X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Fardour_dropdown.cc;h=dd1b77c6dbb0784b348fc86c48e0b063c2b3f375;hb=fdf63ace6a655f772a46e73719de14f9dd6fb940;hp=84c54489ec8a049560cd56eb40c1349f80fe8136;hpb=62a2d6a0647cd636f8711acceccc22142bb899aa;p=ardour.git diff --git a/gtk2_ardour/ardour_dropdown.cc b/gtk2_ardour/ardour_dropdown.cc index 84c54489ec..dd1b77c6db 100644 --- a/gtk2_ardour/ardour_dropdown.cc +++ b/gtk2_ardour/ardour_dropdown.cc @@ -34,10 +34,8 @@ #include "ardour/rc_configuration.h" // for widget prelight preference #include "ardour_dropdown.h" -#include "ardour_ui.h" -#include "global_signals.h" -#include "i18n.h" +#include "pbd/i18n.h" #define REFLECTION_HEIGHT 2 @@ -45,14 +43,16 @@ using namespace Gdk; using namespace Gtk; using namespace Glib; using namespace PBD; -using std::max; -using std::min; using namespace std; ArdourDropdown::ArdourDropdown (Element e) + : _scrolling_disabled(false) { // signal_button_press_event().connect (sigc::mem_fun(*this, &ArdourDropdown::on_mouse_pressed)); + _menu.signal_size_request().connect (sigc::mem_fun(*this, &ArdourDropdown::menu_size_request)); + + _menu.set_reserve_toggle_size(false); add_elements(e); add_elements(ArdourButton::Menu); @@ -62,11 +62,119 @@ ArdourDropdown::~ArdourDropdown () { } +void +ArdourDropdown::menu_size_request(Requisition *req) { + req->width = max(req->width, get_allocation().get_width()); +} + +void +ArdourDropdown::position_menu(int& x, int& y, bool& push_in) { + using namespace Menu_Helpers; + + /* TODO: lacks support for rotated dropdown buttons */ + + if (!has_screen () || !get_has_window ()) { + return; + } + + Rectangle monitor; + { + const int monitor_num = get_screen ()->get_monitor_at_window (get_window ()); + get_screen ()->get_monitor_geometry ((monitor_num < 0) ? 0 : monitor_num, + monitor); + } + + const Requisition menu_req = _menu.size_request(); + const Rectangle allocation = get_allocation(); + + /* The x and y position are handled separately. + * + * For the x position if the direction is LTR (or RTL), then we try in order: + * a) align the left (right) of the menu with the left (right) of the button + * if there's enough room until the right (left) border of the screen; + * b) align the right (left) of the menu with the right (left) of the button + * if there's enough room until the left (right) border of the screen; + * c) align the right (left) border of the menu with the right (left) border + * of the screen if there's enough space; + * d) align the left (right) border of the menu with the left (right) border + * of the screen, with the rightmost (leftmost) part of the menu that + * overflows the screen. + * XXX We always align left regardless of the direction because if x is + * left of the current monitor, the menu popup code after us notices it + * and enforces that the menu stays in the monitor that's at the left...*/ + + get_window ()->get_origin (x, y); + + if (get_direction() == TEXT_DIR_RTL) { + if (monitor.get_x() <= x + allocation.get_width() - menu_req.width) { + /* a) align menu right and button right */ + x += allocation.get_width() - menu_req.width; + } else if (x + menu_req.width <= monitor.get_x() + monitor.get_width()) { + /* b) align menu left and button left: nothing to do*/ + } else if (menu_req.width > monitor.get_width()) { + /* c) align menu left and screen left, guaranteed to fit */ + x = monitor.get_x(); + } else { + /* d) XXX align left or the menu might change monitors */ + x = monitor.get_x(); + } + } else { /* LTR */ + if (x + menu_req.width <= monitor.get_x() + monitor.get_width()) { + /* a) align menu left and button left: nothing to do*/ + } else if (monitor.get_x() <= x + allocation.get_width() - menu_req.width) { + /* b) align menu right and button right */ + x += allocation.get_width() - menu_req.width; + } else if (menu_req.width > monitor.get_width()) { + /* c) align menu right and screen right, guaranteed to fit */ + x = monitor.get_x() + monitor.get_width() - menu_req.width; + } else { + /* d) align left */ + x = monitor.get_x(); + } + } + + /* For the y position, try in order: + * a) if there is a menu item with the same text as the button, align it + * with the button, unless that makes the menu overflow the monitor. + * b) align the top of the menu with the bottom of the button if there is + * enough room below the button; + * c) align the bottom of the menu with the top of the button if there is + * enough room above the button; + * d) align the bottom of the menu with the bottom of the monitor if there + * is enough room, but avoid moving the menu to another monitor */ + + const MenuList& items = _menu.items (); + const std::string button_text = get_text(); + int offset = 0; + + MenuList::const_iterator i = items.begin(); + for ( ; i != items.end(); ++i) { + if (button_text == ((std::string) i->get_label())) { + break; + } + offset += i->size_request().height; + } + if (i != items.end() && + y - offset >= monitor.get_y() && + y - offset + menu_req.height <= monitor.get_y() + monitor.get_height()) { + y -= offset; + } else if (y + allocation.get_height() + menu_req.height <= monitor.get_y() + monitor.get_height()) { + y += allocation.get_height(); /* a) */ + } else if ((y - menu_req.height) >= monitor.get_y()) { + y -= menu_req.height; /* b) */ + } else { + y = monitor.get_y() + max(0, monitor.get_height() - menu_req.height); + } + + push_in = false; +} + bool ArdourDropdown::on_button_press_event (GdkEventButton* ev) { if (ev->type == GDK_BUTTON_PRESS) { - _menu.popup (1, gtk_get_current_event_time()); + _menu.popup (sigc::mem_fun(this, &ArdourDropdown::position_menu), + 1, ev->time); } return true; } @@ -76,6 +184,10 @@ ArdourDropdown::on_scroll_event (GdkEventScroll* ev) { using namespace Menu_Helpers; + if (_scrolling_disabled) { + return false; + } + const MenuItem * current_active = _menu.get_active(); const MenuList& items = _menu.items (); int c = 0; @@ -115,7 +227,7 @@ ArdourDropdown::on_scroll_event (GdkEventScroll* ev) continue; } if (++i != items.end()) { - assert(c + 1 < items.size()); + assert(c + 1 < (int) items.size()); _menu.set_active(c + 1); _menu.activate_item(*i); } @@ -135,13 +247,17 @@ ArdourDropdown::clear_items () } void -ArdourDropdown::AddMenuElem (Menu_Helpers::MenuElem e) +ArdourDropdown::AddMenuElem (Menu_Helpers::Element e) { using namespace Menu_Helpers; MenuList& items = _menu.items (); - + items.push_back (e); } - +void +ArdourDropdown::disable_scrolling() +{ + _scrolling_disabled = true; +}