scroll_text: markup and link awareness support
support for copying and partial editing only. this does not make multiline_text a rich text editor.
This commit is contained in:
Subhraman Sarkar
Charles Dang
parent
6023eb338c
commit
54535fca3b
8 changed files with 140 additions and 85 deletions
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@ -57,6 +57,8 @@
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inactive_color = ["{GUI__FONT_COLOR_DISABLED__DEFAULT}"]
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)"
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text = "(text)"
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text_link_aware = "(text_link_aware)"
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text_markup = "(text_markup)"
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highlight_color = "21, 53, 80"
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highlight_start = "(highlight_start)"
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highlight_end = "(highlight_end)"
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@ -96,6 +98,8 @@
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reg_color = [{COLOR}]
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)"
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text_link_aware = "(text_link_aware)"
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text_markup = "(text_markup)"
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text = "(
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if(text = '' and hint_text != '', hint_text, text))"
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[/text]
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@ -149,8 +153,6 @@
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text_y_offset = 2
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text_extra_width = {EXTRA_WIDTH}
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#functions = "(def show_hint_text() (text = '' and hint_text != '');)"
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[state_enabled]
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[draw]
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@ -17,8 +17,12 @@
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#include "gui/widgets/multiline_text.hpp"
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#include "cursor.hpp"
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#include "desktop/clipboard.hpp"
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#include "desktop/open.hpp"
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#include "gui/core/log.hpp"
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#include "gui/core/register_widget.hpp"
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#include "gui/dialogs/message.hpp"
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#include "gui/widgets/window.hpp"
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#include "serialization/unicode.hpp"
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#include "font/text.hpp"
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@ -37,7 +41,7 @@ namespace gui2
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REGISTER_WIDGET(multiline_text)
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multiline_text::multiline_text(const implementation::builder_styled_widget& builder)
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multiline_text::multiline_text(const implementation::builder_multiline_text& builder)
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: text_box_base(builder, type())
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, history_()
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, max_input_length_(0)
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@ -45,6 +49,7 @@ multiline_text::multiline_text(const implementation::builder_styled_widget& buil
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, text_y_offset_(0)
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, text_height_(0)
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, dragging_(false)
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, link_aware_(builder.link_aware)
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{
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set_wants_mouse_left_double_click();
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@ -66,6 +71,15 @@ multiline_text::multiline_text(const implementation::builder_styled_widget& buil
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update_offsets();
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}
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void multiline_text::set_link_aware(bool link_aware)
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{
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if(link_aware != link_aware_) {
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link_aware_ = link_aware;
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update_canvas();
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queue_redraw();
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}
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}
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void multiline_text::place(const point& origin, const point& size)
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{
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// Inherited.
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@ -124,16 +138,22 @@ void multiline_text::update_canvas()
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const int max_width = get_text_maximum_width();
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const int max_height = get_text_maximum_height();
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const point cpos = get_cursor_pos_from_index(start + length);
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unsigned byte_pos = start + length;
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if (get_use_markup() && (start + length > utf8::size(plain_text()) + 1)) {
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byte_pos = utf8::size(plain_text());
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}
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const point cpos = get_cursor_pos_from_index(byte_pos);
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for(auto & tmp : get_canvases())
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{
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tmp.set_variable("text", wfl::variant(get_value()));
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tmp.set_variable("text_markup", wfl::variant(get_use_markup()));
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tmp.set_variable("text_x_offset", wfl::variant(text_x_offset_));
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tmp.set_variable("text_y_offset", wfl::variant(text_y_offset_));
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tmp.set_variable("text_maximum_width", wfl::variant(max_width));
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tmp.set_variable("text_maximum_height", wfl::variant(max_height));
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tmp.set_variable("text_link_aware", wfl::variant(get_link_aware()));
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tmp.set_variable("text_wrap_mode", wfl::variant(PANGO_ELLIPSIZE_NONE));
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tmp.set_variable("editable", wfl::variant(is_editable()));
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@ -191,26 +211,22 @@ void multiline_text::delete_selection()
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void multiline_text::handle_mouse_selection(point mouse, const bool start_selection)
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{
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mouse.x -= get_x();
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mouse.y -= get_y();
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mouse -= get_origin();
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point text_offset(text_x_offset_, text_y_offset_);
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// FIXME we don't test for overflow in width
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if(mouse.x < static_cast<int>(text_x_offset_)
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|| mouse.y < static_cast<int>(text_y_offset_)
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|| mouse.y >= static_cast<int>(text_y_offset_ + get_lines_count() * font::get_line_spacing_factor() * text_height_)) {
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if(mouse < text_offset
