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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* canvas.h
*
* Tue Nov 10 08:37:37 CET 2009
* Copyright 2009 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* DrumGizmo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#ifndef __DRUMGIZMO_CANVAS_H__
#define __DRUMGIZMO_CANVAS_H__
#include <QWidget>
#include <QColor>
#include <QImage>
#include "selection.h"
class Canvas : public QWidget {
Q_OBJECT
public:
Canvas(QWidget *parent);
~Canvas();
void load(QString file);
Selections selections();
signals:
public slots:
void setXScale(float scale);
void setYScale(float scale);
void setXOffset(float scroll);
void setYOffset(float scroll);
void autoCreateSelections();
void clearSelections();
protected:
void mouseMoveEvent(QMouseEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
void resizeEvent(QResizeEvent *event);
void paintEvent(QPaintEvent *event);
void keyReleaseEvent(QKeyEvent *event);
private:
void updateWav();
void getWavValues(int last, int lx, float *vu, float *vl, float *avgu, float *avgl);
float mapX(float x);
float unmapX(float x);
float mapY(float y);
float unmapY(float y);
QImage wav;
float *data;
QMap<int, float *> mipmaps;
size_t size;
float xscale;
float yscale;
float xoffset;
float yoffset;
float threshold;
bool threshold_is_moving;
bool selection_is_moving_left;
bool selection_is_moving_right;
Selection *active_selection;
QColor colBg;
QColor colSec;
QColor colMax;
QColor colHalf;
QColor colWavMax;
QColor colWavAvg;
QColor colThreshold;
QColor colThresholdMoving;
QColor colSelBg;
QColor colSel;
QColor colActiveSelBg;
QColor colActiveSel;
Selections _selections;
};
#endif/*__DRUMGIZMO_CANVAS_H__*/
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