trunk/src/dimregionchooser.cpp

/*
 * Copyright (C) 2006, 2007 Andreas Persson
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with program; see the file COPYING. If not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#include "dimregionchooser.h"
#include <gdkmm/cursor.h>

DimRegionChooser::DimRegionChooser()
{
    // get_window() would return 0 because the Gdk::Window has not yet been realized
    // So we can only allocate the colors here - the rest will happen in on_realize().
    Glib::RefPtr<Gdk::Colormap> colormap = get_default_colormap();

    black = Gdk::Color("black");
    white = Gdk::Color("white");
    red = Gdk::Color("#8070ff");
    blue = Gdk::Color("blue");
    green = Gdk::Color("green");

    colormap->alloc_color(black);
    colormap->alloc_color(white);
    colormap->alloc_color(red);
    colormap->alloc_color(blue);
    colormap->alloc_color(green);
    instrument = 0;
    region = 0;
    dimregno = -1;
    focus_line = 0;
    resize.active = false;
    cursor_is_resize = false;
    h = 20;
    w = 800;
    set_flags(Gtk::CAN_FOCUS);
    add_events(Gdk::BUTTON_PRESS_MASK | Gdk::POINTER_MOTION_MASK |
               Gdk::POINTER_MOTION_HINT_MASK);

    for (int i = 0 ; i < 256 ; i++) {
        dimvalue_from[i] = 0;
        dimvalue_to[i] = 1;
    }
}

DimRegionChooser::~DimRegionChooser()
{
}

void DimRegionChooser::on_realize()
{
    // We need to call the base on_realize()
    Gtk::DrawingArea::on_realize();

    // Now we can allocate any additional resources we need
    Glib::RefPtr<Gdk::Window> window = get_window();
    gc = Gdk::GC::create(window);
}

bool DimRegionChooser::on_expose_event(GdkEventExpose* event)
{
    if (!region) return true;

    // This is where we draw on the window
    Glib::RefPtr<Gdk::Window> window = get_window();
    Glib::RefPtr<Pango::Context> context = get_pango_context();

    Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(context);

    window->clear();
    int y = 0;
    double maxwidth = 0;
    for (int i = 0 ; i < region->Dimensions ; i++) {

        int nbZones = region->pDimensionDefinitions[i].zones;
        if (nbZones) {
            char* dstr;
            char dstrbuf[10];
            switch (region->pDimensionDefinitions[i].dimension) {
            case gig::dimension_none: dstr="none"; break;
            case gig::dimension_samplechannel: dstr="samplechannel"; break;
            case gig::dimension_layer: dstr="layer"; break;
            case gig::dimension_velocity: dstr="velocity"; break;
            case gig::dimension_channelaftertouch: dstr="channelaftertouch"; break;
            case gig::dimension_releasetrigger: dstr="releasetrigger"; break;
            case gig::dimension_keyboard: dstr="keyboard"; break;
            case gig::dimension_roundrobin: dstr="roundrobin"; break;
            case gig::dimension_random: dstr="random"; break;
            case gig::dimension_smartmidi: dstr="smartmidi"; break;
            case gig::dimension_roundrobinkeyboard: dstr="roundrobinkeyboard"; break;
            case gig::dimension_modwheel: dstr="modwheel"; break;
            case gig::dimension_breath: dstr="breath"; break;
            case gig::dimension_foot: dstr="foot"; break;
            case gig::dimension_portamentotime: dstr="portamentotime"; break;
            case gig::dimension_effect1: dstr="effect1"; break;
            case gig::dimension_effect2: dstr="effect2"; break;
            case gig::dimension_genpurpose1: dstr="genpurpose1"; break;
            case gig::dimension_genpurpose2: dstr="genpurpose2"; break;
            case gig::dimension_genpurpose3: dstr="genpurpose3"; break;
            case gig::dimension_genpurpose4: dstr="genpurpose4"; break;
            case gig::dimension_sustainpedal: dstr="sustainpedal"; break;
            case gig::dimension_portamento: dstr="portamento"; break;
            case gig::dimension_sostenutopedal: dstr="sostenutopedal"; break;
            case gig::dimension_softpedal: dstr="softpedal"; break;
            case gig::dimension_genpurpose5: dstr="genpurpose5"; break;
            case gig::dimension_genpurpose6: dstr="genpurpose6"; break;
            case gig::dimension_genpurpose7: dstr="genpurpose7"; break;
            case gig::dimension_genpurpose8: dstr="genpurpose8"; break;
            case gig::dimension_effect1depth: dstr="effect1depth"; break;
            case gig::dimension_effect2depth: dstr="effect2depth"; break;
            case gig::dimension_effect3depth: dstr="effect3depth"; break;
            case gig::dimension_effect4depth: dstr="effect4depth"; break;
            case gig::dimension_effect5depth: dstr="effect5depth"; break;
            default:
                sprintf(dstrbuf, "%d",
                        region->pDimensionDefinitions[i].dimension);
                dstr = dstrbuf;
                break;
            }
            layout->set_text(dstr);

