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gtk3-demo: Add tool information to "Event axes" demo

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Print tool type and serial, if found.
This commit is contained in:
Carlos Garnacho
2016-04-05 14:33:29 +02:00
parent fbc5a8c772
commit f71c85b163
1 changed files with 44 additions and 0 deletions
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44
demos/gtk-demo/event_axes.c
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@@ -24,6 +24,7 @@
typedef struct {
GdkDevice *last_source;
GdkDeviceTool *last_tool;
gdouble *axes;
GdkRGBA color;
gdouble x;
@@ -99,12 +100,14 @@ update_axes_from_event (GdkEvent *event,
{
GdkDevice *device, *source_device;
GdkEventSequence *sequence;
GdkDeviceTool *tool;
gdouble x, y;
AxesInfo *info;
device = gdk_event_get_device (event);
source_device = gdk_event_get_source_device (event);
sequence = gdk_event_get_event_sequence (event);
tool = gdk_event_get_device_tool (event);
if (event->type == GDK_TOUCH_END ||
event->type == GDK_TOUCH_CANCEL)
@@ -142,6 +145,9 @@ update_axes_from_event (GdkEvent *event,
if (info->last_source != source_device)
info->last_source = source_device;
if (info->last_tool != tool)
info->last_tool = tool;
if (event->type == GDK_TOUCH_BEGIN ||
event->type == GDK_TOUCH_UPDATE ||
event->type == GDK_MOTION_NOTIFY ||
@@ -292,6 +298,31 @@ draw_axes_info (cairo_t *cr,
cairo_restore (cr);
}
static const gchar *
tool_type_to_string (GdkDeviceToolType tool_type)
{
switch (tool_type)
{
case GDK_DEVICE_TOOL_TYPE_PEN:
return "Pen";
case GDK_DEVICE_TOOL_TYPE_ERASER:
return "Eraser";
case GDK_DEVICE_TOOL_TYPE_BRUSH:
return "Brush";
case GDK_DEVICE_TOOL_TYPE_PENCIL:
return "Pencil";
case GDK_DEVICE_TOOL_TYPE_AIRBRUSH:
return "Airbrush";
case GDK_DEVICE_TOOL_TYPE_MOUSE:
return "Mouse";
case GDK_DEVICE_TOOL_TYPE_LENS:
return "Lens cursor";
case GDK_DEVICE_TOOL_TYPE_UNKNOWN:
default:
return "Unknown";
}
}
static void
draw_device_info (GtkWidget *widget,
cairo_t *cr,
@@ -313,6 +344,19 @@ draw_device_info (GtkWidget *widget,
g_string_append_printf (string, "\nSequence: %d",
GPOINTER_TO_UINT (sequence));
if (info->last_tool)
{
const gchar *tool_type;
guint64 serial;
tool_type = tool_type_to_string (gdk_device_tool_get_tool_type (info->last_tool));
serial = gdk_device_tool_get_serial (info->last_tool);
g_string_append_printf (string, "\nTool: %s", tool_type);
if (serial != 0)
g_string_append_printf (string, ", Serial: %lx", serial);
}
cairo_move_to (cr, 10, *y);
layout = gtk_widget_create_pango_layout (widget, string->str);
pango_cairo_show_layout (cr, layout);