chart2/source/view/inc/MinimumAndMaximumSupplier.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
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   9  * This file incorporates work covered by the following license notice:
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <sal/types.h>
  23 #include <tools/date.hxx>
  24 #include <tools/long.hxx>
  25 #include <set>
  26
  27 namespace chart
  28 {
  29
  30 class MinimumAndMaximumSupplier
  31 {
  32 public:
  33     virtual double getMinimumX() = 0;
  34     virtual double getMaximumX() = 0;
  35
  36     //problem y maybe not is always the second border to ask for
  37     virtual double getMinimumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex ) = 0;
  38     virtual double getMaximumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex ) = 0;
  39
  40     //problem: z maybe not independent in future
  41     virtual double getMinimumZ() = 0;
  42     virtual double getMaximumZ() = 0;
  43
  44     virtual bool isExpandBorderToIncrementRhythm( sal_Int32 nDimensionIndex ) = 0;
  45     virtual bool isExpandIfValuesCloseToBorder( sal_Int32 nDimensionIndex ) = 0;
  46     virtual bool isExpandWideValuesToZero( sal_Int32 nDimensionIndex ) = 0;
  47     virtual bool isExpandNarrowValuesTowardZero( sal_Int32 nDimensionIndex ) = 0;
  48     virtual bool isSeparateStackingForDifferentSigns( sal_Int32 nDimensionIndex ) = 0;
  49
  50     //return a constant out of css::chart::TimeUnit that allows to display the smallest distance between occurring dates
  51     virtual tools::Long calculateTimeResolutionOnXAxis() = 0;
  52     virtual void setTimeResolutionOnXAxis( tools::Long nTimeResolution, const Date& rNullDate ) = 0;
  53
  54 protected:
  55     ~MinimumAndMaximumSupplier() {}
  56 };
  57
  58 class MergedMinimumAndMaximumSupplier final : public MinimumAndMaximumSupplier
  59 {
  60 public:
  61     MergedMinimumAndMaximumSupplier();
  62     virtual ~MergedMinimumAndMaximumSupplier();
  63
  64     void addMinimumAndMaximumSupplier( MinimumAndMaximumSupplier* pMinimumAndMaximumSupplier );
  65     bool hasMinimumAndMaximumSupplier( MinimumAndMaximumSupplier* pMinimumAndMaximumSupplier );
  66     void clearMinimumAndMaximumSupplierList();
  67
  68     //--MinimumAndMaximumSupplier
  69     virtual double getMinimumX() override;
  70     virtual double getMaximumX() override;
  71     virtual double getMinimumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex ) override;
  72     virtual double getMaximumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex ) override;
  73     virtual double getMinimumZ() override;
  74     virtual double getMaximumZ() override;
  75
  76     virtual bool isExpandBorderToIncrementRhythm( sal_Int32 nDimensionIndex ) override;
  77     virtual bool isExpandIfValuesCloseToBorder( sal_Int32 nDimensionIndex ) override;
  78     virtual bool isExpandWideValuesToZero( sal_Int32 nDimensionIndex ) override;
  79     virtual bool isExpandNarrowValuesTowardZero( sal_Int32 nDimensionIndex ) override;
  80     virtual bool isSeparateStackingForDifferentSigns( sal_Int32 nDimensionIndex ) override;
  81
  82     virtual tools::Long calculateTimeResolutionOnXAxis() override;
  83     virtual void setTimeResolutionOnXAxis( tools::Long nTimeResolution, const Date& rNullDate ) override;
  84
  85 private:
  86     typedef std::set< MinimumAndMaximumSupplier* > MinimumAndMaximumSupplierSet;
  87     MinimumAndMaximumSupplierSet m_aMinimumAndMaximumSupplierList;
  88 };
  89
  90 } //namespace chart
  91
  92 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */