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Cairo-Chart
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Merge branch '#141_atomic_zoom_fields' into develop

This commit is contained in:
Kolan Sh 2017-10-25 22:14:16 +03:00
parent 0aa479a2be 37e72a0d75
commit 0d8d19250d
3 changed files with 87 additions and 81 deletions
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155
src/Chart.vala
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@ -16,19 +16,7 @@ namespace Gtk.CairoChart {
public Legend legend = new Legend ();
Series[] _series = {};
public Series[] series {
get { return _series; }
set {
_series = value.copy();
zoom_series = value.copy();
for (var i = 0; i < value.length; ++i) {
_series[i] = value[i].copy();
zoom_series[i] = value[i].copy();
}
}
}
public Series[] zoom_series = {};
public Series[] series = {};
protected LineStyle selection_style = LineStyle ();
@ -99,32 +87,25 @@ namespace Gtk.CairoChart {
}
}
Series[] rm_series_by_idx (Series[] series, int idx) {
Series[] new_series = series.copy();
for (var i = idx + 1; i < series.length; ++i)
new_series[i - 1] = series[i];
new_series.length--;
return new_series;
}
double rel_zoom_x_min = 0.0;
double rel_zoom_x_max = 1.0;
double rel_zoom_y_min = 0.0;
double rel_zoom_y_max = 1.0;
int zoom_first_show = 0;
public virtual void zoom_in (double x0, double y0, double x1, double y1) {
for (var i = 0, max_i = zoom_series.length; i < max_i; ++i) {
var s = zoom_series[i];
for (var si = 0, max_i = series.length; si < max_i; ++si) {
var s = series[si];
if (!s.zoom_show) continue;
var real_x0 = get_real_x (s, x0);
var real_x1 = get_real_x (s, x1);
var real_y0 = get_real_y (s, y0);
var real_y1 = get_real_y (s, y1);
// if selected square does not intersect with the zoom_series's square
// if selected square does not intersect with the series's square
if ( real_x1 <= s.axis_x.zoom_min || real_x0 >= s.axis_x.zoom_max
|| real_y0 <= s.axis_y.zoom_min || real_y1 >= s.axis_y.zoom_max) {
zoom_series = rm_series_by_idx (zoom_series, i);
--i;
--max_i;
s.zoom_show = false;
continue;
}
if (real_x0 >= s.axis_x.zoom_min) {
@ -153,6 +134,13 @@ namespace Gtk.CairoChart {
}
}
zoom_first_show = 0;
for (var si = 0, max_i = series.length; si < max_i; ++si)
if (series[si].zoom_show) {
zoom_first_show = si;
break;
}
var new_rel_zoom_x_min = rel_zoom_x_min + (x0 - plot_area_x_min) / (plot_area_x_max - plot_area_x_min) * (rel_zoom_x_max - rel_zoom_x_min);
var new_rel_zoom_x_max = rel_zoom_x_min + (x1 - plot_area_x_min) / (plot_area_x_max - plot_area_x_min) * (rel_zoom_x_max - rel_zoom_x_min);
var new_rel_zoom_y_min = rel_zoom_y_min + (y0 - plot_area_y_min) / (plot_area_y_max - plot_area_y_min) * (rel_zoom_y_max - rel_zoom_y_min);
@ -164,12 +152,8 @@ namespace Gtk.CairoChart {
}
public virtual void zoom_out () {
zoom_series = _series.copy();
for (var i = 0; i < _series.length; ++i) {
_series[i] = _series[i].copy();
zoom_series[i] = _series[i].copy();
}
foreach (var s in zoom_series) {
foreach (var s in series) {
s.zoom_show = true;
s.axis_x.zoom_min = s.axis_x.min;
s.axis_x.zoom_max = s.axis_x.max;
s.axis_y.zoom_min = s.axis_y.min;
@ -183,6 +167,8 @@ namespace Gtk.CairoChart {
rel_zoom_x_max = 1;
rel_zoom_y_min = 0;
rel_zoom_y_max = 1;
zoom_first_show = 0;
}
public virtual void move (double delta_x, double delta_y) {
@ -367,7 +353,9 @@ namespace Gtk.CairoChart {
break;
}
foreach (var s in zoom_series) {
foreach (var s in series) {
if (!s.zoom_show) continue;
// carry
