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libsysprof-gtk: close path when doing fills

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This commit is contained in:
Christian Hergert
2023-06-27 13:00:45 -07:00
parent 26346ec790
commit f803b5ea3d
1 changed files with 18 additions and 25 deletions
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43
src/libsysprof-gtk/sysprof-line-layer.c
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@ -69,6 +69,8 @@ sysprof_line_layer_snapshot (GtkWidget *widget,
const float *x_values;
const float *y_values;
cairo_t *cr;
float first_x;
float first_y;
float last_x;
float last_y;
guint n_values;
@ -88,32 +90,22 @@ sysprof_line_layer_snapshot (GtkWidget *widget,
cr = gtk_snapshot_append_cairo (snapshot, &GRAPHENE_RECT_INIT (0, 0, width, height));
cairo_set_line_width (cr, 1./width);
cairo_set_line_width (cr, 1);
if (!self->flip_y)
cairo_set_matrix (cr, &(cairo_matrix_t) {1, 0, 0, -1, 0, height});
cairo_scale (cr, width, height);
first_x = last_x = floor (x_values[0] * width);
first_y = last_y = floor (y_values[0] * height);
last_x = x_values[0];
last_y = y_values[0];
if (self->fill)
{
cairo_move_to (cr, last_x, 0);
cairo_line_to (cr, last_x, last_y);
}
else
{
cairo_move_to (cr, last_x, last_y);
}
cairo_move_to (cr, first_x, first_y);
if (self->spline)
{
for (guint i = 1; i < n_values; i++)
{
float x = x_values[i];
float y = y_values[i];
float x = floor (x_values[i] * width);
float y = floor (y_values[i] * height);
cairo_curve_to (cr,
last_x + ((x - last_x)/2),
@ -131,8 +123,8 @@ sysprof_line_layer_snapshot (GtkWidget *widget,
{
for (guint i = 1; i < n_values; i++)
{
float x = x_values[i];
float y = y_values[i];
float x = floor (x_values[i] * width);
float y = floor (y_values[i] * height);
cairo_line_to (cr, x, y);
@ -141,6 +133,11 @@ sysprof_line_layer_snapshot (GtkWidget *widget,
}
}
if (self->dashed)
cairo_set_dash (cr, (double[]){2}, 1, 0);
gdk_cairo_set_source_rgba (cr, &self->color);
cairo_stroke_preserve (cr);
if (self->fill)
{
GdkRGBA fill_color = self->color;
@ -149,15 +146,11 @@ sysprof_line_layer_snapshot (GtkWidget *widget,
gdk_cairo_set_source_rgba (cr, &fill_color);
cairo_line_to (cr, last_x, 0);
cairo_fill_preserve (cr);
cairo_line_to (cr, first_x, 0);
cairo_line_to (cr, first_x, first_y);
cairo_fill (cr);
}
if (self->dashed)
cairo_set_dash (cr, (double[]){(1./height*2)}, 1, 0);
gdk_cairo_set_source_rgba (cr, &self->color);
cairo_stroke (cr);
cairo_destroy (cr);
}