double TimeAxisViewItem::NAME_HIGHLIGHT_SIZE;
double TimeAxisViewItem::NAME_HIGHLIGHT_THRESH;
+inline guint8
+convert_color_channel (guint8 src,
+ guint8 alpha)
+{
+ return alpha ? ((guint (src) << 8) - src) / alpha : 0;
+}
+
+void
+convert_bgra_to_rgba (guint8 const* src,
+ guint8* dst,
+ int width,
+ int height)
+{
+ guint8 const* src_pixel = src;
+ guint8* dst_pixel = dst;
+
+ for (int y = 0; y < height; y++)
+ for (int x = 0; x < width; x++)
+ {
+ dst_pixel[0] = convert_color_channel (src_pixel[2],
+ src_pixel[3]);
+ dst_pixel[1] = convert_color_channel (src_pixel[1],
+ src_pixel[3]);
+ dst_pixel[2] = convert_color_channel (src_pixel[0],
+ src_pixel[3]);
+ dst_pixel[3] = src_pixel[3];
+
+ dst_pixel += 4;
+ src_pixel += 4;
+ }
+}
//---------------------------------------------------------------------------------------//
// Constructor / Desctructor
/* first constructed item sets up font info */
NAME_FONT = get_font_for_style (N_("TimeAxisViewItemName"));
-
+
Gtk::Window win;
Gtk::Label foo;
win.add (foo);
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 ;
}
if (visibility & ShowNameText) {
- name_text = new ArdourCanvas::Text (*group);
- name_text->property_x() = (double) TimeAxisViewItem::NAME_X_OFFSET;
- /* 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.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);
-
- } else {
- name_text = 0;
+ name_pixbuf = new ArdourCanvas::Pixbuf(*group);
+ name_pixbuf->property_x() = NAME_X_OFFSET;
+ name_pixbuf->property_y() = trackview.current_height() - 1.0 - NAME_Y_OFFSET;
+
}
-
set_color (base_color) ;
set_duration (item_duration, this) ;
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 */
}
}
void
TimeAxisViewItem::set_name_text(const ustring& new_name)
{
- if (name_text) {
- name_text->property_text() = new_name;
- name_text_width = pixel_width (new_name, *NAME_FONT);
- name_text_size_cache.clear ();
+ uint32_t pb_width, it_width;
+ double font_size;
+
+ font_size = NAME_FONT->get_size() / Pango::SCALE;
+ it_width = trackview.editor.frame_to_pixel(item_duration);
+ pb_width = new_name.length() * font_size;
+
+ if (pb_width > it_width - NAME_X_OFFSET) {
+ pb_width = it_width - NAME_X_OFFSET;
+ }
+
+ if (pb_width <= 0 || it_width < NAME_X_OFFSET) {
+ name_pixbuf->hide();
+ return;
+ } else {
+ name_pixbuf->show();
}
+
+ Glib::RefPtr<Gdk::Pixbuf> buf = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true, 8, pb_width, NAME_HIGHLIGHT_SIZE);
+
+ cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, pb_width, NAME_HIGHLIGHT_SIZE );
+ cairo_t *cr = cairo_create (surface);
+ cairo_text_extents_t te;
+ cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0);
+ cairo_select_font_face (cr, NAME_FONT->get_family().c_str(),
+ CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_set_font_size (cr, font_size);
+ cairo_text_extents (cr, new_name.c_str(), &te);
+
+ cairo_move_to (cr, 0.5,
+ 0.5 - te.height / 2 - te.y_bearing + NAME_HIGHLIGHT_SIZE / 2);
+ cairo_show_text (cr, new_name.c_str());
+
+ unsigned char* src = cairo_image_surface_get_data (surface);
+ convert_bgra_to_rgba(src, buf->get_pixels(), pb_width, NAME_HIGHLIGHT_SIZE);
+
+ cairo_destroy(cr);
+ name_pixbuf->property_pixbuf() = buf;
}
/**
if (name_highlight) {
if (height < NAME_HIGHLIGHT_THRESH) {
name_highlight->hide();
- if (name_text) {
- name_text->hide();
- }
+ name_pixbuf->hide();
+
} else {
name_highlight->show();
- if (name_text) {
- name_text->show();
- }
+ name_pixbuf->show();
+
}
if (height > NAME_HIGHLIGHT_SIZE) {
}
}
- if (name_text) {
- name_text->property_y() = height+1 - NAME_Y_OFFSET;
- if (height < NAME_HIGHLIGHT_THRESH) {
- name_text->property_fill_color_rgba() = fill_color;
- } else {
- name_text->property_fill_color_rgba() = label_color;
- }
- }
+ name_pixbuf->property_y() = height+1 - NAME_Y_OFFSET;
if (frame) {
frame->property_y2() = height+1;
/**
*
*/
-ArdourCanvas::Text*
-TimeAxisViewItem::get_name_text()
+ArdourCanvas::Pixbuf*
+TimeAxisViewItem::get_name_pixbuf()
{
- return (name_text) ;
+ return (name_pixbuf) ;
}
/**
TimeAxisViewItem::set_colors()
{
set_frame_color() ;
- if (name_text) {
- double height = NAME_HIGHLIGHT_THRESH;
-
- if (frame) {
- height = frame->property_y2();
- }
-
- if (height < NAME_HIGHLIGHT_THRESH) {
- name_text->property_fill_color_rgba() = fill_color;
- }
- else {
- name_text->property_fill_color_rgba() = label_color;
- }
- }
if (name_highlight) {
name_highlight->property_fill_color_rgba() = fill_color;
if (name_highlight) {
name_highlight->hide();
- if (name_text) {
- name_text->hide();
- }
+ name_pixbuf->hide();
}
if (frame) {
if (height < NAME_HIGHLIGHT_THRESH) {
name_highlight->hide();
- if (name_text) {
- name_text->hide();
- }
+ name_pixbuf->hide();
} else {
name_highlight->show();
- if (name_text && !get_item_name().empty()) {
- name_text->show();
+ if (!get_item_name().empty()) {
reset_name_width (pixel_width);
}
}
void
TimeAxisViewItem::reset_name_width (double pixel_width)
{
- if (name_text == 0) {
- return;
- }
-
- 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) {
-
- 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 {
-
- /* 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;
- }
- }
- }
-
- 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;
-
+ set_name_text (item_name);
}
projects / ardour.git / commitdiff