Added C++ support to gr-analog, gr-blocks and grc

blocks/import.block.yml

@@ -1,5 +1,6 @@
 id: import_
 label: Import
+flags: python
 
 parameters:
 -   id: imports

blocks/note.block.yml

@@ -1,5 +1,6 @@
 id: note
 label: Note
+flags: python, cpp
 
 parameters:
 -   id: note

blocks/options.block.yml

@@ -1,6 +1,6 @@
 id: options
 label: Options
-flags: has_python, has_cpp
+flags: python, cpp
 
 parameters:
 -   id: title
@@ -156,7 +156,7 @@ templates:
         else: self.stop(); self.wait()'
 
 cpp_templates:
-    includes: '#include <gnuradio/top_block.h>'
+    includes: ['#include <gnuradio/top_block.h>']
 
 documentation: |-
     The options block sets special parameters for the flow graph. Only one option block is allowed per flow graph.

blocks/pad_sink.block.yml

@@ -1,5 +1,6 @@
 id: pad_sink
 label: Pad Sink
+flags: python
 
 parameters:
 -   id: label

blocks/pad_source.block.yml

@@ -1,5 +1,6 @@
 id: pad_source
 label: Pad Source
+flags: python
 
 parameters:
 -   id: label

blocks/parameter.block.yml

@@ -1,5 +1,6 @@
 id: parameter
 label: Parameter
+flags: python, cpp
 
 parameters:
 -   id: label
@@ -37,6 +38,10 @@ templates:
     var_make: self.${id} = ${id}
     make: ${value}
 
+cpp_templates:
+    var_make: ${type.type} ${id} = ${id};
+    make: ${value}
+
 documentation: |-
     This block represents a parameter to the flow graph. A parameter can be used to pass command line arguments into a top block. Or, parameters can pass arguments into an instantiated hierarchical block.
 

blocks/stream.domain.yml

@@ -7,5 +7,5 @@ multiple_connections_per_output: true
 
 templates:
 -   type: [stream, stream]
-    connect: connect(${ make_port_sig(source) }, ${ make_port_sig(sink) })
+    connect: self.connect(${ make_port_sig(source) }, ${ make_port_sig(sink) })
     cpp_connect: hier_block2::connect(${ make_port_sig(source) }, ${ make_port_sig(sink) })

blocks/variable.block.yml

@@ -1,6 +1,6 @@
 id: variable
 label: Variable
-flags: has_python, has_cpp
+flags: python, cpp
 
 parameters:
 -   id: value

blocks/variable_config.block.yml

@@ -1,5 +1,6 @@
 id: variable_config
 label: Variable Config
+flags: python
 
 parameters:
 -   id: value

blocks/variable_function_probe.block.yml

@@ -1,5 +1,6 @@
 id: variable_function_probe
 label: Function Probe
+flags: python
 
 parameters:
 -   id: block_id

core/blocks/_flags.py

@@ -25,8 +25,8 @@ class Flags(object):
     NEED_QT_GUI = 'need_qt_gui'
     DEPRECATED = 'deprecated'
     NOT_DSP = 'not_dsp'
-    HAS_PYTHON = 'has_python'
-    HAS_CPP = 'has_cpp'
+    HAS_PYTHON = 'python'
+    HAS_CPP = 'cpp'
 
     def __init__(self, flags):
         self.data = set(flags)

core/blocks/block.py

@@ -169,9 +169,14 @@ class Block(Element):
         """check if this block supports the selected output language"""
         current_output_language = self.parent.get_option('output_language')
 
-        if current_output_language == 'cpp' and 'has_cpp' not in self.flags:
+        if current_output_language == 'cpp':
+            if 'cpp' not in self.flags:
                 self.add_error_message("This block does not support C++ output.")
 
