From 18f0fe2a37a130c6eff70868d574ee476f2b84cc Mon Sep 17 00:00:00 2001
From: gouldtj <gouldtj@users.sourceforge.net>
Date: Sat, 1 Sep 2007 04:36:03 +0000
Subject: [PATCH]  r16442@tres:  ted | 2007-08-30 21:51:42 -0700  One
 preference dialog per effect.  Nothing crazy here.  Also setting the  timer
 to be ref counted in lock/unlock mode.  This way the whole thing  stays
 locked while the dialog is shown.

---
 src/extension/effect.cpp     | 22 ++++++++++++++++++++--
 src/extension/effect.h       |  5 +++++
 src/extension/prefdialog.cpp |  7 +++++++
 src/extension/timer.cpp      |  9 ++++-----
 src/extension/timer.h        |  6 +++---
 5 files changed, 39 insertions(+), 10 deletions(-)

diff --git a/src/extension/effect.cpp b/src/extension/effect.cpp
index a20f1c6e9..7ac4825a3 100644
--- a/src/extension/effect.cpp
+++ b/src/extension/effect.cpp
@@ -35,7 +35,8 @@ Effect::Effect (Inkscape::XML::Node * in_repr, Implementation::Implementation *
       _name_noprefs(Glib::ustring(get_name()) + _(" (No preferences)")),
       _verb(get_id(), get_name(), NULL, NULL, this, true),
       _verb_nopref(_id_noprefs.c_str(), _name_noprefs.c_str(), NULL, NULL, this, false),
-      _menu_node(NULL), _workingDialog(true)
+      _menu_node(NULL), _workingDialog(true),
+      _prefDialog(NULL)
 {
     Inkscape::XML::Node * local_effects_menu = NULL;
 
@@ -206,6 +207,11 @@ Effect::check (void)
 bool
 Effect::prefs (Inkscape::UI::View::View * doc)
 {
+    if (_prefDialog != NULL) {
+        _prefDialog->raise();
+        return true;
+    }
+
     if (!loaded())
         set_state(Extension::STATE_LOADED);
     if (!loaded()) return false;
@@ -237,7 +243,7 @@ Effect::prefs (Inkscape::UI::View::View * doc)
 void
 Effect::effect (Inkscape::UI::View::View * doc)
 {
-    printf("Execute effect\n");
+    //printf("Execute effect\n");
     if (!loaded())
         set_state(Extension::STATE_LOADED);
     if (!loaded()) return;
@@ -300,6 +306,18 @@ Effect::get_info_widget(void)
     return Extension::get_info_widget();
 }
 
+void
+Effect::set_pref_dialog (PrefDialog * prefdialog)
+{
+    _prefDialog = prefdialog;
+    if (_prefDialog == NULL) {
+        timer->unlock();
+    } else {
+        timer->lock();
+    }
+    return;
+}
+
 /** \brief  Create an action for a \c EffectVerb
     \param  view  Which view the action should be created for
     \return The built action.
diff --git a/src/extension/effect.h b/src/extension/effect.h
index bebdb1c4f..44d18146a 100644
--- a/src/extension/effect.h
+++ b/src/extension/effect.h
@@ -18,6 +18,7 @@
 #include <gtk/gtkdialog.h>
 #include "verbs.h"
 
+#include "prefdialog.h"
 #include "extension.h"
 
 struct SPDocument;
@@ -88,6 +89,9 @@ class Effect : public Extension {
     Inkscape::XML::Node * _menu_node;
     /** \brief  Whehter a working dialog should be shown */
     bool _workingDialog;
+
+    /** \brief  The preference dialog if it is shown */
+    PrefDialog * _prefDialog;
 public:
                  Effect  (Inkscape::XML::Node * in_repr,
                           Implementation::Implementation * in_imp);
@@ -109,6 +113,7 @@ public:
 
     bool no_doc; // if true, the effect does not process SVG document at all, so no need to save, read, and watch for errors
 
+    void        set_pref_dialog (PrefDialog * prefdialog);
 private:
     static gchar *   remove_ (gchar * instr);
 };
diff --git a/src/extension/prefdialog.cpp b/src/extension/prefdialog.cpp
index cef642d50..0174fd585 100644
--- a/src/extension/prefdialog.cpp
+++ b/src/extension/prefdialog.cpp
@@ -107,11 +107,18 @@ PrefDialog::PrefDialog (Glib::ustring name, gchar const * help, Gtk::Widget * co
     GtkWidget *dlg = GTK_WIDGET(gobj());
     sp_transientize(dlg);
 
+    if (_effect != NULL) {
+        _effect->set_pref_dialog(this);
+    }
+
     return;
 }
 
 PrefDialog::~PrefDialog ( )
 {
+    if (_effect != NULL) {
+        _effect->set_pref_dialog(NULL);
+    }
     if (_param_preview != NULL) {
         delete _param_preview;
     }
diff --git a/src/extension/timer.cpp b/src/extension/timer.cpp
index 0e7a6ad11..c7a9331a0 100644
--- a/src/extension/timer.cpp
+++ b/src/extension/timer.cpp
@@ -33,11 +33,10 @@ bool ExpirationTimer::timer_started = false;
     the first timer extension, the timer is kicked off.  This function
     also sets up teh circularly linked list of all the timers.
 */
-ExpirationTimer::ExpirationTimer (Extension * in_extension)
+ExpirationTimer::ExpirationTimer (Extension * in_extension):
+    locked(0),
+    extension(in_extension)
 {
-    locked = false;
-    extension = in_extension;
-
     /* Fix Me! */
     if (timer_list == NULL) {
         next = this;
@@ -124,7 +123,7 @@ ExpirationTimer::touch (void)
 bool
 ExpirationTimer::expired (void) const
 {
-    if (locked) return false;
+    if (locked > 0) return false;
 
     Glib::TimeVal current;
     current.assign_current_time();
diff --git a/src/extension/timer.h b/src/extension/timer.h
index b9649e899..7855ed170 100644
--- a/src/extension/timer.h
+++ b/src/extension/timer.h
@@ -31,7 +31,7 @@ class ExpirationTimer {
     static bool timer_started;
 
     /** \brief Is this extension locked from being unloaded? */
-    bool locked;
+    int locked;
     /** \brief Next entry in the list */
     ExpirationTimer * next;
     /** \brief When this timer expires */
@@ -49,8 +49,8 @@ public:
     ~ExpirationTimer(void);
 
     void touch (void);
-    void lock (void)   { locked = true;  };
-    void unlock (void) { locked = false; };
+    void lock (void)   { locked++;  };
+    void unlock (void) { locked--; };
 
     /** \brief Set the timeout variable */
     static void set_timeout (long in_seconds) { timeout = in_seconds; };
-- 
2.30.2