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-rw-r--r--src/Canvas.cpp7
-rw-r--r--src/Port.cpp8
-rw-r--r--src/ganv-marshal.list2
-rw-r--r--src/ganv_test.c12
-rw-r--r--src/port.c30
5 files changed, 50 insertions, 9 deletions
diff --git a/src/Canvas.cpp b/src/Canvas.cpp
index e353945..56e64f5 100644
--- a/src/Canvas.cpp
+++ b/src/Canvas.cpp
@@ -1131,7 +1131,12 @@ GanvCanvasImpl::port_event(GdkEvent* event, GanvPort* port)
const double sens = fmaxf(1.0 - fabs(dy), value_range / range_x);
const double dvalue = (dx * value_range) * sens;
- const double value = control_start_value + dvalue;
+ double value = control_start_value + dvalue;
+ if (value < port->impl->control->min) {
+ value = port->impl->control->min;
+ } else if (value > port->impl->control->max) {
+ value = port->impl->control->max;
+ }
ganv_port_set_control_value(port, value);
return true;
}
diff --git a/src/Port.cpp b/src/Port.cpp
index 36c556a..902087e 100644
--- a/src/Port.cpp
+++ b/src/Port.cpp
@@ -25,6 +25,12 @@
namespace Ganv {
+static void
+on_value_changed(GanvPort* port, GVariant* value, void* portmm)
+{
+ ((Port*)portmm)->signal_value_changed.emit(Glib::VariantBase(value));
+}
+
/** Contruct a Port on an existing module.
*/
Port::Port(Module& module,
@@ -39,6 +45,8 @@ Port::Port(Module& module,
"label", name.c_str(),
NULL)))
{
+ g_signal_connect(gobj(), "value-changed",
+ G_CALLBACK(on_value_changed), this);
}
Module*
diff --git a/src/ganv-marshal.list b/src/ganv-marshal.list
index ba6ef33..64e6c6b 100644
--- a/src/ganv-marshal.list
+++ b/src/ganv-marshal.list
@@ -1,4 +1,4 @@
-VOID:OBJECT,INT,INT,INT,INT
BOOLEAN:BOXED
VOID:DOUBLE,DOUBLE
+VOID:OBJECT,INT,INT,INT,INT
VOID:OBJECT,OBJECT
diff --git a/src/ganv_test.c b/src/ganv_test.c
index fce3ede..971b3e1 100644
--- a/src/ganv_test.c
+++ b/src/ganv_test.c
@@ -18,7 +18,7 @@
#include "ganv/ganv.h"
static void
-on_window_destroy(GtkWidget* widget, gpointer data)
+on_window_destroy(GtkWidget* widget, void* data)
{
gtk_main_quit();
}
@@ -35,6 +35,14 @@ on_disconnect(GanvCanvas* canvas, GanvNode* tail, GanvNode* head, void* data)
ganv_canvas_remove_edge_between(canvas, tail, head);
}
+static void
+on_value_changed(GanvPort* port, GVariant* value, void* data)
+{
+ char* str = g_variant_print(value, TRUE);
+ fprintf(stderr, "Value changed: port %p = %s\n", (void*)port, str);
+ g_free(str);
+}
+
int
main(int argc, char** argv)
{
@@ -63,6 +71,8 @@ main(int argc, char** argv)
"label", "Control",
NULL);
ganv_port_show_control(cport);
+ g_signal_connect(cport, "value-changed",
+ G_CALLBACK(on_value_changed), NULL);
//GtkWidget* entry = gtk_entry_new();
//ganv_module_embed(module, entry);
diff --git a/src/port.c b/src/port.c
index e8e6754..58e7629 100644
--- a/src/port.c
+++ b/src/port.c
@@ -36,6 +36,13 @@ enum {
PROP_IS_INPUT
};
+enum {
+ PORT_VALUE_CHANGED,
+ PORT_LAST_SIGNAL
+};
+
+static guint port_signals[PORT_LAST_SIGNAL];
+
static void
ganv_port_init(GanvPort* port)
{
@@ -252,6 +259,16 @@ ganv_port_class_init(GanvPortClass* class)
0,
G_PARAM_READWRITE));
+ port_signals[PORT_VALUE_CHANGED]
+ = g_signal_new("value-changed",
+ G_TYPE_FROM_CLASS(class),
+ G_SIGNAL_RUN_LAST,
+ 0,
+ NULL, NULL,
+ NULL,
+ G_TYPE_NONE, 1,
+ G_TYPE_VARIANT);
+
object_class->destroy = ganv_port_destroy;
item_class->event = event;
@@ -270,8 +287,7 @@ ganv_port_new(GanvModule* module,
gboolean is_input,
const char* first_prop_name, ...)
{
- GanvPort* port = GANV_PORT(
- g_object_new(ganv_port_get_type(), NULL));
+ GanvPort* port = GANV_PORT(g_object_new(ganv_port_get_type(), NULL));
port->impl->is_input = is_input;
@@ -397,10 +413,12 @@ ganv_port_set_control_value(GanvPort* port,
}
ganv_box_set_width(impl->control->rect, MAX(0.0, w - 1.0));
-#if 0
- if (signal && _control->value == value)
- signal = false;
-#endif
+
+ if (impl->control->value != value) {
+ GVariant* gvar = g_variant_new_double(value);
+ g_signal_emit(port, port_signals[PORT_VALUE_CHANGED], 0, gvar, NULL);
+ g_variant_unref(gvar);
+ }
impl->control->value = value;