL
CommCtrl, Windows, Classes, SysUtils, Math, Win32Extra,
// LCL
ComCtrls, LCLType, Controls, Graphics, Themes,
ImgList, StdCtrls, Forms, LCLIntf, LCLProc,
LMessages, LazUTF8, LCLMessageGlue, InterfaceBase,
// widgetset
WSComCtrls, WSLCLClasses, WSControls, WSProc,
// win32 widgetset
Win32Int, Win32Proc, Win32WSControls;
type
{ TWin32WSCustomPage }
TWin32WSCustomPage = class(TWSCustomPage)
public
class procedure ThemeChange(Wnd: HWND);
published
class function CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND; override;
class procedure DestroyHandle(const AWinControl: TWinControl); override;
class procedure UpdateProperties(const ACustomPage: TCustomPage); override;
class procedure SetText(const AWinControl: TWinControl; const AText: string); override;
end;
{ TWin32WSCustomTabControl }
TWin32WSCustomTabControl = class(TWSCustomTabControl)
public
class procedure DeletePage(const ATabControl: TCustomTabControl; const AIndex: integer);
published
class function CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND; override;
class procedure AddAllNBPages(const ATabControl: TCustomTabControl);
class procedure AdjustSizeTabControlPages(const ATabControl: TCustomTabControl);
class procedure AddPage(const ATabControl: TCustomTabControl;
const AChild: TCustomPage; const AIndex: integer); override;
class procedure MovePage(const ATabControl: TCustomTabControl;
const AChild: TCustomPage; const NewIndex: integer); override;
class procedure RemoveAllNBPages(const ATabControl: TCustomTabControl);
class procedure RemovePage(const ATabControl: TCustomTabControl;
const AIndex: integer); override;
class function GetNotebookMinTabHeight(const AWinControl: TWinControl): integer; override;
class function GetNotebookMinTabWidth(const AWinControl: TWinControl): integer; override;
class function GetTabIndexAtPos(const ATabControl: TCustomTabControl; const AClientPos: TPoint): integer; override;
class function GetTabRect(const ATabControl: TCustomTabControl; const AIndex: Integer): TRect; override;
class function GetCapabilities: TCTabControlCapabilities; override;
class function GetDesignInteractive(const AWinControl: TWinControl; AClientPos: TPoint): Boolean; override;
class procedure SetTabSize(const ATabControl: TCustomTabControl; const ATabWidth, ATabHeight: integer); override;
class procedure SetImageList(const ATabControl: TCustomTabControl; const AImageList: TCustomImageListResolution); override;
class procedure SetPageIndex(const ATabControl: TCustomTabControl; const AIndex: integer); override;
class procedure SetTabPosition(const ATabControl: TCustomTabControl; const ATabPosition: TTabPosition); override;
class procedure ShowTabs(const ATabControl: TCustomTabControl; AShowTabs: boolean); override;
class procedure UpdateProperties(const ATabControl: TCustomTabControl); override;
end;
{ TWin32WSStatusBar }
TWin32WSStatusBar = class(TWSStatusBar)
public
class procedure DoUpdate(const AStatusBar: TStatusBar);
class procedure DoSetPanelText(const AStatusBar: TStatusBar; PanelIndex: integer);
class function GetUpdated(const AStatusBar: TStatusBar): Boolean;
class procedure SetUpdated(const AStatusBar: TStatusBar; const Value: Boolean);
published
class function CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND; override;
class procedure Update(const AStatusBar: TStatusBar); override;
class procedure PanelUpdate(const AStatusBar: TStatusBar; PanelIndex: integer); override;
class procedure SetColor(const AWinControl: TWinControl); override;
class procedure SetPanelText(const AStatusBar: TStatusBar; PanelIndex: integer); override;
class procedure SetSizeGrip(const AStatusBar: TStatusBar; SizeGrip: Boolean); override;
class procedure SetText(const AWinControl: TWinControl; const AText: string); override;
class procedure GetPreferredSize(const AWinControl: TWinControl;
var PreferredWidth, PreferredHeight: integer;
WithThemeSpace: Boolean); override;
end;
{ TWin32WSTabSheet }
TWin32WSTabSheet = class(TWSTabSheet)
published
end;
{ TWin32WSPageControl }
TWin32WSPageControl = class(TWSPageControl)
published
end;
{ TWin32WSCustomListView }
TWin32WSCustomListView = class(TWSCustomListView)
private
class procedure ColumnDoAutosize(const ALV: TCustomListView; const AIndex: Integer);
class function GetHeader(const AHandle: THandle): THandle;
class procedure PositionHeader(const AHandle: THandle);
class procedure UpdateStyle(const AHandle: THandle; const AMask, AStyle: Integer);
class procedure UpdateExStyle(const AHandle: THandle; const AMask, AStyle: Integer);
class procedure LVItemAssign(const ALV: TCustomListView; AItem: TListItem; const AIndex: Integer);
published
// columns
class procedure ColumnDelete(const ALV: TCustomListView; const AIndex: Integer); override;
class function ColumnGetWidth(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn): Integer; override;
class procedure ColumnInsert(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn); override;
