mirror of
https://github.com/Ardour/ardour.git
synced 2025-12-08 07:45:00 +01:00
Move anchored menu placement strategy to Gtkmm2ext utils
So that it can be used by others.
This commit is contained in:
Julien "_FrnchFrgg_" RIVAUD
parent
448902f870
commit
a51cd8689f
3 changed files with 115 additions and 98 deletions
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@ -69,104 +69,7 @@ ArdourDropdown::menu_size_request(Requisition *req) {
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void
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void
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ArdourDropdown::position_menu(int& x, int& y, bool& push_in) {
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ArdourDropdown::position_menu(int& x, int& y, bool& push_in) {
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using namespace Menu_Helpers;
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Gtkmm2ext::position_menu_anchored (&_menu, this, get_text(), x, y, push_in);
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/* TODO: lacks support for rotated dropdown buttons */
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if (!has_screen () || !get_has_window ()) {
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return;
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}
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Rectangle monitor;
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{
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const int monitor_num = get_screen ()->get_monitor_at_window (get_window ());
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get_screen ()->get_monitor_geometry ((monitor_num < 0) ? 0 : monitor_num,
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monitor);
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}
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const Requisition menu_req = _menu.size_request();
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const Rectangle allocation = get_allocation();
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/* The x and y position are handled separately.
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*
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* For the x position if the direction is LTR (or RTL), then we try in order:
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* a) align the left (right) of the menu with the left (right) of the button
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* if there's enough room until the right (left) border of the screen;
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* b) align the right (left) of the menu with the right (left) of the button
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* if there's enough room until the left (right) border of the screen;
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* c) align the right (left) border of the menu with the right (left) border
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* of the screen if there's enough space;
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* d) align the left (right) border of the menu with the left (right) border
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* of the screen, with the rightmost (leftmost) part of the menu that
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* overflows the screen.
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* XXX We always align left regardless of the direction because if x is
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* left of the current monitor, the menu popup code after us notices it
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* and enforces that the menu stays in the monitor that's at the left...*/
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get_window ()->get_origin (x, y);
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if (get_direction() == TEXT_DIR_RTL) {
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if (monitor.get_x() <= x + allocation.get_width() - menu_req.width) {
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/* a) align menu right and button right */
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x += allocation.get_width() - menu_req.width;
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} else if (x + menu_req.width <= monitor.get_x() + monitor.get_width()) {
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/* b) align menu left and button left: nothing to do*/
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} else if (menu_req.width > monitor.get_width()) {
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/* c) align menu left and screen left, guaranteed to fit */
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x = monitor.get_x();
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} else {
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/* d) XXX align left or the menu might change monitors */
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x = monitor.get_x();
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}
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} else { /* LTR */
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if (x + menu_req.width <= monitor.get_x() + monitor.get_width()) {
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/* a) align menu left and button left: nothing to do*/
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} else if (monitor.get_x() <= x + allocation.get_width() - menu_req.width) {
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/* b) align menu right and button right */
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x += allocation.get_width() - menu_req.width;
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} else if (menu_req.width > monitor.get_width()) {
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/* c) align menu right and screen right, guaranteed to fit */
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x = monitor.get_x() + monitor.get_width() - menu_req.width;
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} else {
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/* d) align left */
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x = monitor.get_x();
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}
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}
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/* For the y position, try in order:
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* a) if there is a menu item with the same text as the button, align it
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* with the button, unless that makes the menu overflow the monitor.
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* b) align the top of the menu with the bottom of the button if there is
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* enough room below the button;
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* c) align the bottom of the menu with the top of the button if there is
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* enough room above the button;
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* d) align the bottom of the menu with the bottom of the monitor if there
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* is enough room, but avoid moving the menu to another monitor */
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const MenuList& items = _menu.items ();
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const std::string button_text = get_text();
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int offset = 0;
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MenuList::const_iterator i = items.begin();
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for ( ; i != items.end(); ++i) {
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if (button_text == ((std::string) i->get_label())) {
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break;
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}
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offset += i->size_request().height;
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}
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if (i != items.end() &&
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y - offset >= monitor.get_y() &&
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y - offset + menu_req.height <= monitor.get_y() + monitor.get_height()) {
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y -= offset;
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} else if (y + allocation.get_height() + menu_req.height <= monitor.get_y() + monitor.get_height()) {
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y += allocation.get_height(); /* a) */
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} else if ((y - menu_req.height) >= monitor.get_y()) {
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y -= menu_req.height; /* b) */
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} else {
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y = monitor.get_y() + max(0, monitor.get_height() - menu_req.height);
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}
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push_in = false;
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}
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}
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bool
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bool
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@ -29,6 +29,7 @@
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#include <gtkmm/container.h>
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#include <gtkmm/container.h>
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#include <gtkmm/filechooser.h>
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#include <gtkmm/filechooser.h>
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#include <gtkmm/menu.h>
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#include <gtkmm/treeview.h>
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#include <gtkmm/treeview.h>
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#include <gdkmm/window.h> /* for WMDecoration */
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#include <gdkmm/window.h> /* for WMDecoration */
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#include <gdkmm/pixbuf.h>
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#include <gdkmm/pixbuf.h>
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@ -96,6 +97,11 @@ namespace Gtkmm2ext {
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int clip_height,
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int clip_height,
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Gdk::Color fg);
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Gdk::Color fg);
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LIBGTKMM2EXT_API void position_menu_anchored (const Gtk::Menu* const menu,
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Gtk::Widget* const anchor,
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const std::string& selected,
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int& x, int& y, bool& push_in);
