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This commit is contained in:
Kolan Sh 2018-01-22 19:03:31 +03:00
parent 6de38bdb9f
commit 10fc250f5f
1 changed files with 211 additions and 211 deletions

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@ -116,37 +116,6 @@ namespace CairoChart {
return true;
}
protected virtual void calc_rec_sizes (Axis axis, out double max_rec_width, out double max_rec_height, bool horizontal = true) {
max_rec_width = max_rec_height = 0;
for (var i = 0; i < axis.nrecords; ++i) {
Float128 x = (int64)(axis.range.zmin + axis.range.zrange / axis.nrecords * i) + 1/3.0;
switch (axis.dtype) {
case Axis.DType.NUMBERS:
var text = new Text (chart, axis.format.printf((LongDouble)x) + (horizontal ? "_" : ""), axis.font);
max_rec_width = double.max (max_rec_width, text.width);
max_rec_height = double.max (max_rec_height, text.height);
break;
case Axis.DType.DATE_TIME:
string date, time;
axis.print_dt(x, out date, out time);
var h = 0.0;
if (axis.date_format != "") {
var text = new Text (chart, date + (horizontal ? "_" : ""), axis.font);
max_rec_width = double.max (max_rec_width, text.width);
h = text.height;
}
if (axis.time_format != "") {
var text = new Text (chart, time + (horizontal ? "_" : ""), axis.font);
max_rec_width = double.max (max_rec_width, text.width);
h += text.height;
}
max_rec_height = double.max (max_rec_height, h);
break;
}
}
}
public virtual void join_axes (bool is_x, int si, ref int nskip) {
var s = chart.series[si];
Axis axis = s.axis_x;
@ -203,6 +172,217 @@ namespace CairoChart {
}
}
public virtual void draw_horizontal_axis (int si, ref int nskip) {
var s = chart.series[si];
if (!s.zoom_show) return;
if (chart.joint_x && si != chart.zoom_1st_idx) return;
// 1. Detect max record width/height by axis.nrecords equally selected points using format.
double max_rec_width, max_rec_height;
calc_rec_sizes (s.axis_x, out max_rec_width, out max_rec_height, true);
// 2. Calculate maximal available number of records, take into account the space width.
long max_nrecs = (long) (chart.plarea.width * s.place.zwidth / max_rec_width);
// 3. Calculate grid step.
Float128 step = Math.calc_round_step (s.axis_x.range.zrange / max_nrecs, s.axis_x.dtype == Axis.DType.DATE_TIME);
if (step > s.axis_x.range.zrange)
step = s.axis_x.range.zrange;
// 4. Calculate x_min (s.axis_x.range.zmin / step, round, multiply on step, add step if < s.axis_x.range.zmin).
Float128 x_min = 0;
if (step >= 1) {
int64 x_min_nsteps = (int64) (s.axis_x.range.zmin / step);
x_min = x_min_nsteps * step;
} else {
int64 round_axis_x_min = (int64)s.axis_x.range.zmin;
int64 x_min_nsteps = (int64) ((s.axis_x.range.zmin - round_axis_x_min) / step);
x_min = round_axis_x_min + x_min_nsteps * step;
}
if (x_min < s.axis_x.range.zmin) x_min += step;
// 4.2. Cursor values for joint X axis
if (chart.joint_x && chart.cursors.cursor_style.orientation == Cursors.Orientation.VERTICAL && chart.cursors.has_crossings) {
var tmp = max_rec_height + s.axis_x.font.vspacing;
switch (s.axis_x.position) {
case Axis.Position.LOW: chart.evarea.y1 -= tmp; break;
case Axis.Position.HIGH: chart.evarea.y0 += tmp; break;
}
}
// 4.5. Draw Axis title
if (s.axis_x.title.text != "") {
var scr_x = chart.plarea.x0 + chart.plarea.width * (s.place.zx0 + s.place.zx1) / 2;
var scr_y = 0.0;
switch (s.axis_x.position) {
