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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you 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 .
*/
#ifndef INCLUDED_VCL_CALENDAR_HXX
#define INCLUDED_VCL_CALENDAR_HXX
#include <vcl/dllapi.h>
#include <unotools/calendarwrapper.hxx>
#include <vcl/ctrl.hxx>
#include <memory>
#include <set>
class MouseEvent;
class TrackingEvent;
class KeyEvent;
class HelpEvent;
class DataChangedEvent;
/*************************************************************************
Description
============
class Calendar
This class allows for the selection of a date. The displayed date range is
the one specified by the Date class. We display as many months as we have
space in the control. The user can switch between months using a ContextMenu
(clicking on the month's name) or via two ScrollButtons in-between the months.
--------------------------------------------------------------------------
WinBits
WB_BORDER We draw a border around the window.
WB_TABSTOP Keyboard control is possible. We get the focus, when
the user clicks in the Control.
--------------------------------------------------------------------------
We set and get the selected date by SetCurDate()/GetCurDate().
If the user selects a date Select() is called. If the user double clicks
DoubleClick() is called.
--------------------------------------------------------------------------
CalcWindowSizePixel() calculates the window size in pixel that is needed
to display a certain number of months.
--------------------------------------------------------------------------
SetSaturdayColor() and SetSundayColor() set a special color for Saturdays
and Sundays.
AddDateInfo() marks special days. With that we can set e.g. public holidays
to another color or encircle them (for e.g. appointments).
If we do not supply a year in the date, the day is used in EVERY year.
AddDateInfo() can also add text for every date, which is displayed if the
BalloonHelp is enabled.
In order to not have to supply all years with the relevant data, we call
the RequestDateInfo() handler if a new year is displayed. We can then query
the year in the handler with GetRequestYear().
--------------------------------------------------------------------------
In order to display a ContextMenu for a date, we need to override the
Command handler. GetDate() can infer the date from the mouse's position.
If we use the keyboard, the current date should be use.
If a ContextMenu is displayed, the baseclass' handler must not be called.
--------------------------------------------------------------------------
SetNoSelection() deselects everything.
SetCurDate() does not select the current date, but only defines the focus
rectangle.
GetSelectDateCount()/GetSelectDate() query the selected range.
IsDateSelected() queries for the status of a date.
The SelectionChanging() handler is being called while a user selects a
date. In it, we can change the selected range. E.g. if we want to limit
or extend the selected range. The selected range is realised via SelectDate()
and SelectDateRange() and queried with GetSelectDateCount()/GetSelectDate().
IsSelectLeft() returns the direction of the selection:
sal_True is a selection to the left or up
sal_False is a selection to the right or down
--------------------------------------------------------------------------
If the DateRange area changes and we want to take over the selection, we
should only do this is if IsScrollDateRangeChanged() returns sal_True.
This method returns sal_True if the area change was triggered by using the
ScrollButtons and sal_False if it was triggered by Resize(), other method
calls or by ending a selection.
*************************************************************************/
typedef std::set<sal_Int32> IntDateSet;
class Calendar final : public Control
{
std::unique_ptr<IntDateSet> mpSelectTable;
std::unique_ptr<IntDateSet> mpOldSelectTable;
OUString maDayTexts[31];
OUString maDayText;
OUString maWeekText;
CalendarWrapper maCalendarWrapper;
tools::Rectangle maPrevRect;
tools::Rectangle maNextRect;
OUString maDayOfWeekText;
long mnDayOfWeekAry[7];
Date maOldFormatFirstDate;
Date maOldFormatLastDate;
Date maFirstDate;
Date maOldFirstDate;
Date maCurDate;
Date maOldCurDate;
Color maSelColor;
Color maOtherColor;
sal_Int32 mnDayCount;
long mnDaysOffX;
long mnWeekDayOffY;
long mnDaysOffY;
long mnMonthHeight;
long mnMonthWidth;
long mnMonthPerLine;
long mnLines;
long mnDayWidth;
long mnDayHeight;
WinBits mnWinStyle;
sal_Int16 mnFirstYear;
sal_Int16 mnLastYear;
bool mbCalc:1,
mbFormat:1,
mbDrag:1,
mbMenuDown:1,
mbSpinDown:1,
mbPrevIn:1,
mbNextIn:1;
Link<Calendar*,void> maSelectHdl;
Link<Calendar*,void> maActivateHdl;
using Control::ImplInitSettings;
using Window::ImplInit;
void ImplInit( WinBits nWinStyle );
void ImplInitSettings();
virtual void ApplySettings(vcl::RenderContext& rRenderContext) override;
void ImplFormat();
using Window::ImplHitTest;
sal_uInt16 ImplHitTest( const Point& rPos, Date& rDate ) const;
void ImplDrawSpin(vcl::RenderContext& rRenderContext);
void ImplDrawDate(vcl::RenderContext& rRenderContext, long nX, long nY,
sal_uInt16 nDay, sal_uInt16 nMonth, sal_Int16 nYear,
bool bOther, sal_Int32 nToday);
void ImplDraw(vcl::RenderContext& rRenderContext);
void ImplUpdateDate( const Date& rDate );
void ImplUpdateSelection( IntDateSet* pOld );
void ImplMouseSelect( const Date& rDate, sal_uInt16 nHitTest );
void ImplUpdate( bool bCalcNew = false );
using Window::ImplScroll;
void ImplScroll( bool bPrev );
void ImplShowMenu( const Point& rPos, const Date& rDate );
void ImplTracking( const Point& rPos, bool bRepeat );
void ImplEndTracking( bool bCancel );
DayOfWeek ImplGetWeekStart() const;
virtual Size GetOptimalSize() const override;
public:
Calendar( vcl::Window* pParent, WinBits nWinStyle );
virtual ~Calendar() override;
virtual void dispose() override;
virtual void MouseButtonDown( const MouseEvent& rMEvt ) override;
virtual void Tracking( const TrackingEvent& rMEvt ) override;
virtual void KeyInput( const KeyEvent& rKEvt ) override;
virtual void Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect ) override;
virtual void Resize() override;
virtual void GetFocus() override;
virtual void LoseFocus() override;
virtual void RequestHelp( const HelpEvent& rHEvt ) override;
virtual void Command( const CommandEvent& rCEvt ) override;
virtual void StateChanged( StateChangedType nStateChange ) override;
virtual void DataChanged( const DataChangedEvent& rDCEvt ) override;
void Select();
Date GetFirstSelectedDate() const;
void SetCurDate( const Date& rNewDate );
void SetFirstDate( const Date& rNewFirstDate );
const Date& GetFirstDate() const { return maFirstDate; }
Date GetLastDate() const { return GetFirstDate() + mnDayCount; }
Date GetFirstMonth() const;
Date GetLastMonth() const;
sal_uInt16 GetMonthCount() const;
bool GetDate( const Point& rPos, Date& rDate ) const;
tools::Rectangle GetDateRect( const Date& rDate ) const;
void EndSelection();
Size CalcWindowSizePixel() const;
void SetSelectHdl( const Link<Calendar*,void>& rLink ) { maSelectHdl = rLink; }
void SetActivateHdl( const Link<Calendar*,void>& rLink ) { maActivateHdl = rLink; }
};
#endif // INCLUDED_VCL_CALENDAR_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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