1 files changed, 184 insertions, 0 deletions
diff --git a/todo/gui/tasks/form/widget.py b/todo/gui/tasks/form/widget.py
new file mode 100644
index 0000000..15be21b
--- /dev/null
+++ b/todo/gui/tasks/form/widget.py
@@ -0,0 +1,184 @@
+from PyQt5 import QtWidgets, QtCore
+from typing import Optional, Tuple, List, Any
+
+from todo.model.task import Task, ValidTaskForm
+from todo.model.tag import Tag
+from todo.model import difficulty, priority
+import todo.gui.icon
+import todo.gui.tasks.form.state
+import todo.gui.tasks.duration
+import todo.gui.tags.list
+
+class TextEditSignal(QtCore.QObject):
+    _signal = QtCore.pyqtSignal(str, name = "textEdit")
+
+    def __init__(self):
+        QtCore.QObject.__init__(self)
+
+    def emit(self, text: str):
+        self._signal.emit(text)
+
+    def connect(self, f):
+        self._signal.connect(f)
+
+def widget(
+        parent: QtWidgets.QWidget,
+        action_title: str,
+        task: Task,
+        tags: List[int],
+        on_validated,
+        on_cancel):
+
+    widget = QtWidgets.QWidget(parent)
+    layout = QtWidgets.QVBoxLayout(widget)
+    widget.setLayout(layout)
+
+    grid = QtWidgets.QWidget(widget)
+    layout.addWidget(grid)
+    grid_layout = QtWidgets.QGridLayout(grid)
+    grid.setLayout(grid_layout)
+
+    init_name = task.name if task is not None else ""
+    name_input = line_edit(grid, grid_layout, 0, "Name", init_name)
+
+    init_duration = todo.gui.tasks.duration.format(task.duration) if task is not None else ""
+    duration_input = line_edit(grid, grid_layout, 1, "Duration", init_duration)
+
+    init_difficulty = task.difficulty if task is not None else difficulty.Difficulty.NORMAL
+    difficulty_input = combo_box(
+            grid,
+            grid_layout,
+            3,
+            "Difficulty",
+            [difficulty.format(d) for d in difficulty.values],
+            int(init_difficulty))
+
+    init_priority = task.priority if task is not None else priority.Priority.MIDDLE
+    priority_input = combo_box(
+            grid,
+            grid_layout,
+            4,
+            "Priority",
+            [priority.format(d) for d in priority.values],
+            int(init_priority))
+
+    (tags_list_widget, tags_signal) = tags_selection(widget, tags)
+    layout.addWidget(tags_list_widget)
+
+    init_description = task.description if task is not None else ""
+    (description_input, description_signal) = text_edit(widget, "Description", init_description)
+    layout.addWidget(description_input)
+
+    task_form_edition = todo.gui.tasks.form.state.TaskFormEdition(
+            init_name,
+            name_input.textChanged,
+            init_duration,
+            duration_input.textChanged,
+            init_difficulty,
+            difficulty_input.currentIndexChanged,
+            init_priority,
+            priority_input.currentIndexChanged,
+            tags_signal,
+            init_description,
+            description_signal)
+
+    def on_validate():
+        form = task_form_edition.get()
+        if form:
+            on_validated(form)
+
+    layout.addWidget(buttons(
+            parent = widget,
+            action_title = action_title,
+            task_form_signal = task_form_edition.signal(),
+            on_validate = on_validate,
+            on_cancel = on_cancel))
+
+    return widget
+
+def line_edit(
+        parent,
+        layout: QtWidgets.QGridLayout,
+        n: int,
+        label: str,
+        default_value: str) -> QtWidgets.QLineEdit:
+
+    label = QtWidgets.QLabel(label, parent)
+    layout.addWidget(label, n, 0)
+
+    edit = QtWidgets.QLineEdit(parent)
+    if default_value != None:
+        edit.setText(default_value)
+    layout.addWidget(edit, n, 1)
+
+    return edit
+
+def combo_box(
+        parent,
+        layout: QtWidgets.QGridLayout,
+        n: int,
+        label: str,
+        values: List[str],
+        default_value: int) -> QtWidgets.QComboBox:
+
+    label = QtWidgets.QLabel(label, parent)
+    layout.addWidget(label, n, 0)
+
+    box = QtWidgets.QComboBox(parent)
+    for value in values:
+        box.addItem(value)
+    if default_value != None:
+        box.setCurrentIndex(default_value)
+    layout.addWidget(box, n, 1)
+
+    return box
+
+def tags_selection(parent, init_tags: List[int]) -> QtWidgets.QWidget:
+    return todo.gui.tags.list.widget(parent, init_tags)
+
+def text_edit(
+        parent,
+        label: str,
+        default_value: str) -> Tuple[QtWidgets.QWidget, TextEditSignal]:
+
+    widget = QtWidgets.QWidget(parent)
+    layout = QtWidgets.QVBoxLayout(widget)
+
+    signal = TextEditSignal()
+
+    label = QtWidgets.QLabel(label, parent)
+    layout.addWidget(label)
+
+    edit = QtWidgets.QTextEdit(parent)
+    if default_value != None:
+        edit.insertPlainText(default_value)
+    layout.addWidget(edit)
+
+    edit.textChanged.connect(lambda: signal.emit(edit.toPlainText()))
+
+    return (widget, signal)
+
+def buttons(parent, action_title, task_form_signal, on_validate, on_cancel):
+    widget = QtWidgets.QWidget(parent)
+    layout = QtWidgets.QHBoxLayout(widget)
+
+    validate = QtWidgets.QPushButton(action_title, widget)
+    validate.setDisabled(True)
+    validate.setIcon(todo.gui.icon.dialog_ok(validate.style()))
+    validate.clicked.connect(on_validate);
+    layout.addWidget(validate)
+
+    def on_task_form_signal(form: Optional[ValidTaskForm]):
+        if form:
+            validate.setEnabled(True)
+        else:
+            validate.setDisabled(True)
+
+    task_form_signal.connect(on_task_form_signal)
+
+    cancel = QtWidgets.QPushButton("cancel", widget)
+    cancel.setIcon(todo.gui.icon.dialog_cancel(cancel.style()))
+    cancel.clicked.connect(on_cancel)
+    layout.addWidget(cancel)
+
+    return widget