case Axis.Position.LOW: scr_y = chart.evarea.y1 - s.axis_x.font.vspacing; break;
case Axis.Position.HIGH: scr_y = chart.evarea.y0 + s.axis_x.font.vspacing + axis_x.title.height; break;
}
chart.ctx.move_to(scr_x - axis_x.title.width / 2, scr_y);
chart.color = s.axis_x.color;
if (chart.joint_x) chart.color = chart.joint_color;
s.axis_x.title.show();
}
s.draw_horizontal_records (step, max_rec_height, x_min);
chart.ctx.stroke ();
var tmp1 = 0.0, tmp2 = 0.0, tmp3 = 0.0, tmp4 = 0.0;
s.join_relative_x_axes (si, false, ref tmp1, ref tmp2, ref tmp3, ref tmp4, ref nskip);
if (nskip != 0) {--nskip; return;}
var tmp = max_rec_height + s.axis_x.font.vspacing + (s.axis_x.title.text == "" ? 0 : axis_x.title.height + s.axis_x.font.vspacing);
switch (s.axis_x.position) {
case Axis.Position.LOW: chart.evarea.y1 -= tmp; break;
case Axis.Position.HIGH: chart.evarea.y0 += tmp; break;
}
}
public virtual void draw_vertical_axis (int si, ref int nskip) {
var s = chart.series[si];
if (!s.zoom_show) return;
if (chart.joint_y && si != chart.zoom_1st_idx) return;
// 1. Detect max record width/height by axis.nrecords equally selected points using format.
double max_rec_width, max_rec_height;
calc_rec_sizes (s.axis_y, out max_rec_width, out max_rec_height, false);
// 2. Calculate maximal available number of records, take into account the space width.
long max_nrecs = (long) (chart.plarea.height * s.place.zheight / max_rec_height);
// 3. Calculate grid step.
Float128 step = Math.calc_round_step (s.axis_y.range.zrange / max_nrecs);
if (step > s.axis_y.range.zrange)
step = s.axis_y.range.zrange;
// 4. Calculate y_min (s.axis_y.range.zmin / step, round, multiply on step, add step if < s.axis_y.range.zmin).
Float128 y_min = 0;
if (step >= 1) {
int64 y_min_nsteps = (int64) (s.axis_y.range.zmin / step);
y_min = y_min_nsteps * step;
} else {
int64 round_axis_y_min = (int64)s.axis_y.range.zmin;
int64 y_min_nsteps = (int64) ((s.axis_y.range.zmin - round_axis_y_min) / step);
y_min = round_axis_y_min + y_min_nsteps * step;
}
if (y_min < s.axis_y.range.zmin) y_min += step;
// 4.2. Cursor values for joint Y axis
if (chart.joint_y && chart.cursors.cursor_style.orientation == Cursors.Orientation.HORIZONTAL && chart.cursors.has_crossings) {
var tmp = max_rec_width + s.axis_y.font.hspacing;
switch (s.axis_y.position) {
case Axis.Position.LOW: chart.evarea.x0 += tmp; break;
case Axis.Position.HIGH: chart.evarea.x1 -= tmp; break;
}
}
// 4.5. Draw Axis title
if (s.axis_y.title.text != "") {
var scr_y = chart.plarea.y0 + chart.plarea.height * (1 - (s.place.zy0 + s.place.zy1) / 2);
switch (s.axis_y.position) {
case Axis.Position.LOW:
var scr_x = chart.evarea.x0 + s.axis_y.font.hspacing + axis_y.title.width;
chart.ctx.move_to(scr_x, scr_y + axis_y.title.height / 2);
break;
case Axis.Position.HIGH:
var scr_x = chart.evarea.x1 - s.axis_y.font.hspacing;
chart.ctx.move_to(scr_x, scr_y + axis_y.title.height / 2);
break;
}
chart.color = s.axis_y.color;
if (chart.joint_y) chart.color = chart.joint_color;
s.axis_y.title.show();
}
s.draw_vertical_records (step, max_rec_width, y_min);
chart.ctx.stroke ();
var tmp1 = 0.0, tmp2 = 0.0, tmp3 = 0.0, tmp4 = 0.0;
s.join_relative_y_axes (si, false, ref tmp1, ref tmp2, ref tmp3, ref tmp4, ref nskip);
if (nskip != 0) {--nskip; return;}
var tmp = max_rec_width + s.axis_y.font.hspacing + (s.axis_y.title.text == "" ? 0 : axis_y.title.width + s.axis_y.font.hspacing);
