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Code clean up

adaptive-webui-19844
Christophe Dumez 13 years ago
parent
ea0f384dbf
commit
28ba0c25a7
4 changed files with 389 additions and 388 deletions
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  1. 340
      src/properties/downloadedpiecesbar.cpp
  2. 60
      src/properties/downloadedpiecesbar.h
  3. 323
      src/properties/pieceavailabilitybar.cpp
  4. 54
      src/properties/pieceavailabilitybar.h

340
src/properties/downloadedpiecesbar.cpp
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@ -34,215 +34,215 @@ @@ -34,215 +34,215 @@
DownloadedPiecesBar::DownloadedPiecesBar(QWidget *parent): QWidget(parent)
{
setFixedHeight(BAR_HEIGHT);
setFixedHeight(BAR_HEIGHT);
bg_color = 0xffffff;
border_color = palette().color(QPalette::Dark).rgb();
piece_color = 0x0000ff;
piece_color_dl = 0x00d000;
bg_color = 0xffffff;
border_color = palette().color(QPalette::Dark).rgb();
piece_color = 0x0000ff;
piece_color_dl = 0x00d000;
updatePieceColors();
updatePieceColors();
}
std::vector<float> DownloadedPiecesBar::bitfieldToFloatVector(const libtorrent::bitfield &vecin, int reqSize)
{
std::vector<float> result(reqSize, 0.0);
if (vecin.size() == 0)
return result;
const float ratio = vecin.size() / (float)reqSize;
// simple linear transformation algorithm
// for example:
// image.x(0) = pieces.x(0.0 >= x < 1.7)
// image.x(1) = pieces.x(1.7 >= x < 3.4)
for (int x = 0; x < reqSize; ++x) {
// don't use previously calculated value "ratio" here!!!
// float cannot save irrational number like 7/9, if this number will be rounded up by std::ceil
// give you x2 == pieces.size(), and index out of range: pieces[x2]
// this code is safe, so keep that in mind when you try optimize more.
// tested with size = 3000000ul
// R - real
const float fromR = (x * vecin.size()) / (float)reqSize;
const float toR = ((x + 1) * vecin.size()) / (float)reqSize;
// C - integer
int fromC = fromR;// std::floor not needed
int toC = std::ceil(toR);
// position in pieces table
// libtorrent::bitfield::m_size is unsigned int(31 bits), so qlonglong is not needed
// tested with size = 3000000ul
int x2 = fromC;
// little speed up for really big pieces table, 10K+ size
const int toCMinusOne = toC - 1;
// value in returned vector
float value = 0;
// case when calculated range is (15.2 >= x < 15.7)
if (x2 == toCMinusOne) {
if (vecin[x2]) {
value += toR - fromR;
}
++x2;
}
// case when (15.2 >= x < 17.8)
else {
// subcase (15.2 >= x < 16)
if (x2 != fromR) {
if (vecin[x2]) {
value += 1.0 - (fromR - fromC);
}
++x2;
}
// subcase (16 >= x < 17)
for (; x2 < toCMinusOne; ++x2) {
if (vecin[x2]) {
value += 1.0;
}
}
// subcase (17 >= x < 17.8)
if (x2 == toCMinusOne) {
if (vecin[x2]) {
value += 1.0 - (toC - toR);
}
++x2;
}
}
// normalization <0, 1>
value /= ratio;
// float precision sometimes gives > 1, bacause in not possible to store irrational numbers
value = qMin(value, (float)1.0);
result[x] = value;
}
return result;
std::vector<float> result(reqSize, 0.0);
if (vecin.empty())
return result;
const float ratio = vecin.size() / (float)reqSize;
// simple linear transformation algorithm
// for example:
// image.x(0) = pieces.x(0.0 >= x < 1.7)
// image.x(1) = pieces.x(1.7 >= x < 3.4)
for (int x = 0; x < reqSize; ++x) {
// don't use previously calculated value "ratio" here!!!
// float cannot save irrational number like 7/9, if this number will be rounded up by std::ceil
// give you x2 == pieces.size(), and index out of range: pieces[x2]
// this code is safe, so keep that in mind when you try optimize more.
// tested with size = 3000000ul
// R - real
const float fromR = (x * vecin.size()) / (float)reqSize;
const float toR = ((x + 1) * vecin.size()) / (float)reqSize;
// C - integer
int fromC = fromR;// std::floor not needed
int toC = std::ceil(toR);
// position in pieces table
// libtorrent::bitfield::m_size is unsigned int(31 bits), so qlonglong is not needed
// tested with size = 3000000ul
int x2 = fromC;
// little speed up for really big pieces table, 10K+ size
const int toCMinusOne = toC - 1;
// value in returned vector
float value = 0;
// case when calculated range is (15.2 >= x < 15.7)
if (x2 == toCMinusOne) {
if (vecin[x2]) {
value += toR - fromR;
}
++x2;
}
// case when (15.2 >= x < 17.8)
else {
// subcase (15.2 >= x < 16)
if (x2 != fromR) {
if (vecin[x2]) {
value += 1.0 - (fromR - fromC);
}
++x2;
}
// subcase (16 >= x < 17)
for (; x2 < toCMinusOne; ++x2) {
if (vecin[x2]) {
value += 1.0;
}
}
// subcase (17 >= x < 17.8)
if (x2 == toCMinusOne) {
if (vecin[x2]) {
value += 1.0 - (toC - toR);
}
++x2;
}
}
// normalization <0, 1>
value /= ratio;
// float precision sometimes gives > 1, because in not possible to store irrational numbers
value = qMin(value, (float)1.0);
result[x] = value;
}
return result;
}
int DownloadedPiecesBar::mixTwoColors(int &rgb1, int &rgb2, float ratio)
{
int r1 = qRed(rgb1);
int g1 = qGreen(rgb1);
int b1 = qBlue(rgb1);
int r1 = qRed(rgb1);
int g1 = qGreen(rgb1);
int b1 = qBlue(rgb1);
int r2 = qRed(rgb2);
int g2 = qGreen(rgb2);
int b2 = qBlue(rgb2);
int r2 = qRed(rgb2);
int g2 = qGreen(rgb2);
int b2 = qBlue(rgb2);
float ratio_n = 1.0 - ratio;
int r = (r1 * ratio_n) + (r2 * ratio);
int g = (g1 * ratio_n) + (g2 * ratio);
int b = (b1 * ratio_n) + (b2 * ratio);
float ratio_n = 1.0 - ratio;
int r = (r1 * ratio_n) + (r2 * ratio);
int g = (g1 * ratio_n) + (g2 * ratio);
int b = (b1 * ratio_n) + (b2 * ratio);
return qRgb(r, g, b);
return qRgb(r, g, b);
}
void DownloadedPiecesBar::updateImage()
{
// qDebug() << "updateImage";
QImage image2(width() - 2, 1, QImage::Format_RGB888);
if (pieces.empty()) {
image2.fill(0xffffff);
image = image2;
update();
return;
}
std::vector<float> scaled_pieces = bitfieldToFloatVector(pieces, image2.width());
std::vector<float> scaled_pieces_dl = bitfieldToFloatVector(pieces_dl, image2.width());
// filling image
for (unsigned int x = 0; x < scaled_pieces.size(); ++x)
{
float pieces2_val = scaled_pieces.at(x);
float pieces2_val_dl = scaled_pieces_dl.at(x);
if (pieces2_val_dl != 0)
{
float fill_ratio = pieces2_val + pieces2_val_dl;
float ratio = pieces2_val_dl / fill_ratio;
int mixedColor = mixTwoColors(piece_color, piece_color_dl, ratio);
mixedColor = mixTwoColors(bg_color, mixedColor, fill_ratio);
image2.setPixel(x, 0, mixedColor);
}
else
{
image2.setPixel(x, 0, piece_colors[pieces2_val * 255]);
}
}
image = image2;
// qDebug() << "updateImage";
QImage image2(width() - 2, 1, QImage::Format_RGB888);
if (pieces.empty()) {
image2.fill(0xffffff);
image = image2;
update();
return;
}
std::vector<float> scaled_pieces = bitfieldToFloatVector(pieces, image2.width());
std::vector<float> scaled_pieces_dl = bitfieldToFloatVector(pieces_dl, image2.width());
// filling image
for (unsigned int x = 0; x < scaled_pieces.size(); ++x)
{
float pieces2_val = scaled_pieces.at(x);
float pieces2_val_dl = scaled_pieces_dl.at(x);
if (pieces2_val_dl != 0)
{
float fill_ratio = pieces2_val + pieces2_val_dl;
float ratio = pieces2_val_dl / fill_ratio;
int mixedColor = mixTwoColors(piece_color, piece_color_dl, ratio);
mixedColor = mixTwoColors(bg_color, mixedColor, fill_ratio);
image2.setPixel(x, 0, mixedColor);
}
else
{
image2.setPixel(x, 0, piece_colors[pieces2_val * 255]);
}
}
image = image2;
}
void DownloadedPiecesBar::setProgress(const libtorrent::bitfield &bf, const libtorrent::bitfield &bf_dl)
{
pieces = libtorrent::bitfield(bf);
pieces_dl = libtorrent::bitfield(bf_dl);
pieces = libtorrent::bitfield(bf);
pieces_dl = libtorrent::bitfield(bf_dl);
updateImage();
update();
updateImage();
update();
}
void DownloadedPiecesBar::updatePieceColors()
{
piece_colors = std::vector<int>(256);
for (int i = 0; i < 256; ++i) {
float ratio = (i / 255.0);
piece_colors[i] = mixTwoColors(bg_color, piece_color, ratio);
}
piece_colors = std::vector<int>(256);
for (int i = 0; i < 256; ++i) {
float ratio = (i / 255.0);
piece_colors[i] = mixTwoColors(bg_color, piece_color, ratio);
}
}
void DownloadedPiecesBar::clear()
{
image = QImage();
update();
image = QImage();
update();
}
void DownloadedPiecesBar::paintEvent(QPaintEvent *)
{
QPainter painter(this);
QRect imageRect(1, 1, width() - 2, height() - 2);
if (image.isNull())
{
painter.setBrush(Qt::white);
painter.drawRect(imageRect);
}
else
{
if (image.width() != imageRect.width())
updateImage();
painter.drawImage(imageRect, image);
}
QPainterPath border;
border.addRect(0, 0, width() - 1, height() - 1);
painter.setPen(border_color);
painter.drawPath(border);
QPainter painter(this);
QRect imageRect(1, 1, width() - 2, height() - 2);
if (image.isNull())
{
painter.setBrush(Qt::white);
painter.drawRect(imageRect);
}
else
{
if (image.width() != imageRect.width())
updateImage();
painter.drawImage(imageRect, image);
}
QPainterPath border;
border.addRect(0, 0, width() - 1, height() - 1);
painter.setPen(border_color);
painter.drawPath(border);
}
void DownloadedPiecesBar::setColors(int background, int border, int complete, int incomplete)
{
bg_color = background;
border_color = border;
piece_color = complete;
piece_color_dl = incomplete;
updatePieceColors();
updateImage();
update();
bg_color = background;
border_color = border;
piece_color = complete;
piece_color_dl = incomplete;
updatePieceColors();
updateImage();
update();
}

60
src/properties/downloadedpiecesbar.h
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@ -40,48 +40,48 @@ @@ -40,48 +40,48 @@
#define BAR_HEIGHT 18
class DownloadedPiecesBar: public QWidget {
Q_OBJECT
Q_DISABLE_COPY(DownloadedPiecesBar)
Q_OBJECT
Q_DISABLE_COPY(DownloadedPiecesBar)
private:
QImage image;
QImage image;
// I used values, bacause it should be possible to change colors in runtime
// I used values, bacause it should be possible to change colors in runtime
// background color
int bg_color;
// border color
int border_color;
// complete piece color
int piece_color;
// incomplete piece color
int piece_color_dl;
// buffered 256 levels gradient from bg_color to piece_color
std::vector<int> piece_colors;
// background color
int bg_color;
// border color
int border_color;
// complete piece color
int piece_color;
// incomplete piece color
int piece_color_dl;
// buffered 256 levels gradient from bg_color to piece_color
std::vector<int> piece_colors;
// last used bitfields, uses to better resize redraw
// TODO: make a diff pieces to new pieces and update only changed pixels, speedup when update > 20x faster
libtorrent::bitfield pieces;
libtorrent::bitfield pieces_dl;
// last used bitfields, uses to better resize redraw
// TODO: make a diff pieces to new pieces and update only changed pixels, speedup when update > 20x faster
libtorrent::bitfield pieces;
libtorrent::bitfield pieces_dl;
// scale bitfield vector to float vector
std::vector<float> bitfieldToFloatVector(const libtorrent::bitfield &vecin, int reqSize);
// mix two colors by light model, ratio <0, 1>
int mixTwoColors(int &rgb1, int &rgb2, float ratio);
// draw new image and replace actual image
void updateImage();
// scale bitfield vector to float vector
std::vector<float> bitfieldToFloatVector(const libtorrent::bitfield &vecin, int reqSize);
// mix two colors by light model, ratio <0, 1>
int mixTwoColors(int &rgb1, int &rgb2, float ratio);
// draw new image and replace actual image
void updateImage();
public:
DownloadedPiecesBar(QWidget *parent);
DownloadedPiecesBar(QWidget *parent);
void setProgress(const libtorrent::bitfield &bf, const libtorrent::bitfield &bf_dl);
void updatePieceColors();
void clear();
void setProgress(const libtorrent::bitfield &bf, const libtorrent::bitfield &bf_dl);
void updatePieceColors();
void clear();
void setColors(int background, int border, int complete, int incomplete);
void setColors(int background, int border, int complete, int incomplete);
protected:
void paintEvent(QPaintEvent *);
void paintEvent(QPaintEvent *);
};
#endif // DOWNLOADEDPIECESBAR_H

323
src/properties/pieceavailabilitybar.cpp
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@ -33,205 +33,206 @@ @@ -33,205 +33,206 @@
//#include <QDebug>
PieceAvailabilityBar::PieceAvailabilityBar(QWidget *parent) :
QWidget(parent)
QWidget(parent)
{
setFixedHeight(BAR_HEIGHT);
setFixedHeight(BAR_HEIGHT);
bg_color = 0xffffff;
border_color = palette().color(QPalette::Dark).rgb();
piece_color = 0x0000ff;
bg_color = 0xffffff;
border_color = palette().color(QPalette::Dark).rgb();
piece_color = 0x0000ff;
updatePieceColors();
updatePieceColors();
}
std::vector<float> PieceAvailabilityBar::intToFloatVector(const std::vector<int> &vecin, int reqSize)
{
std::vector<float> result(reqSize, 0.0);
if (vecin.size() == 0)
return result;
const float ratio = vecin.size() / (float)reqSize;
const int maxElement = *std::max_element(vecin.begin(), vecin.end());
// qMax bacause in normalization we don't want divide by 0
// if maxElement == 0 check will be disabled please enable this line:
// const int maxElement = qMax(*std::max_element(avail.begin(), avail.end()), 1);
if (maxElement == 0)
return result;
// simple linear transformation algorithm
// for example:
// image.x(0) = pieces.x(0.0 >= x < 1.7)
// image.x(1) = pieces.x(1.7 >= x < 3.4)
for (int x = 0; x < reqSize; ++x) {
// don't use previously calculated value "ratio" here!!!
// float cannot save irrational number like 7/9, if this number will be rounded up by std::ceil
// give you x2 == pieces.size(), and index out of range: pieces[x2]
// this code is safe, so keep that in mind when you try optimize more.
// tested with size = 3000000ul
// R - real
const float fromR = (x * vecin.size()) / (float)reqSize;
const float toR = ((x + 1) * vecin.size()) / (float)reqSize;
// C - integer
int fromC = fromR;// std::floor not needed
int toC = std::ceil(toR);
// position in pieces table
// libtorrent::bitfield::m_size is unsigned int(31 bits), so qlonglong is not needed
// tested with size = 3000000ul
int x2 = fromC;
// little speed up for really big pieces table, 10K+ size
const int toCMinusOne = toC - 1;
// value in returned vector
float value = 0;
// case when calculated range is (15.2 >= x < 15.7)
if (x2 == toCMinusOne) {
if (vecin[x2]) {
value += (toR - fromR) * vecin[x2];
}
++x2;
}
// case when (15.2 >= x < 17.8)
else {
// subcase (15.2 >= x < 16)
if (x2 != fromR) {
if (vecin[x2]) {
value += (1.0 - (fromR - fromC)) * vecin[x2];
}
++x2;
}
// subcase (16 >= x < 17)
for (; x2 < toCMinusOne; ++x2) {
if (vecin[x2]) {
value += vecin[x2];
}
}
// subcase (17 >= x < 17.8)
if (x2 == toCMinusOne) {
if (vecin[x2]) {
value += (1.0 - (toC - toR)) * vecin[x2];
}
++x2;
}
}
// normalization <0, 1>
value /= ratio * maxElement;
// float precision sometimes gives > 1, bacause in not possible to store irrational numbers
value = qMin(value, (float)1.0);
result[x] = value;
}
return result;
std::vector<float> result(reqSize, 0.0);
if (vecin.empty())
return result;
const float ratio = vecin.size() / (float)reqSize;
const int maxElement = *std::max_element(vecin.begin(), vecin.end());
// qMax bacause in normalization we don't want divide by 0
// if maxElement == 0 check will be disabled please enable this line:
// const int maxElement = qMax(*std::max_element(avail.begin(), avail.end()), 1);
if (maxElement == 0)
return result;
// simple linear transformation algorithm
// for example:
// image.x(0) = pieces.x(0.0 >= x < 1.7)
// image.x(1) = pieces.x(1.7 >= x < 3.4)
for (int x = 0; x < reqSize; ++x) {
// don't use previously calculated value "ratio" here!!!
// float cannot save irrational number like 7/9, if this number will be rounded up by std::ceil
// give you x2 == pieces.size(), and index out of range: pieces[x2]
// this code is safe, so keep that in mind when you try optimize more.
// tested with size = 3000000ul
// R - real
const float fromR = (x * vecin.size()) / (float)reqSize;
const float toR = ((x + 1) * vecin.size()) / (float)reqSize;
// C - integer
int fromC = fromR;// std::floor not needed
int toC = std::ceil(toR);
// position in pieces table
// libtorrent::bitfield::m_size is unsigned int(31 bits), so qlonglong is not needed
// tested with size = 3000000ul
int x2 = fromC;
// little speed up for really big pieces table, 10K+ size
const int toCMinusOne = toC - 1;
// value in returned vector
float value = 0;
// case when calculated range is (15.2 >= x < 15.7)
if (x2 == toCMinusOne) {
if (vecin[x2]) {
value += (toR - fromR) * vecin[x2];
}
++x2;
}
// case when (15.2 >= x < 17.8)
else {
// subcase (15.2 >= x < 16)
if (x2 != fromR) {
if (vecin[x2]) {
value += (1.0 - (fromR - fromC)) * vecin[x2];
}
++x2;
}
// subcase (16 >= x < 17)
for (; x2 < toCMinusOne; ++x2) {
if (vecin[x2]) {
value += vecin[x2];
}
}
// subcase (17 >= x < 17.8)
if (x2 == toCMinusOne) {
if (vecin[x2]) {
value += (1.0 - (toC - toR)) * vecin[x2];
}
++x2;
}
}
// normalization <0, 1>
value /= ratio * maxElement;
// float precision sometimes gives > 1, because in not possible to store irrational numbers
value = qMin(value, (float)1.0);
result[x] = value;
}
return result;
}
int PieceAvailabilityBar::mixTwoColors(int &rgb1, int &rgb2, float ratio)
{
int r1 = qRed(rgb1);
int g1 = qGreen(rgb1);
int b1 = qBlue(rgb1);
int r1 = qRed(rgb1);
int g1 = qGreen(rgb1);
int b1 = qBlue(rgb1);
int r2 = qRed(rgb2);
int g2 = qGreen(rgb2);
int b2 = qBlue(rgb2);
int r2 = qRed(rgb2);
int g2 = qGreen(rgb2);
int b2 = qBlue(rgb2);
float ratio_n = 1.0 - ratio;
int r = (r1 * ratio_n) + (r2 * ratio);
int g = (g1 * ratio_n) + (g2 * ratio);
int b = (b1 * ratio_n) + (b2 * ratio);
float ratio_n = 1.0 - ratio;
int r = (r1 * ratio_n) + (r2 * ratio);
int g = (g1 * ratio_n) + (g2 * ratio);
int b = (b1 * ratio_n) + (b2 * ratio);
return qRgb(r, g, b);
return qRgb(r, g, b);
}
void PieceAvailabilityBar::updateImage()
{
// qDebug() << "updateImageAv";
QImage image2(width() - 2, 1, QImage::Format_RGB888);
if (pieces.empty()) {
image2.fill(0xffffff);
image = image2;
update();
return;
}
std::vector<float> scaled_pieces = intToFloatVector(pieces, image2.width());
// filling image
for (unsigned int x = 0; x < scaled_pieces.size(); ++x)
{
float pieces2_val = scaled_pieces.at(x);
image2.setPixel(x, 0, piece_colors[pieces2_val * 255]);
}
image = image2;
// qDebug() << "updateImageAv";
QImage image2(width() - 2, 1, QImage::Format_RGB888);
if (pieces.empty()) {
image2.fill(0xffffff);
image = image2;
update();
return;
}
std::vector<float> scaled_pieces = intToFloatVector(pieces, image2.width());
// filling image
for (unsigned int x = 0; x < scaled_pieces.size(); ++x)
{
float pieces2_val = scaled_pieces.at(x);
image2.setPixel(x, 0, piece_colors[pieces2_val * 255]);
}
image = image2;
}
void PieceAvailabilityBar::setAvailability(const std::vector<int>& avail)
{
pieces = std::vector<int>(avail);
pieces = std::vector<int>(avail);
updateImage();
update();
updateImage();
update();
}
void PieceAvailabilityBar::updatePieceColors()
{
piece_colors = std::vector<int>(256);
for (int i = 0; i < 256; ++i) {
float ratio = (i / 255.0);
piece_colors[i] = mixTwoColors(bg_color, piece_color, ratio);
}
piece_colors = std::vector<int>(256);
for (int i = 0; i < 256; ++i) {
float ratio = (i / 255.0);