switch (legend.position) {
@ -396,12 +384,12 @@ namespace Gtk.CairoChart {
var x = legend_x0 + leg_width_sum + (leg_width_sum == 0.0 ? 0.0 : legend_text_hspace);
var y = legend_y0 + leg_height_sum + max_font_heights[heights_idx];
// zoom_series title
// series title
context.move_to (x + legend_line_length - s.title.get_x_bearing(context), y);
set_source_rgba (s.title.color);
show_text(s.title);
// zoom_series line style
// series line style
context.move_to (x, y - s.title.get_height(context) / 2);
set_line_style(s.line_style);
context.rel_line_to (legend_line_length, 0);
@ -549,8 +537,8 @@ namespace Gtk.CairoChart {
}
protected virtual void set_vertical_axes_titles () {
for (var i = 0; i < zoom_series.length; ++i) {
var s = zoom_series[i];
for (var si = 0; si < series.length; ++si) {
var s = series[si];
s.axis_y.title.style.orientation = FontOrient.VERTICAL;
}
}
@ -563,28 +551,32 @@ namespace Gtk.CairoChart {
// Check for common axes
common_x_axes = common_y_axes = true;
for (int si = zoom_series.length - 1; si >=0; --si) {
var s = zoom_series[si];
if ( s.axis_x.position != zoom_series[0].axis_x.position
|| s.axis_x.zoom_min != zoom_series[0].axis_x.zoom_min
|| s.axis_x.zoom_max != zoom_series[0].axis_x.zoom_max
|| s.place.zoom_x_low != zoom_series[0].place.zoom_x_low
|| s.place.zoom_x_high != zoom_series[0].place.zoom_x_high
|| s.axis_x.type != zoom_series[0].axis_x.type)
int nzoom_series_show = 0;
for (var si = series.length - 1; si >=0; --si) {
var s = series[si];
if (!s.zoom_show) continue;
++nzoom_series_show;
if ( s.axis_x.position != series[0].axis_x.position
|| s.axis_x.zoom_min != series[0].axis_x.zoom_min
|| s.axis_x.zoom_max != series[0].axis_x.zoom_max
|| s.place.zoom_x_low != series[0].place.zoom_x_low
|| s.place.zoom_x_high != series[0].place.zoom_x_high
|| s.axis_x.type != series[0].axis_x.type)
common_x_axes = false;
if ( s.axis_y.position != zoom_series[0].axis_y.position
|| s.axis_y.zoom_min != zoom_series[0].axis_y.zoom_min
|| s.axis_y.zoom_max != zoom_series[0].axis_y.zoom_max
|| s.place.zoom_y_low != zoom_series[0].place.zoom_y_low
|| s.place.zoom_y_high != zoom_series[0].place.zoom_y_high)
if ( s.axis_y.position != series[0].axis_y.position
|| s.axis_y.zoom_min != series[0].axis_y.zoom_min
|| s.axis_y.zoom_max != series[0].axis_y.zoom_max
|| s.place.zoom_y_low != series[0].place.zoom_y_low
|| s.place.zoom_y_high != series[0].place.zoom_y_high)
common_y_axes = false;
}
if (zoom_series.length == 1) common_x_axes = common_y_axes = false;
if (nzoom_series_show == 1) common_x_axes = common_y_axes = false;
// Join and calc X-axes
for (int si = zoom_series.length - 1, nskip = 0; si >=0; --si) {
for (var si = series.length - 1, nskip = 0; si >=0; --si) {
var s = series[si];
if (!s.zoom_show) continue;
if (nskip != 0) {--nskip; continue;}
var s = zoom_series[si];
double max_rec_width = 0; double max_rec_height = 0;
calc_axis_rec_sizes (s.axis_x, out max_rec_width, out max_rec_height, true);
var max_font_indent = s.axis_x.font_indent;
@ -592,10 +584,12 @@ namespace Gtk.CairoChart {
// join relative x-axes with non-intersect places
for (int sj = si - 1; sj >= 0; --sj) {
var s2 = zoom_series[sj];
var s2 = series[sj];
if (!s2.zoom_show) continue;
bool has_intersection = false;
for (int sk = si; sk > sj; --sk) {
var s3 = zoom_series[sk];
var s3 = series[sk];
if (!s3.zoom_show) continue;
if (are_intersect(s2.place.zoom_x_low, s2.place.zoom_x_high, s3.place.zoom_x_low, s3.place.zoom_x_high)
