2 Copyright (C) 2004 Paul Davis
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 2 of the License, or
6 (at your option) any later version.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include <pbd/controllable.h>
28 #include <gtkmm2ext/gtk_ui.h>
29 #include <gtkmm2ext/utils.h>
30 #include <gtkmm2ext/barcontroller.h>
36 using namespace Gtkmm2ext;
38 BarController::BarController (Gtk::Adjustment& adj,
39 boost::shared_ptr<PBD::Controllable> mc)
49 switch_on_release = false;
52 layout = darea.create_pango_layout("");
54 set_shadow_type (SHADOW_NONE);
56 initial_value = adjustment.get_value ();
58 adjustment.signal_value_changed().connect (mem_fun (*this, &Gtk::Widget::queue_draw));
59 adjustment.signal_changed().connect (mem_fun (*this, &Gtk::Widget::queue_draw));
61 darea.add_events (Gdk::BUTTON_RELEASE_MASK|
62 Gdk::BUTTON_PRESS_MASK|
63 Gdk::POINTER_MOTION_MASK|
64 Gdk::ENTER_NOTIFY_MASK|
65 Gdk::LEAVE_NOTIFY_MASK|
68 darea.signal_expose_event().connect (mem_fun (*this, &BarController::expose));
69 darea.signal_motion_notify_event().connect (mem_fun (*this, &BarController::motion));
70 darea.signal_button_press_event().connect (mem_fun (*this, &BarController::button_press), false);
71 darea.signal_button_release_event().connect (mem_fun (*this, &BarController::button_release), false);
72 darea.signal_scroll_event().connect (mem_fun (*this, &BarController::scroll));
74 spinner.signal_activate().connect (mem_fun (*this, &BarController::entry_activated));
75 spinner.signal_focus_out_event().connect (mem_fun (*this, &BarController::entry_focus_out));
76 spinner.signal_input().connect (mem_fun (*this, &BarController::entry_input));
77 spinner.signal_output().connect (mem_fun (*this, &BarController::entry_output));
78 spinner.set_digits (3);
85 BarController::drop_grab ()
89 darea.remove_modal_grab();
95 BarController::button_press (GdkEventButton* ev)
99 if (binding_proxy.button_press_handler (ev)) {
103 switch (ev->button) {
105 if (ev->type == GDK_2BUTTON_PRESS) {
106 switch_on_release = true;
109 switch_on_release = false;
110 darea.add_modal_grab();
113 grab_window = ev->window;
120 fract = ev->x / (darea.get_width() - 2.0);
121 adjustment.set_value (adjustment.get_lower() + fract * (adjustment.get_upper() - adjustment.get_lower()));
135 BarController::button_release (GdkEventButton* ev)
139 switch (ev->button) {
141 if (switch_on_release) {
142 Glib::signal_idle().connect (mem_fun (*this, &BarController::switch_to_spinner));
146 if ((ev->state & (GDK_SHIFT_MASK|GDK_CONTROL_MASK)) == GDK_SHIFT_MASK) {
147 adjustment.set_value (initial_value);
151 if ((ev->state & (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) {
153 } else if (ev->state & GDK_CONTROL_MASK) {
159 mouse_control (ev->x, ev->window, scale);
177 BarController::scroll (GdkEventScroll* ev)
181 if ((ev->state & (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) {
183 } else if (ev->state & GDK_CONTROL_MASK) {
189 switch (ev->direction) {
191 case GDK_SCROLL_RIGHT:
192 adjustment.set_value (adjustment.get_value() + (scale * adjustment.get_step_increment()));
195 case GDK_SCROLL_DOWN:
196 case GDK_SCROLL_LEFT:
197 adjustment.set_value (adjustment.get_value() - (scale * adjustment.get_step_increment()));
205 BarController::motion (GdkEventMotion* ev)
213 if ((ev->state & (GDK_SHIFT_MASK|GDK_CONTROL_MASK)) == GDK_SHIFT_MASK) {
217 if ((ev->state & (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) {
219 } else if (ev->state & GDK_CONTROL_MASK) {
225 return mouse_control (ev->x, ev->window, scale);
229 BarController::mouse_control (double x, GdkWindow* window, double scaling)
234 if (window != grab_window) {
236 grab_window = window;
246 fract = scaling * (delta / (darea.get_width() - 2));
247 fract = min (1.0, fract);
248 fract = max (-1.0, fract);
249 adjustment.set_value (adjustment.get_value() + fract * (adjustment.get_upper() - adjustment.get_lower()));
261 BarController::expose (GdkEventExpose* event)
263 Glib::RefPtr<Gdk::Window> win (darea.get_window());
265 gint x1=0, x2=0, y1=0, y2=0;
269 fract = ((adjustment.get_value() - adjustment.get_lower()) /
270 (adjustment.get_upper() - adjustment.get_lower()));
274 w = darea.get_width() - 1;
275 h = darea.get_height();
276 x1 = (gint) floor (w * fract);
282 parent = get_parent();
285 win->draw_rectangle (parent->get_style()->get_fg_gc (parent->get_state()),
287 0, 0, darea.get_width(), darea.get_height());
292 win->draw_rectangle (get_style()->get_bg_gc (get_state()),
294 0, 0, darea.get_width() - ((darea.get_width()+1) % 2), darea.get_height());
297 win->draw_line (get_style()->get_fg_gc (get_state()), x1, 0, x1, h);
305 w = darea.get_width() - 2;
306 h = darea.get_height() - 2;
309 x2 = (gint) floor (w * fract);
313 win->draw_rectangle (get_style()->get_bg_gc (get_state()),
315 0, 0, darea.get_width() - 1, darea.get_height() - 1);
317 /* draw active box */
319 win->draw_rectangle (get_style()->get_fg_gc (get_state()),
326 /* draw inactive box */
328 win->draw_rectangle (get_style()->get_fg_gc (STATE_INSENSITIVE),
348 std::string const label = get_label (xpos);
350 if (!label.empty()) {
352 layout->set_text (label);
355 layout->get_pixel_size (width, height);
358 xpos = max (3, 1 + (x2 - (width/2)));
359 xpos = min (darea.get_width() - width - 3, xpos);
362 win->draw_layout (get_style()->get_text_gc (get_state()),
364 (darea.get_height()/2) - (height/2),
372 BarController::set_style (Style s)
379 BarController::switch_to_bar ()
387 if (get_child() == &darea) {
400 BarController::switch_to_spinner ()
408 if (get_child() == &spinner) {
415 spinner.select_region (0, spinner.get_text_length());
416 spinner.grab_focus ();
423 BarController::entry_activated ()
425 string text = spinner.get_text ();
428 if (sscanf (text.c_str(), "%f", &val) == 1) {
429 adjustment.set_value (val);
436 BarController::entry_focus_out (GdkEventFocus* ev)
443 BarController::set_use_parent (bool yn)
450 BarController::set_sensitive (bool yn)
452 Frame::set_sensitive (yn);
453 darea.set_sensitive (yn);
457 BarController::entry_input (double* v)
463 BarController::entry_output ()