testing-repository/Gtk4/gtk107_text_gtk4/src/mywindow.cpp

204 lines
6.9 KiB
C++

#include "mywindow.h"
#include "MyDialog.h"
#include "myprefs.h"
struct _MyWindow{
GtkApplicationWindow parent;
GtkWidget * stack;
GtkWidget * gears;
GSettings * settings;
GtkWidget * search;
GtkWidget * searchbar;
GtkWidget * lines;
GtkWidget * lines_label;
};
G_DEFINE_TYPE(MyWindow,my_window,GTK_TYPE_APPLICATION_WINDOW)
static void search_text_changed(GtkEntry *entry,MyWindow *win){
const char *text;
GtkWidget *tab,*view;
GtkTextBuffer *buffer;
GtkTextIter start,march_start,march_end;
//text=gtk_entry_get_text(entry);
text=gtk_editable_get_text(GTK_EDITABLE(entry));
if(text[0]=='\0'){
return ;
}
tab=gtk_stack_get_visible_child(GTK_STACK(win->stack));
view=gtk_scrolled_window_get_child(GTK_SCROLLED_WINDOW(tab));
buffer=gtk_text_view_get_buffer(GTK_TEXT_VIEW(view));
/* Very simple-minded search implementation */
gtk_text_buffer_get_start_iter(buffer,&start);
if(gtk_text_iter_forward_search(&start,text,GTK_TEXT_SEARCH_VISIBLE_ONLY
,&march_start,&march_end,NULL))
{
gtk_text_buffer_select_range(buffer,&march_start,&march_end);
gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(view),&start,0.0,FALSE,0.0,0.0);
}
}
static void visible_child_changed(GObject *stack,GParamSpec *pspec,MyWindow *win){
gtk_search_bar_set_search_mode(GTK_SEARCH_BAR(win->searchbar),FALSE);
}
static void update_lines(MyWindow *window){
GtkWidget *tab,*view;
GtkTextBuffer * buffer;
int count;
char *lines_str;
tab=gtk_stack_get_visible_child(GTK_STACK(window->stack));
if(tab == NULL){return ;}
view=gtk_scrolled_window_get_child(GTK_SCROLLED_WINDOW(tab));
buffer=gtk_text_view_get_buffer(GTK_TEXT_VIEW(view));
count=gtk_text_buffer_get_line_count(buffer);
lines_str=g_strdup_printf("%d",count);
gtk_label_set_label(GTK_LABEL(window->lines),lines_str);
g_free(lines_str);
}
static void open_dialog(GSimpleAction *action,
GVariant *parmeter,
gpointer data) //Open the file dialog
{
my_dialog_new(MY_WINDOW(data),"Open a text file",GTK_FILE_CHOOSER_ACTION_OPEN);
}
static void preferences_activated(GSimpleAction *action,
GVariant *parmeter,
gpointer data)
{
MyPrefs * prefs;
prefs=my_prefs_new(MY_WINDOW(data));
gtk_window_present(GTK_WINDOW(prefs));
}
static void quit_activated(GSimpleAction *action,
GVariant *parmeter,
gpointer data)
{
gtk_window_destroy(GTK_WINDOW(data));
}
static void my_window_init(MyWindow *window){
//Ininalize window
gtk_widget_init_template(GTK_WIDGET(window));
gtk_window_set_icon_name(GTK_WINDOW(window),"org.gtk.daleclack");
//Add Actions
static GActionEntry entries[]={
{"open",open_dialog,NULL,NULL,NULL},
{"preferences",preferences_activated,NULL,NULL,NULL},
{"quit",quit_activated,NULL,NULL,NULL}
};
g_action_map_add_action_entries(G_ACTION_MAP(window),entries,G_N_ELEMENTS(entries),window);
//Add Menu
GtkBuilder * builder;
GMenuModel * model;
GAction * action;
builder=gtk_builder_new_from_resource("/org/gtk/daleclack/app-menu.ui");
model=G_MENU_MODEL(gtk_builder_get_object(builder,"appmenu"));
gtk_menu_button_set_menu_model(GTK_MENU_BUTTON(window->gears),model);
//Bind Settings
window->settings=g_settings_new("org.gtk.daleclack");
g_settings_bind (window->settings, "transition",
window->stack, "transition-type",
G_SETTINGS_BIND_DEFAULT);
g_object_bind_property(window->search,"active",
window->searchbar,"search-mode-enabled",
G_BINDING_BIDIRECTIONAL);
action=(GAction*)g_property_action_new("show-lines",window->lines,"visible");
g_action_map_add_action(G_ACTION_MAP(window),action);
g_object_unref(action);
g_object_bind_property(window->lines,"visible",
window->lines_label,"visible",
G_BINDING_DEFAULT);
}
static void my_window_dispose(GObject *object){
g_clear_object(&MY_WINDOW(object)->settings);
G_OBJECT_CLASS(my_window_parent_class)->dispose(object);
}
static void my_window_class_init(MyWindowClass *winclass){
gtk_widget_class_set_template_from_resource(GTK_WIDGET_CLASS(winclass),
"/org/gtk/daleclack/window.ui");
G_OBJECT_CLASS(winclass)->dispose=my_window_dispose;
//Get Child widgets
gtk_widget_class_bind_template_child(GTK_WIDGET_CLASS(winclass),MyWindow,stack);
gtk_widget_class_bind_template_child(GTK_WIDGET_CLASS(winclass),MyWindow,gears);
gtk_widget_class_bind_template_child(GTK_WIDGET_CLASS(winclass),MyWindow,search);
gtk_widget_class_bind_template_child(GTK_WIDGET_CLASS(winclass),MyWindow,searchbar);
gtk_widget_class_bind_template_child(GTK_WIDGET_CLASS(winclass),MyWindow,lines);
gtk_widget_class_bind_template_child(GTK_WIDGET_CLASS(winclass),MyWindow,lines_label);
gtk_widget_class_bind_template_callback(GTK_WIDGET_CLASS(winclass),search_text_changed);
gtk_widget_class_bind_template_callback(GTK_WIDGET_CLASS(winclass),visible_child_changed);
}
MyWindow * my_window_new(MyApplication *app){
return (MyWindow*)g_object_new(MY_WINDOW_TYPE,"application",app,NULL);
}
void my_window_open(MyWindow *window,GFile *file){
char *basename;
GtkWidget *scrolled, *view;
char *contents;
gsize length;
GtkTextBuffer * buffer;
GtkTextIter start,end;
GtkTextTag * tag;
//Get basename and stack
basename=g_file_get_basename(file);
scrolled=gtk_scrolled_window_new();
gtk_widget_show (scrolled);
gtk_widget_set_hexpand (scrolled, TRUE);
gtk_widget_set_vexpand (scrolled, TRUE);
view = gtk_text_view_new ();
gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
gtk_widget_show (view);
gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scrolled),view);
gtk_stack_add_titled (GTK_STACK (window->stack), scrolled, basename, basename);
if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL))
{
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_set_text (buffer, contents, length);
g_free (contents);
}
//Apply Tag
tag=gtk_text_buffer_create_tag(buffer,NULL,NULL);
g_settings_bind(window->settings,"font",tag,"font",G_SETTINGS_BIND_DEFAULT);
gtk_text_buffer_get_start_iter(buffer,&start);
gtk_text_buffer_get_end_iter(buffer,&end);
gtk_text_buffer_apply_tag(buffer,tag,&start,&end);
//Enable Search Button
gtk_widget_set_sensitive(window->search,TRUE);
update_lines(window);
g_free (basename);
}