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|| mouse.y >= static_cast<int>(text_y_offset_ + get_lines_count() * font::get_line_spacing_factor() * text_height_))
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{
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return;
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}
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point cursor_pos = get_column_line(point(mouse.x - text_x_offset_, mouse.y - text_y_offset_));
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int offset = cursor_pos.x;
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int line = cursor_pos.y;
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const auto& [offset, line] = get_column_line(mouse - text_offset);
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if(offset < 0) {
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return;
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}
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offset += get_line_start_offset(line);
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set_cursor(offset, !start_selection);
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set_cursor(offset + get_line_start_offset(line), !start_selection);
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update_canvas();
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queue_redraw();
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@ -319,10 +335,10 @@ void multiline_text::handle_key_down_arrow(SDL_Keymod modifier, bool& handled)
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handled = true;
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size_t offset = get_selection_start();
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unsigned offset = get_selection_start();
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const unsigned line_num = get_line_number(offset);
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if (line_num == get_lines_count()) {
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if (line_num == get_lines_count()-1) {
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return;
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}
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@ -330,15 +346,7 @@ void multiline_text::handle_key_down_arrow(SDL_Keymod modifier, bool& handled)
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const unsigned next_line_start = get_line_start_offset(line_num+1);
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const unsigned next_line_end = get_line_end_offset(line_num+1);
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if (line_num < get_lines_count()-1) {
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offset = offset - line_start + next_line_start;
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if (offset > next_line_end) {
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offset = next_line_end;
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}
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}
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offset += get_selection_length();
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offset = std::min(offset - line_start + next_line_start, next_line_end) + get_selection_length();
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if (offset <= get_length()) {
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set_cursor(offset, (modifier & KMOD_SHIFT) != 0);
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@ -354,7 +362,7 @@ void multiline_text::handle_key_up_arrow(SDL_Keymod modifier, bool& handled)
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handled = true;
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size_t offset = get_selection_start();
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unsigned offset = get_selection_start();
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const unsigned line_num = get_line_number(offset);
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if (line_num == 0) {
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@ -365,15 +373,7 @@ void multiline_text::handle_key_up_arrow(SDL_Keymod modifier, bool& handled)
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const unsigned prev_line_start = get_line_start_offset(line_num-1);
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const unsigned prev_line_end = get_line_end_offset(line_num-1);
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if (line_num > 0) {
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offset = offset - line_start + prev_line_start;
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if (offset > prev_line_end) {
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offset = prev_line_end;
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}
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}
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offset += get_selection_length();
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offset = std::min(offset - line_start + prev_line_start, prev_line_end) + get_selection_length();
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/* offset is unsigned int */
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if (offset <= get_length()) {
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@ -392,6 +392,17 @@ void multiline_text::signal_handler_mouse_motion(const event::ui_event event,
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if(dragging_) {
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handle_mouse_selection(coordinate, false);
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} else {
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if(!get_link_aware()) {
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return; // without marking event as "handled"
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}
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point mouse = coordinate - get_origin();
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if (!get_label_link(mouse).empty()) {
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cursor::set(cursor::HYPERLINK);
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} else {
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cursor::set(cursor::IBEAM);
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}
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}
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handled = true;
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@ -405,7 +416,27 @@ void multiline_text::signal_handler_left_button_down(const event::ui_event event
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get_window()->keyboard_capture(this);
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get_window()->mouse_capture();
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handle_mouse_selection(get_mouse_position(), true);
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point mouse_pos = get_mouse_position();
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if (get_link_aware()) {
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std::string link = get_label_link(mouse_pos - get_origin());
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DBG_GUI_E << "Clicked Link:\"" << link << "\"";
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if (!link.empty()) {
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if (desktop::open_object_is_supported()) {
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if(show_message(_("Open link?"), link, dialogs::message::yes_no_buttons) == gui2::retval::OK) {
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desktop::open_object(link);
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}
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} else {
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desktop::clipboard::copy_to_clipboard(link, true);
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show_message("", _("Opening links is not supported, contact your packager. Link URL has been copied to the clipboard."), dialogs::message::auto_close);
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}
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} else {
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handle_mouse_selection(mouse_pos, true);
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}
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} else {
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handle_mouse_selection(mouse_pos, true);
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}
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handled = true;
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}
