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Cairo-Chart
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Kolan Sh 2018-01-19 14:22:22 +03:00
parent 54d805fc36
commit e2c43bad45
1 changed files with 6 additions and 6 deletions
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12
src/Chart.vala
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@ -267,16 +267,16 @@ namespace CairoChart {
var d = delta;
d.x /= -plarea.width;
d.y /= -plarea.height;
var rzxmin = zoom.x, rzxmax = zoom.x + zoom.width, rzymin = zoom.y, rzymax = zoom.y + zoom.height;
var x0 = zoom.x, x1 = zoom.x + zoom.width, y0 = zoom.y, y1 = zoom.y + zoom.height;
zoom_out();
d.x *= plarea.width;
d.y *= plarea.height;
var xmin = plarea.x + plarea.width * rzxmin;
var xmax = plarea.x + plarea.width * rzxmax;
var ymin = plarea.y + plarea.height * rzymin;
var ymax = plarea.y + plarea.height * rzymax;
var xmin = plarea.x + plarea.width * x0;
var xmax = plarea.x + plarea.width * x1;
var ymin = plarea.y + plarea.height * y0;
var ymax = plarea.y + plarea.height * y1;
d.x *= rzxmax - rzxmin; d.y *= rzymax - rzymin;
d.x *= x1 - x0; d.y *= y1 - y0;
if (xmin + d.x < plarea.x) d.x = plarea.x - xmin;
if (xmax + d.x > plarea.x + plarea.width) d.x = plarea.x + plarea.width - xmax;