            Pango::Rectangle rectangle = layout->get_logical_extents();
            double text_w = double(rectangle.get_width()) / Pango::SCALE;
            if (text_w > maxwidth) maxwidth = text_w;
            double text_h = double(rectangle.get_height()) / Pango::SCALE;
            Glib::RefPtr<const Gdk::GC> fg = get_style()->get_fg_gc(get_state());
            window->draw_layout(fg, 4, int(y + (h - text_h) / 2 + 0.5), layout);

        }
        y += h;
    }
    y = 0;
    int bitpos = 0;
    label_width = int(maxwidth + 10);
    for (int i = 0 ; i < region->Dimensions ; i++) {
        int nbZones = region->pDimensionDefinitions[i].zones;
        if (nbZones) {

            if (has_focus() && focus_line == i) {
                Gdk::Rectangle farea(0, y, 150, 20);
                get_style()->paint_focus(window, get_state(), farea, *this, "",
                                         0, y, label_width, 20);
            }

            Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
            window->draw_line(black, label_width, y, w - 1, y);
            window->draw_line(black, w - 1, y + h - 1, label_width, y + h - 1);
            window->draw_rectangle(get_style()->get_white_gc(), true,
                                   label_width + 1, y + 1, (w - label_width - 2), h - 2);

            int c = 0;
            if (dimregno >= 0) {
                int mask = ~(((1 << region->pDimensionDefinitions[i].bits) - 1) << bitpos);
                c = dimregno & mask; // mask away this dimension
            }
            bool customsplits =
                ((region->pDimensionDefinitions[i].split_type == gig::split_type_normal &&
                 region->pDimensionRegions[c]->DimensionUpperLimits[i]) ||
                (region->pDimensionDefinitions[i].dimension == gig::dimension_velocity &&
                 region->pDimensionRegions[c]->VelocityUpperLimit));

            if (customsplits) {
                window->draw_line(black, label_width, y + 1, label_width, y + h - 2);
                for (int j = 0 ; j < nbZones ; j++) {
                    gig::DimensionRegion *d = region->pDimensionRegions[c + (j << bitpos)];
                    int upperLimit = d->DimensionUpperLimits[i];
                    if (!upperLimit) upperLimit = d->VelocityUpperLimit;
                    int v = upperLimit + 1;
                    int x = int((w - label_width - 1) * v / 128.0 + 0.5);
                    window->draw_line(black, label_width + x, y + 1, label_width + x, y + h - 2);
                }
            } else {
                for (int j = 0 ; j <= nbZones ; j++) {
                    int x = int((w - label_width - 1) * j / double(nbZones) + 0.5);
                    window->draw_line(black, label_width + x, y + 1, label_width + x, y + h - 2);
                }
            }

