From 4be9fa0538a2443c9ab730d3ae0c3b9fe8fbf1e6 Mon Sep 17 00:00:00 2001
From: "Charles J. Cliffe" <cj@cubicproductions.com>
Date: Mon, 15 Aug 2016 23:53:27 -0400
Subject: [PATCH] Support ranged frequency input for center frequency

---
 CMakeLists.txt          |  2 +-
 src/AppFrame.cpp        | 11 +++++++++
 src/AppFrame.h          |  4 +++-
 src/FrequencyDialog.cpp | 51 +++++++++++++++++++++++++++++++++++++----
 4 files changed, 62 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8250013..7f8ac92 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules/")
 SET(CUBICSDR_VERSION_MAJOR "0")
 SET(CUBICSDR_VERSION_MINOR "2")
 SET(CUBICSDR_VERSION_PATCH "0")
-SET(CUBICSDR_VERSION_REL "beta-rc5")
+SET(CUBICSDR_VERSION_REL "beta-rc6")
 SET(CUBICSDR_VERSION "${CUBICSDR_VERSION_MAJOR}.${CUBICSDR_VERSION_MINOR}.${CUBICSDR_VERSION_PATCH}-${CUBICSDR_VERSION_REL}")
 
 SET(CPACK_PACKAGE_VERSION "${CUBICSDR_VERSION_MAJOR}.${CUBICSDR_VERSION_MINOR}.${CUBICSDR_VERSION_PATCH}")
diff --git a/src/AppFrame.cpp b/src/AppFrame.cpp
index 3e39091..bf1ccca 100644
--- a/src/AppFrame.cpp
+++ b/src/AppFrame.cpp
@@ -2191,3 +2191,14 @@ void AppFrame::setSpectrumAvgSpeed(double avg) {
     spectrumAvgMeter->setUserInputValue(avg);
 }
 
+void AppFrame::setViewState(long long center_freq, int bandwidth) {
+    spectrumCanvas->setView(center_freq, bandwidth);
+    waterfallCanvas->setView(center_freq, bandwidth);
+}
+
+void AppFrame::setViewState(long long center_freq) {
+    spectrumCanvas->setCenterFrequency(wxGetApp().getFrequency());
+    waterfallCanvas->setCenterFrequency(wxGetApp().getFrequency());
+    spectrumCanvas->disableView();
+    waterfallCanvas->disableView();
+}
diff --git a/src/AppFrame.h b/src/AppFrame.h
index aedc53c..fcd73f9 100644
--- a/src/AppFrame.h
+++ b/src/AppFrame.h
@@ -98,7 +98,9 @@ public:
     
     FrequencyDialog::FrequencyDialogTarget getFrequencyDialogTarget();
     void refreshGainUI();
-
+    void setViewState(long long center_freq, int bandwidth);
+    void setViewState(long long center_freq);
+    
 #ifdef _WIN32
 	bool canFocus();
 #endif
diff --git a/src/FrequencyDialog.cpp b/src/FrequencyDialog.cpp
index 1d6fb04..9b6adb5 100644
--- a/src/FrequencyDialog.cpp
+++ b/src/FrequencyDialog.cpp
@@ -69,25 +69,68 @@ FrequencyDialog::FrequencyDialog(wxWindow * parent, wxWindowID id, const wxStrin
 
 void FrequencyDialog::OnChar(wxKeyEvent& event) {
     int c = event.GetKeyCode();
-    long long freq;
+    long long freq, freq2, freq_ctr, range_bw;
     double dblval;
     std::string lastDemodType = activeDemod?activeDemod->getDemodulatorType():wxGetApp().getDemodMgr().getLastDemodulatorType();
     std::string strValue = dialogText->GetValue().ToStdString();
+    bool ranged = false;
+    std::string strValue2;
+    size_t range_pos;
+    
     
     switch (c) {
     case WXK_RETURN:
     case WXK_NUMPAD_ENTER:
         // Do Stuff
+        ranged = false;
+        if ((range_pos = strValue.find_first_of("-")) > 0) {
+            strValue2 = strValue.substr(range_pos+1);
+            strValue = strValue.substr(0,range_pos);
+
+            if (targetMode == FDIALOG_TARGET_DEFAULT && !activeDemod && strValue.length() && strValue2.length()) {
+                ranged = true;
+            }
+        }
 
         if (targetMode == FDIALOG_TARGET_DEFAULT) {
-            freq = strToFrequency(strValue);
+            if (ranged) {
+                freq = strToFrequency(strValue);
+                freq2 = strToFrequency(strValue2);
+            } else {
+                freq = strToFrequency(strValue);
+            }
             if (activeDemod) {
                 activeDemod->setTracking(true);
                 activeDemod->setFollow(true);
                 activeDemod->setFrequency(freq);
                 activeDemod->updateLabel(freq);
             } else {
-                wxGetApp().setFrequency(freq);
+                if (ranged && (freq || freq2)) {
+                    if (freq > freq2) {
+                        std::swap(freq,freq2);
+                    }
+                    range_bw = (freq2-freq);
+                    freq_ctr = freq + (range_bw/2);
+                    if (range_bw > wxGetApp().getSampleRate()) {
+                        range_bw = wxGetApp().getSampleRate();
+                    }
+                    if (range_bw < 30000) {
+                        range_bw = 30000;
+                    }
+                    if (freq == freq2) {
+                        wxGetApp().setFrequency(freq_ctr);
+                        wxGetApp().getAppFrame()->setViewState(freq_ctr);
+                    } else {
+                        if (wxGetApp().getSampleRate()/4 > range_bw) {
+                            wxGetApp().setFrequency(freq_ctr + wxGetApp().getSampleRate()/4);
+                        } else {
+                            wxGetApp().setFrequency(freq_ctr);
+                        }
+                        wxGetApp().getAppFrame()->setViewState(freq_ctr, range_bw);
+                    }
+                } else {
+                    wxGetApp().setFrequency(freq);
+                }
             }
         }
         if (targetMode == FDIALOG_TARGET_BANDWIDTH) {
@@ -161,7 +204,7 @@ void FrequencyDialog::OnChar(wxKeyEvent& event) {
         break;
     }
 
-    std::string allowed("0123456789.MKGHZmkghz");
+    std::string allowed("0123456789.MKGHZmkghz-");
 
     if (allowed.find_first_of(c) != std::string::npos || c == WXK_DELETE || c == WXK_BACK || c == WXK_NUMPAD_DECIMAL
             || (c >= WXK_NUMPAD0 && c <= WXK_NUMPAD9)) {