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jvi.cpp
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jvi.cpp
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#include <gtkmm.h>
#include <json/json.h>
#include <iostream>
#include <fstream>
#include <functional>
#include "jvi.h"
using namespace std;
JviRoot root;
int main(int argc, char *argv[])
{
root.filename = argv[1] ? argv[1] : "";
int argcgtk = 1;
auto app = Gtk::Application::create(argcgtk, argv, "org.gtkmm.examples.base");
/* setup main widgets */
JviMainWindow* window = new JviMainWindow;
setup_gui(window);
/* populate text-view */
root.gui.json_text_buff->set_text(load_file(root.filename));
return app->run(*window);
}
void on_buff_change()
{
root.state.json_changed = true;
}
void on_switch_page(Gtk::Widget* page, int page_number)
{
root.state.prev_page = 1;
if (root.state.prev_page == 1 && root.state.json_changed) {
/* parse again json and redraw view */
string new_json(root.gui.json_text_buff->get_text());
Json::Value* json_object = parse_json(new_json);
/* auto format text representation */
root.gui.json_text_buff->set_text(json_object->toStyledString());
root.gui.tree_storage->clear();
auto row = root.gui.tree_storage->append();
JviModel model;
(*row)[model.value_text] = root.filename;
(*row)[model.value_icon] = root.res.icon_doc;
iter_node(*json_object, row, root.gui.tree_storage);
}
root.state.prev_page ^= 0x1;
root.state.json_changed = false;
}
void on_click_tree_node(const Gtk::TreeModel::Path& c_path, Gtk::TreeViewColumn* view)
{
string path_to_object = "";
JviModel row_model;
Gtk::TreeModel::Path path = c_path;
/* update path to clicked node */
auto model = view->get_tree_view()->get_model();
while (path) {
string value = model->get_iter(path)->get_value(row_model.value_text);
path_to_object = value + "/" + path_to_object;
path.up();
}
root.gui.path_entry_buff->set_text(path_to_object);
/* expand/collapse on click */
if (view->get_tree_view()->row_expanded(c_path))
view->get_tree_view()->collapse_row(c_path);
else
view->get_tree_view()->expand_row(c_path, false);
}
void setup_gui(JviMainWindow* window)
{
/* load resources */
root.res.icon_doc = Gtk::IconTheme::get_default()->load_icon("text-x-generic", 16);
root.res.icon_obj = Gtk::IconTheme::get_default()->load_icon("edit-copy", 16);
root.res.icon_key = Gtk::IconTheme::get_default()->load_icon("media-playback-stop", 16);
/* main window */
window->set_default_size(800, 800);
window->set_title("jvi - " + root.filename);
/* widgets creation */
Gtk::Notebook* notebook = new Gtk::Notebook();
Gtk::ScrolledWindow* scrolled_window_oview = new Gtk::ScrolledWindow;
Gtk::ScrolledWindow* scrolled_window_tview = new Gtk::ScrolledWindow;
/* object-view widgets */
Gtk::VBox* main_vbox = new Gtk::VBox;
JviModel model;
root.gui.tree_storage = Gtk::TreeStore::create(model);
Gtk::TreeView* tree_view = new Gtk::TreeView(root.gui.tree_storage);
Gtk::ListBox* bookmark_list = new Gtk::ListBox;
Gtk::Button* bookmark_button = new Gtk::Button("Bookmarks");
Gtk::Entry* path_entry = new Gtk::Entry;
root.gui.path_entry_buff = path_entry->get_buffer();
/* text-view widgets */
root.gui.json_text_buff = Gtk::TextBuffer::create();
Gtk::TextView* text_view = new Gtk::TextView(root.gui.json_text_buff);
text_view->set_wrap_mode(Gtk::WrapMode::WRAP_WORD_CHAR);
root.gui.json_text_buff->signal_changed().connect(sigc::ptr_fun(&on_buff_change));
/* layout */
Gtk::Paned* main_hpaned = new Gtk::Paned;
window->add(*main_hpaned);
notebook->append_page(*main_vbox, "Object View");
notebook->append_page(*scrolled_window_tview, "Text View");
notebook->signal_switch_page().connect(sigc::ptr_fun(&on_switch_page));
main_hpaned->pack1(*notebook);
main_hpaned->pack2(*bookmark_list);
main_hpaned->set_wide_handle(true);
main_hpaned->set_position((800/6)*5);
bookmark_list->append(*bookmark_button);
main_vbox->pack_start(*path_entry, false, false);
main_vbox->pack_end(*scrolled_window_oview, true, true);
text_view->show();
notebook->show();
main_hpaned->show();
main_vbox->show();
path_entry->show();
scrolled_window_oview->show();
scrolled_window_tview->show();
bookmark_list->show();
bookmark_button->show();
/* other settings */
Gtk::TreeView::Column* pColumn = Gtk::manage(new Gtk::TreeView::Column("JSON"));
pColumn->pack_start(model.value_icon, false);
pColumn->pack_start(model.value_text);
tree_view->append_column(*pColumn);
tree_view->set_hover_selection(true);
tree_view->set_enable_tree_lines(true);
tree_view->set_activate_on_single_click(true);
tree_view->signal_row_activated().connect(sigc::ptr_fun(&on_click_tree_node));
scrolled_window_oview->add(*tree_view);
scrolled_window_tview->add(*text_view);
tree_view->show();
}
string load_file(string filename)
{
if (filename.size()) {
std::filebuf fb;
if (fb.open(filename, std::ios::in)) {
std::istream is(&fb);
stringstream str_stream;
str_stream << is.rdbuf();
return str_stream.str();
}
}
return "{}";
}
Json::Value* parse_json(string file)
{
Json::Value* json_root = new Json::Value;
Json::Reader reader;
auto success = reader.parse(file, *json_root);
if (!success) {
dprintf(2, "Ups! Problem parsing JSON\n%s", reader.getFormattedErrorMessages().c_str());
static const string error("error");
(*json_root)[error] = reader.getFormattedErrorMessages();
}
return json_root;
}
void iter_node(Json::Value& json_root, auto root_row, auto tree_storage)
{
JviModel model;
auto make_node_view = [&model](auto name, auto val, auto row) {
if (val.size()) {
(*row)[model.value_text] = name + " : " + val;
(*row)[model.value_icon] = root.res.icon_key;
} else {
(*row)[model.value_text] = name;
(*row)[model.value_icon] = root.res.icon_obj;
}
};
auto get_name = [&json_root](auto i, int& table_index) {
string name = i.name();
if (json_root.type() == Json::ValueType::arrayValue) {
name = "[" + to_string(table_index++) + "]";
}
return name;
};
auto get_value = [](auto json_obj) {
string val = "";
if (json_obj->isConvertibleTo(Json::ValueType::stringValue)) {
val = json_obj->asString();
}
return val;
};
int index = 0;
for (Json::ValueIterator i = json_root.begin(); i != json_root.end(); ++i)
{
string name = get_name(i, index);
string val = get_value(i);
auto child_row = tree_storage->append(root_row->children());
if (i->size()) {
make_node_view(name, val, child_row);
iter_node(*i, child_row, tree_storage);
} else {
make_node_view(name, val, child_row);
}
}
}