|| s2.axis_x.position != s3.axis_x.position
|| s2.axis_x.type != s3.axis_x.type) {
@ -617,7 +611,7 @@ namespace Gtk.CairoChart {
}
}
if (!common_x_axes || si == 0)
if (!common_x_axes || si == zoom_first_show)
switch (s.axis_x.position) {
case Axis.Position.LOW: plot_area_y_max -= max_rec_height + max_font_indent + max_axis_font_height; break;
case Axis.Position.HIGH: plot_area_y_min += max_rec_height + max_font_indent + max_axis_font_height; break;
@ -627,9 +621,10 @@ namespace Gtk.CairoChart {
}
// Join and calc Y-axes
for (int si = zoom_series.length - 1, nskip = 0; si >=0; --si) {
for (var si = series.length - 1, nskip = 0; si >=0; --si) {
var s = series[si];
if (!s.zoom_show) continue;
if (nskip != 0) {--nskip; continue;}
var s = zoom_series[si];
double max_rec_width = 0; double max_rec_height = 0;
calc_axis_rec_sizes (s.axis_y, out max_rec_width, out max_rec_height, false);
var max_font_indent = s.axis_y.font_indent;
@ -637,10 +632,12 @@ namespace Gtk.CairoChart {
// join relative x-axes with non-intersect places
for (int sj = si - 1; sj >= 0; --sj) {
var s2 = zoom_series[sj];
var s2 = series[sj];
if (!s2.zoom_show) continue;
bool has_intersection = false;
for (int sk = si; sk > sj; --sk) {
var s3 = zoom_series[sk];
var s3 = series[sk];
if (!s3.zoom_show) continue;
if (are_intersect(s2.place.zoom_y_low, s2.place.zoom_y_high, s3.place.zoom_y_low, s3.place.zoom_y_high)
|| s2.axis_y.position != s3.axis_y.position
|| s2.axis_x.type != s3.axis_x.type) {
@ -662,7 +659,7 @@ namespace Gtk.CairoChart {
}
}
if (!common_y_axes || si == 0)
if (!common_y_axes || si == zoom_first_show)
switch (s.axis_y.position) {
case Axis.Position.LOW: plot_area_x_min += max_rec_width + max_font_indent + max_axis_font_width; break;
case Axis.Position.HIGH: plot_area_x_max -= max_rec_width + max_font_indent + max_axis_font_width; break;
@ -679,9 +676,10 @@ namespace Gtk.CairoChart {
}
protected virtual void draw_horizontal_axis () {
for (int si = zoom_series.length - 1, nskip = 0; si >=0; --si) {
if (common_x_axes && si != 0) continue;
var s = zoom_series[si];
for (var si = series.length - 1, nskip = 0; si >=0; --si) {
var s = series[si];
if (!s.zoom_show) continue;
if (common_x_axes && si != zoom_first_show) continue;
// 1. Detect max record width/height by axis_rec_npoints equally selected points using format.
double max_rec_width, max_rec_height;
calc_axis_rec_sizes (s.axis_x, out max_rec_width, out max_rec_height, true);
@ -830,10 +828,12 @@ namespace Gtk.CairoChart {
// join relative x-axes with non-intersect places
for (int sj = si - 1; sj >= 0; --sj) {
var s2 = zoom_series[sj];
var s2 = series[sj];
if (!s2.zoom_show) continue;
bool has_intersection = false;
for (int sk = si; sk > sj; --sk) {
var s3 = zoom_series[sk];
var s3 = series[sk];
if (!s3.zoom_show) continue;
if (are_intersect(s2.place.zoom_x_low, s2.place.zoom_x_high, s3.place.zoom_x_low, s3.place.zoom_x_high)
|| s2.axis_x.position != s3.axis_x.position
|| s2.axis_x.type != s3.axis_x.type) {
@ -867,9 +867,10 @@ namespace Gtk.CairoChart {
}
protected virtual void draw_vertical_axis () {
for (int si = zoom_series.length - 1, nskip = 0; si >=0; --si) {
if (common_y_axes && si != 0) continue;
var s = zoom_series[si];
for (var si = series.length - 1, nskip = 0; si >=0; --si) {
var s = series[si];
if (!s.zoom_show) continue;
if (common_y_axes && si != zoom_first_show) continue;
// 1. Detect max record width/height by axis_rec_npoints equally selected points using format.
