most of the 2.X->3.0 commit (up to rev 4299) except for gtk2_ardour/editor_canvas...
[ardour.git] / gtk2_ardour / time_axis_view_item.cc
index a0ceb27293fa9cc8007c7b22e01ebada0cd390af..64690174694adc74b3e031b6891db8382fc840f8 100644 (file)
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
 #include <pbd/error.h>
+#include <pbd/stacktrace.h>
 
 #include <ardour/types.h>
 #include <ardour/ardour.h>
@@ -32,6 +32,7 @@
 #include "utils.h"
 #include "canvas_impl.h"
 #include "rgb_macros.h"
+#include "ardour_ui.h"
 
 #include "i18n.h"
 
@@ -39,11 +40,12 @@ using namespace std;
 using namespace Editing;
 using namespace Glib;
 using namespace PBD;
+using namespace ARDOUR;
 
 //------------------------------------------------------------------------------
 /** Initialize const static memeber data */
 
-Pango::FontDescription TimeAxisViewItem::NAME_FONT;
+Pango::FontDescription* TimeAxisViewItem::NAME_FONT = 0;
 bool TimeAxisViewItem::have_name_font = false;
 const double TimeAxisViewItem::NAME_X_OFFSET = 15.0;
 const double TimeAxisViewItem::GRAB_HANDLE_LENGTH = 6 ;
@@ -68,9 +70,9 @@ double TimeAxisViewItem::NAME_HIGHLIGHT_THRESH;
  * @param duration the duration of this item
  */
 TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color& base_color, 
-                                  jack_nframes_t start, jack_nframes_t duration,
+                                  nframes_t start, nframes_t duration, bool recording,
                                   Visibility vis)
-       : trackview (tv)
+       : trackview (tv), _recregion(recording)
 {
        if (!have_name_font) {
 
@@ -86,44 +88,73 @@ TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group&
                int width;
                int height;
 
-               layout->set_font_description (NAME_FONT);
+               layout->set_font_description (*NAME_FONT);
                Gtkmm2ext::get_ink_pixel_size (layout, width, height);
 
-               NAME_Y_OFFSET = height + 4;
+               NAME_Y_OFFSET = height + 5;
                NAME_HIGHLIGHT_SIZE = height + 6;
                NAME_HIGHLIGHT_THRESH = NAME_HIGHLIGHT_SIZE * 2;
 
-               cerr << "name highlight threshold = " << NAME_HIGHLIGHT_THRESH << endl;
-
                have_name_font = true;
        }
 
+       group = new ArdourCanvas::Group (parent);
+       
+       init (it_name, spu, base_color, start, duration, vis);
+
+}
+
+TimeAxisViewItem::TimeAxisViewItem (const TimeAxisViewItem& other)
+       : trackview (other.trackview)
+{
+
+       Gdk::Color c;
+       int r,g,b,a;
+
+       UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
+       c.set_rgb_p (r/255.0, g/255.0, b/255.0);
+
+       /* share the other's parent, but still create a new group */
+
+       Gnome::Canvas::Group* parent = other.group->property_parent();
+       
+       group = new ArdourCanvas::Group (*parent);
+
+       init (other.item_name, other.samples_per_unit, c, other.frame_position, other.item_duration, other.visibility);
+}
+
+
+void
+TimeAxisViewItem::init (const string& it_name, double spu, Gdk::Color& base_color, nframes_t start, nframes_t duration, Visibility vis)
+{
        item_name = it_name ;
+       name_text_width = ::pixel_width (it_name, *NAME_FONT);
+       last_name_text_width = 0;
        samples_per_unit = spu ;
        should_show_selection = true;
        frame_position = start ;
        item_duration = duration ;
        name_connected = false;
-       fill_opacity = 50;
+       // why? fill_opacity = 60;
        position_locked = false ;
        max_item_duration = ARDOUR::max_frames;
        min_item_duration = 0 ;
        show_vestigial = true;
        visibility = vis;
+       _sensitive = true;
 
        if (duration == 0) {
                warning << "Time Axis Item Duration == 0" << endl ;
        }
 
