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Add backward and forward search for gtk134

This commit is contained in:
daleclack 2022-07-07 15:17:00 +08:00
parent a52d00fb38
commit 63da8d8fdf
2 changed files with 66 additions and 14 deletions
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71
Gtkmm3/gtk134_editor4/src/TextEditor.cc
View File

@ -6,11 +6,12 @@
#define text_globs supported_globs
TextEditor::TextEditor()
:vbox(Gtk::ORIENTATION_VERTICAL,5),
hbox(Gtk::ORIENTATION_HORIZONTAL,5)
:vbox(Gtk::ORIENTATION_VERTICAL, 5),
hbox(Gtk::ORIENTATION_HORIZONTAL, 5),
searchbox(Gtk::ORIENTATION_HORIZONTAL, 5)
{
//Initalize Window
set_default_size(800,450);
set_default_size(800, 450);
set_icon_name("my_textedit");
//Initalize HeaderBar
@ -40,23 +41,34 @@ hbox(Gtk::ORIENTATION_HORIZONTAL,5)
hbox.pack_start(sw1);
//Add actions and signal handlers
add_action("text_open",sigc::mem_fun(*this,&TextEditor::btnopen_clicked));
add_action("text_save",sigc::mem_fun(*this,&TextEditor::btnsave_clicked));
add_action("text_copy",sigc::mem_fun(*this,&TextEditor::btncopy_clicked));
add_action("text_paste",sigc::mem_fun(*this,&TextEditor::btnpaste_clicked));
add_action("text_clear",sigc::mem_fun(*this,&TextEditor::btnclear_clicked));
add_action("text_open", sigc::mem_fun(*this,&TextEditor::btnopen_clicked));
add_action("text_save", sigc::mem_fun(*this,&TextEditor::btnsave_clicked));
add_action("text_copy", sigc::mem_fun(*this,&TextEditor::btncopy_clicked));
add_action("text_paste", sigc::mem_fun(*this,&TextEditor::btnpaste_clicked));
add_action("text_clear", sigc::mem_fun(*this,&TextEditor::btnclear_clicked));
//Add searchbar
searchbar.add(search_entry);
//Add searchbar and search up and down buttons
search_up.set_image_from_icon_name("up");
search_down.set_image_from_icon_name("down");
// Bind property and signals
search_binding = Glib::Binding::bind_property(search_button.property_active(),
searchbar.property_search_mode_enabled(),
Glib::BINDING_BIDIRECTIONAL);
search_entry.signal_changed().connect(sigc::mem_fun(*this, &TextEditor::search_entry_changed));
search_up.signal_clicked().connect(sigc::mem_fun(*this, &TextEditor::search_backward));
search_down.signal_clicked().connect(sigc::mem_fun(*this, &TextEditor::search_forward));
// Pack widgets
searchbox.pack_start(search_entry, Gtk::PACK_SHRINK);
searchbox.pack_start(search_up, Gtk::PACK_SHRINK);
searchbox.pack_start(search_down, Gtk::PACK_SHRINK);
searchbar.add(searchbox);
vbox.pack_start(searchbar, Gtk::PACK_SHRINK);
//A InfoBar
infobar.add_button("OK",Gtk::RESPONSE_OK);
infobar.signal_response().connect(sigc::mem_fun(*this,&TextEditor::infobar_response));
infobar.signal_response().connect(sigc::mem_fun(*this, &TextEditor::infobar_response));
infobox = dynamic_cast<Gtk::Box*>(infobar.get_content_area());
infobox->pack_start(label1);
vbox.pack_start(infobar,Gtk::PACK_SHRINK);
@ -160,10 +172,43 @@ void TextEditor::buffer1_changed(){
}
void TextEditor::search_entry_changed(){
// Get Text to search
const Glib::ustring text = search_entry.get_text();
Gtk::TextIter start, end;
if(buffer1->begin().forward_search(text,Gtk::TEXT_SEARCH_CASE_INSENSITIVE,start,end)){
buffer1->select_range(start,end);
// If get text to search, select the text and storage the position
if(buffer1->begin().forward_search(text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end)){
curr_iter_up = start;
curr_iter_down = end;
buffer1->select_range(start, end);
textview1.scroll_to(start);
}
}
void TextEditor::search_forward(){
// Get Text to search
const Glib::ustring search_text = search_entry.get_text();
Gtk::TextIter start, end;
// Get Text to search, down to the end of text
if(curr_iter_down.forward_search(search_text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end)){
curr_iter_up = start;
curr_iter_down = end;
buffer1->select_range(start, end);
textview1.scroll_to(start);
}
}
void TextEditor::search_backward(){
// Get Text to search, up to the start of text
const Glib::ustring search_text = search_entry.get_text();
Gtk::TextIter start, end;
// Get Text to search
if(curr_iter_up.backward_search(search_text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end)){
curr_iter_up = start;
curr_iter_down = end;
buffer1->select_range(start, end);
textview1.scroll_to(start);
}
}

9
Gtkmm3/gtk134_editor4/src/TextEditor.hh
View File

@ -11,10 +11,15 @@ private:
Gtk::MenuButton menubtn;
Gtk::Popover popover;
Gtk::ToggleButton search_button;
Glib::RefPtr<Gtk::Builder> menu_builder;
//SearchBar
Gtk::SearchBar searchbar;
Gtk::SearchEntry search_entry;
Glib::RefPtr<Gtk::Builder> menu_builder;
Gtk::Box searchbox;
Gtk::Button search_up, search_down;
Glib::RefPtr<Glib::Binding> search_binding;
Gtk::TextIter curr_iter_up, curr_iter_down;
//Window widgets
Gtk::Box vbox,hbox,*infobox;
@ -38,6 +43,8 @@ private:
void btnclear_clicked();
void buffer1_changed();
void search_entry_changed();
void search_forward();
void search_backward();
void clipboard_receive(const Glib::ustring &text);
void infobar_response(int response);
};