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LIBGTKMM2EXT_API void set_popdown_strings (Gtk::ComboBoxText&,
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LIBGTKMM2EXT_API void set_popdown_strings (Gtk::ComboBoxText&,
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const std::vector<std::string>&);
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const std::vector<std::string>&);
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@ -31,6 +31,7 @@
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#include <gtkmm/label.h>
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#include <gtkmm/label.h>
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#include <gtkmm/comboboxtext.h>
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#include <gtkmm/comboboxtext.h>
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#include <gtkmm/tooltip.h>
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#include <gtkmm/tooltip.h>
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#include <gtkmm/menuitem.h>
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#include "gtkmm2ext/utils.h"
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#include "gtkmm2ext/utils.h"
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#include "gtkmm2ext/persistent_tooltip.h"
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#include "gtkmm2ext/persistent_tooltip.h"
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@ -308,6 +309,113 @@ Gtkmm2ext::pixbuf_from_string(const string& name, const Pango::FontDescription&
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return buf;
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return buf;
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}
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}
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void
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Gtkmm2ext::position_menu_anchored (const Gtk::Menu* const menu,
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Gtk::Widget* const anchor,
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const std::string& selected,
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int& x, int& y, bool& push_in) {
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using namespace Gdk;
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using namespace Gtk;
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using namespace Gtk::Menu_Helpers;
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/* TODO: lacks support for rotated dropdown buttons */
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if (!anchor->has_screen () || !anchor->get_has_window ()) {
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return;
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}
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Rectangle monitor;
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{
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const int monitor_num = anchor->get_screen ()->get_monitor_at_window (
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anchor->get_window ());
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anchor->get_screen ()->get_monitor_geometry (
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(monitor_num < 0) ? 0 : monitor_num, monitor);
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}
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const Requisition menu_req = menu->size_request();
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const Rectangle allocation = anchor->get_allocation();
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/* The x and y position are handled separately.
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*
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* For the x position if the direction is LTR (or RTL), then we try in order:
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* a) align the left (right) of the menu with the left (right) of the button
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* if there's enough room until the right (left) border of the screen;
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* b) align the right (left) of the menu with the right (left) of the button
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* if there's enough room until the left (right) border of the screen;
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* c) align the right (left) border of the menu with the right (left) border
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* of the screen if there's enough space;
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* d) align the left (right) border of the menu with the left (right) border
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* of the screen, with the rightmost (leftmost) part of the menu that
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* overflows the screen.
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* XXX We always align left regardless of the direction because if x is
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* left of the current monitor, the menu popup code after us notices it
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* and enforces that the menu stays in the monitor that's at the left...*/
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anchor->get_window ()->get_origin (x, y);
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if (anchor->get_direction() == TEXT_DIR_RTL) {
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if (monitor.get_x() <= x + allocation.get_width() - menu_req.width) {
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/* a) align menu right and button right */
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x += allocation.get_width() - menu_req.width;
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} else if (x + menu_req.width <= monitor.get_x() + monitor.get_width()) {
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/* b) align menu left and button left: nothing to do*/
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} else if (menu_req.width > monitor.get_width()) {
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/* c) align menu left and screen left, guaranteed to fit */
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x = monitor.get_x();
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} else {
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/* d) XXX align left or the menu might change monitors */
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x = monitor.get_x();
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}
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} else { /* LTR */
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if (x + menu_req.width <= monitor.get_x() + monitor.get_width()) {
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/* a) align menu left and button left: nothing to do*/
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} else if (monitor.get_x() <= x + allocation.get_width() - menu_req.width) {
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/* b) align menu right and button right */
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x += allocation.get_width() - menu_req.width;
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} else if (menu_req.width > monitor.get_width()) {
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/* c) align menu right and screen right, guaranteed to fit */
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x = monitor.get_x() + monitor.get_width() - menu_req.width;
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} else {
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/* d) align left */
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x = monitor.get_x();
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}
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}
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/* For the y position, try in order:
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* a) if there is a menu item with the same text as the button, align it
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* with the button, unless that makes the menu overflow the monitor.
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* b) align the top of the menu with the bottom of the button if there is
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* enough room below the button;
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* c) align the bottom of the menu with the top of the button if there is
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* enough room above the button;
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* d) align the bottom of the menu with the bottom of the monitor if there
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* is enough room, but avoid moving the menu to another monitor */
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const MenuList& items = menu->items ();
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int offset = 0;
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MenuList::const_iterator i = items.begin();
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for ( ; i != items.end(); ++i) {
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if (selected == ((std::string) i->get_label())) {
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break;
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}
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offset += i->size_request().height;
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}
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if (i != items.end() &&
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y - offset >= monitor.get_y() &&
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y - offset + menu_req.height <= monitor.get_y() + monitor.get_height()) {
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y -= offset;
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} else if (y + allocation.get_height() + menu_req.height <= monitor.get_y() + monitor.get_height()) {
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y += allocation.get_height(); /* a) */
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} else if ((y - menu_req.height) >= monitor.get_y()) {
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y -= menu_req.height; /* b) */
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} else {
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y = monitor.get_y() + max(0, monitor.get_height() - menu_req.height);
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}
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push_in = false;
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}
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void
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void
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Gtkmm2ext::set_popdown_strings (Gtk::ComboBoxText& cr, const vector<string>& strings)
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Gtkmm2ext::set_popdown_strings (Gtk::ComboBoxText& cr, const vector<string>& strings)
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{
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{
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