From fd8e49c44352f155368a333a1de85c455dddf358 Mon Sep 17 00:00:00 2001
From: tomascz <nestorovic@seznam.cz>
Date: Mon, 16 Nov 2020 20:55:38 +0100
Subject: [PATCH] [#57] Support for KryoFlux and associated images (Part 18:
 Added commands to navigate between index pulses)

---
 Main/res/resource.rc           |  8 ++++++++
 Main/src/Image_TrackEditor.cpp | 31 +++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/Main/res/resource.rc b/Main/res/resource.rc
index d9fc9c0c..ff5b6f7c 100644
--- a/Main/res/resource.rc
+++ b/Main/res/resource.rc
@@ -162,6 +162,8 @@ BEGIN
     "-",            ID_ZOOM_OUT,            ASCII,  NOINVERT
     "0",            ID_ZOOM_FIT,            VIRTKEY, CONTROL, NOINVERT
     VK_ESCAPE,      IDCANCEL,               VIRTKEY, NOINVERT
+    VK_NEXT,        ID_NEXT,                VIRTKEY, CONTROL, NOINVERT
+    VK_PRIOR,       ID_PREV,                VIRTKEY, CONTROL, NOINVERT
 END
 
 
@@ -653,6 +655,12 @@ IDR_TRACK_EDITOR MENU DISCARDABLE
 BEGIN
     POPUP "Preview"
     BEGIN
+        POPUP "Go to"
+        BEGIN
+            MENUITEM "Previous index\tCtrl+PgUp",   ID_PREV
+            MENUITEM "Next index\tCtrl+PgDown",     ID_NEXT
+        END
+        MENUITEM SEPARATOR
         MENUITEM "Zoom in\t+",                  ID_ZOOM_IN
         MENUITEM "Zoom out\t–",                 ID_ZOOM_OUT
         MENUITEM "Zoom to fit\tCtrl+0",         ID_ZOOM_FIT
diff --git a/Main/src/Image_TrackEditor.cpp b/Main/src/Image_TrackEditor.cpp
index c4fc8101..f4735e6b 100644
--- a/Main/src/Image_TrackEditor.cpp
+++ b/Main/src/Image_TrackEditor.cpp
@@ -300,6 +300,17 @@
 				painter.repaintEvent.SetEvent();
 			}
 
+			TLogTime GetCenterTime() const{
+				CRect rc;
+				GetClientRect(&rc);
+				return scrollTime+timeline.GetTime( rc.Width()/(Utils::LogicalUnitScaleFactor*2.f) );
+			}
+
+			void SetCenterTime(TLogTime t){
+				scrollTime=0; // base time for GetCenterTime
+				SetScrollTime( t-GetCenterTime() );
+			}
+
 			inline PCLogTime GetInspectionWindowEndTimes() const{
 				return iwEndTimes;
 			}
@@ -426,6 +437,12 @@
 						case ID_RECOGNIZE:
 							pCmdUi->SetCheck( timeEditor.GetInspectionWindowEndTimes()!=nullptr );
 							return TRUE;
+						case ID_PREV:
+							pCmdUi->SetCheck( tr.GetIndexCount()>0 && timeEditor.GetCenterTime()>tr.GetIndexTime(0) );
+							return TRUE;
+						case ID_NEXT:
+							pCmdUi->SetCheck( tr.GetIndexCount()>0 && timeEditor.GetCenterTime()<tr.GetIndexTime(tr.GetIndexCount()-1) );
+							return TRUE;
 					}
 					break;
 				}
@@ -456,6 +473,20 @@
 								timeEditor.SetInspectionWindowEndTimes(iwEndTimes);
 							}
 							return TRUE;
+						case ID_PREV:{
+							BYTE i=0;
+							for( const TLogTime tCenter=timeEditor.GetCenterTime(); i<tr.GetIndexCount()&&tCenter>tr.GetIndexTime(i); i++ );
+							if (i>0)
+								timeEditor.SetCenterTime( tr.GetIndexTime(i-1) );
+							return TRUE;
+						}
+						case ID_NEXT:{
+							BYTE i=0;
+							for( const TLogTime tCenter=timeEditor.GetCenterTime(); i<tr.GetIndexCount()&&tCenter>=tr.GetIndexTime(i); i++ );
+							if (i<tr.GetIndexCount())
+								timeEditor.SetCenterTime( tr.GetIndexTime(i) );
+							return TRUE;
+						}
 					}
 					break;
 			}