def create_script_editor(self):
vbox = QVBoxLayout()
self.format_combo = QComboBox()
self.format_combo.addItems(known_script_formats)
self.script_editor = MyScriptEdit(self)
self.script_editor.textChanged.connect(self.on_text_changed)
self.format_combo.currentIndexChanged.connect(lambda index: self.script_editor.set_format(known_script_formats[index]))
hbox = QHBoxLayout()
hbox.addWidget(QLabel('Format: '))
hbox.addWidget(self.format_combo)
hbox.addStretch(1)
vbox.addLayout(hbox)
vbox.addWidget(self.script_editor)
w = QWidget()
w.setLayout(vbox)
self.setCentralWidget(w)
class HashmalMain(QMainWindow):
def __init__(self, app):
super(HashmalMain, self).__init__()
self.app = app
self.app.setStyleSheet(hashmal_style)
self.changes_saved = True
self.config = Config()
QtCore.QCoreApplication.setOrganizationName('mazaclub')
QtCore.QCoreApplication.setApplicationName('hashmal')
self.qt_settings = QtCore.QSettings()
active_params = self.config.get_option('chainparams', 'Bitcoin')
chainparams.set_to_preset(active_params)
self.setDockNestingEnabled(True)
# Plugin Handler loads plugins and handles their dock widgets.
self.plugin_handler = PluginHandler(self)
self.plugin_handler.load_plugins()
self.plugin_handler.do_default_layout()
# Filename of script being edited.
self.filename = ''
# The last text that we saved.
self.last_saved = ''
self.create_script_editor()
# Set up script editor font.
script_font = self.qt_settings.value('editor/font', defaultValue=QtCore.QVariant('default')).toString()
if script_font == 'default':
font = monospace_font
else:
font = QFont()
font.fromString(script_font)
self.script_editor.setFont(font)
self.create_menubar()
self.create_toolbar()
self.new_script()
self.statusBar().setVisible(True)
self.statusBar().messageChanged.connect(self.change_status_bar)
self.restoreState(self.qt_settings.value('toolLayout/default').toByteArray())
self.script_editor.setFocus()
if self.qt_settings.value('quickTipsOnStart', defaultValue=QtCore.QVariant(True)).toBool():
QtCore.QTimer.singleShot(500, self.do_quick_tips)
def sizeHint(self):
return QtCore.QSize(800, 500)
def create_menubar(self):
menubar = QMenuBar()
file_menu = menubar.addMenu('&File')
file_menu.addAction('&New', self.new_script).setShortcut(QKeySequence.New)
file_menu.addAction('Save As...', self.save_script_as).setShortcut(QKeySequence.SaveAs)
file_menu.addAction('&Open', self.open_script).setShortcut(QKeySequence.Open)
file_menu.addAction('&Save', self.save_script).setShortcut(QKeySequence.Save)
file_menu.addAction('&Quit', self.close)
# Script actions
script_menu = menubar.addMenu('&Script')
script_menu.addAction('&Evaluate', self.plugin_handler.evaluate_current_script)
script_menu.addAction('&Copy Hex', self.script_editor.copy_hex)
# Settings and tool toggling
tools_menu = menubar.addMenu('&Tools')
tools_menu.addAction('&Settings', lambda: SettingsDialog(self).exec_())
tools_menu.addAction('&Plugin Manager', lambda: PluginManager(self).exec_())
tools_menu.addSeparator()
self.plugin_handler.create_menu(tools_menu)
help_menu = menubar.addMenu('&Help')
help_menu.addAction('&About', self.do_about)
help_menu.addAction('&Quick Tips', self.do_quick_tips)
self.setMenuBar(menubar)
def show_status_message(self, msg, error=False):
self.statusBar().showMessage(msg, 3000)
if error:
self.statusBar().setProperty('hasError', True)
else:
self.statusBar().setProperty('hasError', False)
self.style().polish(self.statusBar())
def change_status_bar(self, new_msg):
# Unset hasError if an error is removed.
if not new_msg and self.statusBar().property('hasError'):
self.statusBar().setProperty('hasError', False)
self.style().polish(self.statusBar())
def on_text_changed(self):
s = str(self.script_editor.toPlainText())
saved = False
if s == self.last_saved and self.filename:
saved = True
title = ''.join(['Hashmal - ', self.filename])
if not saved:
title = ''.join([title, ' *'])
self.setWindowTitle(title)
self.changes_saved = saved
def closeEvent(self, event):
