Ticket #486: DeleteMachine_and_RestoreConnections.patch

buzelib/buze.rc

@@ -983 +983 @@
 BEGIN
     VK_F1,          ID_HELP,                VIRTKEY, NOINVERT
 
+        // TODO: don't know wether this one should be here or in `IDR_MAINFRAME ACCELERATORS`
+        VK_DELETE,              ID_MACHINE_DELETE_AND_RESTORE,   VIRTKEY, SHIFT, NOINVERT
+
         VK_UP,                  ID_MACHINE_MOVE_UP,                              VIRTKEY, CONTROL, NOINVERT
         VK_DOWN,                ID_MACHINE_MOVE_DOWN,                    VIRTKEY, CONTROL, NOINVERT
         VK_LEFT,                ID_MACHINE_MOVE_LEFT,                    VIRTKEY, CONTROL, NOINVERT

buzelib/Document.cpp

@@ -383 +383 @@
         }
 
 }
+void CDocument::deleteSelectedMachinesAndRestoreConnections() {
+        // TODO: this patch handles only audio connection. `Midi` and `event` connection can be 
+        //       easily added here by analogy
 
+        // It is be too difficult for now to perform and test delete->restore for more that one machine
+        if(getSelectedMachines() == 1) {
+                int plugin = getSelectedMachine(0);
+
+                // checking if machine has both input and output connections
+                // otherwise there is no sense to store and recall volumes 
+                if(zzub_plugin_get_input_connection_count(player, plugin) > 0 && zzub_plugin_get_output_connection_count(player, plugin) > 0) {
+                        int inputVolume = 0, outputVolume = 0;
+                        
+                        // looping through input connections
+                        for (int i = 0; i < zzub_plugin_get_input_connection_count(player, plugin); i++) {
+                                int in_plugin = zzub_plugin_get_input_connection_plugin(player, plugin, i);
+                                int audioconn_in = zzub_plugin_get_input_connection_by_type(player, plugin, in_plugin, zzub_connection_type_audio);
+                                assert(audioconn_in != -1);
+                                // geting input volume
+                                int inputVolume = zzub_plugin_get_parameter_value(player, plugin, 0, audioconn_in, 0);
+
+                                // looping through output connections
+                                for (int i = 0; i < zzub_plugin_get_output_connection_count(player, plugin); i++) {
+                                        int out_plugin = zzub_plugin_get_output_connection_plugin(player, plugin, i);
+                                        int audioconn_out = zzub_plugin_get_output_connection_by_type(player, plugin, out_plugin, zzub_connection_type_audio);
+                                        assert(audioconn_out != -1);
+                                        // geting input volume
+                                        int outputVolume = zzub_plugin_get_parameter_value(player, plugin, 0, audioconn_out, 0);
+                                        
+                                        // connecting "in_plugin" to "out_plugin" and setting in+out volume taken from plugin been deleted
+                                        // Formula could be (inputVolume + outputVolume)/2 but in real situations it is better
+                                        // to have just `inputVolume`
+                                        connectMachinesAudio(in_plugin, out_plugin, inputVolume, 0x4000);
+                                }
+                        }
+                }
+        }
+        // Let's delete that machine at last
+        deleteSelectedMachines();
+}
+
+
 void CDocument::doublePatternRows(int machine, int pattern) {
 
         int pattern_length = zzub_plugin_get_pattern_length(player, machine, pattern);

buzelib/Document.h

@@ -187 +187 @@
         bool connectMachinesMidi(int output, int input, string midiOutDevice);
         bool disconnectMachines(int output, int input, zzub_connection_type type);
     void deleteSelectedMachines();
+        void deleteSelectedMachinesAndRestoreConnections();
         bool importSong(std::vector<char>& bytes, int allowundo, std::string* error_messages);
         bool importSong(std::string filename, int allowundo, std::string* error_messages);
 

buzelib/MachineView.cpp

@@ -2229 +2229 @@
         return 0;
 }
 
+LRESULT CMachineView::OnDeleteAndRestoreConnections(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& bHandled) {
+//      MessageBox("Yooo");
+
+        document->deleteSelectedMachinesAndRestoreConnections();
+        zzub_player_history_commit(player, "Delete Plugin(s)");
+
+        //document->updateAllViews(this, UpdateMachineSelection);
+        return 0;
+}
+
 LRESULT CMachineView::OnSelectAll(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& bHandled) {
         for (size_t i = 0; i < zzub_player_get_plugin_count(mainFrame->player); i++) {
                 int plugin_id = zzub_plugin_get_id(player, i);

buzelib/MachineView.h

@@ -139 +139 @@
                 COMMAND_ID_HANDLER(ID_EDIT_COPY, OnCopy)
                 COMMAND_ID_HANDLER(ID_EDIT_PASTE, OnPaste)
                 COMMAND_ID_HANDLER(ID_EDIT_DELETE, OnDelete)
+                COMMAND_ID_HANDLER(ID_MACHINE_DELETE_AND_RESTORE, OnDeleteAndRestoreConnections)
                 COMMAND_ID_HANDLER(ID_EDIT_SELECTALL, OnSelectAll)
                 COMMAND_ID_HANDLER(ID_EDIT_CLEARSELECTION, OnClearSelection)
                 COMMAND_ID_HANDLER(ID_VIEW_PROPERTIES, OnViewProperties)
@@ -196 +197 @@
         LRESULT OnCopy(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/);
         LRESULT OnPaste(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/);
         LRESULT OnDelete(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/);
+        LRESULT OnDeleteAndRestoreConnections(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/);
         LRESULT OnSelectAll(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/);
         LRESULT OnClearSelection(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/);
         LRESULT OnViewProperties(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/);

buzelib/resource.h

@@ -436 +436 @@
 #define ID_MACHINE_MOVE_DOWN_RIGHT_STEP 53584
 #define ID_MACHINE_MOVE_UP_RIGHT_STEP  53585
 
+
+#define ID_MACHINE_DELETE_AND_RESTORE 53600
+
 // Next default values for new objects
 // 
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
 #define _APS_NEXT_RESOURCE_VALUE        238
-#define _APS_NEXT_COMMAND_VALUE         53586
+#define _APS_NEXT_COMMAND_VALUE         53601
 #define _APS_NEXT_CONTROL_VALUE         1084
 #define _APS_NEXT_SYMED_VALUE           101
 #endif