switch (s.axis_y.position) {
case Axis.Position.LOW: chart.evarea.x0 += tmp; break;
case Axis.Position.HIGH: chart.evarea.x1 -= tmp; break;
}
}
public virtual double compact_rec_x_pos (Float128 x, Text text) {
return get_scr_x(x) - text.width / 2
- text.width * (x - (axis_x.range.zmin + axis_x.range.zmax) / 2) / axis_x.range.zrange;
}
public virtual double compact_rec_y_pos (Float128 y, Text text) {
return get_scr_y(y) + text.height / 2
+ text.height * (y - (axis_y.range.zmin + axis_y.range.zmax) / 2) / axis_y.range.zrange;
}
public virtual double get_scr_x (Float128 x) {
return chart.plarea.x0 + chart.plarea.width * (place.zx0 + (x - axis_x.range.zmin) / axis_x.range.zrange * place.zwidth);
}
public virtual double get_scr_y (Float128 y) {
return chart.plarea.y0 + chart.plarea.height * (1 - (place.zy0 + (y - axis_y.range.zmin) / axis_y.range.zrange * place.zheight));
}
public virtual Point get_scr_point (Point128 p) {
return Point (get_scr_x(p.x), get_scr_y(p.y));
}
public virtual Float128 get_real_x (double scr_x) {
return axis_x.range.zmin + ((scr_x - chart.plarea.x0) / chart.plarea.width - place.zx0) * axis_x.range.zrange / place.zwidth;
}
public virtual Float128 get_real_y (double scr_y) {
return axis_y.range.zmin + ((chart.plarea.y1 - scr_y) / chart.plarea.height - place.zy0) * axis_y.range.zrange / place.zheight;
}
public virtual Point128 get_real_point (Point p) {
return Point128 (get_real_x(p.x), get_real_y(p.y));
}
public virtual void zoom_out () {
zoom_show = true;
axis_x.zoom_out();
axis_y.zoom_out();
place.zoom_out();
}
protected virtual void calc_rec_sizes (Axis axis, out double max_rec_width, out double max_rec_height, bool horizontal = true) {
max_rec_width = max_rec_height = 0;
for (var i = 0; i < axis.nrecords; ++i) {
Float128 x = (int64)(axis.range.zmin + axis.range.zrange / axis.nrecords * i) + 1/3.0;
switch (axis.dtype) {
case Axis.DType.NUMBERS:
var text = new Text (chart, axis.format.printf((LongDouble)x) + (horizontal ? "_" : ""), axis.font);
max_rec_width = double.max (max_rec_width, text.width);
max_rec_height = double.max (max_rec_height, text.height);
break;
case Axis.DType.DATE_TIME:
string date, time;
axis.print_dt(x, out date, out time);
var h = 0.0;
if (axis.date_format != "") {
var text = new Text (chart, date + (horizontal ? "_" : ""), axis.font);
max_rec_width = double.max (max_rec_width, text.width);
h = text.height;
}
if (axis.time_format != "") {
var text = new Text (chart, time + (horizontal ? "_" : ""), axis.font);
max_rec_width = double.max (max_rec_width, text.width);
h += text.height;
}
max_rec_height = double.max (max_rec_height, h);
break;
}
}
}
protected virtual void join_relative_x_axes (int si,
bool calc_max_values,
ref double max_rec_width,
@ -353,74 +533,6 @@ namespace CairoChart {
}
}
public virtual void draw_horizontal_axis (int si, ref int nskip) {
var s = chart.series[si];
if (!s.zoom_show) return;
if (chart.joint_x && si != chart.zoom_1st_idx) return;
// 1. Detect max record width/height by axis.nrecords equally selected points using format.
double max_rec_width, max_rec_height;
calc_rec_sizes (s.axis_x, out max_rec_width, out max_rec_height, true);
// 2. Calculate maximal available number of records, take into account the space width.
long max_nrecs = (long) (chart.plarea.width * s.place.zwidth / max_rec_width);
// 3. Calculate grid step.
