Array editor: add "Paste" feature to paste data from clipboard

Fix #87

Author: PierreRaybaut

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 💥 New features:
 
+* [Issue #87](https://github.com/PlotPyStack/guidata/issues/87) - Array editor: add an option to paste data (Ctrl+V)
 * [Issue #85](https://github.com/PlotPyStack/guidata/issues/85) - Array editor: add a button to export data as CSV
 * [Issue #86](https://github.com/PlotPyStack/guidata/issues/86) - Array editor: add "Copy all" feature for copying array and headers to clipboard
 

guidata/locale/fr/LC_MESSAGES/guidata.po

@@ -6,7 +6,7 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
-"POT-Creation-Date: 2025-04-26 10:25+0200\n"
+"POT-Creation-Date: 2025-04-26 11:12+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <[email protected]>\n"
@@ -270,6 +270,9 @@ msgstr "Suppression de colonne(s)"
 msgid "Copy"
 msgstr "Copier"
 
+msgid "Paste"
+msgstr "Coller"
+
 msgid "About..."
 msgstr "A propos..."
 
@@ -291,6 +294,9 @@ msgstr "Avertissement"
 msgid "It was not possible to copy values for this array"
 msgstr "Impossible de copier les valeurs pour ce tableau"
 
+msgid "It was not possible to paste values for this array"
+msgstr "Impossible de coller les valeurs pour ce tableau"
+
 msgid "Format"
 msgstr "Format"
 
@@ -379,9 +385,6 @@ msgstr ""
 msgid "Resize rows to contents"
 msgstr "Ajuster les colonnes au contenu"
 
-msgid "Paste"
-msgstr "Coller"
-
 msgid "Edit"
 msgstr "Modifier"
 

guidata/widgets/arrayeditor/editorwidget.py

@@ -185,6 +185,7 @@ def __init__(
             total_width += self.columnWidth(k)
         self.viewport().resize(min(total_width, 1024), self.height())
         QShortcut(QKeySequence(QKeySequence.Copy), self, self.copy)
+        QShortcut(QKeySequence(QKeySequence.Paste), self, self.paste)
         self.horizontalScrollBar().valueChanged.connect(
             lambda val: self.load_more_data(val, columns=True)
         )
@@ -409,6 +410,15 @@ def setup_cell_menu(self) -> QMenu:
             triggered=self.copy,
             context=Qt.ShortcutContext.WidgetShortcut,
         )
+        self.paste_action = create_action(
+            self,
+            _("Paste"),
+            shortcut=keybinding("Paste"),
+            icon=get_icon("editpaste.png"),
+            triggered=self.paste,
+            context=Qt.ShortcutContext.WidgetShortcut,
+        )
+        self.paste_action.setDisabled(self.model().readonly)
         about_action = create_action(
             self,
             _("About..."),
@@ -442,6 +452,7 @@ def setup_cell_menu(self) -> QMenu:
             )
             actions = (
                 self.copy_action,
+                self.paste_action,
                 None,
                 insert_row_action,
                 insert_col_action,
@@ -454,6 +465,7 @@ def setup_cell_menu(self) -> QMenu:
         else:
             actions = (
                 self.copy_action,
+                self.paste_action,
                 None,
                 about_action,
             )
@@ -587,6 +599,47 @@ def copy(self) -> None:
         clipboard = QApplication.clipboard()
         clipboard.setText(cliptxt)
 
+    @Slot()
+    def paste(self) -> None:
+        """Paste text from clipboard"""
+        cliptxt = QApplication.clipboard().text()
+        if not cliptxt:
+            return
+        try:
+            data = np.genfromtxt(io.StringIO(cliptxt), delimiter="\t")
+        except ValueError:
+            data = np.array([])
+        if data.size == 0:
+            QMessageBox.warning(
+                self,
+                _("Warning"),
+                _("It was not possible to paste values for this array"),
+            )
+            return
+
+        model = self.model()
+
+        # Determine where to paste
+        start_row = self.currentIndex().row()
+        start_col = self.currentIndex().column()
+
+        # Iterate and paste each value
+        data = np.array(data, dtype=model.get_array().dtype)
+        if data.ndim in (0, 1):
+            data = data.reshape((-1, 1))
+        for i in range(data.shape[0]):
+            for j in range(data.shape[1]):
+                if (start_row + i < model.total_rows) and (
+                    start_col + j < model.total_cols
+                ):
+                    idx = model.index(start_row + i, start_col + j)
+                    model.setData(idx, str(data[i, j]))
+
+        model.dataChanged.emit(
+            model.index(start_row, start_col),
+            model.index(start_row + data.shape[0] - 1, start_col + data.shape[1] - 1),
+        )
+
 
 class BaseArrayEditorWidget(QWidget):
     """Base ArrayEditdorWidget class. Used to wrap handle n-dimensional normal Numpy's