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@ -464,6 +495,7 @@ builder_multiline_text::builder_multiline_text(const config& cfg)
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, hint_image(cfg["hint_image"])
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, editable(cfg["editable"].to_bool(true))
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, wrap(cfg["wrap"].to_bool(true))
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, link_aware(cfg["link_aware"].to_bool(false))
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{
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}
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@ -33,7 +33,7 @@ class multiline_text : public text_box_base
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friend struct implementation::builder_multiline_text;
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public:
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explicit multiline_text(const implementation::builder_styled_widget& builder);
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explicit multiline_text(const implementation::builder_multiline_text& builder);
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/** See @ref widget::can_wrap. */
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bool can_wrap() const override
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@ -143,6 +143,14 @@ public:
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update_layout();
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}
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/** See @ref styled_widget::get_link_aware. */
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virtual bool get_link_aware() const override
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{
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return link_aware_;
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}
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void set_link_aware(bool l);
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private:
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/** Inherited from text_box_base. */
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void paste_selection(const bool mouse) override
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@ -194,6 +202,12 @@ private:
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/** Is the mouse in dragging mode, this affects selection in mouse move */
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bool dragging_;
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/**
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* Whether the text area is link aware, rendering links with special formatting
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* and handling click events.
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*/
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bool link_aware_;
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/** Helper text to display (such as "Search") if the text box is empty. */
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std::string hint_text_;
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@ -351,6 +365,7 @@ public:
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bool editable;
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bool wrap;
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bool link_aware;
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};
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} // namespace implementation
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@ -1,6 +1,6 @@
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/*
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Copyright (C) 2023 - 2024
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by babaissarkar(Subhraman Sarkar) <suvrax@gmail.com>
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by Subhraman Sarkar (babaissarkar) <suvrax@gmail.com>
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Part of the Battle for Wesnoth Project https://www.wesnoth.org/
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This program is free software; you can redistribute it and/or modify
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@ -41,8 +41,9 @@ scroll_text::scroll_text(const implementation::builder_scroll_text& builder)
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, state_(ENABLED)
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, wrap_on_(false)
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, text_alignment_(builder.text_alignment)
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, editable_(true)
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, editable_(builder.editable)
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, max_size_(point(0,0))
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, link_aware_(builder.link_aware)
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{
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connect_signal<event::LEFT_BUTTON_DOWN>(
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std::bind(&scroll_text::signal_handler_left_button_down, this, std::placeholders::_2),
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@ -81,6 +82,15 @@ std::string scroll_text::get_value()
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}
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}
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void scroll_text::set_link_aware(bool l)
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{
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link_aware_ = l;
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if(multiline_text* widget = get_internal_text_box()) {
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widget->set_link_aware(l);
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}
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}
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void scroll_text::set_text_alignment(const PangoAlignment text_alignment)
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{
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// Inherit.
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@ -93,16 +103,6 @@ void scroll_text::set_text_alignment(const PangoAlignment text_alignment)
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}
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}
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void scroll_text::set_use_markup(bool use_markup)
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{
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// Inherit.
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styled_widget::set_use_markup(use_markup);
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if(multiline_text* widget = get_internal_text_box()) {
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widget->set_use_markup(use_markup);
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}
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}
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void scroll_text::set_self_active(const bool active)
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{
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state_ = active ? ENABLED : DISABLED;
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@ -126,6 +126,7 @@ void scroll_text::finalize_subclass()
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text->set_editable(is_editable());
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text->set_label(get_label());
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text->set_text_alignment(text_alignment_);
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text->set_link_aware(link_aware_);
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text->set_use_markup(get_use_markup());
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}
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@ -244,6 +245,7 @@ builder_scroll_text::builder_scroll_text(const config& cfg)
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, horizontal_scrollbar_mode(get_scrollbar_mode(cfg["horizontal_scrollbar_mode"]))
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, text_alignment(decode_text_alignment(cfg["text_alignment"]))
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, editable(cfg["editable"].to_bool(true))
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, link_aware(cfg["link_aware"].to_bool(false))
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{
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// Scrollbar default to auto. AUTO_VISIBLE_FIRST_RUN doesn't work.