Float128 step = Math.calc_round_step (s.axis_x.range.zrange / max_nrecs, s.axis_x.dtype == Axis.DType.DATE_TIME);
if (step > s.axis_x.range.zrange)
step = s.axis_x.range.zrange;
// 4. Calculate x_min (s.axis_x.range.zmin / step, round, multiply on step, add step if < s.axis_x.range.zmin).
Float128 x_min = 0;
if (step >= 1) {
int64 x_min_nsteps = (int64) (s.axis_x.range.zmin / step);
x_min = x_min_nsteps * step;
} else {
int64 round_axis_x_min = (int64)s.axis_x.range.zmin;
int64 x_min_nsteps = (int64) ((s.axis_x.range.zmin - round_axis_x_min) / step);
x_min = round_axis_x_min + x_min_nsteps * step;
}
if (x_min < s.axis_x.range.zmin) x_min += step;
// 4.2. Cursor values for joint X axis
if (chart.joint_x && chart.cursors.cursor_style.orientation == Cursors.Orientation.VERTICAL && chart.cursors.has_crossings) {
var tmp = max_rec_height + s.axis_x.font.vspacing;
switch (s.axis_x.position) {
case Axis.Position.LOW: chart.evarea.y1 -= tmp; break;
case Axis.Position.HIGH: chart.evarea.y0 += tmp; break;
}
}
// 4.5. Draw Axis title
if (s.axis_x.title.text != "") {
var scr_x = chart.plarea.x0 + chart.plarea.width * (s.place.zx0 + s.place.zx1) / 2;
var scr_y = 0.0;
switch (s.axis_x.position) {
case Axis.Position.LOW: scr_y = chart.evarea.y1 - s.axis_x.font.vspacing; break;
case Axis.Position.HIGH: scr_y = chart.evarea.y0 + s.axis_x.font.vspacing + axis_x.title.height; break;
}
chart.ctx.move_to(scr_x - axis_x.title.width / 2, scr_y);
chart.color = s.axis_x.color;
if (chart.joint_x) chart.color = chart.joint_color;
s.axis_x.title.show();
}
s.draw_horizontal_records (step, max_rec_height, x_min);
chart.ctx.stroke ();
var tmp1 = 0.0, tmp2 = 0.0, tmp3 = 0.0, tmp4 = 0.0;
s.join_relative_x_axes (si, false, ref tmp1, ref tmp2, ref tmp3, ref tmp4, ref nskip);
if (nskip != 0) {--nskip; return;}
var tmp = max_rec_height + s.axis_x.font.vspacing + (s.axis_x.title.text == "" ? 0 : axis_x.title.height + s.axis_x.font.vspacing);
switch (s.axis_x.position) {
case Axis.Position.LOW: chart.evarea.y1 -= tmp; break;
case Axis.Position.HIGH: chart.evarea.y0 += tmp; break;
}
}
protected virtual void draw_vertical_records (Float128 step, double max_rec_width, Float128 y_min) {
// 5. Draw records, update cur_{x,y}_{min,max}.
var ctx = chart.ctx;
@ -469,117 +581,5 @@ namespace CairoChart {
}
}
}
public virtual void draw_vertical_axis (int si, ref int nskip) {
var s = chart.series[si];
if (!s.zoom_show) return;
if (chart.joint_y && si != chart.zoom_1st_idx) return;
// 1. Detect max record width/height by axis.nrecords equally selected points using format.
double max_rec_width, max_rec_height;
calc_rec_sizes (s.axis_y, out max_rec_width, out max_rec_height, false);
// 2. Calculate maximal available number of records, take into account the space width.
long max_nrecs = (long) (chart.plarea.height * s.place.zheight / max_rec_height);
// 3. Calculate grid step.
Float128 step = Math.calc_round_step (s.axis_y.range.zrange / max_nrecs);
if (step > s.axis_y.range.zrange)
step = s.axis_y.range.zrange;
// 4. Calculate y_min (s.axis_y.range.zmin / step, round, multiply on step, add step if < s.axis_y.range.zmin).