# Save layout if configured to.
if self.qt_settings.value('saveLayoutOnExit', defaultValue=QtCore.QVariant(False)).toBool():
self.qt_settings.setValue('toolLayout/default', self.saveState())
self.close_script()
event.accept()
def close_script(self):
# Confirm discarding changes if an unsaved file is open.
if (str(self.script_editor.toPlainText())
and not self.changes_saved):
result = QMessageBox.question(self, 'Save Changes',
'Do you want to save your changes to ' + self.filename + ' before closing?',
QMessageBox.Yes | QMessageBox.No)
if result == QMessageBox.Yes:
self.save_script()
self.filename = ''
self.changes_saved = True
self.script_editor.clear()
def new_script(self, filename=''):
self.close_script()
if not filename:
base_name = ''.join(['Untitled-', str(time.time()), '.coinscript'])
filename = os.path.expanduser(base_name)
self.load_script(filename)
def save_script(self):
filename = self.filename
if not filename:
filename = str(QFileDialog.getSaveFileName(self, 'Save script', filter=script_file_filter))
if not filename: return
if not filename.endswith('.coinscript'):
filename += '.coinscript'
self.filename = filename
with open(self.filename, 'w') as file:
file.write(str(self.script_editor.toPlainText()))
self.last_saved = str(self.script_editor.toPlainText())
self.on_text_changed()
def save_script_as(self):
filename = str(QFileDialog.getSaveFileName(self, 'Save script as', filter=script_file_filter))
if not filename: return
if not filename.endswith('.coinscript'):
filename += '.coinscript'
self.filename = filename
self.save_script()
def open_script(self):
filename = str(QFileDialog.getOpenFileName(self, 'Open script', '.', filter=script_file_filter))
if not filename:
return
self.close_script()
self.load_script(filename)
def load_script(self, filename):
if os.path.exists(filename):
self.filename = filename
with open(self.filename,'r') as file:
self.script_editor.setPlainText(file.read())
else:
self.script_editor.clear()
self.last_saved = str(self.script_editor.toPlainText())
self.on_text_changed()
def create_script_editor(self):
vbox = QVBoxLayout()
self.format_combo = QComboBox()
self.format_combo.addItems(known_script_formats)
self.script_editor = MyScriptEdit(self)
self.script_editor.textChanged.connect(self.on_text_changed)
self.format_combo.currentIndexChanged.connect(lambda index: self.script_editor.set_format(known_script_formats[index]))
hbox = QHBoxLayout()
hbox.addWidget(QLabel('Format: '))
hbox.addWidget(self.format_combo)
hbox.addStretch(1)
vbox.addLayout(hbox)
vbox.addWidget(self.script_editor)
w = QWidget()
w.setLayout(vbox)
self.setCentralWidget(w)
def create_toolbar(self):
toolbar = QToolBar('Toolbar')
toolbar.setObjectName('Toolbar')
params_combo = ChainparamsComboBox(self.config)
params_form = QFormLayout()
params_form.setContentsMargins(0, 0, 0, 0)
params_form.addRow('Chainparams:', params_combo)
params_selector = QWidget()
params_selector.setLayout(params_form)
params_selector.setToolTip('Change chainparams preset')
toolbar.addWidget(params_selector)
self.addToolBar(toolbar)
def do_about(self):
d = QDialog(self)
vbox = QVBoxLayout()
about_label = QLabel()
about_label.setWordWrap(True)
txt = []
txt.append(' '.join([
'Hashmal is an IDE for Bitcoin transaction scripts.',
'Its purpose is to make it easier to write, evaluate, and learn about transaction scripts.'
]))
txt.append('Hashmal is intended for cryptocurrency developers and power users.')
txt.append('Use at own risk!')
txt = '\n\n'.join(txt)
about_label.setText(txt)
close_button = QPushButton('Close')
close_button.clicked.connect(d.close)
btn_box = floated_buttons([close_button])
vbox.addWidget(about_label)
vbox.addLayout(btn_box)
d.setLayout(vbox)
d.setWindowTitle('About Hashmal')
d.exec_()
def do_quick_tips(self):
QuickTips(self).exec_()