[libcamera-devel] [PATCH v5 3/3] qcam: Add --script to load capture script

[Utkarsh Tiwari]

Add --script as an individual option to load capture scripts.
Load the capture script before starting the capture.

If an invalid capture script has been given, display a QMessageBox and
print it on the console informing that the script is invalid. Do not
start the capture.

Signed-off-by: Utkarsh Tiwari <utkarsh02t at gmail.com>
Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
---
 Changes from v4
	- Now when we have an invalid script we quit and don't start the
	  capture.
 src/qcam/main.cpp        |  3 +++
 src/qcam/main_window.cpp | 20 ++++++++++++++++++++
 src/qcam/main_window.h   |  1 +
 3 files changed, 24 insertions(+)

diff --git a/src/qcam/main.cpp b/src/qcam/main.cpp
index d3f01a85..91166be5 100644
--- a/src/qcam/main.cpp
+++ b/src/qcam/main.cpp
@@ -43,6 +43,9 @@ OptionsParser::Options parseOptions(int argc, char *argv[])
 			 "Set configuration of a camera stream", "stream", true);
 	parser.addOption(OptVerbose, OptionNone,
 			 "Print verbose log messages", "verbose");
+	parser.addOption(OptCaptureScript, OptionString,
+			 "Load a capture session configuration script from a file",
+			 "script", ArgumentRequired, "script");
 
 	OptionsParser::Options options = parser.parse(argc, argv);
 	if (options.isSet(OptHelp))
diff --git a/src/qcam/main_window.cpp b/src/qcam/main_window.cpp
index 9dc96fbb..7b2bc84b 100644
--- a/src/qcam/main_window.cpp
+++ b/src/qcam/main_window.cpp
@@ -152,6 +152,26 @@ MainWindow::MainWindow(CameraManager *cm, const OptionsParser::Options &options)
 		return;
 	}
 
+	if (options_.isSet(OptCaptureScript)) {
+		std::string scriptName = options_[OptCaptureScript].toString();
+		script_ = std::make_unique<CaptureScript>(camera_, scriptName);
+		if (!script_->valid()) {
+			QMessageBox::critical(this, "Invalid Script",
+					      "Couldn't load the capture script");
+			qInfo() << "Invalid Capture Script";
+
+			script_.reset();
+
+			/* Do not start capture if invalid script. */
+			quit();
+			return;
+		}
+
+		/* Show stopping availability. */
+		scriptExecAction_->setIcon(QIcon(":x-square.svg"));
+		scriptExecAction_->setText("Stop Script execution");
+	}
+
 	startStopAction_->setChecked(true);
 }
 
diff --git a/src/qcam/main_window.h b/src/qcam/main_window.h
index eb398c1d..59e50b5e 100644
--- a/src/qcam/main_window.h
+++ b/src/qcam/main_window.h
@@ -43,6 +43,7 @@ enum {
 	OptRenderer = 'r',
 	OptStream = 's',
 	OptVerbose = 'v',
+	OptCaptureScript = 256,
 };
 
 class MainWindow : public QMainWindow
-- 
2.25.1