| 1 | /*************************************************************************** |
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| 2 | * Copyright (C) 2009 by Guy Rutenberg * |
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| 3 | * guyrutenberg@gmail.com * |
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| 4 | * * |
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| 5 | * This program is free software; you can redistribute it and/or modify * |
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| 6 | * it under the terms of the GNU General Public License as published by * |
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| 7 | * the Free Software Foundation; either version 2 of the License, or * |
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| 8 | * (at your option) any later version. * |
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| 9 | * * |
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| 10 | * This program is distributed in the hope that it will be useful, * |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 13 | * GNU General Public License for more details. * |
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| 14 | * * |
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| 15 | * You should have received a copy of the GNU General Public License * |
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| 16 | * along with this program; if not, write to the * |
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| 17 | * Free Software Foundation, Inc., * |
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| 18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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| 19 | ***************************************************************************/ |
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| 20 | |
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| 21 | #include <wx/wx.h> |
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| 22 | #include <vector> |
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| 23 | |
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| 24 | #ifndef SIMPLE_HISTOGRAM_INC |
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| 25 | #define SIMPLE_HISTOGRAM_INC |
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| 26 | |
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| 27 | namespace simple_pie_plot { |
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| 28 | |
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| 29 | class SimplePiePlot : public wxPanel { |
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| 30 | public: |
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| 31 | SimplePiePlot (wxWindow* parent, wxWindowID id, |
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| 32 | const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, |
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| 33 | long style = wxNO_BORDER, const wxString& name = wxPanelNameStr); |
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| 34 | void SetData(std::vector<double> d, std::vector<wxString> labels); |
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| 35 | void OnPaint(wxPaintEvent& event); |
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| 36 | void OnResize(wxSizeEvent& event); |
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| 37 | void OnMouseLeaveWindow(wxMouseEvent& event); |
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| 38 | void OnMouseMove(wxMouseEvent& event); |
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| 39 | wxSize GetMinSize() const; |
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| 40 | private: |
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| 41 | /** |
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| 42 | * Gets the color suiting the \a i th segment. |
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| 43 | * \param i The segment number. |
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| 44 | */ |
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| 45 | wxColour GetSegmentColor(int i); |
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| 46 | |
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| 47 | /** |
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| 48 | * Calculate the angles in the plot and populate the m_angles array. |
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| 49 | */ |
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| 50 | void CalculateAngles(); |
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| 51 | |
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| 52 | /** |
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| 53 | * Calculate the maximum widht and height for a label in the legend. |
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| 54 | */ |
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| 55 | void CalculateLegendDimensions(wxGraphicsContext *dc); |
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| 56 | |
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| 57 | /** |
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| 58 | * Calculate the location and radius of the pie plot. |
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| 59 | */ |
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| 60 | void CalculatePiePlotLocation(); |
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| 61 | |
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| 62 | void DrawLegend(wxGraphicsContext *dc); |
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| 63 | |
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| 64 | void Highlight(int i); |
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| 65 | void ClearHighlight(); |
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| 66 | |
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| 67 | std::vector<double> m_data; |
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| 68 | std::vector<wxString> m_labels; |
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| 69 | std::vector<double> m_angles; |
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| 70 | double m_data_total; |
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| 71 | int m_highlight; |
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| 72 | |
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| 73 | /// maximum width for a label in the legend. |
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| 74 | double m_max_legend_width; |
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| 75 | /// maximum height for a label in the legend. |
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| 76 | double m_max_legend_height; |
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| 77 | /// total width of the legend |
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| 78 | double m_legend_width; |
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| 79 | /// the line height of each legend entry including padding |
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| 80 | double m_legend_line_height; |
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| 81 | |
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| 82 | static const double m_legend_left_padding = 10; |
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| 83 | |
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| 84 | // The center point of the pie plot |
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| 85 | double m_pie_x; |
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| 86 | double m_pie_y; |
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| 87 | double m_radius; |
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| 88 | |
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| 89 | }; |
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| 90 | |
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| 91 | } // namespace |
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| 92 | |
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| 93 | #endif |
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