NEWS.md

1.10.0

New features

• Introduce regions for smooth line & smooth line area from Laurent Callarec
• Sliding timeline : PR from Robert-Ordis
• Seek, pause and resume timeline : PR from Robert-Ordis
• Add GTK4 support and drop GTK3 : PR from taozuhong

Fixes

• Properly remove a serie PR from Robert-Ordis

1.9.1

Fixes

• Missing second point in line / line-area serie

• Last point in line / line-area rendered twice

• Left padding when auto padding is enabled and y axis has no unit

• Crash when accessing deprecated Chart.background.main_color property

• Tests can ran deprecated stuff without warnings

1.9.0

New features

• LiveChart.MaxBoundLine and LiveChart.MinBoundLine

Max and Min bound line renderer draws a straight line which represents either a MIN or a MAX of a given serie, or of all series.

var heap = new LiveChart.Serie("HEAP", new LiveChart.SmoothLineArea());
heap.line.color = { 0.3f, 0.8f, 0.1f, 1.0f };

var rss = new LiveChart.Serie("RSS",  new LiveChart.Line());
rss.line.color = { 0.8f, 0.1f, 0.8f, 1.0f };

var max = new LiveChart.Serie("MAX OF RSS OR HEAP", new LiveChart.MaxBoundLine());
var mrss = new LiveChart.Serie("MAX HEAP", new LiveChart.MaxBoundLine.from_serie(rss));
max.line.color = { 0.8f, 0.5f, 0.2f, 1.0f };
mrss.line.color = { 0.5f, 0f, 1.0f, 1.0f };

chart.add_serie(heap);
chart.add_serie(rss);
chart.add_serie(max);
chart.add_serie(mrss);

1.8.0

New features

• Add a new LiveChart.ThresholdLine renderer which draw a straight line at a given value. Below, the red threshold line is defined at 200MB :

var threshold = new LiveChart.Serie("threshold",  new LiveChart.ThresholdLine(200.0));
threshold.line.color = { 0.8f, 0.1f, 0.1f, 1.0f };
threshold.value = 250.0; // update threshold at runtime

• Add serie line / outline configuration options via LiveChart.Serie.line. Full configuration details available in Path class.

serie.line.color = { 0.0f, 0.1f, 0.8f, 1.0f };
serie.line.width = 2;
serie.line.dash = Dash() {dashes = {1}, offset = 2};
serie.line.visibility = false;//or true

Deprecations

• Renderers main_color properties are now deprecated and will be removed in LiveChart 2. Use SerieRenderer.color property instead.
• Background.main_color property is now deprecated and will be removed in LiveChart 2. Use Background.color property instead.

1.7.1

New feature

• Add a serie.add_with_timestamp(double value, int64 timestamp) method when you need to add a value with a manually defined timstamp, in milliseconds

Deprecations

• Serie.set_main_color and Serie.get_main_color methods are now deprecated and will be removed in LiveChart 2. Use serie.main_color property instead.

1.7.0

New features

• Series can be retrieved using Chart.series property, by index using array access notation or getter (Chart.series[index] or Chart.series.get(int index)), or by name (Chart.series.get_by_name(string name)). Adding a new value to a serie is simpler : get the serie (either from where you created it or from chart's property) and add a value with Serie.add(double value)

Deprecations

• Hence Chart.add_value and Chart.add_value_by_index methods are now deprecated and will be removed in LiveChart 2. Use above new methods instead.

1.6.1

Contributions from https://github.com/taozuhong:

Fixes

• Compile error https://github.com/taozuhong on MSYS2

Misc

• Build shared library if needed

1.6.0

API

• add chart.add_unaware_timestamp_collection_by_index(int serie_index, Gee.Collection<double?> collection, int timespan_between_value) method, to add your own data collection to a serie given its serie_index (unlike chart.add_unaware_timestamp_collection() which takes the serie as argument)

Fixes

• Crash when the max value of a serie is 0
• Crash when the chart widget is realized before any data is added

1.5.1

API

• add chart.add_value_by_index(int serie_index, double value) method, to add a value to a serie given its serie_index (unlike chart.add_value() which takes the serie as argument)

1.5.0

New feature

• Configure legend font

var chart = new LiveChart.Chart(config);
var legend = vhart.legend;

legend.labels.font.size = 12;                      // uint8     In pixels
legend.labels.font.color = { 1.0f, 0.0f, 0.0f, 1.0f };   // Gdk.RGBA
legend.labels.font.weight = Cairo.FontWeight.BOLD; // Cairo.FontWeight
legend.labels.font.slant =  Cairo.FontSlant.ITALIC;// Cairo.FontSlant

• Configure axis labels font

var labels;

labels = config.x_axis.labels;
//or
labels = config.y_axis.labels;

labels.font.size = 12;                      // uint8     In pixels
labels.font.color = { 1.0f, 0.0f, 0.0f, 1.0f };   // Gdk.RGBA
labels.font.weight = Cairo.FontWeight.BOLD; // Cairo.FontWeight
labels.font.slant =  Cairo.FontSlant.ITALIC;// Cairo.FontSlant

• Improved legend labels vertical alignement

1.4.0

New feature

• 70370e Import your own timestamp unaware data collection

1.3.3

API

• e36b6b Can now retrieve underlying Values object from Serie
• 6fc2f4 Can now clear Values object from Serie

1.3.2

New feature

• Open LiveChart Valadoc to public

Fixes

• c77e2c Wrong default Path colors

Misc

• Improve documentation

Internals

• Merge source files

1.3.1

Misc

• Create Valadoc

Internals

• Merge source files
• Remove obsolete Makefile

1.3.0

New features

• 8fe363 Configurate main axis (abscissa and ordinate lines) color, line width and dash style

API change

• 79e96b Chart config is now a public chart attribute

Internals

• db7766 Axis class type is replaced with more convenient Path class.

Misc

• Improve documentation

1.2.1

Internal changes

• 24258e Internally, structs Axis and Labels are replaced by classes
• Improve tests

1.2.0

New features

• Configurate guidelines color, line width and dash style
• Guidelines can be hidden independently from the whole grid
• Main axes (abscissa and ordinate lines) can be hidden independently from the whole grid
• Time and value labels can be hidden
• Auto padding configuration is not nullable, use LiveChart.AutoPadding.NONE instead
• Add license, release badges to README

1.1.0

New features

• Grid and legend can be hidden