#### Version 2.0.1 released on 25.06.18 ####
Bugfixes:
- Default filling order of QCPLayoutGrid is now foColumnsFirst instead of foRowsFirst, as intended and consistent with QCP1.
Note that this also changes the indexing order of e.g. QCustomPlot::axisRect(int index), compared with 2.0.0. You can change
the filling and thus indexing order yourself by calling QCPLayoutGrid::setFillOrder.
- fixed bug in QCPColorMap, when using alpha in the gradient color stops. Used to draw falsely black data points when the associated data value is exactly
on the first or last color stop.
- QCPDataSelection::enforceType(stDataRange) would erroneously add an empty data range to the selection, if the selection was already empty.
This in turn would cause isEmpty() to erroneously return false.
- fixed hypothetical crash when selectTest is called on a QCPItemCurve which has all of its points at the same position
Other:
- Various documentation improvements and clarifications
- Prevent conflict with windows.h min/max macros if user forgets to define NOMINMAX
- compiling QCP shared libraries with static Qt is now easier
- added defines QCUSTOMPLOT_VERSION and QCUSTOMPLOT_VERSION_STR (the same way Qt does) to provide the used QCP version number
- added missing Q_DECL_OVERRIDE declarations, thus preventing warnings some compiler settings
- QCPAxisTicker and subclasses are no longer copyable by value, as intended
- QCPBarsGroup constructor is now explicit, as intended
- Qt 5.11 compatibility
#### Version 2.0.0 released on 04.09.17 ####
Added major features:
- Axis tick and tick label generation was completely refactored and is now handled in the QCPAxisTicker class (also see QCPAxis::setTicker). Available ticker subclasses for special uses cases:
QCPAxisTicker, QCPAxisTickerFixed, QCPAxisTickerLog, QCPAxisTickerPi, QCPAxisTickerTime, QCPAxisTickerDateTime, QCPAxisTickerText
- Data container is now based on QCPDataContainer template for unified data interface and significantly improved memory footprint and better performance for common use-cases, especially data adding/removing.
- New data selection mechanism allows selection of single data points and data ranges for plottables. See special documentation page "data selection mechanism".
- Rubber band/selection rect for data point selection and axis zooming is now available, see documentation of QCustomPlot::setSelectionRectMode and QCPSelectionRect. For this purpose, the new default
layer "overlay" was introduced, which is now the top layer, and holds the QCustomPlot's QCPSelectionRect instance.
- Data sharing between plottables of the same type (see setData methods taking a QSharedPointer)
- OpenGL hardware acceleration is now available across all Qt versions (including Qt4) in a unified, simple interface, with QCustomPlot::setOpenGl (experimental)
- QCPStatisticalBox can now display a series of statistical boxes instead of only a single one
- New QCPErrorBars plottable allows attaching error bars to any one-dimensional plottable (QCPGraph has thus lost its own error-bar capability)
- QCPColorMap now supports transparency via alpha in its color gradient stops, and via a dedicated cell-wise alpha map (see QCPColorMapData::setAlpha)
- Layers may now be individually replotted (QCPLayer::replot), if the mode (QCPLayer::setMode) is set to lmBuffered. Mutually adjacent lmLogical layers share a single paint buffer to save resources.
By default, the new topmost "overlay" layer which contains the selection rect is an lmBuffered layer. Updating the selection rect is thus very fast, independent of the plot contents.
- QCPLayerable (and thus practically all objects in QCP) now have virtual methods to receive mouse press/move/release/doubleclick/wheel events. Before, only QCPLayoutElement provided them.
this makes it much easier to subclass e.g. items and plottables to provide custom mouse interactions that were cumbersome and awkward with the simpler signal-based interface
Added minor features:
- High-DPI support for Qt versions 5.0 and up, using device pixel ratio detected by Qt (can be changed manually via QCustomPlot::setBufferDevicePixelRatio).
- QCPGraph and QCPCurve can now be configured to only display every n'th scatter symbol, see ::setScatterSkip() method
- QCPFinancial allows to define bar width in absolute pixels and axis rect ratio, instead of only in plot key coordinates (see QCPFinancial::setWidthType)
- Range dragging/zooming can now be configured to affect more than one axis per orientation (see new overloads of QCPAxisRect::setRangeDragAxes/setRangeZoomAxes)
- Added QCPTextElement (replaces QCPPlotTitle) for general texts in layouts. Provides clicked and doubleClicked signals, as replacement for the removed QCustomPlot::titleClicked/titleDoubleClicked
- Export functions (QCustomPlot::savePng etc.) now support specifying the resolution that will be written to the image file header. This improves operability with other tools which respect metadata.
- Replots can now be queued to the next event loop iteration with replot(QCP::rpQueuedReplot). This way you can successively ask for a replot at multiple code locations without causing redundant replots
- QCPAxisRect::zoom(...) allows to zoom to a specific rectangular region given in pixel coordinates, either affecting all axes or a specified subset of axes.
