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| -rw-r--r-- | vcl/inc/calendar.hxx | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/vcl/inc/calendar.hxx b/vcl/inc/calendar.hxx new file mode 100644 index 0000000000..b727039cee --- /dev/null +++ b/vcl/inc/calendar.hxx @@ -0,0 +1,228 @@ +/* -*- 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 <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; + sal_Int32 mnDayOfWeekAry[8]; + Date maOldFormatFirstDate; + Date maOldFormatLastDate; + Date maFirstDate; + Date maOldFirstDate; + Date maCurDate; + Date maOldCurDate; + Color maSelColor; + Color maOtherColor; + sal_Int32 mnDayCount; + tools::Long mnDaysOffX; + tools::Long mnWeekDayOffY; + tools::Long mnDaysOffY; + tools::Long mnMonthHeight; + tools::Long mnMonthWidth; + tools::Long mnMonthPerLine; + tools::Long mnLines; + tools::Long mnDayWidth; + tools::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(); + sal_uInt16 ImplDoHitTest( const Point& rPos, Date& rDate ) const; + void ImplDrawSpin(vcl::RenderContext& rRenderContext); + void ImplDrawDate(vcl::RenderContext& rRenderContext, tools::Long nX, tools::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 ); + void ImplScrollCalendar( 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; } + + virtual void DumpAsPropertyTree(tools::JsonWriter&) override; +}; + +#endif // INCLUDED_VCL_CALENDAR_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |