moves gui_hint logic into parsing function, removes GuiHint class from Param.py, cleans up gr-qtgui blocks <make> functions

author: Spencer Ross <brashendeavours@gmail.com> 2017-08-19 23:16:38 -0400
committer: Spencer Ross <brashendeavours@gmail.com> 2017-08-19 23:16:38 -0400
commit: 2b35d7086f9585bb18fff3456b9d37d027d0f901 (patch)
tree: 5ebe6f2fae6aa4bae6d5fc24527d4551d6fa61a1
parent: b2a294302e5cd72ec41b5471f3f8dc5da9abff66 (diff)
20 files changed, 154 insertions, 135 deletions
diff --git a/gr-qtgui/grc/qtgui_ber_sink_b.xml b/gr-qtgui/grc/qtgui_ber_sink_b.xml
index da3fc6ebf8..851502a774 100644
--- a/gr-qtgui/grc/qtgui_ber_sink_b.xml
+++ b/gr-qtgui/grc/qtgui_ber_sink_b.xml
@@ -47,7 +47,7 @@ for i in xrange($num_curves):
     self.$(id).set_line_alpha(i, alphas[i])
 
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
 
   <param>
     <name>esno</name>
diff --git a/gr-qtgui/grc/qtgui_check_box.xml b/gr-qtgui/grc/qtgui_check_box.xml
index 67c8848a22..a02c83e3cf 100644
--- a/gr-qtgui/grc/qtgui_check_box.xml
+++ b/gr-qtgui/grc/qtgui_check_box.xml
@@ -20,7 +20,8 @@ self._$(id)_choices_inv = dict((v,k) for k,v in self._$(id)_choices.iteritems())
 self._$(id)_callback = lambda i: Qt.QMetaObject.invokeMethod($(win), "setChecked", Qt.Q_ARG("bool", self._$(id)_choices_inv[i]))
 self._$(id)_callback(self.$id)
 $(win).stateChanged.connect(lambda i: self.set_$(id)(self._$(id)_choices[bool(i)]))
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
 	<callback>self.set_$(id)($value)</callback>
 	<callback>self._$(id)_callback($id)</callback>
 	<param>
diff --git a/gr-qtgui/grc/qtgui_chooser.xml b/gr-qtgui/grc/qtgui_chooser.xml
index f018354dd4..b91566ae74 100644
--- a/gr-qtgui/grc/qtgui_chooser.xml
+++ b/gr-qtgui/grc/qtgui_chooser.xml
@@ -86,7 +86,8 @@ self._$(id)_callback(self.$id)
 self._$(id)_button_group.buttonClicked[int].connect(
 	lambda i: self.set_$(id)(self._$(id)_options[i]))
 #end if
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
 	<callback>self.set_$(id)($value)</callback>
 	<callback>self._$(id)_callback($id)</callback>
 	<param>
diff --git a/gr-qtgui/grc/qtgui_const_sink_x.xml b/gr-qtgui/grc/qtgui_const_sink_x.xml
index 755f12f964..6bf31d5190 100644
--- a/gr-qtgui/grc/qtgui_const_sink_x.xml
+++ b/gr-qtgui/grc/qtgui_const_sink_x.xml
@@ -51,7 +51,8 @@ for i in xrange(#if $type.t == 'message' then 1 else $nconnections#):
     self.$(id).set_line_alpha(i, alphas[i])
 
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
   <callback>set_resize($width, $height)</callback>
   <callback>set_update_time($update_time)</callback>
   <callback>set_title($which, $title)</callback>
diff --git a/gr-qtgui/grc/qtgui_edit_box_msg.xml b/gr-qtgui/grc/qtgui_edit_box_msg.xml
index c7c758a612..276cfe9801 100644
--- a/gr-qtgui/grc/qtgui_edit_box_msg.xml
+++ b/gr-qtgui/grc/qtgui_edit_box_msg.xml
@@ -13,7 +13,7 @@
   <make>#set $win = 'self._%s_win'%$id
 qtgui.edit_box_msg($(type.t), $value, $label, $is_pair, $is_static, $key)
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
 
   <param>
     <name>Type</name>
diff --git a/gr-qtgui/grc/qtgui_entry.xml b/gr-qtgui/grc/qtgui_entry.xml
index cce2edb4b2..ab35aec858 100644
--- a/gr-qtgui/grc/qtgui_entry.xml
+++ b/gr-qtgui/grc/qtgui_entry.xml
@@ -21,9 +21,12 @@ self._$(id)_line_edit = Qt.QLineEdit(str(self.$id))
 self._$(id)_tool_bar.addWidget(self._$(id)_line_edit)
 self._$(id)_line_edit.returnPressed.connect(
 	lambda: self.set_$(id)($(type.conv)(str(self._$(id)_line_edit.text().toAscii()))))
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
 	<callback>self.set_$(id)($value)</callback>
+
 	<callback>Qt.QMetaObject.invokeMethod(self._$(id)_line_edit, "setText", Qt.Q_ARG("QString", $(type.str)($id)))</callback>
+
 	<param>
 		<name>Label</name>
 		<key>label</key>
diff --git a/gr-qtgui/grc/qtgui_freq_sink_x.xml b/gr-qtgui/grc/qtgui_freq_sink_x.xml
index 009a184327..5c6595cb33 100644
--- a/gr-qtgui/grc/qtgui_freq_sink_x.xml
+++ b/gr-qtgui/grc/qtgui_freq_sink_x.xml
@@ -54,7 +54,8 @@ for i in xrange(#if $type.t == 'message' then 1 else $nconnections#):
     self.$(id).set_line_alpha(i, alphas[i])
 
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
   <callback>set_frequency_range($fc, $bw)</callback>
   <callback>set_update_time($update_time)</callback>
   <callback>set_title($which, $title)</callback>
diff --git a/gr-qtgui/grc/qtgui_histogram_sink_x.xml b/gr-qtgui/grc/qtgui_histogram_sink_x.xml
index a789d2e4fa..8bf9662b74 100644
--- a/gr-qtgui/grc/qtgui_histogram_sink_x.xml
+++ b/gr-qtgui/grc/qtgui_histogram_sink_x.xml
@@ -53,8 +53,8 @@ for i in xrange(#if $type.t == 'message' then 1 else $nconnections#):
     self.$(id).set_line_alpha(i, alphas[i])
 
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))
-  </make>
+$(gui_hint() % $win)</make>
+
   <callback>set_update_time($update_time)</callback>
   <callback>set_title($which, $title)</callback>
   <callback>set_color($which, $color)</callback>
diff --git a/gr-qtgui/grc/qtgui_label.xml b/gr-qtgui/grc/qtgui_label.xml
index d67f3d7500..90b77fa968 100644
--- a/gr-qtgui/grc/qtgui_label.xml
+++ b/gr-qtgui/grc/qtgui_label.xml
@@ -26,8 +26,7 @@ else:
 $(win).addWidget(Qt.QLabel($label+": "))
 self._$(id)_label = Qt.QLabel(str(self._$(id)_formatter(self.$id)))
 self._$(id)_tool_bar.addWidget(self._$(id)_label)
-$(gui_hint()($win))
-  </make>
+$(gui_hint() % $win)</make>
 
   <callback>self.set_$(id)(self._$(id)_formatter($value))</callback>
   <callback>Qt.QMetaObject.invokeMethod(self._$(id)_label, "setText", Qt.Q_ARG("QString", $id))</callback>
diff --git a/gr-qtgui/grc/qtgui_number_sink.xml b/gr-qtgui/grc/qtgui_number_sink.xml
index d10b7325c0..264baae667 100644
--- a/gr-qtgui/grc/qtgui_number_sink.xml
+++ b/gr-qtgui/grc/qtgui_number_sink.xml
@@ -41,7 +41,8 @@ for i in xrange($nconnections):
 
 self.$(id).enable_autoscale($autoscale)
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
   <callback>set_update_time($update_time)</callback>
 
   <param_tab_order>
diff --git a/gr-qtgui/grc/qtgui_push_button.xml b/gr-qtgui/grc/qtgui_push_button.xml
index a535bb6473..e4f598e725 100644
--- a/gr-qtgui/grc/qtgui_push_button.xml
+++ b/gr-qtgui/grc/qtgui_push_button.xml
@@ -18,8 +18,10 @@ $win = Qt.QPushButton($label)
 self._$(id)_choices = {'Pressed': $pressed, 'Released': $released}
 $(win).pressed.connect(lambda: self.set_$(id)(self._$(id)_choices['Pressed']))
 $(win).released.connect(lambda: self.set_$(id)(self._$(id)_choices['Released']))
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
 	<callback>self.set_$(id)($value)</callback>
+
 	<param>
 		<name>Label</name>
 		<key>label</key>
diff --git a/gr-qtgui/grc/qtgui_range.xml b/gr-qtgui/grc/qtgui_range.xml
index 71b614cc5e..0999311a0b 100644
--- a/gr-qtgui/grc/qtgui_range.xml
+++ b/gr-qtgui/grc/qtgui_range.xml
@@ -17,7 +17,8 @@
 #end if
 $(range) = Range($start, $stop, $step, $value, $min_len)
 $(win) = RangeWidget($range, self.set_$(id), $label, "$widget", $rangeType)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
   <callback>self.set_$(id)($value)</callback>
 
   <param>
diff --git a/gr-qtgui/grc/qtgui_sink_x.xml b/gr-qtgui/grc/qtgui_sink_x.xml
index 7488ea59d8..4dbf0e6375 100644
--- a/gr-qtgui/grc/qtgui_sink_x.xml
+++ b/gr-qtgui/grc/qtgui_sink_x.xml
@@ -25,7 +25,7 @@ qtgui.$(type.fcn)(
 )
 self.$(id).set_update_time(1.0/$rate)
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))
+$(gui_hint() % $win)
 
 self.$(id).enable_rf_freq($showrf)
 
diff --git a/gr-qtgui/grc/qtgui_tab_widget.xml b/gr-qtgui/grc/qtgui_tab_widget.xml
index 1bbadc8e51..fc8ad0553a 100644
--- a/gr-qtgui/grc/qtgui_tab_widget.xml
+++ b/gr-qtgui/grc/qtgui_tab_widget.xml
@@ -21,7 +21,8 @@ self.$(id)_grid_layout_$(i) = Qt.QGridLayout()
 self.$(id)_layout_$(i).addLayout(self.$(id)_grid_layout_$(i))
 $(win).addTab(self.$(id)_widget_$(i), $label)
 #end for
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
 	<param>
 		<name>Num Tabs</name>
 		<key>num_tabs</key>
diff --git a/gr-qtgui/grc/qtgui_time_raster_x.xml b/gr-qtgui/grc/qtgui_time_raster_x.xml
index 0359dc3b71..2d2f3cbff4 100644
--- a/gr-qtgui/grc/qtgui_time_raster_x.xml
+++ b/gr-qtgui/grc/qtgui_time_raster_x.xml
@@ -41,7 +41,8 @@ for i in xrange(#if $type.t == 'message' then 1 else $nconnections#):
     self.$(id).set_line_alpha(i, alphas[i])
 
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
   <callback>set_num_rows($nrows)</callback>
   <callback>set_num_cols($ncols)</callback>
   <callback>set_multiplier($mult)</callback>
diff --git a/gr-qtgui/grc/qtgui_time_sink_x.xml b/gr-qtgui/grc/qtgui_time_sink_x.xml
index fbee4ca483..726e9fdf34 100644
--- a/gr-qtgui/grc/qtgui_time_sink_x.xml
+++ b/gr-qtgui/grc/qtgui_time_sink_x.xml
@@ -74,7 +74,8 @@ for i in xrange(#if $type.t == 'message' then 1 else $nconnections#):
 #end if
 
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
   <callback>set_time_domain_axis($min, $max)</callback>
   <callback>set_update_time($update_time)</callback>
   <callback>set_title($which, $title)</callback>
diff --git a/gr-qtgui/grc/qtgui_vector_sink_f.xml b/gr-qtgui/grc/qtgui_vector_sink_f.xml
index 9f40d57729..1c17b8256a 100644
--- a/gr-qtgui/grc/qtgui_vector_sink_f.xml
+++ b/gr-qtgui/grc/qtgui_vector_sink_f.xml
@@ -46,7 +46,8 @@ for i in xrange($nconnections):
     self.$(id).set_line_alpha(i, alphas[i])
 
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
   <callback>set_update_time($update_time)</callback>
   <callback>set_title($title)</callback>
   <callback>set_color($which, $color)</callback>
diff --git a/gr-qtgui/grc/qtgui_waterfall_sink_x.xml b/gr-qtgui/grc/qtgui_waterfall_sink_x.xml
index cdecd5cce1..206318e30d 100644
--- a/gr-qtgui/grc/qtgui_waterfall_sink_x.xml
+++ b/gr-qtgui/grc/qtgui_waterfall_sink_x.xml
@@ -47,7 +47,8 @@ for i in xrange(#if $type.t == 'message' then 1 else $nconnections#):
 self.$(id).set_intensity_range($int_min, $int_max)
 
 self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
-$(gui_hint()($win))</make>
+$(gui_hint() % $win)</make>
+
   <callback>set_frequency_range($fc, $bw)</callback>
   <callback>set_update_time($update_time)</callback>
   <callback>set_title($which, $title)</callback>
diff --git a/grc/core/Param.py b/grc/core/Param.py
index 6c2c83fda8..00336737b0 100644
--- a/grc/core/Param.py
+++ b/grc/core/Param.py
@@ -533,122 +533,10 @@ class Param(Element):
         # GUI Position/Hint
         #########################
         elif t == 'gui_hint':
-        
-            # FIXME: Move replace(...) into the make template of the qtgui blocks
-            # Return a string here
-            class GuiHint(object):
-                def __init__(self, ws):
-                    self._ws = ws
- 
-                def __call__(self, w):
-                    return (self._ws.replace('addWidget', 'addLayout') if 'layout' in w else self._ws) % w
- 
-                def __str__(self):
-                    return self._ws
-                    
             if (self.get_parent().get_state() == Constants.BLOCK_DISABLED):
-                return GuiHint('')
-                                    
-            # Parsing
-            if ':' in v:                
-                tab, pos = v.split(':')
-            elif '@' in v:              
-                tab, pos = v, ''        
-            else:
-                tab, pos = '', v        
- 
-            if '@' in tab:
-                tab, index = tab.split('@')
+                return ''
             else:
-                index = '0'
-               
-            position_set = bool(pos)
-            tab_set = bool(tab)
-            
-            # Validation
-            if position_set:
-                e = self.get_parent().get_parent().evaluate(pos)
-               
-                if len(e) == 2:
-                    e = e + (1,1)    
-                row, col, row_span, col_span = e
-               
-                if not isinstance(e, (list, tuple)) or not (len(e) == 2 or len(e) == 4) or not all([isinstance(ei, int) for ei in e]):
-                    raise Exception('Invalid GUI Hint entered: {e!s:s} (Must be a list of {{2,4}} non-negative integers).'.format(e=e))
- 
-                if (row < 0) or (col < 0):
-                    raise Exception('Invalid GUI Hint entered: {e!s:s} (non-negative integers only).'.format(e=e))
-                   
-                if (row_span < 1) or (col_span < 1):
-                    raise Exception('Invalid GUI Hint entered: {e!s:s} (positive row/column span required).'.format(e=e))
-
-            if tab_set:
-                enabled_blocks = self.get_parent().get_parent().get_enabled_blocks()
-                tab_list = filter(lambda block: str(block.get_key()) == 'qtgui_tab_widget', enabled_blocks)
-                tab_match = filter(lambda t: t.get_id() == tab, tab_list) 
-                if not tab_match:
-                    raise Exception('Invalid tab name entered: {tab!s:s} (Tab name not found).'.format(tab=tab))
-                
-                tab_index_size = tab_match[0].get_param('num_tabs').get_value()
-                if index >= tab_index_size:
-                    raise Exception('Invalid tab index entered: {tab!s:s}@{index!s:s} (Index out of range).'.format(tab=tab,
-                                                                                                                    index=index))   
-                        
-            # Code Generation        
-            if position_set and tab_set:
-                widget_str = 'self.{tab:s}_grid_layout_{index:s}.addWidget({widget:s}, {e!s:s})'
-                widget_str += '\n[self.{tab:s}_grid_layout_{index:s}.setRowStretch(r,1) for r in range({fRow:d},{lRow:d})]'
-                widget_str += '\n[self.{tab:s}_grid_layout_{index:s}.setColumnStretch(c,1) for c in range({fCol:d},{lCol:d})]'
-                widget_str = widget_str.format(tab=tab,
-                                               index=index,
-                                               widget='%s',
-                                               e=str(e)[1:-1],
-                                               fRow=row,
-                                               lRow=(row + row_span),
-                                               fCol=col,
-                                               lCol=(col + col_span))
- 
-            elif position_set and not tab_set:
-                widget_str = 'self.top_grid_layout.addWidget({widget:s}, {e!s:s})'
-                widget_str += '\n[self.top_grid_layout.setRowStretch(r,1) for r in range({fRow:d},{lRow:d})]'
-                widget_str += '\n[self.top_grid_layout.setColumnStretch(c,1) for c in range({fCol:d},{lCol:d})]'
-                widget_str = widget_str.format(widget='%s',
-                                               e=str(e)[1:-1],
-                                               fRow=row,
-                                               lRow=(row + row_span),
-                                               fCol=col,
-                                               lCol=(col + col_span))
-               
-            elif not position_set and tab_set:
-                widget_str = 'self.{tab:s}_layout_{index:s}.addWidget({widget:s})'
-                widget_str = widget_str.format(tab=tab,
-                                               index=index,
-                                               widget='%s')
-                 
-            elif not position_set and not tab_set:
-                widget_str = 'self.top_layout.addWidget({widget:s})'
-                widget_str = widget_str.format(widget='%s')
-
-            # Collision Detection
-            if position_set:
-                if tab_set:
-                    my_parent = '{tab:s}@{index:s}'.format(tab=tab,
-                                                           index=index)
-                else:
-                    my_parent = 'main'                            
-                # Calculate hostage cells
-                for r in range(row, row + row_span):
-                    for c in range(col, col + col_span):
-                        self._hostage_cells.append((my_parent, (r, c)))
-                # Avoid collisions
-                params = filter(lambda p: p is not self, self.get_all_params('gui_hint'))
-                for param in params:
-                    for parent, cell in param._hostage_cells:
-                        if (parent, cell) in self._hostage_cells:
-                            raise Exception('Another graphical element is using parent "{parent!s:s}", cell "{cell!s:s}".'.format(parent=parent,
-                                                                                                                                  cell=cell))
- 
-            return GuiHint(widget_str)
+                return self.parse_gui_hint(v)
         #########################
         # Grid Position Type
         #########################
@@ -837,3 +725,119 @@ class Param(Element):
         n['key'] = self.get_key()
         n['value'] = self.get_value()
         return n
+
+    ##############################################
+    # GUI Hint
+    ##############################################
+    def parse_gui_hint(self, v):
+        """
+        Parse/validate gui hint value.
+
+        Args:
+            v: gui_hint string from a block's 'gui_hint' param
+
+        Returns:
+            string of python code for positioning GUI elements in pyQT
+        """
+
+        # Parsing
+        if ':' in v:
+            tab, pos = v.split(':')
+        elif ',' in v:
+            tab, pos = '', v
+        else:
+            tab, pos = v, ''
+
+        if '@' in tab:
+            tab, index = tab.split('@')
+        else:
+            index = '0'
+        index = int(index)
+
+        position_set = bool(pos)
+        tab_set = bool(tab)
+
+        # Validation
+        if position_set:
+            e = self.get_parent().get_parent().evaluate(pos)
+
+            if len(e) == 2:
+                e = e + (1,1)
+            row, col, row_span, col_span = e
+
+            if not isinstance(e, (list, tuple)) or not (len(e) == 2 or len(e) == 4) or not all([isinstance(ei, int) for ei in e]):
+                raise Exception('Invalid GUI Hint entered: {e!s:s} (Must be a list of {{2,4}} non-negative integers).'.format(e=e))
+
+            if (row < 0) or (col < 0):
+                raise Exception('Invalid GUI Hint entered: {e!s:s} (non-negative integers only).'.format(e=e))
+
+            if (row_span < 1) or (col_span < 1):
+                raise Exception('Invalid GUI Hint entered: {e!s:s} (positive row/column span required).'.format(e=e))
+
+        if tab_set:
