// TODO implement these
cv::Mat eyeCornerMap(const cv::Mat ®ion, bool left, bool left2) {
cv::Mat cornerMap;
cv::Size sizeRegion = region.size();
cv::Range colRange(sizeRegion.width / 4, sizeRegion.width * 3 / 4);
cv::Range rowRange(sizeRegion.height / 4, sizeRegion.height * 3 / 4);
cv::Mat miRegion(region, rowRange, colRange);
cv::filter2D(miRegion, cornerMap, CV_32F,
(left && !left2) || (!left && !left2) ? leftCornerKernel : rightCornerKernel);
return cornerMap;
}
void QgsComposerTableV2::render( QPainter *p, const QRectF &renderExtent, const int frameIndex )
{
if ( !p )
{
return;
}
bool emptyTable = mTableContents.length() == 0;
if ( emptyTable && mEmptyTableMode == QgsComposerTableV2::HideTable )
{
//empty table set to hide table mode, so don't draw anything
return;
}
//calculate which rows to show in this frame
QPair< int, int > rowsToShow = rowRange( renderExtent, frameIndex );
if ( mComposition->plotStyle() == QgsComposition::Print ||
mComposition->plotStyle() == QgsComposition::Postscript )
{
//exporting composition, so force an attribute refresh
//we do this in case vector layer has changed via an external source (eg, another database user)
refreshAttributes();
}
p->save();
//antialiasing on
p->setRenderHint( QPainter::Antialiasing, true );
p->setPen( Qt::SolidLine );
//now draw the text
double currentX = ( mShowGrid ? mGridStrokeWidth : 0 );
double currentY;
QList<QgsComposerTableColumn*>::const_iterator columnIt = mColumns.constBegin();
int col = 0;
double cellHeaderHeight = QgsComposerUtils::fontAscentMM( mHeaderFont ) + 2 * mCellMargin;
double cellBodyHeight = QgsComposerUtils::fontAscentMM( mContentFont ) + 2 * mCellMargin;
QRectF cell;
//calculate whether a header is required
bool drawHeader = (( mHeaderMode == QgsComposerTableV2::FirstFrame && frameIndex < 1 )
|| ( mHeaderMode == QgsComposerTableV2::AllFrames ) );
//calculate whether drawing table contents is required
bool drawContents = !( emptyTable && mEmptyTableMode == QgsComposerTableV2::ShowMessage );
for ( ; columnIt != mColumns.constEnd(); ++columnIt )
{
currentY = ( mShowGrid ? mGridStrokeWidth : 0 );
currentX += mCellMargin;
Qt::TextFlag textFlag = ( Qt::TextFlag )0;
if (( *columnIt )->width() <= 0 )
{
//automatic column width, so we use the Qt::TextDontClip flag when drawing contents, as this works nicer for italicised text
//which may slightly exceed the calculated width
//if column size was manually set then we do apply text clipping, to avoid painting text outside of columns width
textFlag = Qt::TextDontClip;
}
if ( drawHeader )
{
//draw the header
cell = QRectF( currentX, currentY, mMaxColumnWidthMap[col], cellHeaderHeight );
//calculate alignment of header
Qt::AlignmentFlag headerAlign = Qt::AlignLeft;
switch ( mHeaderHAlignment )
{
case FollowColumn:
headerAlign = ( *columnIt )->hAlignment();
break;
case HeaderLeft:
headerAlign = Qt::AlignLeft;
break;
case HeaderCenter:
headerAlign = Qt::AlignHCenter;
break;
case HeaderRight:
headerAlign = Qt::AlignRight;
break;
}
QgsComposerUtils::drawText( p, cell, ( *columnIt )->heading(), mHeaderFont, mHeaderFontColor, headerAlign, Qt::AlignVCenter, textFlag );
currentY += cellHeaderHeight;
currentY += ( mShowGrid ? mGridStrokeWidth : 0 );
}
if ( drawContents )
{
//draw the attribute values
for ( int row = rowsToShow.first; row < rowsToShow.second; ++row )
{
cell = QRectF( currentX, currentY, mMaxColumnWidthMap[col], cellBodyHeight );
QVariant cellContents = mTableContents.at( row ).at( col );
QString str = cellContents.toString();
QgsComposerUtils::drawText( p, cell, str, mContentFont, mContentFontColor, ( *columnIt )->hAlignment(), Qt::AlignVCenter, textFlag );
currentY += cellBodyHeight;
currentY += ( mShowGrid ? mGridStrokeWidth : 0 );
}
}
currentX += mMaxColumnWidthMap[ col ];
currentX += mCellMargin;
currentX += ( mShowGrid ? mGridStrokeWidth : 0 );
col++;
}
//and the borders
if ( mShowGrid )
{
int numberRowsToDraw = rowsToShow.second - rowsToShow.first;
if ( mEmptyTableMode == QgsComposerTableV2::DrawEmptyCells )
{
numberRowsToDraw = rowsVisible( frameIndex );
}
bool mergeCells = false;
if ( emptyTable && mEmptyTableMode == QgsComposerTableV2::ShowMessage )
{
//draw a merged row for the empty table message
numberRowsToDraw++;
mergeCells = true;
}
QPen gridPen;
gridPen.setWidthF( mGridStrokeWidth );
gridPen.setColor( mGridColor );
gridPen.setJoinStyle( Qt::MiterJoin );
p->setPen( gridPen );
drawHorizontalGridLines( p, numberRowsToDraw, drawHeader );
drawVerticalGridLines( p, mMaxColumnWidthMap, numberRowsToDraw, drawHeader, mergeCells );
}
//special case - no records and table is set to ShowMessage mode
if ( emptyTable && mEmptyTableMode == QgsComposerTableV2::ShowMessage )
{
double messageX = ( mShowGrid ? mGridStrokeWidth : 0 ) + mCellMargin;
double messageY = ( mShowGrid ? mGridStrokeWidth : 0 ) +
( drawHeader ? cellHeaderHeight + ( mShowGrid ? mGridStrokeWidth : 0 ) : 0 );
cell = QRectF( messageX, messageY, mTableSize.width() - messageX, cellBodyHeight );
QgsComposerUtils::drawText( p, cell, mEmptyTableMessage, mContentFont, mContentFontColor, Qt::AlignHCenter, Qt::AlignVCenter, ( Qt::TextFlag )0 );
}
p->restore();
}
void QgsLayoutTable::render( QgsLayoutItemRenderContext &context, const QRectF &, const int frameIndex )
{
bool emptyTable = mTableContents.length() == 0;
if ( emptyTable && mEmptyTableMode == QgsLayoutTable::HideTable )
{
//empty table set to hide table mode, so don't draw anything
return;
}
if ( !mLayout->renderContext().isPreviewRender() )
{
//exporting composition, so force an attribute refresh
//we do this in case vector layer has changed via an external source (e.g., another database user)
refreshAttributes();
}
//calculate which rows to show in this frame
QPair< int, int > rowsToShow = rowRange( frameIndex );
double gridSizeX = mShowGrid && mVerticalGrid ? mGridStrokeWidth : 0;
double gridSizeY = mShowGrid && mHorizontalGrid ? mGridStrokeWidth : 0;
double cellHeaderHeight = QgsLayoutUtils::fontAscentMM( mHeaderFont ) + 2 * mCellMargin;
double cellBodyHeight = QgsLayoutUtils::fontAscentMM( mContentFont ) + 2 * mCellMargin;
QRectF cell;
//calculate whether a header is required
bool drawHeader = ( ( mHeaderMode == QgsLayoutTable::FirstFrame && frameIndex < 1 )
|| ( mHeaderMode == QgsLayoutTable::AllFrames ) );
//calculate whether drawing table contents is required
bool drawContents = !( emptyTable && mEmptyTableMode == QgsLayoutTable::ShowMessage );
int numberRowsToDraw = rowsToShow.second - rowsToShow.first;
int numberEmptyRows = 0;
if ( drawContents && mShowEmptyRows )
{
numberRowsToDraw = rowsVisible( frameIndex, rowsToShow.first, true );
numberEmptyRows = numberRowsToDraw - rowsToShow.second + rowsToShow.first;
}
bool mergeCells = false;
if ( emptyTable && mEmptyTableMode == QgsLayoutTable::ShowMessage )
{
//draw a merged row for the empty table message
numberRowsToDraw++;
rowsToShow.second++;
mergeCells = true;
}
QPainter *p = context.renderContext().painter();
p->save();
// painter is scaled to dots, so scale back to layout units
p->scale( context.renderContext().scaleFactor(), context.renderContext().scaleFactor() );
//draw the text
p->setPen( Qt::SolidLine );
double currentX = gridSizeX;
double currentY = gridSizeY;
if ( drawHeader )
{
//draw the headers
int col = 0;
for ( const QgsLayoutTableColumn *column : qgis::as_const( mColumns ) )
{
//draw background
p->save();
p->setPen( Qt::NoPen );
p->setBrush( backgroundColor( -1, col ) );
p->drawRect( QRectF( currentX, currentY, mMaxColumnWidthMap[col] + 2 * mCellMargin, cellHeaderHeight ) );
p->restore();
currentX += mCellMargin;
Qt::TextFlag textFlag = static_cast< Qt::TextFlag >( 0 );
if ( column->width() <= 0 )
{
//automatic column width, so we use the Qt::TextDontClip flag when drawing contents, as this works nicer for italicised text
//which may slightly exceed the calculated width
//if column size was manually set then we do apply text clipping, to avoid painting text outside of columns width
textFlag = Qt::TextDontClip;
}
cell = QRectF( currentX, currentY, mMaxColumnWidthMap[col], cellHeaderHeight );
//calculate alignment of header
Qt::AlignmentFlag headerAlign = Qt::AlignLeft;
switch ( mHeaderHAlignment )
{
case FollowColumn:
headerAlign = column->hAlignment();
break;
case HeaderLeft:
headerAlign = Qt::AlignLeft;
break;
case HeaderCenter:
headerAlign = Qt::AlignHCenter;
break;
case HeaderRight:
headerAlign = Qt::AlignRight;
break;
}
QgsLayoutUtils::drawText( p, cell, column->heading(), mHeaderFont, mHeaderFontColor, headerAlign, Qt::AlignVCenter, textFlag );
currentX += mMaxColumnWidthMap[ col ];
currentX += mCellMargin;
currentX += gridSizeX;
col++;
}
currentY += cellHeaderHeight;
currentY += gridSizeY;
}
//now draw the body cells
int rowsDrawn = 0;
if ( drawContents )
{
//draw the attribute values
for ( int row = rowsToShow.first; row < rowsToShow.second; ++row )
{
rowsDrawn++;
currentX = gridSizeX;
int col = 0;
//calculate row height
double rowHeight = mMaxRowHeightMap[row + 1] + 2 * mCellMargin;
for ( const QgsLayoutTableColumn *column : qgis::as_const( mColumns ) )
{
//draw background
p->save();
p->setPen( Qt::NoPen );
p->setBrush( backgroundColor( row, col ) );
p->drawRect( QRectF( currentX, currentY, mMaxColumnWidthMap[col] + 2 * mCellMargin, rowHeight ) );
p->restore();
// currentY = gridSize;
currentX += mCellMargin;
QVariant cellContents = mTableContents.at( row ).at( col );
QString str = cellContents.toString();
Qt::TextFlag textFlag = static_cast< Qt::TextFlag >( 0 );
if ( column->width() <= 0 && mWrapBehavior == TruncateText )
{
//automatic column width, so we use the Qt::TextDontClip flag when drawing contents, as this works nicer for italicised text
//which may slightly exceed the calculated width
//if column size was manually set then we do apply text clipping, to avoid painting text outside of columns width
textFlag = Qt::TextDontClip;
}
else if ( textRequiresWrapping( str, column->width(), mContentFont ) )
{
str = wrappedText( str, column->width(), mContentFont );
}
cell = QRectF( currentX, currentY, mMaxColumnWidthMap[col], rowHeight );
QgsLayoutUtils::drawText( p, cell, str, mContentFont, mContentFontColor, column->hAlignment(), column->vAlignment(), textFlag );
currentX += mMaxColumnWidthMap[ col ];
currentX += mCellMargin;
currentX += gridSizeX;
col++;
}
currentY += rowHeight;
currentY += gridSizeY;
}
}
if ( numberRowsToDraw > rowsDrawn )
{
p->save();
p->setPen( Qt::NoPen );
//draw background of empty rows
for ( int row = rowsDrawn; row < numberRowsToDraw; ++row )
{
currentX = gridSizeX;
int col = 0;
if ( mergeCells )
{
p->setBrush( backgroundColor( row + 10000, 0 ) );
p->drawRect( QRectF( gridSizeX, currentY, mTableSize.width() - 2 * gridSizeX, cellBodyHeight ) );
}
else
{
for ( QgsLayoutTableColumn *column : qgis::as_const( mColumns ) )
{
Q_UNUSED( column );
//draw background
//we use a bit of a hack here - since we don't want these extra blank rows to match the firstrow/lastrow rule, add 10000 to row number
p->setBrush( backgroundColor( row + 10000, col ) );
p->drawRect( QRectF( currentX, currentY, mMaxColumnWidthMap[col] + 2 * mCellMargin, cellBodyHeight ) );
// currentY = gridSize;
currentX += mMaxColumnWidthMap[ col ] + 2 * mCellMargin;
currentX += gridSizeX;
col++;
}
}
currentY += cellBodyHeight + gridSizeY;
