# HG changeset patch
# User adf88@interia.pl
# Date 1499796264 -7200
#      Tue Jul 11 20:04:24 2017 +0200
# Branch trunk
# Node ID 8ca4ed947e1b47c1f819a3016ee734c3553481d3
# Parent  0d78b96563c56d72f798bf6767cf6ca5a2ac00c1
Break "link" between industry chain and smallmap windows only when needed.

diff --git a/src/smallmap_gui.cpp b/src/smallmap_gui.cpp
--- a/src/smallmap_gui.cpp
+++ b/src/smallmap_gui.cpp
@@ -1275,6 +1275,8 @@
 	this->SetupWidgetData();
 
 	if (map_type == SMT_LINKSTATS) this->overlay->RebuildCache();
+
+
 	this->SetDirty();
 }
 
@@ -1380,9 +1382,6 @@
 
 /* virtual */ void SmallMapWindow::OnClick(Point pt, int widget, int click_count)
 {
-	/* User clicked something, notify the industry chain window to stop sending newly selected industries. */
-	InvalidateWindowClassesData(WC_INDUSTRY_CARGOES, NUM_INDUSTRYTYPES);
-
 	switch (widget) {
 		case WID_SM_MAP: { // Map window
 			/*
@@ -1423,6 +1422,7 @@
 		case WID_SM_OWNERS:     // Show land owners
 			this->SwitchMapType((SmallMapType)(widget - WID_SM_CONTOUR));
 			if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
+			if (widget != WID_SM_INDUSTRIES) InvalidateWindowClassesData(WC_INDUSTRY_CARGOES, NUM_INDUSTRYTYPES); // Notify the industry chain window to stop sending newly selected industries.
 			break;
 
 		case WID_SM_CENTERMAP: // Center the smallmap again
@@ -1449,6 +1449,7 @@
 					/* If click on industries label, find right industry type and enable/disable it. */
 					if (click_pos < _smallmap_industry_count) {
 						this->SelectLegendItem(click_pos, _legend_from_industries, _smallmap_industry_count);
+						InvalidateWindowClassesData(WC_INDUSTRY_CARGOES, NUM_INDUSTRYTYPES); // Notify the industry chain window to stop sending newly selected industries.
 					}
 				} else if (this->map_type == SMT_LINKSTATS) {
 					if (click_pos < _smallmap_cargo_count) {
@@ -1471,6 +1472,7 @@
 			switch (this->map_type) {
 				case SMT_INDUSTRY:
 					tbl = _legend_from_industries;
+					InvalidateWindowClassesData(WC_INDUSTRY_CARGOES, NUM_INDUSTRYTYPES); // Notify the industry chain window to stop sending newly selected industries.
 					break;
 				case SMT_OWNER:
 					tbl = &(_legend_land_owners[NUM_NO_COMPANY_ENTRIES]);