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if (horizontal_scrollbar_mode == scrollbar_container::AUTO_VISIBLE_FIRST_RUN) {
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@ -261,8 +263,6 @@ std::unique_ptr<widget> builder_scroll_text::build() const
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widget->set_vertical_scrollbar_mode(vertical_scrollbar_mode);
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widget->set_horizontal_scrollbar_mode(horizontal_scrollbar_mode);
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widget->set_editable(editable);
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widget->set_text_alignment(text_alignment);
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const auto conf = widget->cast_config_to<scroll_text_definition>();
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assert(conf);
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@ -1,6 +1,6 @@
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/*
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Copyright (C) 2023 - 2024
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by babaissarkar(Subhraman Sarkar) <suvrax@gmail.com>
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by Subhraman Sarkar (babaissarkar) <suvrax@gmail.com>
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Part of the Battle for Wesnoth Project https://www.wesnoth.org/
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This program is free software; you can redistribute it and/or modify
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@ -53,9 +53,6 @@ public:
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/** See @ref styled_widget::set_text_alignment. */
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virtual void set_text_alignment(const PangoAlignment text_alignment) override;
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/** See @ref styled_widget::set_use_markup. */
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virtual void set_use_markup(bool use_markup) override;
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/** See @ref container_base::set_self_active. */
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virtual void set_self_active(const bool active) override;
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@ -70,6 +67,14 @@ public:
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bool can_wrap() const override;
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void set_can_wrap(bool can_wrap);
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void set_link_aware(bool l);
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/** See @ref styled_widget::get_link_aware. */
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virtual bool get_link_aware() const override
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{
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return link_aware_;
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}
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void set_editable(bool editable)
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{
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editable_ = editable;
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@ -110,6 +115,8 @@ private:
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point max_size_;
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bool link_aware_;
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void finalize_subclass() override;
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/** Used for moving scrollbars.
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@ -183,6 +190,7 @@ struct builder_scroll_text : public builder_styled_widget
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scrollbar_container::scrollbar_mode horizontal_scrollbar_mode;
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const PangoAlignment text_alignment;
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bool editable;
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bool link_aware;
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};
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} // namespace implementation
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@ -487,7 +487,7 @@ point styled_widget::get_best_text_size(point minimum_size, point maximum_size)
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<< "Status:\n"
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<< "minimum_size: " << minimum_size << "\n"
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<< "maximum_size: " << maximum_size << "\n"
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<< "text_maximum_width_: " << text_maximum_width_ << "\n"
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<< "maximum width of text: " << text_maximum_width_ << "\n"
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<< "can_wrap: " << can_wrap() << "\n"
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<< "characters_per_line: " << get_characters_per_line() << "\n"
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<< "truncated: " << renderer_.is_truncated() << "\n"
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@ -123,7 +123,7 @@ void text_box_base::set_maximum_length(const std::size_t maximum_length)
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void text_box_base::set_value(const std::string& text)
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{
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if(text != text_.text()) {
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text_.set_text(text, false);
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text_.set_text(text, get_use_markup());
|
||||
|
||||
// default to put the cursor at the end of the buffer.
|
||||
selection_start_ = text_.get_length();
|
||||
|
|
@ -138,31 +138,18 @@ void text_box_base::set_cursor(const std::size_t offset, const bool select)
|
|||
reset_cursor_state();
|
||||
|
||||
if(select) {
|
||||
|
||||
if(selection_start_ == offset) {
|
||||
selection_length_ = 0;
|
||||
} else {
|
||||
selection_length_ = -static_cast<int>(selection_start_ - offset);
|
||||
}
|
||||
|
||||
selection_length_ = (selection_start_ == offset) ? 0 : -static_cast<int>(selection_start_ - offset);
|
||||
#ifdef __unix__
|
||||
// selecting copies on UNIX systems.