-       group = new ArdourCanvas::Group (parent);
-
        vestigial_frame = new ArdourCanvas::SimpleRect (*group);
        vestigial_frame->property_x1() = (double) 0.0;
        vestigial_frame->property_y1() = (double) 1.0;
-       vestigial_frame->property_x2() = 2.0;
-       vestigial_frame->property_y2() = (double) trackview.height;
-       vestigial_frame->property_outline_color_rgba() = color_map[cVestigialFrameOutline];
-       vestigial_frame->property_fill_color_rgba() = color_map[cVestigialFrameFill];
+       vestigial_frame->property_x2() = (double) 2.0;
+       vestigial_frame->property_y2() = (double) trackview.current_height();
+       vestigial_frame->property_outline_what() = 0xF;
+       vestigial_frame->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_VestigialFrame.get();
+       vestigial_frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_VestigialFrame.get();
        vestigial_frame->hide ();
 
        if (visibility & ShowFrame) {
@@ -131,16 +162,21 @@ TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group&
                frame->property_x1() = (double) 0.0;
                frame->property_y1() = (double) 1.0;
                frame->property_x2() = (double) trackview.editor.frame_to_pixel(duration);
-               frame->property_y2() = (double) trackview.height;
-               frame->property_outline_color_rgba() = color_map[cTimeAxisFrameOutline];
-               frame->property_fill_color_rgba() = color_map[cTimeAxisFrameFill];
+               frame->property_y2() = (double) trackview.current_height();
+               frame->property_outline_pixels() = 1;
+               frame->property_outline_what() = 0xF;
+               frame->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 
                /* by default draw all 4 edges */
 
                uint32_t outline_what = 0x1|0x2|0x4|0x8;
 
-               if (visibility & HideFrameLR) {
-                       outline_what &= ~(0x1 | 0x2);
+               if (visibility & HideFrameLeft) {
+                       outline_what &= ~(0x1);
+               }
+
+               if (visibility & HideFrameRight) {
+                       outline_what &= ~(0x2);
                }
 
                if (visibility & HideFrameTB) {
@@ -162,10 +198,8 @@ TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group&
                        name_highlight->property_x1() = (double) 1.0;
                        name_highlight->property_x2() = (double) (trackview.editor.frame_to_pixel(item_duration)) - 1;
                }
-               name_highlight->property_y1() = (double) (trackview.height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE);
-               name_highlight->property_y2() = (double) (trackview.height - 1);
-               name_highlight->property_outline_color_rgba() = color_map[cNameHighlightFill];
-               name_highlight->property_fill_color_rgba() = color_map[cNameHighlightOutline];
+               name_highlight->property_y1() = (double) (trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE);
+               name_highlight->property_y2() = (double) (trackview.current_height() - 1);
 
                name_highlight->set_data ("timeaxisviewitem", this);
 
@@ -176,11 +210,11 @@ TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group&
        if (visibility & ShowNameText) {
                name_text = new ArdourCanvas::Text (*group);
                name_text->property_x() = (double) TimeAxisViewItem::NAME_X_OFFSET;
-               /* trackview.height is the bottom of the trackview. subtract 1 to get back to the bottom of the highlight,
+               /* trackview.current_height() is the bottom of the trackview. subtract 1 to get back to the bottom of the highlight,
                   then NAME_Y_OFFSET to position the text in the vertical center of the highlight
                */
-               name_text->property_y() = (double) trackview.height - 1.0 - TimeAxisViewItem::NAME_Y_OFFSET;
-               name_text->property_font_desc() = NAME_FONT;
+               name_text->property_y() = (double) trackview.current_height() - 1.0 - TimeAxisViewItem::NAME_Y_OFFSET;
+               name_text->property_font_desc() = *NAME_FONT;
                name_text->property_anchor() = Gtk::ANCHOR_NW;
 
