summaryrefslogtreecommitdiff
path: root/dgedit/canvas.cc
diff options
context:
space:
mode:
Diffstat (limited to 'dgedit/canvas.cc')
-rw-r--r--dgedit/canvas.cc288
1 files changed, 0 insertions, 288 deletions
diff --git a/dgedit/canvas.cc b/dgedit/canvas.cc
deleted file mode 100644
index b119a94..0000000
--- a/dgedit/canvas.cc
+++ /dev/null
@@ -1,288 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/***************************************************************************
- * canvas.cc
- *
- * 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.
- */
-#include "canvas.h"
-
-#include <sndfile.h>
-#include <QMouseEvent>
-#include <QPaintEvent>
-#include <QPainter>
-#include <QKeyEvent>
-
-#include <math.h>
-
-#define DEFYSCALE 200
-
-Canvas::Canvas(QWidget *parent)
- : QWidget(parent)
-{
- setAttribute(Qt::WA_StaticContents);
- setMouseTracking(true);
- setFocusPolicy(Qt::ClickFocus);
-
- mipmap = NULL;
-
- data = NULL;
- size = 0;
-
- xscale = 1.0;
- yscale = 1.0;
- xoffset = 0.0;
- yoffset = 0.5;
-
- colBg = QColor(180, 200, 180);
- colSec = QColor(160, 180, 160);
- colWavMax = QColor(100, 100, 100);
- colWavAvg = QColor(0, 0, 0);
- colMax = QColor(127, 127, 255);
- colHalf = QColor(180, 180, 255);
-
- setCursor(Qt::ArrowCursor);
-
- wav = QImage(width(), height(), QImage::Format_RGB32);
-}
-
-Canvas::~Canvas()
-{
- if(data) delete[] data;
- if(mipmap) delete mipmap;
-}
-
-void Canvas::load(QString file)
-{
- if(data) {
- delete[] data;
- data = NULL;
- size = 0;
- }
-
- if(mipmap) {
- delete mipmap;
- mipmap = NULL;
- }
-
- SF_INFO sf_info;
- SNDFILE *fh = sf_open(file.toStdString().c_str(), SFM_READ, &sf_info);
- if(!fh) {
- printf("Load error...\n");
- return;
- }
-
- size = sf_info.frames;
-
- printf("Size: %u\n", (unsigned int)sf_info.frames);
- data = new float[size];
-
- sf_read_float(fh, data, size);
-
- sf_close(fh);
-
- mipmap = new MipMap(data, size);
-
- updateWav();
- update();
-}
-
-
-#define SCALEX ((xscale * (float)size/(float)width()) + 0.1)
-#define OFFSETX (xoffset * (float)size)
-float Canvas::mapX(float x)
-{
- float val = (x - OFFSETX) / SCALEX;
- return val;
-}
-
-float Canvas::unmapX(float x)
-{
- float val = x * SCALEX + OFFSETX;
- return val;
-}
-
-#define SCALEY ((yscale * 999.0 + 1.0 ) * (float)DEFYSCALE)
-#define OFFSETY (((float)height() / 2.0) + ((yoffset * 2.0 - 1.0) * SCALEY))
-float Canvas::mapY(float y)
-{
- float val = OFFSETY + (y * SCALEY);
- return val;
-}
-
-float Canvas::unmapY(float y)
-{
- float val = (y - OFFSETY) / SCALEY;
- return val;
-}
-
-void Canvas::mouseMoveEvent(QMouseEvent *event)
-{
- for(int i = 0; i < tools.size(); i++) {
- if(tools[i]->mouseMoveEvent(event)) return;
- }
-
- setCursor(Qt::ArrowCursor);
-}
-
-void Canvas::mousePressEvent(QMouseEvent *event)
-{
- for(int i = 0; i < tools.size(); i++) {
- if(tools[i]->mousePressEvent(event)) return;
- }
-}
-
-void Canvas::mouseReleaseEvent(QMouseEvent *event)
