git-svn-id: svn://localhost/ardour2/branches/3.0@13611 d708f5d6-7413-0410-9779-e7cbd77b26cf
683 lines
17 KiB
C++
683 lines
17 KiB
C++
/*
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Copyright (C) 2004 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include <string>
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#include <sstream>
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#include <climits>
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#include <cstdio>
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#include <cmath>
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#include <algorithm>
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#include <pbd/controllable.h>
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#include <pbd/locale_guard.h>
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#include "gtkmm2ext/gtk_ui.h"
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#include "gtkmm2ext/utils.h"
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#include "gtkmm2ext/keyboard.h"
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#include "gtkmm2ext/barcontroller.h"
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#include "i18n.h"
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using namespace std;
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using namespace Gtk;
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using namespace Gtkmm2ext;
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BarController::BarController (Gtk::Adjustment& adj,
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boost::shared_ptr<PBD::Controllable> mc)
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: adjustment (adj),
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binding_proxy (mc),
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spinner (adjustment)
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{
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_style = LeftToRight;
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grabbed = false;
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switching = false;
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switch_on_release = false;
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use_parent = false;
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logarithmic = false;
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layout = darea.create_pango_layout("");
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set_shadow_type (SHADOW_NONE);
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initial_value = adjustment.get_value ();
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adjustment.signal_value_changed().connect (mem_fun (*this, &Gtk::Widget::queue_draw));
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adjustment.signal_changed().connect (mem_fun (*this, &Gtk::Widget::queue_draw));
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darea.add_events (Gdk::BUTTON_RELEASE_MASK|
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Gdk::BUTTON_PRESS_MASK|
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Gdk::POINTER_MOTION_MASK|
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Gdk::ENTER_NOTIFY_MASK|
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Gdk::LEAVE_NOTIFY_MASK|
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Gdk::SCROLL_MASK);
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darea.signal_expose_event().connect (mem_fun (*this, &BarController::expose));
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darea.signal_motion_notify_event().connect (mem_fun (*this, &BarController::motion));
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darea.signal_button_press_event().connect (mem_fun (*this, &BarController::button_press), false);
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darea.signal_button_release_event().connect (mem_fun (*this, &BarController::button_release), false);
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darea.signal_scroll_event().connect (mem_fun (*this, &BarController::scroll));
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spinner.signal_activate().connect (mem_fun (*this, &BarController::entry_activated));
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spinner.signal_focus_out_event().connect (mem_fun (*this, &BarController::entry_focus_out));
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spinner.signal_input().connect (mem_fun (*this, &BarController::entry_input));
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spinner.signal_output().connect (mem_fun (*this, &BarController::entry_output));
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spinner.set_digits (9);
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spinner.set_numeric (true);
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add (darea);
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show_all ();
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}
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BarController::~BarController ()
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{
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// delete pattern;
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// delete shine_pattern;
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}
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void
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BarController::drop_grab ()
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{
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if (grabbed) {
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grabbed = false;
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darea.remove_modal_grab();
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StopGesture ();
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}
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}
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bool
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BarController::button_press (GdkEventButton* ev)
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{
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double fract;
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if (binding_proxy.button_press_handler (ev)) {
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return true;
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}
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switch (ev->button) {
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case 1:
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if (ev->type == GDK_2BUTTON_PRESS) {
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switch_on_release = true;
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drop_grab ();
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} else {
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switch_on_release = false;
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darea.add_modal_grab();
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grabbed = true;
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grab_x = ev->x;
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grab_window = ev->window;
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StartGesture ();
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}
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return true;
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break;
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case 2:
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fract = ev->x / (darea.get_width() - 2.0);
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adjustment.set_value (adjustment.get_lower() + fract * (adjustment.get_upper() - adjustment.get_lower()));
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case 3:
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break;
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case 4:
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case 5:
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break;
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}
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return false;
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}
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bool