                name_text->set_data ("timeaxisviewitem", this);
@@ -197,16 +231,14 @@ TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group&
                frame_handle_start->property_x2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH;
                frame_handle_start->property_y1() = (double) 1.0;
                frame_handle_start->property_y2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH+1;
-               frame_handle_start->property_outline_color_rgba() = color_map[cFrameHandleStartOutline];
-               frame_handle_start->property_fill_color_rgba() = color_map[cFrameHandleStartFill];
-               
+               frame_handle_start->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_FrameHandle.get();
+
                frame_handle_end = new ArdourCanvas::SimpleRect (*group);
                frame_handle_end->property_x1() = (double) (trackview.editor.frame_to_pixel(get_duration())) - (TimeAxisViewItem::GRAB_HANDLE_LENGTH);
                frame_handle_end->property_x2() = (double) trackview.editor.frame_to_pixel(get_duration());
                frame_handle_end->property_y1() = (double) 1;
                frame_handle_end->property_y2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH + 1;
-               frame_handle_end->property_outline_color_rgba() = color_map[cFrameHandleEndOutline];
-               frame_handle_end->property_fill_color_rgba() = color_map[cFrameHandleEndFill];
+               frame_handle_end->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_FrameHandle.get();
 
        } else {
                frame_handle_start = 0;
@@ -219,7 +251,6 @@ TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group&
        set_position (start, this) ;
 }
 
-
 /**
  * Destructor
  */
@@ -240,7 +271,7 @@ TimeAxisViewItem::~TimeAxisViewItem()
  * @return true if the position change was a success, false otherwise
  */
 bool
-TimeAxisViewItem::set_position(jack_nframes_t pos, void* src, double* delta)
+TimeAxisViewItem::set_position(nframes_t pos, void* src, double* delta)
 {
        if (position_locked) {
                return false;
@@ -280,7 +311,7 @@ TimeAxisViewItem::set_position(jack_nframes_t pos, void* src, double* delta)
  *
  * @return the position of this item
  */
-jack_nframes_t
+nframes_t
 TimeAxisViewItem::get_position() const
 {
        return frame_position;
@@ -294,7 +325,7 @@ TimeAxisViewItem::get_position() const
  * @return true if the duration change was succesful, false otherwise
  */
 bool
-TimeAxisViewItem::set_duration (jack_nframes_t dur, void* src)
+TimeAxisViewItem::set_duration (nframes_t dur, void* src)
 {
        if ((dur > max_item_duration) || (dur < min_item_duration)) {
                warning << string_compose (_("new duration %1 frames is out of bounds for %2"), get_item_name(), dur)
@@ -308,9 +339,7 @@ TimeAxisViewItem::set_duration (jack_nframes_t dur, void* src)
 
        item_duration = dur;
        
-       double pixel_width = trackview.editor.frame_to_pixel (dur);
-
-       reset_width_dependent_items (pixel_width);
+       reset_width_dependent_items (trackview.editor.frame_to_pixel (dur));
        