+            enabled_blocks = self.get_parent().get_parent().get_enabled_blocks()
+            tab_list = filter(lambda block: str(block.get_key()) == 'qtgui_tab_widget', enabled_blocks)
+            tab_match = filter(lambda t: t.get_id() == tab, tab_list)
+            if not tab_match:
+                raise Exception('Invalid tab name entered: {tab!s:s} (Tab name not found).'.format(tab=tab))
+
+            tab_index_size = int(tab_match[0].get_param('num_tabs').get_value())
+            if index >= tab_index_size:
+                raise Exception('Invalid tab index entered: {tab!s:s}@{index!s:s} (Index out of range).'.format(tab=tab,
+                                                                                                                index=index))
+
+        # Code Generation
+        if position_set and tab_set:
+            widget_str = 'self.{tab:s}_grid_layout_{index!s:s}.addWidget({widget:s}, {e!s:s})'
+            widget_str += '\n[self.{tab:s}_grid_layout_{index!s:s}.setRowStretch(r,1) for r in range({fRow:d},{lRow:d})]'
+            widget_str += '\n[self.{tab:s}_grid_layout_{index!s:s}.setColumnStretch(c,1) for c in range({fCol:d},{lCol:d})]'
+            widget_str = widget_str.format(tab=tab,
+                                            index=index,
+                                            widget='%s',
+                                            e=str(e)[1:-1],
+                                            fRow=row,
+                                            lRow=(row + row_span),
+                                            fCol=col,
+                                            lCol=(col + col_span))
+
+        elif position_set and not tab_set:
+            widget_str = 'self.top_grid_layout.addWidget({widget:s}, {e!s:s})'
+            widget_str += '\n[self.top_grid_layout.setRowStretch(r,1) for r in range({fRow:d},{lRow:d})]'
+            widget_str += '\n[self.top_grid_layout.setColumnStretch(c,1) for c in range({fCol:d},{lCol:d})]'
+            widget_str = widget_str.format(widget='%s',
+                                            e=str(e)[1:-1],
+                                            fRow=row,
+                                            lRow=(row + row_span),
+                                            fCol=col,
+                                            lCol=(col + col_span))
+
+        elif not position_set and tab_set:
+            widget_str = 'self.{tab:s}_layout_{index!s:s}.addWidget({widget:s})'
+            widget_str = widget_str.format(tab=tab,
+                                            index=index,
+                                            widget='%s')
+
+        elif not position_set and not tab_set:
+            widget_str = 'self.top_layout.addWidget({widget:s})'
+            widget_str = widget_str.format(widget='%s')
+
+        # Collision Detection
+        if position_set:
+            if tab_set:
+                my_parent = '{tab:s}@{index!s:s}'.format(tab=tab,
+                                                        index=index)
+            else:
+                my_parent = 'main'
+            # Calculate hostage cells
+            for r in range(row, row + row_span):
+                for c in range(col, col + col_span):
+                    self._hostage_cells.append((my_parent, (r, c)))
+            # Avoid collisions
+            params = filter(lambda p: p is not self, self.get_all_params('gui_hint'))
+            for param in params:
+                for parent, cell in param._hostage_cells:
+                    if (parent, cell) in self._hostage_cells:
+                        raise Exception('Another graphical element is using parent "{parent!s:s}", cell "{cell!s:s}".'.format(parent=parent,
+                                                                                                                                cell=cell))
+
+        return widget_str
+\ No newline at end of file
diff --git a/grc/core/generator/Generator.py b/grc/core/generator/Generator.py
index 8c1cd9a6b0..2e639d4985 100644
--- a/grc/core/generator/Generator.py
+++ b/grc/core/generator/Generator.py
@@ -398,6 +398,6 @@ class QtHierBlockGenerator(HierBlockGenerator):
 
         block_n['make'] += (
             "\n#set $win = 'self.%s' % $id"
-            "\n${gui_hint()($win)}"
+            "\n${gui_hint() % $win}"
         )
         return n
author	Spencer Ross <brashendeavours@gmail.com>	2017-08-19 23:16:38 -0400
committer	Spencer Ross <brashendeavours@gmail.com>	2017-08-19 23:16:38 -0400
commit	2b35d7086f9585bb18fff3456b9d37d027d0f901 (patch)
tree	5ebe6f2fae6aa4bae6d5fc24527d4551d6fa61a1
parent	b2a294302e5cd72ec41b5471f3f8dc5da9abff66 (diff)