class procedure ColumnMove(const ALV: TCustomListView; const AOldIndex, ANewIndex: Integer; const AColumn: TListColumn); override;
class procedure ColumnSetAlignment(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const AAlignment: TAlignment); override;
class procedure ColumnSetAutoSize(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const AAutoSize: Boolean); override;
class procedure ColumnSetCaption(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const ACaption: String); override;
class procedure ColumnSetImage(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const AImageIndex: Integer); override;
class procedure ColumnSetMaxWidth(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const AMaxWidth: Integer); override;
class procedure ColumnSetMinWidth(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const AMinWidth: integer); override;
class procedure ColumnSetWidth(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const AWidth: Integer); override;
class procedure ColumnSetVisible(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const AVisible: Boolean); override;
class procedure ColumnSetSortIndicator(const ALV: TCustomListView; const AIndex: Integer; const AColumn: TListColumn; const AAndicator: TSortIndicator); override;
// items
class procedure ItemDelete(const ALV: TCustomListView; const AIndex: Integer); override;
class function ItemDisplayRect(const ALV: TCustomListView; const AIndex, ASubItem: Integer; ACode: TDisplayCode): TRect; override;
class procedure ItemExchange(const ALV: TCustomListView; AItem: TListItem; const AIndex1, AIndex2: Integer); override;
class procedure ItemMove(const ALV: TCustomListView; AItem: TListItem; const AFromIndex, AToIndex: Integer); override;
class function ItemGetChecked(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem): Boolean; override;
class function ItemGetPosition(const ALV: TCustomListView; const AIndex: Integer): TPoint; override;
class function ItemGetState(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem; const AState: TListItemState; out AIsSet: Boolean): Boolean; override; // returns True if supported
class procedure ItemInsert(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem); override;
class procedure ItemSetChecked(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem; const AChecked: Boolean); override;
class procedure ItemSetImage(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem; const ASubIndex, AImageIndex: Integer); override;
class function ItemSetPosition(const ALV: TCustomListView; const AIndex: Integer; const ANewPosition: TPoint): Boolean; override;
class procedure ItemSetStateImage(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem; const ASubIndex, AStateImageIndex: Integer); override;
class procedure ItemSetState(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem; const AState: TListItemState; const AIsSet: Boolean); override;
class procedure ItemSetText(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem; const ASubIndex: Integer; const AText: String); override;
class procedure ItemShow(const ALV: TCustomListView; const AIndex: Integer; const AItem: TListItem; const PartialOK: Boolean); override;
// lv
class function CreateHandle(const AWinControl: TWinControl; const AParams: TCreateParams): HWND; override;
class procedure BeginUpdate(const ALV: TCustomListView); override;
class procedure EndUpdate(const ALV: TCustomListView); override;
class function GetBoundingRect(const ALV: TCustomListView): TRect; override;
class function GetDropTarget(const ALV: TCustomListView): Integer; override;
class function GetFocused(const ALV: TCustomListView): Integer; override;
class function GetHitTestInfoAt( const ALV: TCustomListView; X, Y: Integer ) : THitTests; override;
class function GetHoverTime(const ALV: TCustomListView): Integer; override;
class function GetItemAt(const ALV: TCustomListView; x,y: Integer): Integer; override;
class function GetSelCount(const ALV: TCustomListView): Integer; override;
class function GetSelection(const ALV: TCustomListView): Integer; override;
class function GetTopItem(const ALV: TCustomListView): Integer; override;
class function GetViewOrigin(const ALV: TCustomListView): TPoint; override;
class function GetVisibleRowCount(const ALV: TCustomListView): Integer; override;
class procedure SelectAll(const ALV: TCustomListView; const AIsSet: Boolean); override;
class procedure SetAllocBy(const ALV: TCustomListView; const AValue: Integer); override;
class procedure SetBorderStyle(const AWinControl: TWinControl; const ABorderStyle: TBorderStyle); override;
class procedure SetColor(const AWinControl: TWinControl); override;
class procedure SetDefaultItemHeight(const ALV: TCustomListView; const AValue: Integer); override;
class procedure SetFont(const AWinControl: TWinControl; const AFont: TFont); override;
class procedure SetHotTrackStyles(const ALV: TCustomListView; const AValue: TListHotTrackStyles); override;
class procedure SetHoverTime(const ALV: TCustomListView; const AValue: Integer); override;