}
p->restore();
}
//and the borders
if ( mShowGrid )
{
QPen gridPen;
gridPen.setWidthF( mGridStrokeWidth );
gridPen.setColor( mGridColor );
gridPen.setJoinStyle( Qt::MiterJoin );
p->setPen( gridPen );
if ( mHorizontalGrid )
{
drawHorizontalGridLines( p, rowsToShow.first, rowsToShow.second + numberEmptyRows, drawHeader );
}
if ( mVerticalGrid )
{
drawVerticalGridLines( p, mMaxColumnWidthMap, rowsToShow.first, rowsToShow.second + numberEmptyRows, drawHeader, mergeCells );
}
}
//special case - no records and table is set to ShowMessage mode
if ( emptyTable && mEmptyTableMode == QgsLayoutTable::ShowMessage )
{
double messageX = gridSizeX + mCellMargin;
double messageY = gridSizeY + ( drawHeader ? cellHeaderHeight + gridSizeY : 0 );
cell = QRectF( messageX, messageY, mTableSize.width() - messageX, cellBodyHeight );
QgsLayoutUtils::drawText( p, cell, mEmptyTableMessage, mContentFont, mContentFontColor, Qt::AlignHCenter, Qt::AlignVCenter, static_cast< Qt::TextFlag >( 0 ) );
}
p->restore();
}
void QgsComposerTableV2::render( QPainter *p, const QRectF &, const int frameIndex )
{
if ( !p )
{
return;
}
bool emptyTable = mTableContents.length() == 0;
if ( emptyTable && mEmptyTableMode == QgsComposerTableV2::HideTable )
{
//empty table set to hide table mode, so don't draw anything
return;
}
if ( mComposition->plotStyle() == QgsComposition::Print ||
mComposition->plotStyle() == QgsComposition::Postscript )
{
//exporting composition, so force an attribute refresh
//we do this in case vector layer has changed via an external source (eg, another database user)
refreshAttributes();
}
//calculate which rows to show in this frame
QPair< int, int > rowsToShow = rowRange( frameIndex );
double gridSize = mShowGrid ? mGridStrokeWidth : 0;
double cellHeaderHeight = QgsComposerUtils::fontAscentMM( mHeaderFont ) + 2 * mCellMargin;
double cellBodyHeight = QgsComposerUtils::fontAscentMM( mContentFont ) + 2 * mCellMargin;
QRectF cell;
//calculate whether a header is required
bool drawHeader = (( mHeaderMode == QgsComposerTableV2::FirstFrame && frameIndex < 1 )
|| ( mHeaderMode == QgsComposerTableV2::AllFrames ) );
//calculate whether drawing table contents is required
bool drawContents = !( emptyTable && mEmptyTableMode == QgsComposerTableV2::ShowMessage );
int numberRowsToDraw = rowsToShow.second - rowsToShow.first;
int numberEmptyRows = 0;
if ( drawContents && mShowEmptyRows )
{
numberRowsToDraw = rowsVisible( frameIndex, rowsToShow.first, true );
numberEmptyRows = numberRowsToDraw - rowsToShow.second + rowsToShow.first;
}
bool mergeCells = false;
if ( emptyTable && mEmptyTableMode == QgsComposerTableV2::ShowMessage )
{
//draw a merged row for the empty table message
numberRowsToDraw++;
rowsToShow.second++;
mergeCells = true;
}
p->save();
//antialiasing on
p->setRenderHint( QPainter::Antialiasing, true );
//draw the text
p->setPen( Qt::SolidLine );
double currentX = gridSize;
double currentY = gridSize;
if ( drawHeader )
{
//draw the headers
int col = 0;
Q_FOREACH ( const QgsComposerTableColumn* column, mColumns )
{
//draw background
p->save();
p->setPen( Qt::NoPen );
p->setBrush( backgroundColor( -1, col ) );
p->drawRect( QRectF( currentX, currentY, mMaxColumnWidthMap[col] + 2 * mCellMargin, cellHeaderHeight ) );
p->restore();
currentX += mCellMargin;
Qt::TextFlag textFlag = static_cast< Qt::TextFlag >( 0 );
if ( column->width() <= 0 )
{
//automatic column width, so we use the Qt::TextDontClip flag when drawing contents, as this works nicer for italicised text
//which may slightly exceed the calculated width
//if column size was manually set then we do apply text clipping, to avoid painting text outside of columns width
textFlag = Qt::TextDontClip;
}
cell = QRectF( currentX, currentY, mMaxColumnWidthMap[col], cellHeaderHeight );