-{
- for(int i = 0; i < tools.size(); i++) {
- if(tools[i]->mouseReleaseEvent(event)) return;
- }
-}
-
-void Canvas::resizeEvent(QResizeEvent *event)
-{
- for(int i = 0; i < tools.size(); i++) {
- tools[i]->resizeEvent(event);
- }
-
- wav = QImage(width(), height(), QImage::Format_RGB32);
- updateWav();
- update();
-}
-
-void Canvas::getWavValues(int last, int lx, float *vu, float *vl,
- float *avgu, float *avgl)
-{
- if(mipmap == NULL) return;
-
- MipMapValue val = mipmap->lookup(last, lx);
-
- *vu = val.max;
- *vl = val.min;
- *avgu = val.uavg;
- *avgl = val.lavg;
-}
-
-void Canvas::updateWav()
-{
- QPainter painter(&wav);
-
- painter.setPen(colBg);
- painter.setBrush(colBg);
- painter.drawRect(0, 0, wav.width(), wav.height());
-
- painter.setPen(colSec);
- int step = 44100;
- for(size_t i = 0; i < size; i += step) {
- painter.drawLine(mapX(i), mapY(1.0), mapX(i), mapY(-1.0));
- }
-
- painter.setPen(colMax);
- painter.drawLine(0, mapY(1.0), wav.width(), mapY(1.0));
- painter.drawLine(0, mapY(-1.0), wav.width(), mapY(-1.0));
-
- painter.setPen(colHalf);
- painter.drawLine(0, mapY(0.5), wav.width(), mapY(0.5));
- painter.drawLine(0, mapY(-0.5), wav.width(), mapY(-0.5));
-
- if(data) {
- int last = unmapX(0);
- for(int x = 0; x < wav.width(); x++) {
- int lx = unmapX(x);
- if(lx > (int)size || lx < 0) break;
- float vu = 0;
- float vl = 0;
- float avgu = 0;
- float avgl = 0;
-
- getWavValues(last, lx, &vu, &vl, &avgu, &avgl);
-
- int c = mapY(0.0);
-
- painter.setPen(colWavMax);
- painter.drawLine(x, c, x, mapY(vu));
- painter.drawLine(x, c, x, mapY(vl));
-
- painter.setPen(colWavAvg);
- painter.drawLine(x, c, x, mapY(avgu));
- painter.drawLine(x, c, x, mapY(avgl));
-
- last = lx;
- }
- }
-}
-
-void Canvas::paintEvent(QPaintEvent *event)
-{
- QPainter painter(this);
-
- painter.drawImage(event->rect(),wav,event->rect());
-
- for(int i = 0; i < tools.size(); i++) {
- tools[i]->paintEvent(event, painter);
- }
-}
-
-void Canvas::keyReleaseEvent(QKeyEvent *event)
-{
- for(int i = 0; i < tools.size(); i++) {
- tools[i]->keyReleaseEvent(event);
- }
-}
-
-void Canvas::setXScale(float scale)
-{
- scale = (pow(100.0,scale) / 100.0) - (pow(100.0, 0.0)/ 100.0);
- if(scale < 0.0) scale = 0.0;
- if(scale > 1.0) scale = 1.0;
- xscale = scale;
- updateWav();
- update();
-}
-
-void Canvas::setYScale(float scale)
-{
- scale = (pow(100.0,scale) / 100.0) - (pow(100.0, 0.0)/ 100.0);
- if(scale < 0.0) scale = 0.0;
- if(scale > 1.0) scale = 1.0;
- yscale = scale;
- updateWav();
- update();
-}
-
-void Canvas::setXOffset(float offset)
-{
- if(offset < 0.0) offset = 0.0;
- if(offset > 1.0) offset = 1.0;
- xoffset = offset;
- updateWav();
- update();
-}
-
-void Canvas::setYOffset(float offset)
-{
- if(offset < 0.0) offset = 0.0;
- if(offset > 1.0) offset = 1.0;
- yoffset = offset;
- updateWav();
- update();
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 07:28:58 +0000