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QCustomPlot: version 1.3.1
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@schdub
schdub committed May 22, 2015
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91 changes: 67 additions & 24 deletions libs/qcustomplot-source/changelog.txt
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#### Version 1.2.1 released on 07.04.14 ####
#### Version 1.3.1 released on 25.04.15 ####

Bugfixes:
- Fixed regression which garbled date-time tick labels on axes, if setTickLabelType is ltDateTime and setNumberFormat contains the "b" option
- Fixed bug that prevented automatic axis rescaling when some graphs/curves had only NaN data points
- Improved QCPItemBracket selection boundaries, especially bsCurly and bsCalligraphic
- Fixed bug of axis rect and colorscale background shifted downward by one logical pixel (visible in scaled png and pdf export)
- Replot upon mouse release is now only performed if a selection change has actually happened (improves responsivity on particularly complex plots)
- Fixed bug that allowed scatter-only graphs to be selected by clicking the non-existent line between scatters
- Fixed crash when trying to select a scatter-only QCPGraph whose only points in the visible key range are at identical key coordinates and vertically off-screen, with adaptive sampling enabled
- Fixed pdf export of QCPColorMap with enabled interpolation (didn't appear interpolated in pdf)
- Reduced QCPColorMap jitter of internal cell boundaries for small sized maps when viewed with high zoom, by applying oversampling factors dependant on map size
- Fixed bug of QCPColorMap::fill() not causing the buffered internal image map to be updated, and thus the change didn't become visible immediately
- Axis labels with size set in pixels (setPixelSize) instead of points now correctly calculate the exponent's font size if beautifully typeset powers are enabled
- Fixed QCPColorMap appearing at the wrong position for logarithmic axes and color map spanning larger ranges

Other:
- Pdf export used to embed entire QCPColorMaps, potentially leading to large files. Now only the visible portion of the map is embedded in the pdf
- Many documentation fixes and extensions, style modernization
- Reduced documentation file size (and thus full package size) by automatically reducing image palettes during package build
- Fixed MSVC warning message (at warning level 4) due to temporary QLists in some foreach statements

#### Version 1.2.0 released on 14.03.14 ####
#### Version 1.3.0 released on 27.12.14 ####

Added features:
- New plottable class QCPFinancial allows display of candlestick/ohlc data
- New class QCPBarsGroup allows horizontal grouping of multiple QCPBars plottables
- Added QCPBars feature allowing non-zero base values (see property QCPBars::setBaseValue)
- Added QCPBars width type, for more flexible bar widths (see property QCPBars::setWidthType)
- New QCPCurve optimization algorithm, fixes bug which caused line flicker at deep zoom into curve segment
- Item positions can now have different position types and anchors for their x and y coordinates (QCPItemPosition::setTypeX/Y, setParentAnchorX/Y)
- QCPGraph and QCPCurve can now display gaps in their lines, when inserting quiet NaNs as values (std::numeric_limits<double>::quiet_NaN())
- QCPAxis now supports placing the tick labels inside the axis rect, for particularly space saving plots (QCPAxis::setTickLabelSide)
Added features after beta:
- Made code compatible with QT_NO_CAST_FROM_ASCII, QT_NO_CAST_TO_ASCII
- Added compatibility with QT_NO_KEYWORDS after sending code files through a simple reg-ex script
- Added possibility to inject own QCPAxis(-subclasses) via second, optional QCPAxisRect::addAxis parameter
- Added parameter to QCPItemPixmap::setScaled to specify transformation mode

Bugfixes:
- Fixed bug that caused crash if clicked-on legend item is removed in mousePressEvent.
- On some systems, font size defaults to -1, which used to cause a debug output in QCPAxisPainterPrivate::TickLabelDataQCP. Now it's checked before setting values based on the default font size.
- When using multiple axes on one side, setting one to invisible didn't properly compress the freed space.
- Fixed bug that allowed selection of plottables when clicking in the bottom or top margin of a QCPAxisRect (outside the inner rect)
- Fixed bug in QCPCurve rendering of very zoomed-in curves (via new optimization algorithm)
- Fixed conflict with MSVC-specific keyword "interface" in text-document-integration example
- Fixed QCPScatterStyle bug ignoring the specified pen in the custom scatter shape constructor
- Fixed bug (possible crash) during QCustomPlot teardown, when a QCPLegend that has no parent layout (i.e. was removed from layout manually) gets deleted
Bugfixes after beta:
- Fixed bug of QCPColorMap/QCPColorGradient colors being off by one color sampling step (only noticeable in special cases)
- Fixed bug of QCPGraph adaptive sampling on vertical key axis, causing staggered look
- Fixed low (float) precision in QCPCurve optimization algorithm, by not using QVector2D anymore