//calculate alignment of header
Qt::AlignmentFlag headerAlign = Qt::AlignLeft;
switch ( mHeaderHAlignment )
{
case FollowColumn:
headerAlign = column->hAlignment();
break;
case HeaderLeft:
headerAlign = Qt::AlignLeft;
break;
case HeaderCenter:
headerAlign = Qt::AlignHCenter;
break;
case HeaderRight:
headerAlign = Qt::AlignRight;
break;
}
QgsComposerUtils::drawText( p, cell, column->heading(), mHeaderFont, mHeaderFontColor, headerAlign, Qt::AlignVCenter, textFlag );
currentX += mMaxColumnWidthMap[ col ];
currentX += mCellMargin;
currentX += gridSize;
col++;
}
currentY += cellHeaderHeight;
currentY += gridSize;
}
QPair< int, int > QgsComposerTableV2::rowRange( const QRectF &extent, const int frameIndex ) const
{
Q_UNUSED( extent );
return rowRange( frameIndex );
}
//Preview selected file
void QxMainWindow::preview()
{
QListWidgetItem *pCurrentItem = m_pFileListWidget->currentItem();
if (!pCurrentItem)
{
return;
}
QString strFileName = pCurrentItem->text();
QFile file(strFileName);
if (!file.open(QIODevice::ReadOnly))
{
return;
}
QByteArray rawData = file.readAll();
file.close();
cv::Size imageSize(640,448); //the image used to preview some of the characters
const unsigned uCharacterWidth = 64; //the width of each character in the preview image
const unsigned uCharacterHeight = 64; //the height of each character in the preview image
cv::Size smallerSize(54, 54);; //to guarantee a certain distance among characters, characters are presented in smaller size than they are.
const quint32 uInterval = 5; //this should be calculated by (characterSize.width-smallerSize.width)/2;
quint32 uCharacterPerRow = imageSize.width / uCharacterWidth;
quint32 uCharacterPerCol = imageSize.height / uCharacterHeight;
cv::Mat img = 255 * cv::Mat::ones(imageSize, CV_8UC1);
quint32 uDecodedByteNum = 0; //As the data is read as a stream, this variable tells how many bytes are processed already
for (quint32 i = 0; i != uCharacterPerRow; ++i)
{
for (quint32 j = 0; j != uCharacterPerCol; ++j)
{
quint32 uWidth = uchar(rawData.at(6 + uDecodedByteNum)) + quint32(uchar(rawData.at(7 + uDecodedByteNum))) * (1 << 8);
quint32 uHeight = uchar(rawData.at(8 + uDecodedByteNum)) + quint32(uchar(rawData.at(9 + uDecodedByteNum))) * (1 << 8);
quint32 uArcLen = uWidth > uHeight ? uWidth : uHeight;
uDecodedByteNum += 10;
// save data to a pre-defined white image(all pixel values are pre-defined to be 255)
cv::Mat characterImage = 255 * cv::Mat::ones(uArcLen, uArcLen, CV_8UC1);
quint32 uHalfPadRowNum = (uArcLen - uHeight) / 2;
quint32 uHalfPadColNum = (uArcLen - uWidth) / 2;
for (quint32 row = uHalfPadRowNum; row != uHeight + uHalfPadRowNum; ++row)
{
uchar *pRow = characterImage.ptr<uchar>(row);
for (quint32 col = uHalfPadColNum; col != uWidth + uHalfPadColNum; ++col)
{
pRow[col] = uchar(rawData.at(uDecodedByteNum++));
}
}
// image normalization and filling
cv::resize(characterImage, characterImage, smallerSize);
cv::Range rowRange(j*uCharacterWidth, (j + 1)*uCharacterWidth);
cv::Range colRange(i*uCharacterHeight, (i + 1)*uCharacterHeight);
cv::Mat roi = img(rowRange, colRange);
//cv::Mat::copyTo() calls cv::Mat::create(), which breaks the original image.
//Also, cv::Mat::clone() fails to copy the values properly somehow, thus a pixelwise copy is implemented here.
for (int row = 0; row != smallerSize.height; ++row)
{
uchar *pDst = roi.ptr<uchar>(row + uInterval);
uchar *pSrc = characterImage.ptr<uchar>(row);
for (int col = 0; col != smallerSize.width; ++col)
{
pDst[col + uInterval] = pSrc[col];
}
}
}
}
QImage previewImage(img.data, img.cols, img.rows, img.step, QImage::Format_Grayscale8);
QPixmap pixmap = QPixmap::fromImage(previewImage);
m_pPreviewLabel->setPixmap(pixmap);
m_pPreviewLabel->show();
}
