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VisualBuilder: Support loading a saved form from JSON.

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The form to load is specified on the command line, e.g "vb test.frm".
This commit is contained in:
Andreas Kling 2019-06-29 12:06:46 +02:00
parent 57a589a6e7
commit b729b5fc64
5 changed files with 72 additions and 17 deletions
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52
DevTools/VisualBuilder/VBForm.cpp
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@ -1,6 +1,7 @@
#include "VBForm.h"
#include "VBProperty.h"
#include "VBWidget.h"
#include "VBWidgetRegistry.h"
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <LibCore/CFile.h>
@ -24,22 +25,6 @@ VBForm::VBForm(const String& name, GWidget* parent)
set_background_color(Color::LightGray);
set_greedy_for_hits(true);
auto box1 = VBWidget::create(VBWidgetType::GSpinBox, *this);
box1->set_rect({ 10, 10, 81, 21 });
m_widgets.append(move(box1));
auto box2 = VBWidget::create(VBWidgetType::GTextEditor, *this);
box2->set_rect({ 100, 100, 161, 161 });
m_widgets.append(move(box2));
auto button1 = VBWidget::create(VBWidgetType::GButton, *this);
button1->set_rect({ 200, 50, 81, 21 });
m_widgets.append(move(button1));
auto groupbox1 = VBWidget::create(VBWidgetType::GGroupBox, *this);
groupbox1->set_rect({ 300, 150, 161, 51 });
m_widgets.append(move(groupbox1));
m_context_menu = make<GMenu>("Context menu");
m_context_menu->add_action(GAction::create("Move to front", [this](auto&) {
if (auto* widget = single_selected_widget())
@ -305,6 +290,41 @@ void VBForm::mousemove_event(GMouseEvent& event)
}
}
void VBForm::load_from_file(const String& path)
{
CFile file(path);
if (!file.open(CIODevice::ReadOnly)) {
GMessageBox::show(String::format("Could not open '%s' for reading", path.characters()), "Error", GMessageBox::Type::Error, window());
return;
}
auto file_contents = file.read_all();
auto form_json = JsonValue::from_string(file_contents);
if (!form_json.is_object()) {
GMessageBox::show(String::format("Could not parse '%s'", path.characters()), "Error", GMessageBox::Type::Error, window());
return;
}
m_name = form_json.as_object().get("name").to_string();
auto widgets = form_json.as_object().get("widgets").as_array();
widgets.for_each([&](const JsonValue& widget_value) {
auto& widget_object = widget_value.as_object();
auto widget_class = widget_object.get("class").as_string();
auto widget_type = widget_type_from_class_name(widget_class);
auto vbwidget = VBWidget::create(widget_type, *this);
widget_object.for_each_member([&](auto& property_name, const JsonValue& property_value) {
(void)property_name;
(void)property_value;
VBProperty& property = vbwidget->property(property_name);
dbgprintf("Set property %s.%s to '%s'\n", widget_class.characters(), property_name.characters(), property_value.serialized().characters());
property.set_value(property_value);
});
m_widgets.append(vbwidget);
});
}
void VBForm::write_to_file(const String& path)
{
CFile file(path);