- QCPRange::bounded returns a bounded range, trying to preserve its size. Works with rangeChanged signal to limit the allowed range (see rangeChanged doc)
- Plottable rescaleValueAxis method (and getValueRange) now take parameter inKeyRange, which allows rescaling of the value axis only with respect to data in the currently visible key range
- plottableClick and plottableDoubleClick signals now carry the clicked data point index as second parameter
- Added QCPAxis::scaleRange overload without "center" argument, which scales around the current axis range center
- Added QCPRange::expand/expanded overloads which take only one double parameter
- Plottables addToLegend/removeFromLegend methods now have overloads that take any QCPLegend, to make working with non-default legends easier (legends that are not QCustomPlot::legend)
- Added QCPStatisticalBox::setWhiskerAntialiased to allow controlling antialiasing state of whiskers independently of quartile box/median line
- The virtual method QCPLayoutElement::layoutChanged() now allows subclasses to react on a move of the layout element between logical positions in the parent layout, or between layouts
- QCPMarginGroup::commonMargin is now virtual, to facilitate subclassing of QCPMarginGroup
- QCPGraph::getPreparedData is now virtual, and thus allows subclasses to easily generate own plotted data, e.g. on-the-fly.
- Added QCPRange qDebug stream operator
- QCPLayoutGrid (and thus QCPLegend) can now wrap rows or columns at specified row/column counts, see setFillOrder, setWrap and the new addElement overload which doesn't have row/column index
Added minor features after beta:
- QCPGraph fill now renders separate fill segments when there are gaps in the graph data (created by inserting NaN values)
- fractional device pixel ratios are now used, if Qt version >= 5.6
- Axes may now be dragged/zoomed individually by starting the drag/zoom on top of the axis (previously, this required additional code)
- Manual minimum and maximum layout element sizes (setMinimumSize/setMaximumSize) can now affect the inner or the outer rect, see QCPLayoutElement::setSizeConstraintRect
Bugfixes [Also backported to 1.3.2]:
- Fixed possible crash when having a QCPGraph with scatters only and a non-transparent main/fill brush of the graph
- Fixed QCPItemPixmap not updating internally cached scaled pixmap if new pixmap set with same scaled dimensions
- When using log axis scale and zooming out as far as possible (~1e-280..1e280), axis doesn't end up in (via mouse) unrec
QT控件仪表盘源代码，亲测可用
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QT控件仪表盘源代码，亲测可用 （594个子文件） 
myValueControl.pro.user.2.1pre1 13KB myValueControl.pro.user.8155227.4.8-pre1 23KB qcustomplot.cpp 1.07MB mainwindow.cpp 66KB qrc_myResource.cpp 57KB qrc_myResource.cpp 57KB mylcdnumber.cpp 23KB frmmain.cpp 22KB moc_frmmain.cpp 13KB moc_frmmain.cpp 13KB mainwindow.cpp 12KB moc_myflashlist.cpp 11KB moc_myflashlist.cpp 11KB mygauge2.cpp 10KB myflashlist.cpp 10KB mynewled.cpp 9KB moc_myphotoview.cpp 9KB moc_myphotoview.cpp 9KB mygauge3.cpp 9KB myphotoview.cpp 8KB mygauge1.cpp 8KB moc_mybuttonboard.cpp 8KB mygauge5.cpp 8KB moc_mybuttonboard.cpp 8KB mybuttonboard.cpp 7KB mysliderbutton.cpp 7KB mygauge6.cpp 6KB mainwindow.cpp 6KB mygauge4.cpp 6KB myprogressbar.cpp 6KB mychart1.cpp 6KB moc_mygauge4.cpp 6KB moc_mygauge4.cpp 5KB axistag.cpp 5KB mycoolbar.cpp 5KB mygauge7.cpp 5KB moc_mygauge3.cpp 5KB moc_mygauge3.cpp 5KB mainwindow.cpp 5KB myindicator.cpp 5KB moc_mychart1.cpp 5KB moc_mychart1.cpp 5KB moc_mysliderbutton.cpp 5KB moc_mysliderbutton.cpp 5KB mywave2.cpp 5KB moc_mybattery.cpp 5KB moc_mygauge6.cpp 5KB moc_mygauge6.cpp 5KB moc_mynewled.cpp 4KB moc_mybattery.cpp 4KB moc_mynewled.cpp 4KB mainwindow.cpp 4KB moc_mygauge2.cpp 4KB moc_mycoolbar.cpp 4KB moc_myprogressbar.cpp 4KB moc_mycoolbar.cpp 4KB moc_myprogressbar.cpp 4KB moc_mygauge7.cpp 4KB moc_mygauge7.cpp 4KB moc_mygauge2.cpp 4KB moc_myindicator.cpp 4KB moc_myindicator.cpp 4KB moc_mygauge1.cpp 4KB moc_mygauge5.cpp 4KB moc_mygauge1.cpp 4KB moc_mygauge5.cpp 4KB moc_mywave2.cpp 4KB mywave1.cpp 4KB moc_mywave2.cpp 4KB moc_mywave1.cpp 4KB moc_mywave1.cpp 4KB moc_mylcdnumber.cpp 4KB moc_mylcdnumber.cpp 3KB moc_myaroundcircle.cpp 3KB moc_myaroundcircle.cpp 3KB myprogressbar1.cpp 3KB moc_myvolume.cpp 3KB moc_myvolume.cpp 3KB qcpdocumentobject.cpp 3KB moc_mywave.cpp 3KB moc_mywave.cpp 3KB mybattery.cpp 3KB mywave.cpp 3KB myaroundcircle.cpp 3KB moc_myprogressbar1.cpp 3KB moc_myprogressbar1.cpp 3KB myvolume.cpp 3KB main.cpp 2KB main.cpp 789B main.cpp 166B main.cpp 166B main.cpp 166B main.cpp 166B qcp.css 11KB tabs.css 9KB Thumbs.db 6KB Makefile.Debug 996KB Makefile.Debug 986KB object_script.myValueControl.Debug 1KB object_script.myValueControl.Debug 1KB共 594 条
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