double max_rec_width, max_rec_height;
calc_axis_rec_sizes (s.axis_y, out max_rec_width, out max_rec_height, false);
@ -970,10 +971,12 @@ namespace Gtk.CairoChart {
// join relative x-axes with non-intersect places
for (int sj = si - 1; sj >= 0; --sj) {
var s2 = zoom_series[sj];
var s2 = series[sj];
if (!s2.zoom_show) continue;
bool has_intersection = false;
for (int sk = si; sk > sj; --sk) {
var s3 = zoom_series[sk];
var s3 = series[sk];
if (!s3.zoom_show) continue;
if (are_intersect(s2.place.zoom_y_low, s2.place.zoom_y_high, s3.place.zoom_y_low, s3.place.zoom_y_high)
|| s2.axis_y.position != s3.axis_y.position) {
has_intersection = true;
@ -1119,8 +1122,9 @@ namespace Gtk.CairoChart {
}
protected virtual void draw_series () {
for (int si = 0; si < zoom_series.length; ++si) {
var s = zoom_series[si];
for (var si = 0; si < series.length; ++si) {
var s = series[si];
if (!s.zoom_show) continue;
if (s.points.length == 0) continue;
var points = s.points.copy();
switch(s.sort) {
@ -1140,7 +1144,7 @@ namespace Gtk.CairoChart {
break;
}
set_line_style(s.line_style);
// draw zoom_series line
// draw series line
for (int i = 1; i < points.length; ++i) {
Point c, d;
if (cut_line (Point(get_scr_x(s, points[i - 1].x), get_scr_y(s, points[i - 1].y)),
@ -1194,7 +1198,6 @@ namespace Gtk.CairoChart {
chart.rel_zoom_y_min = this.rel_zoom_y_min;
chart.rel_zoom_y_max = this.rel_zoom_y_max;
chart.selection_style = this.selection_style;
chart.zoom_series = this.zoom_series.copy();
chart.show_legend = this.show_legend;
chart.title = this.title.copy().copy();
chart.title_height = this.title_height;

5
src/Series.vala
View File

@ -31,7 +31,6 @@ namespace Gtk.CairoChart {
public Grid grid = new Grid ();
public GLib.List<Float128?> cursors = new List<Float128?> ();
public LineStyle line_style = LineStyle ();
protected Color _color = Color (0.0, 0.0, 0.0, 1.0);
@ -50,12 +49,13 @@ namespace Gtk.CairoChart {
default = Color (0.0, 0.0, 0.0, 1.0);
}
public bool zoom_show = true;
public Series copy () {
var series = new Series ();
series._color = this._color;
series.axis_x = this.axis_x.copy ();
series.axis_y = this.axis_y.copy ();
series.cursors = this.cursors.copy ();
series.grid = this.grid.copy ();
series.line_style = this.line_style;
series.marker_type = this.marker_type;
@ -63,6 +63,7 @@ namespace Gtk.CairoChart {
series.points = this.points.copy();
series.sort = this.sort;
series.title = this.title.copy();
series.zoom_show = this.zoom_show;
return series;
}

8
test/ChartTest.vala
View File

@ -223,8 +223,8 @@ int main (string[] args) {
var button3 = new Button.with_label("Common Y axes");
var button4 = new Button.with_label("Dates/Times");
var button5 = new Button.with_label("rm Axis Titles");
var button6 = new Button.with_label("rm Dates");
var button7 = new Button.with_label("rm Times");
var button6 = new Button.with_label("Dates only");
var button7 = new Button.with_label("Times only");
plot_chart1 (chart1);
plot_chart2 (chart2);
@ -295,7 +295,8 @@ int main (string[] args) {
button6.clicked.connect (() => {
for (var i = 0; i < chart.series.length; ++i) {
var s = chart.series[i];
s.axis_x.date_format = "";
s.axis_x.date_format = "%Y.%m.%d";
s.axis_x.time_format = "";
}
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
});
@ -304,6 +305,7 @@ int main (string[] args) {
for (var i = 0; i < chart.series.length; ++i) {
var s = chart.series[i];
s.axis_x.time_format = "";
s.axis_x.date_format = "%H:%M:%S";
}
da.queue_draw_area(0, 0, da.get_allocated_width(), da.get_allocated_height());
});