Other:
- Qt 5.3 and Qt 5.4 compatibility

#### Version 1.2.1 released on 07.04.14 ####

Bugfixes:
- Fixed regression which garbled date-time tick labels on axes, if setTickLabelType is ltDateTime and setNumberFormat contains the "b" option

#### Version 1.2.0-beta released on 28.01.14 ####
#### Version 1.2.0 released on 14.03.14 ####

Added features:
- Adaptive Sampling for QCPGraph greatly improves performance for high data densities (see QCPGraph::setAdaptiveSampling)
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- Fixed painting glitches when QCustomPlot resized inside a QMdiArea or under certain conditions inside a QLayout
- If changing QCPAxis::scaleType and thus causing range sanitizing and a range modification, rangeChanged wouldn't be emitted
- Fixed documentation bug that caused indentation to be lost in code examples
Bugfixes after beta:
- Fixed bug that caused crash if clicked-on legend item is removed in mousePressEvent.
- On some systems, font size defaults to -1, which used to cause a debug output in QCPAxisPainterPrivate::TickLabelDataQCP. Now it's checked before setting values based on the default font size.
- When using multiple axes on one side, setting one to invisible didn't properly compress the freed space.
- Fixed bug that allowed selection of plottables when clicking in the bottom or top margin of a QCPAxisRect (outside the inner rect)

Other:
- In method QCPAbstractPlottable::getKeyRange/getValueRange, renamed parameter "validRange" to "foundRange", to better reflect its meaning (and contrast it from QCPRange::validRange)
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#### Version 1.0.0 released on 01.08.13 ####

Added features:
- Added QCustomPlot::toPainter method, to allow rendering with existing painter
- QCPItemEllipse now provides a center anchor

Bugfixes:
- Fixed bug that clipped the rightmost pixel column of tick labels when caching activated (only visible on windows for superscript exponents)
- Restored compatibility to Qt4.6
- Restored support for -no-RTTI compilation
- Empty manual tick labels are handled more gracefully (no QPainter qDebug messages anymore)
- Fixed type ambiguity in QCPLineEnding::draw causing compile error on ARM
- Fixed bug of grid layouts not propagating the minimum size from their child elements to the parent layout correctly
- Fixed bug of child elements (e.g. axis rects) of inset layouts not properly receiving mouse events

#### Version 1.0.0-beta released on 19.05.13 ####

Quick Summary:
- Layout system for multiple axis rects in one plot
- Multiple axes per side
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- Added new default layers "background" and "legend" (QCPAxisRect draws its background on the "background" layer, QCPLegend is on the "legend" layer by default)
- Custom scatter style via QCP::ssCustom and respective setCustomScatter functions that take a QPainterPath
- Filled scatters via QCPScatterStyle::setBrush
Added features after beta:
- Added QCustomPlot::toPainter method, to allow rendering with existing painter
- QCPItemEllipse now provides a center anchor

Bugfixes:
- Fixed compile error on ARM
Expand All @@ -156,7 +192,14 @@
- Fixed bug that caused wrong clipping of axis ticks and subticks when the ticks were given manually by QCPAxis::setTickVector
- Fixed Qt5 crash when dragging graph out of view (iterator out of bounds in QCPGraph::getVisibleDataBounds)
- Fixed QCPItemText not scaling properly when using scaled raster export

Bugfixes after beta:
- Fixed bug that clipped the rightmost pixel column of tick labels when caching activated (only visible on windows for superscript exponents)
- Restored compatibility to Qt4.6
- Restored support for -no-RTTI compilation
- Empty manual tick labels are handled more gracefully (no QPainter qDebug messages anymore)
- Fixed type ambiguity in QCPLineEnding::draw causing compile error on ARM
- Fixed bug of grid layouts not propagating the minimum size from their child elements to the parent layout correctly
- Fixed bug of child elements (e.g. axis rects) of inset layouts not properly receiving mouse events

Other:
- Opened up non-amalgamated project structure to public via git repository
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