[chronojump] Ensure viewport_image_encoder_capture dimensions are ok to R

[Xavier de Blas <xaviblas src gnome org>]

commit 81ed6d0aa3df46b7b78211ceccf629fd33f82a3a
Author: Xavier de Blas <xaviblas gmail com>
Date:   Sat Jul 22 14:18:57 2017 +0200

    Ensure viewport_image_encoder_capture dimensions are ok to R

 src/gui/encoder.cs |   30 +++++++++++++++++++++++-------
 1 files changed, 23 insertions(+), 7 deletions(-)
---
diff --git a/src/gui/encoder.cs b/src/gui/encoder.cs
index b1da1da..8ed3eb8 100644
--- a/src/gui/encoder.cs
+++ b/src/gui/encoder.cs
@@ -5047,7 +5047,12 @@ public partial class ChronoJumpWindow
                        }
 
                        image_encoder_width = UtilGtk.WidgetWidth(viewport_image_encoder_capture)-5; 
+                       if(image_encoder_width < 0)
+                               image_encoder_width = 100; //Not crash R with a png height of -1 or "figure 
margins too large"
+
                        image_encoder_height = UtilGtk.WidgetHeight(viewport_image_encoder_capture)-5;
+                       if(image_encoder_height < 0)
+                               image_encoder_height = 100; //Not crash R with a png height of -1 or "figure 
margins too large"
 
                        //don't need to be false because ItemToggled is deactivated during capture
                        treeview_encoder_capture_curves.Sensitive = true;
@@ -5175,9 +5180,14 @@ public partial class ChronoJumpWindow
                                        image_encoder_width = Convert.ToInt32(UtilGtk.WidgetWidth(app1) / 2);
                                else
                                        image_encoder_width = Convert.ToInt32(UtilGtk.WidgetWidth(app1));
+
+                               if(image_encoder_width < 0)
+                                       image_encoder_width = 100; //Not crash R with a png height of -1 or 
"figure margins too large"
                                
                                //-2 to accomadate the width slider without needing a height slider
                                image_encoder_height = UtilGtk.WidgetHeight(viewport_image_encoder_capture) 
-2;
+                               if(image_encoder_height < 0)
+                                       image_encoder_height = 100; //Not crash R with a png height of -1 or 
"figure margins too large"
 
                                prepareEncoderGraphs(true, true);
                                
@@ -5201,11 +5211,6 @@ public partial class ChronoJumpWindow
                                //don't call directly to prepareEncoderGraphs() here because it's called from 
a Non-GTK thread
                                needToCallPrepareEncoderGraphs = true; //needToCallPrepareEncoderGraphs will 
not erase them
                                
-                               //this is defined on capture process
-                               //image_encoder_width = 
UtilGtk.WidgetWidth(viewport_image_encoder_capture)-5; 
-                               //image_encoder_height = 
UtilGtk.WidgetHeight(viewport_image_encoder_capture)-5;
-                               
-                               
                                //_______ 2) run stuff
                                //this does not run a pulseGTK
                                encoderDoCurvesGraphR_curvesAC();
@@ -5215,7 +5220,13 @@ public partial class ChronoJumpWindow
                        
                        //the -5 is because image is inside (is smaller than) viewport
                        image_encoder_width = UtilGtk.WidgetWidth(scrolledwindow_image_encoder_analyze)-10;
+                       if(image_encoder_width < 0)
+                               image_encoder_width = 100; //Not crash R with a png height of -1 or "figure 
margins too large"
+
                        image_encoder_height = UtilGtk.WidgetHeight(scrolledwindow_image_encoder_analyze)-10;
+                       if(image_encoder_height < 0)
+                               image_encoder_height = 100; //Not crash R with a png height of -1 or "figure 
margins too large"
+
                        if(encoderAnalysis == "single") {
                                image_encoder_height -= UtilGtk.WidgetHeight(table_encoder_analyze_instant); 
//to allow hslides and table
                        }
@@ -5542,8 +5553,13 @@ public partial class ChronoJumpWindow
                if(needToCallPrepareEncoderGraphs) 
                {
                        image_encoder_width = UtilGtk.WidgetWidth(viewport_image_encoder_capture)-5; 
+                       if(image_encoder_width < 0)
+                               image_encoder_width = 100; //Not crash R with a png height of -1 or "figure 
margins too large"
+
                        image_encoder_height = UtilGtk.WidgetHeight(viewport_image_encoder_capture)-5;
-                               
+                       if(image_encoder_height < 0)
+                               image_encoder_height = 100; //Not crash R with a png height of -1 or "figure 
margins too large"
+
                        prepareEncoderGraphs(false, false); //do not erase them
                        needToCallPrepareEncoderGraphs = false;
                }
@@ -6068,7 +6084,7 @@ public partial class ChronoJumpWindow
 
                                        if(action == encoderActions.CURVES_AC)
                                        {
-                                               //1) unMute logs if preferences.muteLogs == true
+                                               //1) unMute logs if preferences.muteLogs == false
                                                LogB.Mute = preferences.muteLogs;
 
                                                //1) save the triggers now that we have an 
encoderSignalUniqueID