- Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
-
- int width, height;
- double pos = position_control->get_value (); /* 0..1 */
- double swidth = width_control->get_value (); /* -1..+1 */
- double fswidth = fabs (swidth);
- uint32_t o, f, t, b, r;
- State state;
- const double corner_radius = 5.0;
-
- width = get_width();
- height = get_height ();
-
- if (swidth == 0.0) {
- state = Mono;
- } else if (swidth < 0.0) {
- state = Inverted;
- } else {
- state = Normal;
- }
-
- o = colors[state].outline;
- f = colors[state].fill;
- t = colors[state].text;
- b = colors[state].background;
- r = colors[state].rule;
-
- /* background */
-
- context->set_source_rgba (UINT_RGBA_R_FLT(b), UINT_RGBA_G_FLT(b), UINT_RGBA_B_FLT(b), UINT_RGBA_A_FLT(b));
- rounded_rectangle (context, 0, 0, width, height, corner_radius);
- context->fill ();
-
- /* the usable width is reduced from the real width, because we need space for
- the two halves of LR boxes that will extend past the actual left/right
- positions (indicated by the vertical line segment above them).
- */
-
- double usable_width = width - lr_box_size;
-
- /* compute the centers of the L/R boxes based on the current stereo width */
-
- if (fmod (usable_width,2.0) == 0) {
- /* even width, but we need odd, so that there is an exact center.
- So, offset cairo by 1, and reduce effective width by 1
- */
- usable_width -= 1.0;
- context->translate (1.0, 0.0);
- }
-
- double center = (lr_box_size/2.0) + (usable_width * pos);
- const double pan_spread = (fswidth * usable_width)/2.0;
- const double half_lr_box = lr_box_size/2.0;
- int left;
- int right;
-
- left = center - pan_spread; // center of left box
- right = center + pan_spread; // center of right box
-
- /* center line */
-
- context->set_line_width (1.0);
- context->move_to ((usable_width + lr_box_size)/2.0, 0);
- context->rel_line_to (0, height);
- context->set_source_rgba (UINT_RGBA_R_FLT(r), UINT_RGBA_G_FLT(r), UINT_RGBA_B_FLT(r), UINT_RGBA_A_FLT(r));
- context->stroke ();
-
- /* compute & draw the line through the box */
-
- context->set_line_width (2);
- context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
- context->move_to (left, top_step+(pos_box_size/2.0)+step_down);
- context->line_to (left, top_step+(pos_box_size/2.0));
- context->line_to (right, top_step+(pos_box_size/2.0));
- context->line_to (right, top_step+(pos_box_size/2.0) + step_down);
- context->stroke ();
-
- /* left box */
-
- rounded_rectangle (context, left - half_lr_box,
- half_lr_box+step_down,
- lr_box_size, lr_box_size, corner_radius);
- context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
- context->stroke_preserve ();
- context->set_source_rgba (UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
- context->fill ();
-
- /* add text */
-
- context->move_to (left - half_lr_box + 3,
- (lr_box_size/2) + step_down + 13);
- context->select_font_face ("sans-serif", Cairo::FONT_SLANT_NORMAL, Cairo::FONT_WEIGHT_BOLD);
-
- if (state != Mono) {
- context->set_source_rgba (UINT_RGBA_R_FLT(t), UINT_RGBA_G_FLT(t), UINT_RGBA_B_FLT(t), UINT_RGBA_A_FLT(t));
- if (swidth < 0.0) {
- context->show_text (_("R"));
- } else {
- context->show_text (_("L"));
- }
- }
-
- /* right box */
-
- rounded_rectangle (context, right - half_lr_box,
- half_lr_box+step_down,
- lr_box_size, lr_box_size, corner_radius);
- context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
- context->stroke_preserve ();
- context->set_source_rgba (UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
- context->fill ();
-
- /* add text */
-
- context->move_to (right - half_lr_box + 3, (lr_box_size/2)+step_down + 13);
- context->set_source_rgba (UINT_RGBA_R_FLT(t), UINT_RGBA_G_FLT(t), UINT_RGBA_B_FLT(t), UINT_RGBA_A_FLT(t));
-
- if (state == Mono) {
- context->show_text (_("M"));
- } else {
- if (swidth < 0.0) {
- context->show_text (_("L"));
- } else {
- context->show_text (_("R"));
- }
- }
-
- /* draw the central box */
-
- context->set_line_width (2.0);
+ Cairo::RefPtr<Cairo::Context> context = get_window()->create_cairo_context();
+ Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(get_pango_context());
+ layout->set_attributes (panner_font_attributes);
+
+ int tw, th;
+ int width, height;
+ const double pos = position_control->get_value (); /* 0..1 */
+ const double swidth = width_control->get_value (); /* -1..+1 */
+ const double fswidth = fabs (swidth);
+ uint32_t o, f, t, b, r;
+ State state;
+
+ width = get_width();
+ height = get_height ();
+
+ const int step_down = rint(height / 3.5);
+ const double corner_radius = 5.0 * UIConfiguration::instance().get_ui_scale();
+ const int lr_box_size = height - 2 * step_down;
+ const int pos_box_size = (int)(rint(step_down * .8)) | 1;
+ const int top_step = step_down - pos_box_size;
+
+ if (swidth == 0.0) {
+ state = Mono;
+ } else if (swidth < 0.0) {
+ state = Inverted;
+ } else {
+ state = Normal;
+ }
+
+ o = colors[state].outline;
+ f = colors[state].fill;
+ t = colors[state].text;
+ b = colors[state].background;
+ r = colors[state].rule;
+
+ if (_panner_shell->bypassed()) {
+ b = 0x20202040;
+ f = 0x404040ff;
+ o = 0x606060ff;
+ t = 0x606060ff;
+ r = 0x606060ff;
+ }
+
+ if (_send_mode) {
+ b = UIConfiguration::instance().color ("send bg");
+ // b = rgba_from_style("SendStripBase",
+ // UINT_RGBA_R(b), UINT_RGBA_G(b), UINT_RGBA_B(b), 255,
+ // "fg");
+ }
+ /* background */
+
+ context->set_source_rgba (UINT_RGBA_R_FLT(b), UINT_RGBA_G_FLT(b), UINT_RGBA_B_FLT(b), UINT_RGBA_A_FLT(b));
+ cairo_rectangle (context->cobj(), 0, 0, width, height);
+ context->fill_preserve ();
+ context->clip();
+
+ /* the usable width is reduced from the real width, because we need space for
+ the two halves of LR boxes that will extend past the actual left/right
+ positions (indicated by the vertical line segment above them).