class procedure SetIconArrangement(const ALV: TCustomListView; const AValue: TIconArrangement); override;
class procedure SetImageList(const ALV: TCustomListView; const AList: TListViewImageList; const AValue: TCustomImageListResolution); override;
class procedure SetItemsCount(const ALV: TCustomListView; const AValue: Integer); override;
class procedure SetOwnerData(const ALV: TCustomListView; const AValue: Boolean); override;
class procedure SetProperty(const ALV: TCustomListView; const AProp: TListViewProperty; const AIsSet: Boolean); override;
class procedure SetProperties(const ALV: TCustomListView; const AProps: TListViewProperties); override;
class procedure SetScrollBars(const ALV: TCustomListView; const AValue: TScrollStyle); override;
class procedure SetSort(const ALV: TCustomListView; const AType: TSortType; const AColumn: Integer;
const ASortDirection: TSortDirection); override;
class procedure SetViewOrigin(const ALV: TCustomListView; const AValue: TPoint); override;
class procedure SetViewStyle(const ALV: TCustomListView; const Avalue: TViewStyle); override;
end;
{ TWin32WSListView }
TWin32WSListView = class(TWSListView)
published
end;
{ TWin32WSProgressBar }
TWin32WSProgressBar = class(TWSProgressBar)
published
class function CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND; override;
class procedure ApplyChanges(const AProgressBar: TCustomProgressBar); override;
class procedure SetPosition(const AProgressBar: TCustomProgressBar; const NewPosition: integer); override;
class procedure SetStyle(const AProgressBar: TCustomProgressBar; const NewStyle: TProgressBarStyle); override;
class function GetConstraints(const AControl: TControl; const AConstraints: TObject): Boolean; override;
end;
{ TWin32WSCustomUpDown }
TWin32WSCustomUpDown = class(TWSCustomUpDown)
published
end;
{ TWin32WSUpDown }
TWin32WSUpDown = class(TWSUpDown)
published
end;
{ TWin32WSToolButton }
TWin32WSToolButton = class(TWSToolButton)
published
end;
{ TWin32WSToolBar }
TWin32WSToolBar = class(TWSToolBar)
published
{$ifdef OldToolbar}
class function CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND; override;
class function GetButtonCount(const AToolBar: TToolBar): integer; override;
class procedure InsertToolButton(const AToolBar: TToolbar; const AControl: TControl); override;
class procedure DeleteToolButton(const AToolBar: TToolbar; const AControl: TControl); override;
{$endif}
end;
{ TWin32WSTrackBar }
TWin32WSTrackBar = class(TWSTrackBar)
published
class function CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND; override;
class procedure DefaultWndHandler(const AWinControl: TWinControl;
var AMessage); override;
class procedure ApplyChanges(const ATrackBar: TCustomTrackBar); override;
class function GetPosition(const ATrackBar: TCustomTrackBar): integer; override;
class procedure SetPosition(const ATrackBar: TCustomTrackBar; const NewPosition: integer); override;
class procedure SetTick(const ATrackBar: TCustomTrackBar; const ATick: integer); override;
end;
{ TWin32WSCustomTreeView }
TWin32WSCustomTreeView = class(TWSCustomTreeView)
published
end;
{ TWin32WSTreeView }
TWin32WSTreeView = class(TWSTreeView)
published
end;
procedure TabControlFocusNewControl(const ATabControl: TCustomTabControl; NewIndex: integer);
function ShowHideTabPage(TabControlHandle: HWnd; Showing: boolean): integer;
implementation
const
DefMarqueeTime = 50; // ms
{$I win32pagecontrol.inc}
{$I win32treeview.inc}
type
TStatusPanelAccess = class(TStatusPanel);
{$I win32wscustomlistview.inc }
{ --- Helper routines for TWin32WSStatusBar --- }
var
PreferredStatusBarHeight: integer = 0;
procedure InitializePreferredStatusBarHeight;
var
Flags: LongWord;
Parent: HWND;
PreferredSizeStatusBar: HWND;
R: TRect;
AErrorCode: Cardinal;
begin
Flags := WS_CHILD or WS_CLIPSIBLINGS or WS_CLIPCHILDREN;
Parent := TWin32WidgetSet(WidgetSet).AppHandle;
PreferredSizeStatusBar := CreateWindowExW(0, STATUSCLASSNAMEW,
nil, Flags,
0, 0, 0, 0, Parent, 0, HInstance, nil);
if PreferredSizeStatusBar = 0 then
begin
AErrorCode := GetLastError;
DebugLn(['Failed to create win32 control, error: ', AErrorCode, ' : ', GetLastErrorText(AErrorCode)]);
raise Exception.Create('Failed to create win32 control, error: ' + IntToStr(AErrorCode) + ' : ' + GetLastErrorText(AErrorCode));
end;
GetWindowRect(PreferredSizeStatusBar, R);
PreferredStatusBarHeight := R.Bottom - R.Top;
DestroyWindow(PreferredSizeStatusBar);
end;
{------------------------------------------------------------------------------
Method: UpdateStatusBarPanel
Params: StatusPanel - StatusPanel which needs to be update
Returns: Nothing
Called by StatusBarPanelUpdate and StatusBarSetText
Everything is updated except the panel width
------------------------------------------------------------------------------}
procedure UpdateStatusBarPanel(const StatusPanel: TStatusPanel);
const
StatusBevelMap: array[TStatusPanelBevel] of Integer =
(
{ pbNone } Windows.SBT_NOBORDERS,