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BarController::button_release (GdkEventButton* ev)
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{
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drop_grab ();
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switch (ev->button) {
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case 1:
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if (switch_on_release) {
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Glib::signal_idle().connect (mem_fun (*this, &BarController::switch_to_spinner));
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return true;
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}
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if ((ev->state & (Keyboard::TertiaryModifier|Keyboard::PrimaryModifier)) == Keyboard::TertiaryModifier) {
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adjustment.set_value (initial_value);
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} else {
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double scale;
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if ((ev->state & (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) == (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
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scale = 0.01;
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} else if (ev->state & Keyboard::PrimaryModifier) {
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scale = 0.1;
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} else {
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scale = 1.0;
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}
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mouse_control (ev->x, ev->window, scale);
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}
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break;
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case 2:
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break;
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case 3:
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return false;
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default:
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break;
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}
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return true;
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}
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bool
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BarController::scroll (GdkEventScroll* ev)
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{
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double scale;
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if ((ev->state & (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) == (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
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scale = 0.01;
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} else if (ev->state & Keyboard::PrimaryModifier) {
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scale = 0.1;
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} else {
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scale = 1.0;
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}
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switch (ev->direction) {
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case GDK_SCROLL_UP:
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case GDK_SCROLL_RIGHT:
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adjustment.set_value (adjustment.get_value() + (scale * adjustment.get_step_increment()));
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break;
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case GDK_SCROLL_DOWN:
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case GDK_SCROLL_LEFT:
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adjustment.set_value (adjustment.get_value() - (scale * adjustment.get_step_increment()));
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break;
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}
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return true;
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}
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bool
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BarController::motion (GdkEventMotion* ev)
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{
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double scale;
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if (!grabbed) {
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return true;
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}
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if ((ev->state & (Keyboard::TertiaryModifier|Keyboard::PrimaryModifier)) == Keyboard::TertiaryModifier) {
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return TRUE;
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}
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if ((ev->state & (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) == (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
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scale = 0.01;
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} else if (ev->state & Keyboard::PrimaryModifier) {
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scale = 0.1;
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} else {
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scale = 1.0;
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}
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return mouse_control (ev->x, ev->window, scale);
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}
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gint
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BarController::mouse_control (double x, GdkWindow* window, double scaling)
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{
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double fract = 0.0;
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double delta;
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if (window != grab_window) {
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grab_x = x;
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grab_window = window;
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return TRUE;
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}
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delta = x - grab_x;
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grab_x = x;
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switch (_style) {
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case Line:
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case Blob:
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case LeftToRight:
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case CenterOut:
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fract = scaling * (delta / (darea.get_width() - 2));
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fract = min (1.0, fract);
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fract = max (-1.0, fract);
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adjustment.set_value (adjustment.get_value() + fract * (adjustment.get_upper() - adjustment.get_lower()));
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break;
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default:
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fract = 0.0;
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}
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return TRUE;
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}
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void
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BarController::create_patterns ()
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{
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Glib::RefPtr<Gdk::Window> win (darea.get_window());
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Cairo::RefPtr<Cairo::Context> context = win->create_cairo_context();
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Gdk::Color c = get_style()->get_fg (get_state());
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float r, g, b;