+            if self.key == 'parameter':
+                if not self.params['type'].value:
+                    self.add_error_message("C++ output requires you to choose a parameter type.")
+
     def _validate_var_value(self):
         """or variables check the value (only if var_value is used)"""
         if self.is_variable and self.value != 'value':
@@ -266,6 +271,8 @@ class Block(Element):
             a list of strings
         """
         def make_callback(callback):
+            if self.is_variable:
+                return callback
             if 'this->' in callback:
                 return callback
             return 'this->{}->{}'.format(self.name, callback)

core/generator/cpp_templates/CMakeLists.txt.mako

@@ -16,7 +16,7 @@ class_name = flow_graph.get_option('id')
 cmake_opt_list = flow_graph.get_option('cmake_opt').split(";")
 %>\
 
-# cmake_minimum_required(VERSION 3.8) Which version?
+cmake_minimum_required(VERSION 3.8) # Which version?
 
 % if generate_options == 'qt_gui':
 find_package(Qt5Widgets REQUIRED)
@@ -50,11 +50,14 @@ set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
 
 set(GR_LIBRARIES
     boost_system
+    % if parameters:
+    boost_program_options
+    % endif
     gnuradio-blocks
     gnuradio-runtime
     gnuradio-pmt
     % for link in links:
-    % if link != '':
+    % if link:
     ${link}
     % endif
     % endfor

core/generator/cpp_templates/flow_graph.cpp.mako

@@ -1,3 +1,4 @@
+<%def name="doubleindent(code)">${ '\n        '.join(str(code).splitlines()) }</%def>\
 /********************
 GNU Radio C++ Flow Graph Source File
 
@@ -12,21 +13,24 @@ Generated: ${generated_time}
 ********************/
 
 #include "${flow_graph.get_option('id')}.hpp"
+% if parameters:
 
+namespace po = boost::program_options;
+
+% endif
 using namespace gr;
 
 <%
-	class_name = flow_graph.get_option('id')
-## TODO: param_str
+class_name = flow_graph.get_option('id')
+param_str = ", ".join((param.vtype + " " + param.name) for param in parameters)
+param_str_without_types = ", ".join(param.name for param in parameters)
 %>\
-<%def name="indent(code)">${ '\n        '.join(str(code).splitlines()) }</%def>
 
-## TODO: param_str
 % if generate_options == 'no_gui':
-${class_name}::${class_name} () : top_block("${title}") {
+${class_name}::${class_name} (${param_str}) {
 % elif generate_options.startswith('hb'):
 ## TODO: make_io_sig
-${class_name}::${class_name} () : hier_block2("${title}") {
+${class_name}::${class_name} (${param_str}) : hier_block2("${title}") {
 % for pad in flow_graph.get_hier_block_message_io('in'):
     message_port_register_hier_in("${pad['label']}")
 % endfor
@@ -34,7 +38,7 @@ ${class_name}::${class_name} () : hier_block2("${title}") {
     message_port_register_hier_out("${pad['label']}")
 % endfor
 % elif generate_options == 'qt_gui':
-${class_name}::${class_name} () : QWidget(), top_block("display_qt") {
+${class_name}::${class_name} (${param_str}) : QWidget() {
     this->setWindowTitle("${title}");
     // check_set_qss
     // set icon
@@ -58,11 +62,15 @@ ${class_name}::${class_name} () : QWidget(), top_block("display_qt") {
 ## self._lock = threading.RLock()
 % endif
 
+% if not generate_options.startswith('hb'):
+    this->tb = make_top_block("${title}");
+% endif
+
 % if blocks:
 // Blocks:
 % for blk, blk_make, declarations in blocks:
     {
-        ${indent(blk_make)}
+        ${doubleindent(blk_make)}
 ##      % if 'alias' in blk.params and blk.params['alias'].get_evaluated():
 ##      ${blk.name}.set_block_alias("${blk.params['alias'].get_evaluated()}")
 ##      % endif
@@ -107,11 +115,31 @@ void ${class_name}::set_${var.name} (${var.vtype} ${var.name}) {
     % endfor
 % endif
 }
+
 % endfor
 