{ pbLowered } 0,
{ pbRaised } Windows.SBT_POPOUT
);
var
Text: string;
WParam: windows.WPARAM;
begin
Text := StatusPanel.Text;
//debugln('UpdateStatusBarPanel: Text=',Text);
case StatusPanel.Alignment of
taCenter: Text := #9 + Text;
taRightJustify: Text := #9#9 + Text;
end;
WParam := StatusBevelMap[StatusPanel.Bevel];
if StatusPanel.Style = psOwnerDraw then
WParam := WParam or SBT_OWNERDRAW;
//if UseRightToLeftAlignment then set Text on the ((Count - 1) - Index) panel ("mirrored"),
//because Panels are always counted Left to Right
//See: http://msdn.microsoft.com/en-us/library/windows/desktop/bb760757%28v=vs.85%29.aspx
if StatusPanel.StatusBar.UseRightToLeftAlignment then
WParam := WParam or ((StatusPanel.StatusBar.Panels.Count - 1) - StatusPanel.Index)
else
WParam := WParam or StatusPanel.Index;
if StatusPanel.StatusBar.UseRightToLeftReading then WParam := WParam or SBT_RTLREADING;
Windows.SendMessageW(StatusPanel.StatusBar.Handle, SB_SETTEXTW, WParam, LPARAM(PWideChar(UTF8ToUTF16(Text))));
end;
procedure UpdateStatusBarPanelWidths(const StatusBar: TStatusBar);
var
Rights: PInteger;
PanelIndex: integer;
CurrentRight: integer;
begin
//debugln('UpdateStatusBarPanelWidths');
if StatusBar.Panels.Count = 0 then
begin
// SETPARTS 0,0 does not work :S
Windows.SendMessage(StatusBar.Handle, SB_SIMPLE, 1, 0);
Windows.SendMessage(StatusBar.Handle, SB_SETTEXT, 255, WPARAM(PChar('')));
exit;
end;
Getmem(Rights, StatusBar.Panels.Count * SizeOf(integer));
try
if not StatusBar.UseRightToLeftAlignment then
begin
CurrentRight := 0;
for PanelIndex := 0 to StatusBar.Panels.Count - 2 do
begin
CurrentRight := CurrentRight + StatusBar.Panels[PanelIndex].Width;
Rights[PanelIndex] := CurrentRight;
//debugln(Format('CurrentRight for Panel[%d] = %d',[PanelIndex,CurrentRight]));
end;
Rights[StatusBar.Panels.Count-1] := -1; //Last extends to end;
end
else
begin
//"Mirror" the width of the panels and align the lot to the right
//It seems that panels (parts in MS speak) are always counted Left to Right
//See: http://msdn.microsoft.com/en-us/library/windows/desktop/bb760757%28v=vs.85%29.aspx
CurrentRight := 0;
for PanelIndex := 0 to StatusBar.Panels.Count - 1 do
begin
CurrentRight := CurrentRight + StatusBar.Panels[(StatusBar.Panels.Count-1) - PanelIndex].Width;
Rights[PanelIndex] := CurrentRight;
//debugln(Format('CurrentRight for Panel[%d] = %d',[PanelIndex,CurrentRight]));
end;
for PanelIndex := 0 to StatusBar.Panels.Count - 1 do
Rights[PanelIndex] := Rights[PanelIndex] + (StatusBar.ClientWidth - CurrentRight);
//Rights[StatusBar.Panels.Count-1] := -1; //Last extends to end;
end;
Windows.SendMessage(StatusBar.Handle, SB_SETPARTS, StatusBar.Panels.Count, LPARAM(Rights));
finally
Freemem(Rights);
end;
end;
function StatusBarWndProc(Window: HWnd; Msg: UInt; WParam: Windows.WParam;
LParam: Windows.LParam): LResult; stdcall;
var
Info: PWin32WindowInfo;
Control: TWinControl;
Details: TThemedElementDetails;
begin
Info := GetWin32WindowInfo(Window);
if (Info = nil) or (Info^.WinControl = nil) then
begin
Result := CallDefaultWindowProc(Window, Msg, WParam, LParam);
Exit;
end
else
Control := Info^.WinControl;
if Msg = WM_PAINT then
begin
TWin32WSStatusBar.DoUpdate(TStatusBar(Control));
Result := WindowProc(Window, Msg, WParam, LParam);
end
else
if Assigned(ThemeServices) and ThemeServices.ThemesEnabled then
begin
// Paul: next is a slightly modified code of TThemeManager.StatusBarWindowProc
// of Mike Lischke Theme manager library (Mike granted us permition to use his code)
case Msg of
WM_NCCALCSIZE:
begin
// We need to override the window class' CS_HREDRAW and CS_VREDRAW styles but the following
// does the job very well too.
// Note: this may produce trouble with embedded controls (e.g. progress bars).
if WParam <> 0 then
Result := CallDefaultWindowProc(Window, Msg, WParam, LParam) or WVR_REDRAW
else
Result := 1;
end;
WM_ERASEBKGND:
begin
Details := ThemeServices.GetElementDetails(tsStatusRoot);
ThemeServices.DrawElement(HDC(WParam), Details, Control.ClientRect);
Result := 1;
end;
else
Result := WindowProc(Window, Msg, WParam, LParam);
end;
end
else
Result := WindowProc(Window, Msg, WParam, LParam);
end;
{ TWin32WSStatusBar }
class procedure TWin32WSStatusBar.DoUpdate(const AStatusBar: TStatusBar);
var
PanelIndex: integer;
begin
// if we catch WM_PAINT and no update is needed then skip processing or we will
// do endless repaint
//debugln('TWin32WSStatusBar.DoUpdate');
if GetUpdated(AStatusBar) then
Exit;
// set updated flag here since SB_SETTEXT can call WM_PAINT on some
// windowses (win98) and we will have endless update
SetUpdated(AStatusBar, True);
if AStatusBar.SimplePanel then
DoSetPanelText(AStatusBar, 0)
else
begin
// we store a flag that we need to update panel in the IntfFlag property
for PanelIndex := 0 to AStatusBar.Panels.Count - 1 do
if TStatusPanelAccess(AStatusBar.Panels[PanelIndex]).FIntfFlag <> 1 then
begin
TStatusPanelAccess(AStatusBar.Panels[PanelIndex]).FIntfFlag := 1;
UpdateStatusBarPanel(AStatusBar.Panels[PanelIndex]);