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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float rheight = darea.get_height()-2;
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cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, rheight);
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cairo_pattern_add_color_stop_rgba (pat, 0, r*0.3,g*0.3,b*0.3, 1.0);
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cairo_pattern_add_color_stop_rgba (pat, 1, r, g, b, 1.0);
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Cairo::RefPtr<Cairo::Pattern> p (new Cairo::Pattern (pat, false));
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pattern = p;
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cairo_pattern_destroy(pat);
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pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, rheight);
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cairo_pattern_add_color_stop_rgba (pat, 0, 1,1,1,0.0);
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cairo_pattern_add_color_stop_rgba (pat, 0.2, 1,1,1,0.3);
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cairo_pattern_add_color_stop_rgba (pat, 0.5, 1,1,1,0.0);
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cairo_pattern_add_color_stop_rgba (pat, 1, 1,1,1,0.0);
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Cairo::RefPtr<Cairo::Pattern> p2 (new Cairo::Pattern (pat, false));
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shine_pattern = p2;
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cairo_pattern_destroy(pat);
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}
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bool
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BarController::expose (GdkEventExpose* /*event*/)
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{
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Glib::RefPtr<Gdk::Window> win (darea.get_window());
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Cairo::RefPtr<Cairo::Context> context = win->create_cairo_context();
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if( !pattern )
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create_patterns();
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Gdk::Color c;
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Widget* parent;
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gint x1=0, x2=0, y1=0, y2=0;
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gint w, h;
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double fract, radius;
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float r, g, b;
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fract = ((adjustment.get_value() - adjustment.get_lower()) /
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(adjustment.get_upper() - adjustment.get_lower()));
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switch (_style) {
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case Line:
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w = darea.get_width() - 1;
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h = darea.get_height();
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x1 = (gint) floor (w * fract);
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x2 = x1;
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y1 = 0;
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y2 = h - 1;
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if (use_parent) {
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parent = get_parent();
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if (parent) {
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c = parent->get_style()->get_fg (parent->get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (r, g, b);
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context->rectangle (0, 0, darea.get_width(), darea.get_height());
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context->fill ();
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}
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} else {
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c = get_style()->get_bg (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (r, g, b);
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context->rectangle (0, 0, darea.get_width() - ((darea.get_width()+1) % 2), darea.get_height());
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context->fill ();
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}
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c = get_style()->get_fg (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (r, g, b);
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context->move_to (x1, 0);
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context->line_to (x1, h);
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context->stroke ();
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break;
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case Blob:
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w = darea.get_width() - 1;
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h = darea.get_height();
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x1 = (gint) floor (w * fract);
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x2 = min (w-2,h-2);
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if (use_parent) {
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parent = get_parent();
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if (parent) {
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c = parent->get_style()->get_fg (parent->get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (r, g, b);
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context->rectangle (0, 0, darea.get_width(), darea.get_height());
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context->fill ();
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}
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} else {
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c = get_style()->get_bg (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (r, g, b);
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context->rectangle (0, 0, darea.get_width() - ((darea.get_width()+1) % 2), darea.get_height());
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context->fill ();
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}
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c = get_style()->get_fg (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->arc (x1, ((h-2)/2)-1, x2, 0, 2*M_PI);
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break;
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case CenterOut:
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w = darea.get_width();
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h = darea.get_height()-2;
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if (use_parent) {
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parent = get_parent();
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if (parent) {
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c = parent->get_style()->get_fg (parent->get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (r, g, b);
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context->rectangle (0, 0, darea.get_width(), darea.get_height());
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context->fill ();
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}
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} else {
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c = get_style()->get_bg (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (r, g, b);
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context->rectangle (0, 0, darea.get_width(), darea.get_height());
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context->fill ();
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}
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c = get_style()->get_fg (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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x1 = (w/2) - ((w*fract)/2); // center, back up half the bar width
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context->set_source_rgb (r, g, b);