piece_colors[i] = mixTwoColors(bg_color, piece_color, ratio);
}
}
void PieceAvailabilityBar::clear()
{
image = QImage();
update();
image = QImage();
update();
}
void PieceAvailabilityBar::paintEvent(QPaintEvent *)
{
QPainter painter(this);
QRect imageRect(1, 1, width() - 2, height() - 2);
if (image.isNull())
{
painter.setBrush(Qt::white);
painter.drawRect(imageRect);
}
else
{
if (image.width() != imageRect.width())
updateImage();
painter.drawImage(imageRect, image);
}
QPainterPath border;
border.addRect(0, 0, width() - 1, height() - 1);
painter.setPen(border_color);
painter.drawPath(border);
QPainter painter(this);
QRect imageRect(1, 1, width() - 2, height() - 2);
if (image.isNull())
{
painter.setBrush(Qt::white);
painter.drawRect(imageRect);
}
else
{
if (image.width() != imageRect.width())
updateImage();
painter.drawImage(imageRect, image);
}
QPainterPath border;
border.addRect(0, 0, width() - 1, height() - 1);
painter.setPen(border_color);
painter.drawPath(border);
}
void PieceAvailabilityBar::setColors(int background, int border, int available)
{
bg_color = background;
border_color = border;
piece_color = available;
bg_color = background;
border_color = border;
piece_color = available;
updatePieceColors();
updateImage();
update();
updatePieceColors();
updateImage();
update();
}

54
src/properties/pieceavailabilitybar.h
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@ -40,46 +40,46 @@ @@ -40,46 +40,46 @@
#define BAR_HEIGHT 18
class PieceAvailabilityBar: public QWidget {
Q_OBJECT
Q_DISABLE_COPY(PieceAvailabilityBar)
Q_OBJECT
Q_DISABLE_COPY(PieceAvailabilityBar)
private:
QImage image;
QImage image;
// I used values, bacause it should be possible to change colors in runtime
// I used values, bacause it should be possible to change colors in runtime
// background color
int bg_color;
// border color
int border_color;
// complete piece color
int piece_color;
// buffered 256 levels gradient from bg_color to piece_color
std::vector<int> piece_colors;
// background color
int bg_color;
// border color
int border_color;
// complete piece color
int piece_color;
// buffered 256 levels gradient from bg_color to piece_color
std::vector<int> piece_colors;
// last used int vector, uses to better resize redraw
// TODO: make a diff pieces to new pieces and update only changed pixels, speedup when update > 20x faster
std::vector<int> pieces;
// last used int vector, uses to better resize redraw
// TODO: make a diff pieces to new pieces and update only changed pixels, speedup when update > 20x faster
std::vector<int> pieces;
// scale int vector to float vector
std::vector<float> intToFloatVector(const std::vector<int> &vecin, int reqSize);
// scale int vector to float vector
std::vector<float> intToFloatVector(const std::vector<int> &vecin, int reqSize);
// mix two colors by light model, ratio <0, 1>
int mixTwoColors(int &rgb1, int &rgb2, float ratio);
// draw new image and replace actual image
void updateImage();
// mix two colors by light model, ratio <0, 1>
int mixTwoColors(int &rgb1, int &rgb2, float ratio);
// draw new image and replace actual image
void updateImage();
public:
PieceAvailabilityBar(QWidget *parent);
PieceAvailabilityBar(QWidget *parent);
void setAvailability(const std::vector<int>& avail);
void updatePieceColors();
void clear();
void setAvailability(const std::vector<int>& avail);
void updatePieceColors();
void clear();
void setColors(int background, int border, int available);
void setColors(int background, int border, int available);
protected:
void paintEvent(QPaintEvent *);
void paintEvent(QPaintEvent *);
};

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