end;
end;
end;
class function TWin32WSStatusBar.CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND;
var
Params: TCreateWindowExParams;
begin
// general initialization of Params
PrepareCreateWindow(AWinControl, AParams, Params);
// customization of Params
with Params do
begin
Flags := Flags or CCS_NOPARENTALIGN or CCS_NORESIZE;
if TStatusBar(AWinControl).SizeGrip and TStatusBar(AWinControl).SizeGripEnabled then
Flags := Flags or SBARS_SIZEGRIP;
pClassName := STATUSCLASSNAME;
WindowTitle := StrCaption;
SubClassWndProc := @StatusBarWndProc;
end;
// create window
FinishCreateWindow(AWinControl, Params, false);
Params.WindowInfo^.needParentPaint := false;
// need to set handle for Update method
AWinControl.Handle := Params.Window;
Update(TStatusBar(AWinControl));
Result := Params.Window;
end;
class procedure TWin32WSStatusBar.PanelUpdate(const AStatusBar: TStatusBar; PanelIndex: integer);
var
ARect: TRect;
begin
UpdateStatusBarPanelWidths(AStatusBar);
TStatusPanelAccess(AStatusBar.Panels[PanelIndex]).FIntfFlag := 0;
SetUpdated(AStatusBar, False);
// request invalidate of only panel rectange
SendMessage(AStatusBar.Handle, SB_GETRECT, PanelIndex, LParam(@ARect));
Windows.InvalidateRect(AStatusBar.Handle, ARect, False);
end;
class procedure TWin32WSStatusBar.SetColor(const AWinControl: TWinControl);
begin
if not WSCheckHandleAllocated(AWinControl, 'TWin32WSStatusBar.SetColor') then
Exit;
if AWinControl.Color = clDefault then
Windows.SendMessage(AWinControl.Handle, SB_SETBKCOLOR, 0, ColorToRGB(AWinControl.GetDefaultColor(dctBrush)))
else
Windows.SendMessage(AWinControl.Handle, SB_SETBKCOLOR, 0, ColorToRGB(AWinControl.Color));
end;
class procedure TWin32WSStatusBar.GetPreferredSize(const AWinControl: TWinControl;
var PreferredWidth, PreferredHeight: integer; WithThemeSpace: Boolean);
begin
if (PreferredStatusBarHeight = 0) then
InitializePreferredStatusBarHeight;
PreferredHeight := PreferredStatusBarHeight;
end;
class procedure TWin32WSStatusBar.DoSetPanelText(const AStatusBar: TStatusBar; PanelIndex: integer);
const
SB_SIMPLEID = $FF;
var
WParam: windows.WPARAM;
begin
if AStatusBar.SimplePanel then
begin
if AStatusBar.UseRightToLeftReading then
WParam := SB_SIMPLEID or SBT_RTLREADING
else
WParam := SB_SIMPLEID;
Windows.SendMessageW(AStatusBar.Handle, SB_SETTEXTW, WParam, LPARAM(PWideChar(UTF8ToUTF16(AStatusBar.SimpleText))));
end
else
UpdateStatusBarPanel(AStatusBar.Panels[PanelIndex]);
end;
class function TWin32WSStatusBar.GetUpdated(const AStatusBar: TStatusBar): Boolean;
begin
Result := Windows.GetProp(AStatusBar.Handle, 'lcl-statusbar-updated') = 1;
end;
class procedure TWin32WSStatusBar.SetUpdated(const AStatusBar: TStatusBar;
const Value: Boolean);
begin
Windows.SetProp(AStatusBar.Handle, 'lcl-statusbar-updated', Ord(Value));
end;
class procedure TWin32WSStatusBar.SetPanelText(const AStatusBar: TStatusBar; PanelIndex: integer);
begin
if AStatusBar.SimplePanel then
begin
SetUpdated(AStatusBar, False);
AStatusBar.Invalidate;
end
else
PanelUpdate(AStatusBar, PanelIndex);
end;
class procedure TWin32WSStatusBar.SetSizeGrip(const AStatusBar: TStatusBar;
SizeGrip: Boolean);
var
AStyle: Long;
begin
if not WSCheckHandleAllocated(AStatusBar, 'SetSizeGrip') then
Exit;
AStyle := GetWindowLong(AStatusBar.Handle, GWL_STYLE);
if ((AStyle and SBARS_SIZEGRIP) <> 0) <> (SizeGrip and AStatusBar.SizeGripEnabled) then
RecreateWnd(AStatusBar);
end;
class procedure TWin32WSStatusBar.SetText(const AWinControl: TWinControl;
const AText: string);
begin
// inhibit. StatusBars do not have a caption, simpletext is set by SetPanelText
end;
class procedure TWin32WSStatusBar.Update(const AStatusBar: TStatusBar);
var
i: integer;
begin
//debugln('TWin32WSStatusBar.Update');
Windows.SendMessage(AStatusBar.Handle, SB_SIMPLE, WPARAM(AStatusBar.SimplePanel), 0);
if not AStatusBar.SimplePanel then
begin
UpdateStatusBarPanelWidths(AStatusBar);
for i := 0 to AStatusBar.Panels.Count - 1 do
TStatusPanelAccess(AStatusBar.Panels[i]).FIntfFlag := 0;
end;
// To reduce statusbar flickering it is suggested to wait for WM_PAINT message and
// to set text there (http://msdn.microsoft.com/en-us/library/bb760728(VS.85).aspx)
// Lets do so. But changing text on WM_PAINT cause another invalidate. So to
// prevent endless repaint we need to check whether we already updated statusbar
SetUpdated(AStatusBar, False);
AStatusBar.Invalidate;
end;
function ProgressBarWndProc(Window: HWnd; Msg: UInt; WParam: Windows.WParam;
LParam: Windows.LParam): LResult; stdcall;
begin
// Marquee progress bar on vista/w7 required to call default window proc to
// setup the timer
if (Msg = WM_PAINT) and
(Win32WidgetSet.CommonControlsVersion >= ComCtlVersionIE6) and
(GetWindowLong(Window, GWL_STYLE) and PBS_MARQUEE = PBS_MARQUEE) then
CallDefaultWindowProc(Window, Msg, WParam, LParam);
Result := WindowProc(Window, Msg, WParam, LParam);
end;
{ TWin32WSProgressBar }
class function TWin32WSProgressBar.CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND;
var
