SelectionFigure.cc

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
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    Software is furnished to do so, subject to the following conditions:
 
    The above copyright notice and this permission notice shall be included in
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    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/**
 * @file SelectToolFigure.cc
 *
 * Definition of SelectionFigure class.
 *
 * @author Veli-Pekka Jääskeläinen 2004 (vjaaskel-no.spam-cs.tut.fi)
 * @note rating: red
 */
 
#include "SelectionFigure.hh"
 
#if wxCHECK_VERSION(3, 0, 0)
#include <wx/dcsvg.h>   // wxSVGFileDC only available in wxwidgets 3.*
#endif
 
const int SelectionFigure::SELECT_BOX_MARGIN = 4;
 
 
/**
 * The Constructor.
 *
 * @param selection Figure of the selected EditPart.
 */
SelectionFigure::SelectionFigure(Figure* selection):
    Figure(), selection_(selection) {
}
 
/**
 * The Destructor.
 */
SelectionFigure::~SelectionFigure() {
}
 
/**
 * Draws the selection's figure on the given device context.
 */
void
SelectionFigure::drawSelf(wxDC* dc) {
    // wxWidgets implementation of SVGFileDC doesnt support dashed lines, so
    // we draw solid blue line when some item is selected when saving to *.svg
    bool isSVGcontext = false;
 
#if wxCHECK_VERSION(3, 0, 0)
    if (dynamic_cast<wxSVGFileDC*> (dc)) {
        isSVGcontext = true;
    }
#endif
 
    // Draw blue rectangles around selected EditParts figures.
    if (selection_ != NULL) {
 
        wxPen pen = wxPen(wxColour(0,0,255), 2, wxSHORT_DASH);
        if (isSVGcontext) {
            pen.SetStyle(wxSOLID);
        }
        wxBrush brush = wxBrush(wxColor(0,0,0), wxTRANSPARENT);
        dc->SetBrush(brush);
        dc->SetPen(pen);
        wxRect bounds = selection_->bounds();
        dc->DrawRectangle(
            bounds.GetX()-SELECT_BOX_MARGIN,
            bounds.GetY()-SELECT_BOX_MARGIN,
            bounds.GetWidth() + 2*SELECT_BOX_MARGIN,
            bounds.GetHeight() + 2*SELECT_BOX_MARGIN);
    }
}
 
 
/**
 * Set the selected figure.
 *
 * Selection figure will be drawn around the selected figure.
 *
 * @param selection Figure of the selected part.
 */
void
SelectionFigure::setSelection(Figure* selection) {
    selection_ = selection;
}
 
 
/**
 * Returns the Figure's bounding rectangle.
 *
 * @return Figure's bounding rectangle.
 */
wxRect
SelectionFigure::bounds() const {
    if (selection_ == NULL) {
        return wxRect(0, 0, 0, 0);
    }
    wxRect bounds = selection_->bounds();
    bounds.Offset(SELECT_BOX_MARGIN * -2, SELECT_BOX_MARGIN);
    bounds.Inflate(SELECT_BOX_MARGIN * 4);
    return bounds;
}