        DurationChanged (dur, src) ; /* EMIT_SIGNAL */
        return true;
@@ -320,7 +349,7 @@ TimeAxisViewItem::set_duration (jack_nframes_t dur, void* src)
  * Returns the duration of this item
  *
  */
-jack_nframes_t
+nframes_t
 TimeAxisViewItem::get_duration() const
 {
        return (item_duration);
@@ -333,7 +362,7 @@ TimeAxisViewItem::get_duration() const
  * @param src the identity of the object that initiated the change
  */
 void
-TimeAxisViewItem::set_max_duration(jack_nframes_t dur, void* src)
+TimeAxisViewItem::set_max_duration(nframes_t dur, void* src)
 {
        max_item_duration = dur ;
        MaxDurationChanged(max_item_duration, src) ; /* EMIT_SIGNAL */
@@ -344,7 +373,7 @@ TimeAxisViewItem::set_max_duration(jack_nframes_t dur, void* src)
  *
  * @return the maximum duration that this item may be set to
  */
-jack_nframes_t
+nframes_t
 TimeAxisViewItem::get_max_duration() const
 {
        return (max_item_duration) ;
@@ -357,7 +386,7 @@ TimeAxisViewItem::get_max_duration() const
  * @param src the identity of the object that initiated the change
  */
 void
-TimeAxisViewItem::set_min_duration(jack_nframes_t dur, void* src)
+TimeAxisViewItem::set_min_duration(nframes_t dur, void* src)
 {
        min_item_duration = dur ;
        MinDurationChanged(max_item_duration, src) ; /* EMIT_SIGNAL */
@@ -368,7 +397,7 @@ TimeAxisViewItem::set_min_duration(jack_nframes_t dur, void* src)
  *
  * @return the nimum duration that this item mey be set to
  */
-jack_nframes_t
+nframes_t
 TimeAxisViewItem::get_min_duration() const
 {
        return(min_item_duration) ;
@@ -462,6 +491,7 @@ TimeAxisViewItem::set_item_name(std::string new_name, void* src)
        if (new_name != item_name) {
                std::string temp_name = item_name ;
                item_name = new_name ;
+               name_text_width = ::pixel_width (new_name, *NAME_FONT);
                NameChanged (item_name, temp_name, src) ; /* EMIT_SIGNAL */
        }
 }
@@ -527,10 +557,12 @@ TimeAxisViewItem::get_time_axis_view()
  * @param new_name the new name text to display
  */
 void
-TimeAxisViewItem::set_name_text(std::string new_name)
+TimeAxisViewItem::set_name_text(const ustring& new_name)
 {
        if (name_text) {
-               name_text->property_text() = new_name.c_str();
+               name_text->property_text() = new_name;
+               name_text_width = pixel_width (new_name, *NAME_FONT);
+               name_text_size_cache.clear ();
        }
 }
 
@@ -540,7 +572,7 @@ TimeAxisViewItem::set_name_text(std::string new_name)
  * @param h the new height
  */            
 void
-TimeAxisViewItem::set_height(double height)
+TimeAxisViewItem::set_height (double height)
 {
        if (name_highlight) {
                if (height < NAME_HIGHLIGHT_THRESH) {
@@ -605,7 +637,7 @@ TimeAxisViewItem::get_canvas_frame()
 /**
  * 
  */
-ArdourCanvas::Item*
+ArdourCanvas::Group*
 TimeAxisViewItem::get_canvas_group()
 {
        return (group) ;
@@ -646,7 +678,7 @@ TimeAxisViewItem::compute_colors(Gdk::Color& base_color)
        r = base_color.get_red()/256 ;
        g = base_color.get_green()/256 ;
        b = base_color.get_blue()/256 ;
-       fill_color = RGBA_TO_UINT(r,g,b,255) ;
+       fill_color = RGBA_TO_UINT(r,g,b,160) ;
 
        /*  for minor colors:
                if the overall saturation is strong, make the minor colors light.
@@ -762,11 +794,16 @@ TimeAxisViewItem::set_frame_color()
                uint32_t r,g,b,a;
                
                if (_selected && should_show_selection) {
-                       UINT_TO_RGBA(color_map[cSelectedFrameBase], &r, &g, &b, &a);
-                       frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity);
+                       UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get(), &r, &g, &b, &a);
+                       frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, a);
                } else {
-                       UINT_TO_RGBA(color_map[cFrameBase], &r, &g, &b, &a);
-                       frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity);
+                       if (_recregion) {
+                               UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_RecordingRect.get(), &r, &g, &b, &a);
+                               frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, a);
+                       } else {
+                               UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_FrameBase.get(), &r, &g, &b, &a);
+                               frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity ? fill_opacity : a);
+                       }
                }
        }
 }
@@ -780,11 +817,11 @@ TimeAxisViewItem::set_trim_handle_colors()
 {
        if (frame_handle_start) {
                if (position_locked) {
-                       frame_handle_start->property_fill_color_rgba() = color_map[cTrimHandleLockedStart];
-                       frame_handle_end->property_fill_color_rgba() = color_map[cTrimHandleLockedEnd];
+                       frame_handle_start->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TrimHandleLocked.get();
+                       frame_handle_end->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TrimHandleLocked.get();
                } else {
-                       frame_handle_start->property_fill_color_rgba() = color_map[cTrimHandleStart];
-                       frame_handle_end->property_fill_color_rgba() = color_map[cTrimHandleEnd];
+                       frame_handle_start->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TrimHandle.get();
+                       frame_handle_end->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TrimHandle.get();
                }
        }
 }
@@ -849,7 +886,7 @@ TimeAxisViewItem::reset_width_dependent_items (double pixel_width)
                                }
                        } else {
                                name_highlight->show();
-                               if (name_text) {
+                               if (name_text && !get_item_name().empty()) {
                                        name_text->show();
                                        reset_name_width (pixel_width);
                                }
@@ -887,34 +924,87 @@ TimeAxisViewItem::reset_name_width (double pixel_width)
        if (name_text == 0) {
                return;
        }
-                       
-       int width;
-       
-       ustring ustr = fit_to_pixels (item_name, (int) floor (pixel_width - NAME_X_OFFSET), NAME_FONT, width);
 