Params: TCreateWindowExParams;
begin
// general initialization of Params
PrepareCreateWindow(AWinControl, AParams, Params);
// customization of Params
with Params do
begin
with TCustomProgressBar(AWinControl) do
begin
if Smooth then
Flags := Flags or PBS_SMOOTH;
if (Orientation = pbVertical) or (Orientation = pbTopDown) then
Flags := Flags or PBS_VERTICAL;
if (Win32WidgetSet.CommonControlsVersion >= ComCtlVersionIE6) and
(Style = pbstMarquee) then
Flags := Flags or PBS_MARQUEE;
end;
pClassName := PROGRESS_CLASS;
SubClassWndProc := @ProgressBarWndProc;
end;
// create window
FinishCreateWindow(AWinControl, Params, False);
Result := Params.Window;
if (Win32WidgetSet.CommonControlsVersion >= ComCtlVersionIE6) and
(TCustomProgressBar(AWinControl).Style = pbstMarquee) then
SendMessage(Result, PBM_SETMARQUEE, WParam(LongBool(True)), DefMarqueeTime);
end;
class procedure TWin32WSProgressBar.ApplyChanges(
const AProgressBar: TCustomProgressBar);
begin
with AProgressBar do
begin
{ smooth and vertical need window recreation }
if ((GetWindowLong(Handle, GWL_STYLE) and PBS_SMOOTH ) <>
PtrInt(Smooth) * PBS_SMOOTH) or
((GetWindowLong(Handle, GWL_STYLE) and PBS_VERTICAL) <>
PtrInt((Orientation = pbVertical) or (Orientation = pbTopDown)) * PBS_VERTICAL) then
RecreateWnd(AProgressBar);
SendMessage(Handle, PBM_SETRANGE32, Min, Max);
SendMessage(Handle, PBM_SETPOS, Position, 0);
{ TODO: Implementable?
If BarShowText Then
Begin
SetWindowText(Handle, StrToPChar((Sender As TControl).Caption));
End
Else
SetWindowText(Handle, Nil);
}
end;
end;
class procedure TWin32WSProgressBar.SetPosition(
const AProgressBar: TCustomProgressBar; const NewPosition: integer);
begin
Windows.SendMessage(AProgressBar.Handle, PBM_SETPOS, Windows.WPARAM(NewPosition), 0);
end;
class procedure TWin32WSProgressBar.SetStyle(
const AProgressBar: TCustomProgressBar; const NewStyle: TProgressBarStyle);
var
Style: DWord;
begin
if not WSCheckHandleAllocated(AProgressBar, 'SetStyle') then
Exit;
if (Win32WidgetSet.CommonControlsVersion >= ComCtlVersionIE6) then
begin
// Comctl32 >= 6
Style := GetWindowLong(AProgressBar.Handle, GWL_STYLE);
if NewStyle = pbstMarquee then
Style := Style or PBS_MARQUEE
else
Style := Style and not PBS_MARQUEE;
SetWindowLong(AProgressBar.Handle, GWL_STYLE, Style);
SendMessage(AProgressBar.Handle, PBM_SETMARQUEE, Ord(NewStyle = pbstMarquee), DefMarqueeTime);
if NewStyle = pbstNormal then
SetPosition(AProgressBar, AProgressBar.Position);
end;
end;
class function TWin32WSProgressBar.GetConstraints(const AControl: TControl;
const AConstraints: TObject): Boolean;
var
SizeConstraints: TSizeConstraints absolute AConstraints;
MinWidth, MinHeight, MaxWidth, MaxHeight: Integer;
begin
Result := True;
if (AConstraints is TSizeConstraints) then
begin
MinWidth := 0;
MinHeight := 0;
MaxWidth := 0;
MaxHeight := 0;
// The ProgressBar needs a minimum Height of 10 on Windows XP when themed,
// as required by Windows, otherwise it's image is corrupted
if (Win32MajorVersion < 6) and ThemeServices.ThemesEnabled then
MinHeight := 10;
SizeConstraints.SetInterfaceConstraints(MinWidth, MinHeight, MaxWidth, MaxHeight);
end;
end;
{ TWin32WSToolbar}
{$ifdef OldToolbar}
class function TWin32WSToolBar.CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND;
var
Params: TCreateWindowExParams;
begin
// general initialization of Params
PrepareCreateWindow(AWinControl, AParams, Params);
// customization of Params
with Params do
begin
pClassName := TOOLBARCLASSNAME;
Flags := Flags or CCS_ADJUSTABLE;
end;
// create window
FinishCreateWindow(AWinControl, Params, false);
Result := Params.Window;
end;
class function TWin32WSToolbar.GetButtonCount(const AToolBar: TToolBar): integer;
begin
Result := SendMessage(AToolbar.Handle, TB_BUTTONCOUNT, 0, 0)
end;
class procedure TWin32WSToolbar.InsertToolButton(const AToolBar: TToolbar; const AControl: TControl);
var
PStr, PStr2: PChar;
Num: Integer;
TBB: TBBUTTON;
begin
// TODO: check correctness / clean up
If (AControl is TWinControl) Then
Begin
PStr := StrAlloc(Length(TToolButton(AControl).Caption) + 1);
StrPCopy(PStr, TToolButton(AControl).Caption);
PStr2 := StrAlloc(Length(TControl(AControl).Hint) + 1);
StrPCopy(PStr2, TControl(AControl).Hint);
End
Else
Begin
Raise Exception.Create('Can not assign this control to the toolbar');
Exit;
End;
Num := TToolbar(TWinControl(AControl).Parent).Buttonlist.IndexOf(TControl(AControl));
If Num < 0 Then
Num := TToolbar(TWinControl(AControl).Parent).Buttonlist.Count + 1;
With tbb Do
Begin
iBitmap := Num;
idCommand := Num;
fsState := TBSTATE_ENABLED;
fsStyle := TBSTYLE_BUTTON;
iString := Integer(PStr);
End;
SendMessage(TWinControl(AControl).Parent.Handle, TB_BUTTONSTRUCTSIZE, SizeOf(TBBUTTON), 0);
SendMessage(TWinControl(AControl).Parent.Handle, TB_ADDBUTTONS, 1, LParam(LPTBButton(@tbb)));
StrDispose(pStr);
StrDispose(pStr2);
end;
class procedure TWin32WSToolbar.DeleteToolButton(const AToolBar: TToolbar; const AControl: TControl);
begin
// TODO: code buggy, Index of button to delete ?!