Float128 y_min = 0;
if (step >= 1) {
int64 y_min_nsteps = (int64) (s.axis_y.range.zmin / step);
y_min = y_min_nsteps * step;
} else {
int64 round_axis_y_min = (int64)s.axis_y.range.zmin;
int64 y_min_nsteps = (int64) ((s.axis_y.range.zmin - round_axis_y_min) / step);
y_min = round_axis_y_min + y_min_nsteps * step;
}
if (y_min < s.axis_y.range.zmin) y_min += step;
// 4.2. Cursor values for joint Y axis
if (chart.joint_y && chart.cursors.cursor_style.orientation == Cursors.Orientation.HORIZONTAL && chart.cursors.has_crossings) {
var tmp = max_rec_width + s.axis_y.font.hspacing;
switch (s.axis_y.position) {
case Axis.Position.LOW: chart.evarea.x0 += tmp; break;
case Axis.Position.HIGH: chart.evarea.x1 -= tmp; break;
}
}
// 4.5. Draw Axis title
if (s.axis_y.title.text != "") {
var scr_y = chart.plarea.y0 + chart.plarea.height * (1 - (s.place.zy0 + s.place.zy1) / 2);
switch (s.axis_y.position) {
case Axis.Position.LOW:
var scr_x = chart.evarea.x0 + s.axis_y.font.hspacing + axis_y.title.width;
chart.ctx.move_to(scr_x, scr_y + axis_y.title.height / 2);
break;
case Axis.Position.HIGH:
var scr_x = chart.evarea.x1 - s.axis_y.font.hspacing;
chart.ctx.move_to(scr_x, scr_y + axis_y.title.height / 2);
break;
}
chart.color = s.axis_y.color;
if (chart.joint_y) chart.color = chart.joint_color;
s.axis_y.title.show();
}
s.draw_vertical_records (step, max_rec_width, y_min);
chart.ctx.stroke ();
var tmp1 = 0.0, tmp2 = 0.0, tmp3 = 0.0, tmp4 = 0.0;
s.join_relative_y_axes (si, false, ref tmp1, ref tmp2, ref tmp3, ref tmp4, ref nskip);
if (nskip != 0) {--nskip; return;}
var tmp = max_rec_width + s.axis_y.font.hspacing + (s.axis_y.title.text == "" ? 0 : axis_y.title.width + s.axis_y.font.hspacing);
switch (s.axis_y.position) {
case Axis.Position.LOW: chart.evarea.x0 += tmp; break;
case Axis.Position.HIGH: chart.evarea.x1 -= tmp; break;
}
}
public virtual double compact_rec_x_pos (Float128 x, Text text) {
return get_scr_x(x) - text.width / 2
- text.width * (x - (axis_x.range.zmin + axis_x.range.zmax) / 2) / axis_x.range.zrange;
}
public virtual double compact_rec_y_pos (Float128 y, Text text) {
return get_scr_y(y) + text.height / 2
+ text.height * (y - (axis_y.range.zmin + axis_y.range.zmax) / 2) / axis_y.range.zrange;
}
public virtual double get_scr_x (Float128 x) {
return chart.plarea.x0 + chart.plarea.width * (place.zx0 + (x - axis_x.range.zmin) / axis_x.range.zrange * place.zwidth);
}
public virtual double get_scr_y (Float128 y) {
return chart.plarea.y0 + chart.plarea.height * (1 - (place.zy0 + (y - axis_y.range.zmin) / axis_y.range.zrange * place.zheight));
}
public virtual Point get_scr_point (Point128 p) {
return Point (get_scr_x(p.x), get_scr_y(p.y));
}
public virtual Float128 get_real_x (double scr_x) {
return axis_x.range.zmin + ((scr_x - chart.plarea.x0) / chart.plarea.width - place.zx0) * axis_x.range.zrange / place.zwidth;
}
public virtual Float128 get_real_y (double scr_y) {
return axis_y.range.zmin + ((chart.plarea.y1 - scr_y) / chart.plarea.height - place.zy0) * axis_y.range.zrange / place.zheight;
}
public virtual Point128 get_real_point (Point p) {
return Point128 (get_real_x(p.x), get_real_y(p.y));
}
public virtual void zoom_out () {
zoom_show = true;
axis_x.zoom_out();
axis_y.zoom_out();
place.zoom_out();
}
}
}