-       if (ustr.empty()) {
-               
-               name_text->hide ();
-               
-       } else {
-               
-               /* don't use name for event handling if it leaves no room
-                  for trimming to work.
-               */
+       int limit = (int) floor (pixel_width - NAME_X_OFFSET);
+       bool shrinking = (last_name_text_width > pixel_width);
+       int actual_width;
+       ustring ustr;
+       ustring::size_type n;
+
+       if ((last_name_text_width &&                                       // we did this once
+            shrinking &&                                                  // we're getting smaller
+            (name_text_width <= limit) &&                                 // fits the new size
+            (name_text_width <= last_name_text_width - NAME_X_OFFSET))) { // fit into the old size too
+               last_name_text_width = pixel_width;
+               return;
+       }
+
+       /* now check the cache of existing truncations */
+
+       Gtk::Label foo;
+       Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout ("");
+
+       for (n = item_name.length(); n > 0; --n) {
                
-               if (pixel_width - width < (NAME_X_OFFSET * 2.0)) {
-                       if (name_connected) {
-                               name_connected = false;
+               map<ustring::size_type,int>::iterator i;
+
+               if ((i = name_text_size_cache.find (n)) != name_text_size_cache.end()) {
+
+                       /* we know the length of this substring already */
+                       
+                       if ((actual_width = (*i).second) < limit) {
+
+                               /* it fits, use it */
+                               
+                               ustr = item_name.substr (0, n);
+                               break;
                        }
+                                               
                } else {
-                       if (!name_connected) {
-                               name_connected = true;
+                       
+                       /* we don't know the length of this substring already, so compute
+                          it and put it into the cache.
+                        */
+
+                       layout->set_text (item_name.substr (0, n));
+                       
+                       int width, height;
+                       Gtkmm2ext::get_ink_pixel_size (layout, width, height);
+                       
+                       name_text_size_cache[n] = width;
+
+                       if ((actual_width = width) < limit) {
+                               ustr = item_name.substr (0, n);
+                               break;
                        }
                }
-               
-               name_text->property_text() = ustr;
-               name_text->show();
        }
+
+       if (n == 0) {
+               name_text->property_text() = "";
+               last_name_text_width = pixel_width;
+               return;
+       } 
+
+       /* don't use name for event handling if it leaves no room
+          for trimming to work.
+       */
+       
+       if (pixel_width - actual_width < (NAME_X_OFFSET * 2.0)) {
+               if (name_connected) {
+                       name_connected = false;
+               }
+       } else {
+               if (!name_connected) {
+                       name_connected = true;
+               }
+       }
+       
+       name_text->property_text() = ustr;
+       name_text_width = actual_width;
+       name_text->show();
+       last_name_text_width = pixel_width;
+
 }
 
 
@@ -957,3 +1047,4 @@ TimeAxisViewItem::idle_remove_this_item(TimeAxisViewItem* item, void* src)
        item = 0;
        return false;
 }
+