SendMessage(AToolBar.Handle, TB_DELETEBUTTON, 0, 0);
end;
{$endif}
function TrackBarParentMsgHandler(const AWinControl: TWinControl; Window: HWnd;
Msg: UInt; WParam: Windows.WParam; LParam: Windows.LParam;
var MsgResult: Windows.LResult; var WinProcess: Boolean): Boolean;
var
Info: PWin32WindowInfo;
Message: TLMessage;
begin
Result := False;
case Msg of
WM_HSCROLL,
WM_VSCROLL:
begin
MsgResult := CallDefaultWindowProc(Window, Msg, WParam, LParam);
Info := GetWin32WindowInfo(HWND(LParam));
if Assigned(Info^.WinControl) then
begin
Message.msg := LM_CHANGED;
Message.wParam := 0;
Message.lParam := 0;
Message.Result := 0;
//debugln('LOWORD(WPARAM)=%d, HIWORD(WPARAM)=%d', [LOWORD(WParam), HIWORD(WPARAM)]);
if TWin32WSTrackBar.GetPosition(TCustomTrackBar(Info^.WinControl))<>TCustomTrackBar(Info^.WinControl).Position then
DeliverMessage(Info^.WinControl, Message);
end;
Result := True;
end;
end;
end;
{ TWin32WSTrackBar }
class function TWin32WSTrackBar.CreateHandle(const AWinControl: TWinControl;
const AParams: TCreateParams): HWND;
var
Params: TCreateWindowExParams;
begin
// general initialization of Params
PrepareCreateWindow(AWinControl, AParams, Params);
// customization of Params
with Params do
begin
pClassName := TRACKBAR_CLASS;
WindowTitle := StrCaption;
end;
// create window
FinishCreateWindow(AWinControl, Params, false);
Params.WindowInfo^.ParentMsgHandler := @TrackBarParentMsgHandler;
Params.WindowInfo^.ThemedCustomDraw := true;
Result := Params.Window;
end;
class procedure TWin32WSTrackBar.DefaultWndHandler(
const AWinControl: TWinControl; var AMessage);
var
WindowInfo: PWin32WindowInfo;
Control: TWinControl;
FocusBorderWidth,
FocusBorderHeight, Offset: Integer;
R: TRect;
Rgn: HRGN;
Details: TThemedElementDetails;
NMHdr: PNMHDR;
begin
// Paul: next is a slightly modified code of TThemeManager.TrackBarWindowProc
// of Mike Lischke Theme manager library (Mike granted us permition to use his code)
with TLMessage(AMessage) do
case Msg of
CN_NOTIFY:
if ThemeServices.ThemesEnabled then
begin
NMHdr := PNMHDR(LParam);
if NMHdr^.code = NM_CUSTOMDRAW then
begin
WindowInfo := GetWin32WindowInfo(PNMHdr(LParam)^.hwndFrom);
Control := WindowInfo^.WinControl;
case PNMCustomDraw(LParam)^.dwDrawStage of
CDDS_PREPAINT:
begin
Result := CDRF_NOTIFYITEMDRAW;
end;
CDDS_ITEMPREPAINT:
begin
case PNMCustomDraw(LParam)^.dwItemSpec of
TBCD_TICS: // Before re-painting ticks redo whole background.
begin
R := Control.ClientRect;
// Leave room for the focus rectangle if there is one.
if Control.Focused and
((Control.Perform(WM_QUERYUISTATE, 0, 0) and UISF_HIDEFOCUS) = 0) then
begin
SystemParametersInfo(SPI_GETFOCUSBORDERWIDTH, 0, @FocusBorderWidth, 0);
SystemParametersInfo(SPI_GETFOCUSBORDERHEIGHT, 0, @FocusBorderHeight, 0);
InflateRect(R, -FocusBorderWidth, -FocusBorderHeight);
end;
ThemeServices.DrawParentBackground(AWinControl.Handle, PNMCustomDraw(LParam)^.hDC, nil, False, @R);
end;
TBCD_CHANNEL:
begin
// Retrieve the bounding box for the thumb.
SendMessage(AWinControl.Handle, TBM_GETTHUMBRECT, 0, PtrInt(@R));
// Extend this rectangle to the top/bottom or left/right border, respectively.
