settings dialog styling

restyle settings for allowing narrow screen: issue #1328

https://github.com/xournalpp/xournalpp/issues/1328

adapt Settings dialog to smaller screens

fix cbTrySelectOnStrokeFiltered width

make GtkNoteBook scrollable

src/gui/dialog/SettingsDialog.cpp

@@ -166,6 +166,33 @@ void SettingsDialog::setDpi(int dpi) {
 void SettingsDialog::show(GtkWindow* parent) {
     load();
 
+    // detect display size. If large enough, we enlarge the Settings
+    // Window up to 1000x740.
+    GdkDisplay* disp = gdk_display_get_default();
+    if (disp != NULL) {
+        GdkWindow* win = gtk_widget_get_window(GTK_WIDGET(parent));
+        if (win != NULL) {
+            GdkMonitor* moni = gdk_display_get_monitor_at_window(disp, win);
+            GdkRectangle workarea;
+            gdk_monitor_get_workarea(moni, &workarea);
+            gint w = -1;
+            gint h = -1;
+            if (workarea.width > 1100) {
+                w = 1000;
+            } else if (workarea.width > 920) {
+                w = 900;
+            }
+            if (workarea.height > 800) {
+                h = 740;
+            } else if (workarea.height > 620) {
+                h = 600;
+            }
+            gtk_window_set_default_size(GTK_WINDOW(this->window), w, h);
+        } else {
+            g_message("Parent window does not have a GDK Window. This is unexpected.");
+        }
+    }
+
     gtk_window_set_transient_for(GTK_WINDOW(this->window), parent);
     int res = gtk_dialog_run(GTK_DIALOG(this->window));
 

ui/exportSettings.glade

@@ -46,6 +46,7 @@
         <property name="can-focus">False</property>
         <property name="orientation">vertical</property>
         <property name="spacing">4</property>
+	<property name="margin">12</property>
         <child internal-child="action_area">
           <object class="GtkButtonBox" id="dialog-action_area2">
             <property name="name">dialog-action_area2</property>

ui/latexSettings.glade

@@ -11,8 +11,8 @@
   <object class="GtkScrolledWindow" id="latexSettingsPanel">
     <property name="visible">True</property>
     <property name="can_focus">True</property>
-    <property name="shadow_type">in</property>
-    <property name="min_content_height">500</property>
+    <property name="min_content_height">450</property>
+    <property name="min_content_width">500</property>
     <child>
       <object class="GtkViewport">
         <property name="visible">True</property>
@@ -22,11 +22,13 @@
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
+	    <property name="vexpand">True</property>
             <child>
               <object class="GtkFrame">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
-                <property name="label_xalign">0</property>
+                <property name="label_xalign">0.01</property>
+                <property name="margin">12</property>
                 <child>
                   <object class="GtkAlignment">
                     <property name="visible">True</property>
@@ -75,7 +77,8 @@
               <object class="GtkFrame">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
-                <property name="label_xalign">0</property>
+                <property name="label_xalign">0.01</property>
+                <property name="margin">12</property>
                 <child>
                   <object class="GtkAlignment">
                     <property name="visible">True</property>
@@ -107,6 +110,7 @@
                             <property name="visible">True</property>
                             <property name="can_focus">False</property>
                             <property name="halign">start</property>
+			    <property name="wrap">True</property>
                             <property name="label" translatable="yes">The following strings will be substituted in the global template file when running the LaTeX tool:</property>
                           </object>
                           <packing>
@@ -222,7 +226,8 @@
               <object class="GtkFrame">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
-                <property name="label_xalign">0</property>
+                <property name="label_xalign">0.01</property>
+                <property name="margin">12</property>
                 <child>
                   <object class="GtkAlignment">
                     <property name="visible">True</property>

ui/pageTemplate.glade

@@ -28,6 +28,7 @@
         <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <property name="spacing">4</property>
+	<property name="margin">12</property>
         <child internal-child="action_area">
           <object class="GtkButtonBox" id="dialog-action_area2">
             <property name="name">dialog-action_area2</property>
@@ -125,7 +126,7 @@
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="halign">center</property>
-                <property name="margin_top">10</property>
+                <property name="margin_top">12</property>
                 <property name="column_spacing">10</property>
                 <child>
                   <object class="GtkLabel" id="label2">

ui/xournalpp.css

@@ -71,3 +71,12 @@ GtkToolbar GtkButton
 	padding: 2
 }
 */
+
+
+/*
+Labels for subsections of the Settings dialog
+*/
+notebook frame>label{
+    color: #666;
+    font-weight: bold;
+}