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context->rectangle (x1, 1, w*fract, h);
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context->fill ();
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break;
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case LeftToRight:
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w = darea.get_width() - 2;
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h = darea.get_height() - 2;
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x2 = (gint) floor (w * (0.1+0.9*fract));
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y2 = h;
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radius = 4;
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/* border */
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c = get_style()->get_bg (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (0,0,0);
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rounded_rectangle (context, 0, 0, darea.get_width(), darea.get_height() , radius);
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context->fill ();
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/* draw active box */
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c = get_style()->get_fg (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source (pattern);
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rounded_rectangle (context, 1, 1, x2, y2, radius-1.5);
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context->fill ();
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context->set_source (shine_pattern);
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rounded_rectangle (context, 2, 3, x2-2, y2-8, radius-2);
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context->fill ();
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/* draw inactive box */
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// c = get_style()->get_fg (STATE_INSENSITIVE);
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// r = c.get_red_p ();
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// g = c.get_green_p ();
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// b = c.get_blue_p ();
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// context->set_source_rgb (r, g, b);
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// rounded_rectangle (context, 1 + x2, 1 + y1, w - x2, y2);
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// context->fill ();
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break;
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case RightToLeft:
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break;
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case TopToBottom:
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break;
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case BottomToTop:
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break;
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}
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/* draw label */
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double xpos = -1;
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std::string const label = get_label (xpos);
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if (!label.empty()) {
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layout->set_text (label);
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int width, height, x;
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layout->get_pixel_size (width, height);
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if (xpos == -1) {
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x = max (3, 1 + (x2 - (width/2)));
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x = min (darea.get_width() - width - 3, (int) lrint (xpos));
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} else {
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x = lrint (darea.get_width() * xpos);
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}
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c = get_style()->get_text (get_state());
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r = c.get_red_p ();
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g = c.get_green_p ();
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b = c.get_blue_p ();
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context->set_source_rgb (r, g, b);
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context->move_to (x, (darea.get_height()/2) - (height/2));
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layout->show_in_cairo_context (context);
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}
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return true;
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}
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void
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BarController::set_style (barStyle s)
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{
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_style = s;
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darea.queue_draw ();
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|
}
|
|
|
|
gint
|
|
BarController::switch_to_bar ()
|
|
{
|
|
if (switching) {
|
|
return FALSE;
|
|
}
|
|
|
|
switching = true;
|
|
|
|
if (get_child() == &darea) {
|
|
return FALSE;
|
|
}
|
|
|
|
remove ();
|
|
add (darea);
|
|
darea.show ();
|
|
|
|
switching = false;
|
|
|
|
SpinnerActive (false); /* EMIT SIGNAL */
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
gint
|
|
BarController::switch_to_spinner ()
|
|
{
|
|
if (switching) {
|
|
return FALSE;
|
|
}
|
|
|
|
switching = true;
|
|
|
|
if (get_child() == &spinner) {
|
|
return FALSE;
|
|
}
|
|
|
|
remove ();
|
|
add (spinner);
|
|
spinner.show ();
|
|
spinner.select_region (0, spinner.get_text_length());
|
|
spinner.grab_focus ();
|
|
|
|
switching = false;
|
|
|
|
SpinnerActive (true); /* EMIT SIGNAL */
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
BarController::entry_activated ()
|
|
{
|
|
switch_to_bar ();
|
|
}
|
|
|
|
bool
|
|
BarController::entry_focus_out (GdkEventFocus* /*ev*/)
|
|
{
|
|
entry_activated ();
|
|
return true;
|
|
}
|
|
|
|
void
|
|
BarController::set_use_parent (bool yn)
|
|
{
|
|
use_parent = yn;
|
|
queue_draw ();
|
|
}
|
|
|
|
void
|
|
BarController::set_sensitive (bool yn)
|
|
{
|
|
Frame::set_sensitive (yn);
|
|
darea.set_sensitive (yn);
|
|
}
|
|
|
|
/*
|
|
This is called when we need to update the adjustment with the value
|
|
from the spinner's text entry.
|
|
|
|
We need to use Gtk::Entry::get_text to avoid recursive nastiness :)
|
|
|
|
If we're not in logarithmic mode we can return false to use the
|
|
default conversion.
|
|
|
|
In theory we should check for conversion errors but set numeric
|
|
mode to true on the spinner prevents invalid input.
|
|
*/
|
|
int
|
|
BarController::entry_input (double* new_value)
|
|
{
|
|
if (!logarithmic) {
|
|
return false;
|
|
}
|
|
|
|
// extract a double from the string and take its log
|
|
Entry *entry = dynamic_cast<Entry *>(&spinner);
|
|
double value;
|
|
|
|
{
|
|
// Switch to user's preferred locale so that
|
|
// if they use different LC_NUMERIC conventions,
|
|
// we will honor them.
|
|
|
|
PBD::LocaleGuard lg ("");
|
|
sscanf (entry->get_text().c_str(), "%lf", &value);
|
|
}
|
|
|
|
*new_value = log(value);
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
This is called when we need to update the spinner's text entry
|
|
with the value of the adjustment.
|
|
|
|
We need to use Gtk::Entry::set_text to avoid recursive nastiness :)
|
|
|
|
If we're not in logarithmic mode we can return false to use the
|
|
default conversion.
|
|
*/
|
|
bool
|
|
BarController::entry_output ()
|
|
{
|
|
if (!logarithmic) {
|
|
return false;
|
|
}
|
|
|
|
// generate the exponential and turn it into a string
|
|
// convert to correct locale.
|
|
|
|
stringstream stream;
|
|
string str;
|
|
|
|
char buf[128];
|
|
|
|
{
|
|
// Switch to user's preferred locale so that
|
|
// if they use different LC_NUMERIC conventions,
|
|
// we will honor them.
|
|
|
|
PBD::LocaleGuard lg ("");
|
|
snprintf (buf, sizeof (buf), "%g", exp (spinner.get_adjustment()->get_value()));
|
|
}
|
|
|
|
Entry *entry = dynamic_cast<Entry *>(&spinner);
|
|
entry->set_text(buf);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|