Use ShowQuasiModal to show a few dialogs.

This change is mainly due to the fact Modal dialogs do not work when our
current tool is the tool used to create new item (text, zone, graphic).
If when this tool is active, one try to edit the properties of the new item
being created (or being placed) the modal dialog does not capture the event tool
and hangs (cannot be dismissed)
Our quasi modal dialogs have their own event loop and work.
Fixes #7585
https://gitlab.com/kicad/code/kicad/issues/7585

pcbnew/dialogs/dialog_copper_zones.cpp

@@ -98,7 +98,7 @@ int InvokeCopperZonesEditor( PCB_BASE_FRAME* aCaller, ZONE_SETTINGS* aSettings )
 {
     DIALOG_COPPER_ZONE dlg( aCaller, aSettings );
 
-    return dlg.ShowModal();
+    return dlg.ShowQuasiModal();
 }
 
 #define MIN_THICKNESS ZONE_THICKNESS_MIN_VALUE_MIL*IU_PER_MILS
@@ -321,7 +321,8 @@ bool DIALOG_COPPER_ZONE::TransferDataFromWindow()
 
 void DIALOG_COPPER_ZONE::OnClose( wxCloseEvent& event )
 {
-    EndModal( m_settingsExported ? ZONE_EXPORT_VALUES : wxID_CANCEL );
+    SetReturnCode( m_settingsExported ? ZONE_EXPORT_VALUES : wxID_CANCEL );
+    event.Skip();
 }
 
 

pcbnew/dialogs/dialog_graphic_item_properties.cpp

@@ -146,7 +146,7 @@ void PCB_BASE_EDIT_FRAME::ShowGraphicItemPropertiesDialog( BOARD_ITEM* aItem )
     wxCHECK_RET( aItem != NULL, wxT( "ShowGraphicItemPropertiesDialog() error: NULL item" ) );
 
     DIALOG_GRAPHIC_ITEM_PROPERTIES dlg( this, aItem );
-    dlg.ShowModal();
+    dlg.ShowQuasiModal();
 }
 
 

pcbnew/dialogs/dialog_non_copper_zones_properties.cpp

@@ -65,7 +65,7 @@ int InvokeNonCopperZonesEditor( PCB_BASE_FRAME* aParent, ZONE_SETTINGS* aSetting
 {
     DIALOG_NON_COPPER_ZONES_EDITOR  dlg( aParent, aSettings );
 
-    return dlg.ShowModal();
+    return dlg.ShowQuasiModal();
 }
 
 #define MIN_THICKNESS 10*IU_PER_MILS

pcbnew/dialogs/dialog_text_properties.cpp

@@ -172,13 +172,11 @@ DIALOG_TEXT_PROPERTIES::~DIALOG_TEXT_PROPERTIES()
 }
 
 
-/**
- * Routine for main window class to launch text properties dialog.
- */
+// Launch the text properties dialog in quasi modal mode.
 void PCB_BASE_EDIT_FRAME::ShowTextPropertiesDialog( BOARD_ITEM* aText )
 {
     DIALOG_TEXT_PROPERTIES dlg( this, aText );
-    dlg.ShowModal();
+    dlg.ShowQuasiModal();
 }
 
 
@@ -187,7 +185,12 @@ void DIALOG_TEXT_PROPERTIES::OnCharHook( wxKeyEvent& aEvent )
     if( aEvent.GetKeyCode() == WXK_RETURN && aEvent.ShiftDown() )
     {
         if( TransferDataFromWindow() )
-            EndModal( wxID_OK );
+        {
+            // Do not use EndModal to close the dialog that can be opened
+            // in quasi modal mode
+            SetReturnCode( wxID_OK );
+            Close();
+        }
     }
     else if( m_MultiLineText->IsShown() && m_MultiLineText->HasFocus() )
     {

pcbnew/edit.cpp

@@ -170,10 +170,10 @@ void PCB_EDIT_FRAME::OnEditItemRequest( BOARD_ITEM* aItem )
 
 void PCB_EDIT_FRAME::ShowDimensionPropertiesDialog( DIMENSION_BASE* aDimension )
 {
-    if( aDimension == NULL )
+    if( aDimension == nullptr )
         return;
 
     DIALOG_DIMENSION_PROPERTIES dlg( this, aDimension );
-    dlg.ShowModal();
+    dlg.ShowQuasiModal();
 }