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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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34
src/read-linear-window.c
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@@ -34,7 +34,7 @@
*** Forward declarations
***/
static void redraw_curve(void);
static void redraw_curve(cairo_t *cr);
static void update_geometry(void);
/***
@@ -230,10 +230,10 @@ void GuiMarkExistingSectors(void)
* Redraw the whole curve
*/
static void redraw_curve(void)
static void redraw_curve(cairo_t *cr)
{
GuiRedrawAxes(Closure->readLinearCurve);
GuiRedrawCurve(Closure->readLinearCurve, 1000);
GuiRedrawAxes(cr, Closure->readLinearCurve);
GuiRedrawCurve(cr, Closure->readLinearCurve, 1000);
}
/* Calculate the geometry of the curve */
@@ -251,9 +251,8 @@ static void update_geometry(void)
}
static void redraw_spiral_labels(void)
{ cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(Closure->readLinearSpiral->widget));
int x,w,h;
static void redraw_spiral_labels(cairo_t *cr)
{ int x,w,h;
int pos = 1;
/* Draw and label the spiral */
@@ -265,36 +264,37 @@ static void redraw_spiral_labels(void)
pango_cairo_show_layout(cr, Closure->readLinearCurve->layout);
if(Closure->additionalSpiralColor == 0)
GuiDrawSpiralLabel(Closure->readLinearSpiral, Closure->readLinearCurve->layout,
GuiDrawSpiralLabel(cr, Closure->readLinearSpiral, Closure->readLinearCurve->layout,
_("Not touched this time"), Closure->curveColor, x, -1);
if(Closure->additionalSpiralColor == 3)
GuiDrawSpiralLabel(Closure->readLinearSpiral, Closure->readLinearCurve->layout,
GuiDrawSpiralLabel(cr, Closure->readLinearSpiral, Closure->readLinearCurve->layout,
_("Already present"), Closure->darkSector, x, -1);
GuiDrawSpiralLabel(Closure->readLinearSpiral, Closure->readLinearCurve->layout,
GuiDrawSpiralLabel(cr, Closure->readLinearSpiral, Closure->readLinearCurve->layout,
_("Successfully read"), Closure->greenSector, x, pos++);
if(Closure->crcBuf && Closure->crcBuf->crcCached)
GuiDrawSpiralLabel(Closure->readLinearSpiral, Closure->readLinearCurve->layout,
GuiDrawSpiralLabel(cr, Closure->readLinearSpiral, Closure->readLinearCurve->layout,
_("Sectors with CRC errors"), Closure->yellowSector, x, pos++);
GuiDrawSpiralLabel(Closure->readLinearSpiral, Closure->readLinearCurve->layout,
GuiDrawSpiralLabel(cr, Closure->readLinearSpiral, Closure->readLinearCurve->layout,
_("Unreadable / skipped"), Closure->redSector, x, pos++);
GuiDrawSpiral(Closure->readLinearSpiral);
GuiDrawSpiral(cr, Closure->readLinearSpiral);
}
static gboolean expose_curve_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
{ cairo_t *cr = gdk_cairo_create(GDK_DRAWABLE(gtk_widget_get_window(widget)));
update_geometry();
redraw_curve();
redraw_curve(cr);
return TRUE;
}
static gboolean expose_spiral_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{ GtkAllocation a = {0};
{ cairo_t *cr = gdk_cairo_create(GDK_DRAWABLE(gtk_widget_get_window(widget)));
GtkAllocation a = {0};
gtk_widget_get_allocation(widget, &a);
GuiSetSpiralWidget(Closure->readLinearSpiral, widget);
@@ -309,7 +309,7 @@ static gboolean expose_spiral_cb(GtkWidget *widget, GdkEventExpose *event, gpoin
Closure->readLinearSpiral->my = a.height/2 - h;
}
redraw_spiral_labels();
redraw_spiral_labels(cr);
return TRUE;
}