|
||||
copy_selection(true);
|
||||
#endif
|
||||
update_canvas();
|
||||
queue_redraw();
|
||||
|
||||
} else {
|
||||
if (offset <= text_.get_length()) {
|
||||
selection_start_ = offset;
|
||||
} else {
|
||||
selection_start_ = 0;
|
||||
}
|
||||
selection_start_ = (offset <= text_.get_length()) ? offset : 0;
|
||||
selection_length_ = 0;
|
||||
|
||||
update_canvas();
|
||||
queue_redraw();
|
||||
}
|
||||
|
||||
update_canvas();
|
||||
queue_redraw();
|
||||
}
|
||||
|
||||
void text_box_base::insert_char(const std::string& unicode)
|
||||
|
|
@ -174,10 +161,14 @@ void text_box_base::insert_char(const std::string& unicode)
|
|||
|
||||
delete_selection();
|
||||
|
||||
if(text_.insert_text(selection_start_, unicode)) {
|
||||
|
||||
if(text_.insert_text(selection_start_, unicode, get_use_markup())) {
|
||||
// Update status
|
||||
set_cursor(selection_start_ + utf8::size(unicode), false);
|
||||
size_t plain_text_len = utf8::size(plain_text());
|
||||
size_t cursor_pos = selection_start_ + utf8::size(unicode);
|
||||
if (get_use_markup() && (selection_start_ + utf8::size(unicode) > plain_text_len + 1)) {
|
||||
cursor_pos = plain_text_len;
|
||||
}
|
||||
set_cursor(cursor_pos, false);
|
||||
update_canvas();
|
||||
queue_redraw();
|
||||
}
|
||||
|
|
@ -213,7 +204,7 @@ void text_box_base::copy_selection(const bool mouse)
|
|||
}
|
||||
|
||||
unsigned end, start = selection_start_;
|
||||
const std::string txt = text_.text();
|
||||
const std::string txt = get_use_markup() ? plain_text() : text_.text();
|
||||
|
||||
if(selection_length_ > 0) {
|
||||
end = utf8::index(txt, start + selection_length_);
|
||||
|
|
@ -240,7 +231,7 @@ void text_box_base::paste_selection(const bool mouse)
|
|||
|
||||
delete_selection();
|
||||
|
||||
selection_start_ += text_.insert_text(selection_start_, text);
|
||||
selection_start_ += text_.insert_text(selection_start_, text, get_use_markup());
|
||||
|
||||
update_canvas();
|
||||
queue_redraw();
|
||||
|
|
@ -383,7 +374,7 @@ void text_box_base::handle_key_right_arrow(SDL_Keymod modifier, bool& handled)
|
|||
|
||||
handled = true;
|
||||
const std::size_t offset = selection_start_ + 1 + selection_length_;
|
||||
if(offset <= text_.get_length()) {
|
||||
if(offset <= (get_use_markup() ? utf8::size(plain_text()) : text_.get_length())) {
|
||||
set_cursor(offset, (modifier & KMOD_SHIFT) != 0);
|
||||
}
|
||||
}
|
||||
|
|
@ -498,13 +489,13 @@ void text_box_base::handle_editing(bool& handled, const std::string& unicode, in
|
|||
// SDL_TextEditingEvent.
|
||||
// start is start position of the separated event in entire composition text
|
||||
if(start == 0) {
|
||||
text_.set_text(text_cached_, false);
|
||||
text_.set_text(text_cached_, get_use_markup());
|
||||
}
|
||||
text_.insert_text(ime_start_point_ + start, unicode);
|
||||
text_.insert_text(ime_start_point_ + start, unicode, get_use_markup());
|
||||
#else
|
||||
std::string new_text(text_cached_);
|
||||
utf8::insert(new_text, ime_start_point_, unicode);
|
||||
text_.set_text(new_text, false);
|
||||
text_.set_text(new_text, get_use_markup());
|
||||
|
||||
#endif
|
||||
int maximum_length = text_.get_length();
|
||||
|
|
|
|||
|
|
@ -147,6 +147,13 @@ public:
|
|||
return text_.text();
|
||||
}
|
||||
|
||||
std::string plain_text()
|
||||
{
|
||||
char* plain_text = nullptr;
|
||||
pango_parse_markup(text().c_str(), text().size(), 0, nullptr, &plain_text, nullptr, nullptr);
|
||||
return plain_text ? std::string(plain_text) : std::string();
|
||||
}
|
||||
|
||||
/** Set the text_changed callback. */
|
||||
void set_text_changed_callback(
|
||||
std::function<void(text_box_base* textbox, const std::string text)> cb)
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue