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Create cairo context in expose callback

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This commit is contained in:
Paul Dicker
2025-04-03 21:27:17 +02:00
committed by Stéphane Lesimple
parent 6dc80bb542
commit 5da5fa54dc
12 changed files with 85 additions and 86 deletions
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12
src/spiral.c
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@@ -110,15 +110,14 @@ void GuiFillSpiral(Spiral *spiral, GdkColor *color)
* Draw the whole spiral
*/
void GuiDrawSpiral(Spiral *spiral)
{ cairo_t *cr;
double a;
void GuiDrawSpiral(cairo_t *cr, Spiral *spiral)
{ double a;
double xi0,yi0,xo0,yo0;
double scale_i,scale_o;
int i;
if(!spiral->widget) return;
cr = gdk_cairo_create(gtk_widget_get_window(spiral->widget));
cairo_set_line_width(cr, 1.0);
scale_i = spiral->startRadius;
@@ -178,10 +177,9 @@ void GuiSetSpiralSegmentColor(Spiral *spiral, GdkColor *color, GdkColor *outline
* Draw a label above or below the spiral
*/
void GuiDrawSpiralLabel(Spiral *spiral, PangoLayout *layout,
void GuiDrawSpiralLabel(cairo_t *cr, Spiral *spiral, PangoLayout *layout,
char *text, GdkColor *color, int x, int line)
{ cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(spiral->widget));
int w,h,y;
{ int w,h,y;
GuiSetText(layout, text, &w, &h);
if(line > 0) y = spiral->my + spiral->diameter / 2 + 20 + (line-1) * (10 + h);