api: dump key binding strings (#606)

Print out human readable text for vKey when dumping bindings.

src/spice2x/cfg/button.cpp

@@ -278,6 +278,8 @@ std::string Button::getVKeyString() {
             return "Left Alt";
         case 0xA5:
             return "Right Alt";
+        case INVALID_VKEY:
+            return "Invalid";
         default:
 
             // check win API

src/spice2x/cfg/button.h

@@ -83,12 +83,20 @@ public:
         if (this->override_enabled) {
             return true;
         }
+
+        // has a device
+        if (!this->device_identifier.empty()) {
+            return true;
+        }
+
+        // naive, and has a valid vKey
         if (this->vKey != INVALID_VKEY) {
             return true;
         }
 
         for (auto &alternative : this->alternatives) {
-            if (alternative.vKey != INVALID_VKEY) {
+            if (!alternative.getDeviceIdentifier().empty() ||
+                alternative.getVKey() != INVALID_VKEY) {
                 return true;
             }
         }

src/spice2x/launcher/launcher.cpp

@@ -2569,9 +2569,10 @@ void dump_button_bindings(std::vector<Button> *buttons) {
 
         if (button->isNaive()) {
             log_misc(
-                "rawinput", "    [{}] dev=Naive, vkey={}",
+                "rawinput", "    [{}] dev=Naive, vkey={} ({})",
                 button->getName(),
-                button->getVKey()
+                button->getVKey(),
+                button->getVKeyString()
                 );
         } else {
             log_misc(
@@ -2584,16 +2585,25 @@ void dump_button_bindings(std::vector<Button> *buttons) {
         }
 
         for (auto& alt : button->getAlternatives()) {
-            if (alt.getVKey() == INVALID_VKEY) {
+            if (!alt.isValid()) {
                 continue;
             }
-            log_misc(
-                "rawinput", "    [{}] (alt) dev={}, vkey={}, analogtype={}",
-                button->getName(),
-                alt.isNaive() ? "Naive" : alt.getDeviceIdentifier(),
-                alt.getVKey(),
-                static_cast<uint32_t>(alt.getAnalogType())
-                );
+            if (alt.isNaive()) {
+                log_misc(
+                    "rawinput", "    [{}] (alt) dev=Naive, vkey={} ({})",
+                    alt.getName(),
+                    alt.getVKey(),
+                    alt.getVKeyString()
+                    );
+            } else {
+                log_misc(
+                    "rawinput", "    [{}] (alt) dev={}, vkey={}, analogtype={}",
+                    alt.getName(),
+                    alt.getDeviceIdentifier(),
+                    alt.getVKey(),
+                    static_cast<uint32_t>(alt.getAnalogType())
+                    );
+            }
         }
     }
 }