+ */
+
+ double usable_width = width - lr_box_size;
+
+ /* compute the centers of the L/R boxes based on the current stereo width */
+
+ if (fmod (usable_width,2.0) == 0) {
+ /* even width, but we need odd, so that there is an exact center.
+ So, offset cairo by 1, and reduce effective width by 1
+ */
+ usable_width -= 1.0;
+ context->translate (1.0, 0.0);
+ }
+
+ const double half_lr_box = lr_box_size/2.0;
+ const double center = rint(half_lr_box + (usable_width * pos));
+ const double pan_spread = rint((fswidth * (usable_width-1.0))/2.0);
+ const double left = center - pan_spread;
+ const double right = center + pan_spread;
+
+ /* center line */
+ context->set_line_width (1.0);
+ context->move_to ((usable_width + lr_box_size)/2.0, 0);
+ context->rel_line_to (0, height);
+ context->set_source_rgba (UINT_RGBA_R_FLT(r), UINT_RGBA_G_FLT(r), UINT_RGBA_B_FLT(r), UINT_RGBA_A_FLT(r));
+ context->stroke ();
+
+ /* compute & draw the line through the box */
+ context->set_line_width (2);
+ context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
+ context->move_to (left, top_step + (pos_box_size/2.0) + step_down + 1.0);
+ context->line_to (left, top_step + (pos_box_size/2.0));
+ context->line_to (right, top_step + (pos_box_size/2.0));
+ context->line_to (right, top_step + (pos_box_size/2.0) + step_down + 1.0);
+ context->stroke ();
+
+ context->set_line_width (1.0);
+
+ /* left box */
+ if (state != Mono) {
+ rounded_rectangle (context, left - half_lr_box,
+ half_lr_box+step_down,
+ lr_box_size, lr_box_size, corner_radius);
+ context->set_source_rgba (UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
+ context->fill_preserve();
+ context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
+ context->stroke();
+
+ /* add text */
+ context->set_source_rgba (UINT_RGBA_R_FLT(t), UINT_RGBA_G_FLT(t), UINT_RGBA_B_FLT(t), UINT_RGBA_A_FLT(t));
+ if (swidth < 0.0) {
+ layout->set_text (S_("Panner|R"));
+ } else {
+ layout->set_text (S_("Panner|L"));
+ }
+ layout->get_pixel_size(tw, th);
+ context->move_to (rint(left - tw/2), rint(lr_box_size + step_down - th/2));
+ pango_cairo_show_layout (context->cobj(), layout->gobj());
+ }
+
+ /* right box */
+ rounded_rectangle (context, right - half_lr_box,
+ half_lr_box+step_down,
+ lr_box_size, lr_box_size, corner_radius);
+ context->set_source_rgba (UINT_RGBA_R_FLT(f), UINT_RGBA_G_FLT(f), UINT_RGBA_B_FLT(f), UINT_RGBA_A_FLT(f));
+ context->fill_preserve();
+ context->set_source_rgba (UINT_RGBA_R_FLT(o), UINT_RGBA_G_FLT(o), UINT_RGBA_B_FLT(o), UINT_RGBA_A_FLT(o));
+ context->stroke();
+
+ /* add text */
+ context->set_source_rgba (UINT_RGBA_R_FLT(t), UINT_RGBA_G_FLT(t), UINT_RGBA_B_FLT(t), UINT_RGBA_A_FLT(t));
+
+ if (state == Mono) {
+ layout->set_text (S_("Panner|M"));
+ } else {
+ if (swidth < 0.0) {
+ layout->set_text (S_("Panner|L"));
+ } else {
+ layout->set_text (S_("Panner|R"));
+ }
+ }
+ layout->get_pixel_size(tw, th);
+ context->move_to (rint(right - tw/2), rint(lr_box_size + step_down - th/2));
+ pango_cairo_show_layout (context->cobj(), layout->gobj());
+
+ /* draw the central box */
+ context->set_line_width (2.0);