 int main (int argc, char **argv) {
     % if parameters:
-    ## parse args
+    % for parameter in parameters:
+    ${parameter.vtype} ${parameter.name};
+    % endfor
+
+    po::options_description desc("Options");
+    desc.add_options()
+    ("help", "display help")
+    % for parameter in parameters:
+    ("${parameter.name}", po::value<${parameter.vtype}>(&${parameter.name}), "${parameter.label}")
+    % endfor
+    ;
+
+    po::variables_map vm;
+    po::store(po::parse_command_line(argc, argv, desc), vm);
+    po::notify(vm);
+
+    if (vm.count("help")) {
+        std::cout << desc << std::endl;
+        return 0;
+    }
     % endif
     % if flow_graph.get_option('realtime_scheduling'):
     if (enable_realtime_scheduling() != RT_OK) {
@@ -123,7 +151,7 @@ int main (int argc, char **argv) {
     ${class_name}* top_block = new ${class_name}();
     ## TODO: params
     % if flow_graph.get_option('run_options') == 'prompt':
-    top_block->start();
+    top_block->tb->start();
     % for m in monitors:
     (top_block->${m.name}).start();
     % endfor
@@ -131,7 +159,7 @@ int main (int argc, char **argv) {
     std::cin.ignore();
     top_block->stop();
     % elif flow_graph.get_option('run_options') == 'run':
-    top_block->start();
+    top_block->tb->start();
     % endif
     % for m in monitors:
     (top_block->${m.name}).start();
@@ -140,9 +168,9 @@ int main (int argc, char **argv) {
     % elif generate_options == 'qt_gui':
     QApplication app(argc, argv);
 
-    ${class_name} *top_block = new ${class_name}();
+    ${class_name} *top_block = new ${class_name}(${param_str_without_types});
 
-    top_block->start();
+    top_block->tb->start();
     top_block->show();
     app.exec();
 

core/generator/cpp_templates/flow_graph.hpp.mako

@@ -1,3 +1,4 @@
+<%def name="indent(code)">${ '    ' + '\n    '.join(str(code).splitlines()) }</%def>\
 #ifndef ${flow_graph.get_option('id').upper()}_HPP
 #define ${flow_graph.get_option('id').upper()}_HPP
 /********************
@@ -28,19 +29,25 @@ ${inc}
 #include <QSettings>
 % endif
 
+% if parameters:
+#include <iostream>
+#include <boost/program_options.hpp>
+% endif
+
 using namespace gr;
 
 <%
-	class_name = flow_graph.get_option('id')
-## TODO: param_str
+class_name = flow_graph.get_option('id')
+param_str = ", ".join((param.vtype + " " + param.name) for param in parameters)
 %>\
 
+
 % if generate_options == 'no_gui':
-class ${class_name} : public top_block {
+class ${class_name} {
 % elif generate_options.startswith('hb'):
 class ${class_name} : public hier_block2 {
 % elif generate_options == 'qt_gui':
-class ${class_name} : public QWidget, public top_block {
+class ${class_name} : public QWidget {
     Q_OBJECT
 % endif
 
@@ -56,15 +63,15 @@ private:
 
 
 % for block, make, declarations in blocks:
-    % if declarations:
-    ${declarations}
-    % endif
+% if declarations:
+${indent(declarations)}
+% endif
 % endfor
 
 % if parameters:
 // Parameters:
 % for param in parameters:
-    ${param.get_var_make()}
+    ${param.get_cpp_var_make()}
 % endfor
 % endif
 
@@ -76,8 +83,10 @@ private:
 % endif
 
 public:
-	${class_name}();
-    ## TODO: param_str
+% if not generate_options.startswith('hb'):
+    top_block_sptr tb;
+% endif
+	${class_name}(${param_str});
 	~${class_name}();
 
 % for var in parameters + variables:

core/generator/cpp_top_block.py

@@ -60,6 +60,7 @@ class CppTopBlockGenerator(TopBlockGenerator):
         parameters = fg.get_parameters()
         monitors = fg.get_monitors()
         self._variable_types()
+        self._parameter_types()
 
         self.namespace = {
             'flow_graph': fg,
@@ -245,6 +246,14 @@ class CppTopBlockGenerator(TopBlockGenerator):
         for var in variables:
             var.decide_type()
 
