[SCM] calf/master: + Line graph: provide a way to update the graphs conditionally

[js at users.alioth.debian.org]

The following commit has been merged in the master branch:
commit b11cfb535db142c32715e9ee723d0e5cbe2f71ed
Author: Krzysztof Foltman <wdev at foltman.com>
Date:   Sun Jan 25 09:58:57 2009 +0000

    + Line graph: provide a way to update the graphs conditionally

diff --git a/src/calf/custom_ctl.h b/src/calf/custom_ctl.h
index 307e526..39ade93 100644
--- a/src/calf/custom_ctl.h
+++ b/src/calf/custom_ctl.h
@@ -55,6 +55,8 @@ extern GType calf_line_graph_get_type();
 
 extern void calf_line_graph_set_square(CalfLineGraph *graph, bool is_square);
 
+extern void calf_line_graph_update_if(CalfLineGraph *graph);
+
 #define CALF_TYPE_VUMETER          (calf_vumeter_get_type())
 #define CALF_VUMETER(obj)          (G_TYPE_CHECK_INSTANCE_CAST ((obj), CALF_TYPE_VUMETER, CalfVUMeter))
 #define CALF_IS_VUMETER(obj)       (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CALF_TYPE_VUMETER))
diff --git a/src/calf/modules.h b/src/calf/modules.h
index eaa347b..7c16ddc 100644
--- a/src/calf/modules.h
+++ b/src/calf/modules.h
@@ -22,6 +22,7 @@
 #define __CALF_MODULES_H
 
 #include <assert.h>
+#include <limits.h>
 #include "biquad.h"
 #include "inertia.h"
 #include "audio_fx.h"
@@ -728,10 +729,16 @@ public:
             old_resonance = inertia_resonance.get_last();
             old_mode = *params[par_mode];
             last_generation++;
+            subindex_graph = 0;
+            subindex_dot = INT_MAX;
+            subindex_gridline = INT_MAX;
+        }
+        else {
+            subindex_graph = 0;
+            subindex_dot = subindex_gridline = generation ? INT_MAX : 0;
         }
-        frequency_response_line_graph::get_changed_offsets(generation, subindex_graph, subindex_dot, subindex_gridline);
         if (generation == last_generation)
-            subindex_graph = 2;
+            subindex_graph = INT_MAX;
         return last_generation;
     }
 };
diff --git a/src/custom_ctl.cpp b/src/custom_ctl.cpp
index 6658ad3..c2a4c88 100644
--- a/src/custom_ctl.cpp
+++ b/src/custom_ctl.cpp
@@ -258,6 +258,20 @@ void calf_line_graph_set_square(CalfLineGraph *graph, bool is_square)
     graph->is_square = is_square;
 }
 
+void calf_line_graph_update_if(CalfLineGraph *graph)
+{
+    g_assert(CALF_IS_LINE_GRAPH(graph));
+    int generation = 0;
+    if (graph->source)
+    {
+        int subgraph, dot, gridline;
+        generation = graph->source->get_changed_offsets(graph->last_generation, subgraph, dot, gridline);
+        if (subgraph == INT_MAX && dot == INT_MAX && gridline == INT_MAX)
+            return;
+        gtk_widget_queue_draw(GTK_WIDGET(graph));
+    }
+}
+
 static void
 calf_line_graph_size_request (GtkWidget *widget,
                            GtkRequisition *requisition)
diff --git a/src/gui.cpp b/src/gui.cpp
index 7f6eaf4..2e6c1b2 100644
--- a/src/gui.cpp
+++ b/src/gui.cpp
@@ -525,7 +525,7 @@ void line_graph_param_control::set()
         int ws = gdk_window_get_state(widget->window);
         if (ws & (GDK_WINDOW_STATE_WITHDRAWN | GDK_WINDOW_STATE_ICONIFIED))
             return;
-        gtk_widget_queue_draw(widget);
+        calf_line_graph_update_if(CALF_LINE_GRAPH(widget));
     }
 }
 

-- 
calf audio plugins packaging