MessageWindow.h

// Copyright (c) 2013 by István Váradi
 
// This file is part of XPLRA, a remote-access plugin for X-Plane
 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
 
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
// The views and conclusions contained in the software and documentation are those
// of the authors and should not be interpreted as representing official policies,
// either expressed or implied, of the FreeBSD Project.
 
#ifndef XPLRA_MESSAGEWINDOW_H
#define XPLRA_MESSAGEWINDOW_H
//------------------------------------------------------------------------------
 
#include <hu/varadiistvan/scpl/Mutex.h>
 
#include <string>
 
#include <XPLMDataAccess.h>
#include <XPLMDisplay.h>
 
//------------------------------------------------------------------------------
 
namespace xplra {
 
//------------------------------------------------------------------------------
 
class MessageWindow
{
private:
    static void drawWindowCallback(XPLMWindowID windowID, void* refCon);
 
    static void handleKeyCallback(XPLMWindowID windowID, char key,
                                  XPLMKeyFlags flags, char virtualKey,
                                  void* refCon, int losingFocus);
 
    static int handleMouseClickCallback(XPLMWindowID windowID, int x, int y,
                                        XPLMMouseStatus mouse, void* refCon);
 
 
    static const int minimalWidth = 150;
 
    static const int resizeArea = 50;
 
    static const int horizontalMarginSize = 25;
 
    static const int verticalMarginSize = 5;
 
    static const int baseLineSize = 2;
 
    static constexpr float scrollTimeout = 1.0;
 
    static constexpr float scrollInterval = 0.1;
 
private:
    XPLMDataRef widthDataRef;
 
    XPLMDataRef heightDataRef;
 
    int fontWidth;
 
    int fontHeight;
 
    XPLMWindowID windowID;
 
    int left;
 
    int top;
 
    int right;
 
    int bottom;
 
    size_t maxMessageLength;
 
    bool showForced;
 
    std::string displayedMessage;
 
    float showTime;
 
    float hideTime;
 
    enum {
        // Move the message area
        MOUSE_MOVE,
 
        // Resize the message area from the left
        MOUSE_RESIZE_LEFT,
 
        // Resize the message area from the right.
        MOUSE_RESIZE_RIGHT
    } mouseMode;
 
    int clickedX;
 
    int clickedY;
 
    int clickedLeft;
 
    int clickedTop;
 
    int clickedRight;
 
    int clickedBottom;
 
    hu::varadiistvan::scpl::Mutex mutex;
 
    std::string message;
 
    float duration;
 
public:
    MessageWindow();
 
    ~MessageWindow();
 
    void show();
 
    void hide();
 
    void reset();
 
private:
    void drawWindow();
 
    void handleKey(char key, XPLMKeyFlags flags, char virtualKey,
                   bool losingFocus);
 
    bool handleMouseClick(int x, int y, XPLMMouseStatus mouse);
 
    float getNewMessage(std::string& dest);
 
    void setNewMessage(const std::string& msg, float d);
 
    void resetLocation();
 
    void recalculateMaxMessageLength();
 
    friend class MessageRequest;
};
 
//------------------------------------------------------------------------------
 
} /* namespace xplra */
 
//------------------------------------------------------------------------------
#endif // XPLRA_MESSAGEWINDOW_H
 
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