+    def _parameter_types(self):
+        fg = self._flow_graph
+        parameters = fg.get_parameters()
+
+        for param in parameters:
+            type_translation = {'eng_float' : 'double', 'intx' : 'int', 'std' : 'std::string'};
+            param.vtype = type_translation[param.params['type'].value]
+
     def _callbacks(self):
         fg = self._flow_graph
         variables = fg.get_cpp_variables()
@@ -338,7 +347,7 @@ class CppTopBlockGenerator(TopBlockGenerator):
         for con in sorted(connections, key=by_domain_and_blocks):
             template = templates[con.type]
             code = template.render(make_port_sig=make_port_sig, source=con.source_port, sink=con.sink_port)
-            code = 'this->' + code
+            code = 'this->tb->' + code
             rendered.append(code)
 
         return rendered

core/generator/top_block.py

@@ -266,6 +266,9 @@ class TopBlockGenerator(object):
             # Remove the virtual connection
             connections.remove(connection)
 
+        for connection in virtual_sink_connections:
+            connections.remove(connection)
+
         # Bypassing blocks: Need to find all the enabled connections for the block using
         # the *connections* object rather than get_connections(). Create new connections
         # that bypass the selected block and remove the existing ones. This allows adjacent

core/schema_checker/block.py

@@ -39,6 +39,7 @@ CPP_TEMPLATES_SCHEME = expand(
     includes=list,
     declarations=str_,
     make=str_,
+    var_make=str_,
     callbacks=list,
     link=list,
     translations=dict,

core/schema_checker/domain.py

@@ -3,6 +3,7 @@ from .utils import Spec, expand, str_
 DOMAIN_CONNECTION = expand(
     type=Spec(types=list, required=True, item_scheme=None),
     connect=str_,
+    cpp_connect=str_,
 )
 
 DOMAIN_SCHEME = expand(

gui/Executor.py

@@ -79,49 +79,6 @@ class ExecFlowGraphThread(threading.Thread):
             shell=False, universal_newlines=True
         )
 
-    def _cpp_run_cmake(self):
-        """
-        Generate and compile this C++ flow graph.
-        """
-        generator = self.page.get_generator()
-
-        xterm_executable = find_executable(self.xterm_executable)
-
-        dirname = generator.file_path
-        builddir = os.path.join(dirname, 'build')
-
-        run_command_args = [ 'cmake', '..' ]
-        Messages.send_start_exec(' '.join(run_command_args))
-
-        return subprocess.Popen(
-            args=run_command_args,
-            cwd=builddir,
-            stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
-            shell=False, universal_newlines=True
-        )
-
-    def _cpp_compile(self):
-        """
-        Compile this C++ flow graph.
-        """
-        generator = self.page.get_generator()
-
-        xterm_executable = find_executable(self.xterm_executable)
-
-        dirname = generator.file_path
-        builddir = os.path.join(dirname, 'build')
-
-        run_command_args = [ 'make' ]
-        Messages.send_start_exec(' '.join(run_command_args))
-
-        return subprocess.Popen(
-            args=run_command_args,
-            cwd=builddir,
-            stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
-            shell=False, universal_newlines=True
-        )
-
-
     def _cpp_popen(self):
         """
         Execute this C++ flow graph after generating and compiling it.
@@ -129,22 +86,22 @@ class ExecFlowGraphThread(threading.Thread):
         generator = self.page.get_generator()
         run_command = generator.file_path + '/build/' + self.flow_graph.get_option('id')
 
+        dirname = generator.file_path
+        builddir = os.path.join(dirname, 'build')
+
         if os.path.isfile(run_command):
             os.remove(run_command)
 
         xterm_executable = find_executable(self.xterm_executable)
-        process = self._cpp_run_cmake()
-        process.wait()
-        process = self._cpp_compile()
-        process.wait()
 
-        run_command_args = [xterm_executable, '-e', run_command]
+        run_command_args = ['cmake .. &&', 'make && ', xterm_executable, '-e', run_command]
         Messages.send_start_exec(' '.join(run_command_args))
 
         return subprocess.Popen(
-            args=run_command_args,
+            args=' '.join(run_command_args),
+            cwd=builddir,
             stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
-            shell=False, universal_newlines=True
+            shell=True, universal_newlines=True
         )
 
     def run(self):