summaryrefslogtreecommitdiff
path: root/src/canvas.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/canvas.cc')
-rw-r--r--src/canvas.cc326
1 files changed, 172 insertions, 154 deletions
diff --git a/src/canvas.cc b/src/canvas.cc
index 7007b0b..a00a39c 100644
--- a/src/canvas.cc
+++ b/src/canvas.cc
@@ -37,73 +37,82 @@
#define DEFYSCALE 200
Canvas::Canvas(QWidget *parent)
- : 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);
+ 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;
+ 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;
+ 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;
- }
+ if(!fh)
+ {
+ printf("Load error...\n");
+ return;
+ }
- size = sf_info.frames;
+ size = sf_info.frames;
- printf("Size: %u\n", (unsigned int)sf_info.frames);
- data = new float[size];
+ printf("Size: %u\n", (unsigned int)sf_info.frames);
+ data = new float[size];
- sf_read_float(fh, data, size);
+ sf_read_float(fh, data, size);
sf_close(fh);
- mipmap = new MipMap(data, size);
+ mipmap = new MipMap(data, size);
- updateWav();
- update();
+ updateWav();
+ update();
}
@@ -111,175 +120,184 @@ void Canvas::load(QString file)
#define OFFSETX (xoffset * (float)size)
float Canvas::mapX(float x)
{
- float val = (x - OFFSETX) / SCALEX;
- return val;
+ float val = (x - OFFSETX) / SCALEX;
+ return val;
}
float Canvas::unmapX(float x)
{
- float val = x * SCALEX + OFFSETX;
- return val;
+ float val = x * SCALEX + OFFSETX;
+ return val;
}
#define SCALEY (yscale * height())
#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 val = OFFSETY + (y * SCALEY);
+ return val;
}
float Canvas::unmapY(float y)
{
- float val = (y - OFFSETY) / SCALEY;
- return val;
+ 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;
- }
+ for(int i = 0; i < tools.size(); i++)
+ {
+ if(tools[i]->mouseMoveEvent(event)) return;
+ }
- setCursor(Qt::ArrowCursor);
+ setCursor(Qt::ArrowCursor);
}
void Canvas::mousePressEvent(QMouseEvent *event)
{
- for(int i = 0; i < tools.size(); i++) {
- if(tools[i]->mousePressEvent(event)) return;
- }
+ 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;
- }
+ 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();
+ 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;
+ if(mipmap == NULL) return;
- MipMapValue val = mipmap->lookup(last, lx);
+ MipMapValue val = mipmap->lookup(last, lx);
- *vu = val.max;
- *vl = val.min;
- *avgu = val.uavg;
- *avgl = val.lavg;
+ *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;
- }
- }
+ 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);
+ QPainter painter(this);
- painter.drawImage(event->rect(),wav,event->rect());
+ painter.drawImage(event->rect(),wav,event->rect());
- for(int i = 0; i < tools.size(); i++) {
- tools[i]->paintEvent(event, painter);
- }
-}
+ 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);
- }
+ 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();
+ 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)
{
- yscale = scale;
- updateWav();
- update();
+ 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();
+ 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();
+ 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 2024-11-04 01:47:19 +0000