Offset := 0;
if TCustomTrackBar(Control).Orientation = trHorizontal then
begin
// Leave room for the focus rectangle if there is one.
if Control.Focused then
begin
SystemParametersInfo(SPI_GETFOCUSBORDERWIDTH, 0, @FocusBorderWidth, 0);
Inc(Offset, FocusBorderWidth);
end;
R.Left := Control.ClientRect.Left + Offset;
R.Right := Control.ClientRect.Right - Offset;
end
else
begin
// Leave room for the focus rectangle if there is one.
if Control.Focused then
begin
SystemParametersInfo(SPI_GETFOCUSBORDERHEIGHT, 0, @FocusBorderHeight, 0);
Inc(Offset, FocusBorderHeight);
end;
R.Top := Control.ClientRect.Top + Offset;
R.Bottom := Control.ClientRect.Bottom - Offset;
end;
Rgn := CreateRectRgn(R.Left, R.Top, R.Right, R.Bottom);
SelectClipRgn(PNMCustomDraw(LParam)^.hDC, Rgn);
Details := ThemeServices.GetElementDetails(ttbThumbTics);
ThemeServices.DrawParentBackground(AWinControl.Handle, PNMCustomDraw(LParam)^.hDC, @Details, False);
DeleteObject(Rgn);
SelectClipRgn(PNMCustomDraw(LParam)^.hDC, 0);
end;
end;
Result := CDRF_DODEFAULT;
end;
end;
end;
end
else
inherited DefaultWndHandler(AWinControl, AMessage);
else
inherited DefaultWndHandler(AWinControl, AMessage);
end;
end;
class procedure TWin32WSTrackBar.ApplyChanges(const ATrackBar: TCustomTrackBar);
var
wHandle: HWND;
NewStyle: integer;
lTickStyle: DWORD;
const
StyleMask = TBS_AUTOTICKS or TBS_NOTICKS or TBS_VERT or TBS_TOP or TBS_BOTH or
TBS_ENABLESELRANGE or TBS_REVERSED;
TickStyleStyle: array[TTickStyle] of DWORD = (TBS_NOTICKS, TBS_AUTOTICKS, 0);
OrientationStyle: array[TTrackBarOrientation] of DWORD = (TBS_HORZ, TBS_VERT);
TickMarksStyle: array[TTickMark] of DWORD = (TBS_BOTTOM, TBS_TOP, TBS_BOTH);
SelRangeStyle: array[Boolean] of DWORD = (0, TBS_ENABLESELRANGE);
ReversedStyle: array[Boolean] of DWORD = (0, TBS_REVERSED);
begin
with ATrackBar do
begin
{ cache handle }
wHandle := Handle;
lTickStyle := TickStyleStyle[TickStyle];
{$IFNDEF WIN32}
if Max - Min > $7FFF then // Workaround for #36046:
lTickStyle := 0; // No ticks to avoid hanging if range is too large
{$ENDIF}
NewStyle := lTickStyle or OrientationStyle[Orientation] or
TickMarksStyle[TickMarks] or SelRangeStyle[ShowSelRange] or ReversedStyle[Reversed];
UpdateWindowStyle(wHandle, NewStyle, StyleMask);
Windows.SendMessage(wHandle, TBM_SETRANGEMAX, Windows.WPARAM(True), Max);
Windows.SendMessage(wHandle, TBM_SETRANGEMIN, Windows.WPARAM(True), Min);
if Reversed then
Windows.SendMessage(wHandle, TBM_SETPOS, Windows.WPARAM(True), Max + Min - Position)
else
Windows.SendMessage(wHandle, TBM_SETPOS, Windows.WPARAM(True), Position);
Windows.SendMessage(wHandle, TBM_SETLINESIZE, 0, LineSize);
Windows.SendMessage(wHandle, TBM_SETPAGESIZE, 0, PageSize);
Windows.SendMessage(wHandle, TBM_SETTICFREQ, Frequency, 0);
if ((SelStart = 0) and (SelEnd = 0)) or not ShowSelRange then
Windows.SendMessage(wHandle, TBM_CLEARSEL, Windows.WPARAM(True), 0)
else
begin
Windows.SendMessage(wHandle, TBM_SETSELSTART, Windows.WParam(False), SelStart);
Windows.SendMessage(wHandle, TBM_SETSELEND, Windows.WParam(True), SelEnd)
end;
end;
end;
class function TWin32WSTrackBar.GetPosition(const ATrackBar: TCustomTrackBar): integer;
begin
Result := SendMessage(ATrackBar.Handle, TBM_GETPOS, 0, 0);
if (GetWindowLong(ATrackBar.Handle, GWL_STYLE) and TBS_REVERSED) <> 0 then
Result := ATrackBar.Max + ATrackBar.Min - Result;
end;
class procedure TWin32WSTrackBar.SetPosition(const ATrackBar: TCustomTrackBar; const NewPosition: integer);
begin
if (GetWindowLong(ATrackBar.Handle, GWL_STYLE) and TBS_REVERSED) <> 0 then
Windows.SendMessage(ATrackBar.Handle, TBM_SETPOS, Windows.WPARAM(true), Windows.LPARAM(ATrackBar.Max + ATrackBar.Min - NewPosition))
else
Windows.SendMessage(ATrackBar.Handle, TBM_SETPOS, Windows.WPARAM(true), Windows.LPARAM(NewPosition));
end;
class procedure TWin32WSTrackBar.SetTick(const ATrackBar: TCustomTrackBar;
const ATick: integer);
begin
Windows.SendMessage(ATrackBar.Handle, TBM_SETTIC, 0, Windows.LPARAM(ATick));
end;
end.
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