            if (dimregno >= 0) {
                gc->set_foreground(red);
                int dr = (dimregno >> bitpos) & ((1 << region->pDimensionDefinitions[i].bits) - 1);
                if (customsplits) {
                    int x1 = 0;
                    for (int j = 0 ; j < nbZones ; j++) {
                        gig::DimensionRegion *d = region->pDimensionRegions[c + (j << bitpos)];
                        int upperLimit = d->DimensionUpperLimits[i];
                        if (!upperLimit) upperLimit = d->VelocityUpperLimit;
                        int v = upperLimit + 1;
                        int x2 = int((w - label_width - 1) * v / 128.0 + 0.5);
                        if (j == dr && x1 < x2) {
                            window->draw_rectangle(gc, true, label_width + x1 + 1, y + 1,
                                                   (x2 - x1) - 1, h - 2);
                            break;
                        }
                        x1 = x2;
                    }
                } else {
                    if (dr < nbZones) {
                        int x1 = int((w - label_width - 1) * dr / double(nbZones) + 0.5);
                        int x2 = int((w - label_width - 1) * (dr + 1) / double(nbZones) + 0.5);
                        window->draw_rectangle(gc, true, label_width + x1 + 1, y + 1,
                                               (x2 - x1) - 1, h - 2);
                    }
                }
            }

            y += h;
        }
        bitpos += region->pDimensionDefinitions[i].bits;
    }

    return true;
}

void DimRegionChooser::on_size_request(GtkRequisition* requisition)
{
    printf("DimRegionChooser::on_size_request\n");
    *requisition = GtkRequisition();
    requisition->height = region ? nbDimensions * 20 : 0;
    requisition->width = 800;
}

void DimRegionChooser::set_instrument(gig::Instrument* instrument)
{
    this->instrument = instrument;
    this->region = 0;
    this->dimregno = -1;
    queue_draw();
}

void DimRegionChooser::set_region(gig::Region* region)
{
    this->region = region;
    dimregno = 0;
    int bitcount = 0;
    nbDimensions = 0;
    for (int dim = 0 ; dim < region->Dimensions ; dim++) {
        if (region->pDimensionDefinitions[dim].bits == 0) continue;
        nbDimensions++;

        int from = dimvalue_from[region->pDimensionDefinitions[dim].dimension];
        int to = dimvalue_to[region->pDimensionDefinitions[dim].dimension];
        int z;
        switch (region->pDimensionDefinitions[dim].split_type) {
        case gig::split_type_normal:
            z = int((to + from) / 2.0 / region->pDimensionDefinitions[dim].zone_size);
            break;
        case gig::split_type_bit:
            z = std::min(from, region->pDimensionDefinitions[dim].zones - 1);
            break;
        }
        int mask =
            ~(((1 << region->pDimensionDefinitions[dim].bits) - 1) <<
              bitcount);
        dimregno &= mask;
        dimregno |= (z << bitcount);
        bitcount += region->pDimensionDefinitions[dim].bits;
    }
    dimreg = region->pDimensionRegions[dimregno];
    sel_changed_signal.emit();
    queue_resize();
}

/*
  void DimRegionChooser::set_dimregno(int x) {
  this->dimregno = x;
  queue_draw();
  }
*/

bool DimRegionChooser::on_button_release_event(GdkEventButton* event)
{
    if (resize.active) {
        get_window()->pointer_ungrab(event->time);
        resize.active = false;

        if (region->pDimensionDefinitions[resize.dimension].dimension == gig::dimension_velocity) {

            int bitpos = 0;
            for (int j = 0 ; j < resize.dimension ; j++) {
                bitpos += region->pDimensionDefinitions[j].bits;
            }
            int mask =
                     ~(((1 << region->pDimensionDefinitions[resize.dimension].bits) - 1) << bitpos);
            int c = dimregno & mask; // mask away this dimension

            gig::DimensionRegion *d = region->pDimensionRegions[c + resize.offset];
            if (d->DimensionUpperLimits[resize.dimension]) {
                d->DimensionUpperLimits[resize.dimension] = resize.pos - 1;
            } else {
                d->VelocityUpperLimit = resize.pos - 1;
            }

        } else {
            for (int i = 0 ; i < region->DimensionRegions ; ) {

                gig::DimensionRegion *d = region->pDimensionRegions[i + resize.offset];
                d->DimensionUpperLimits[resize.dimension] = resize.pos - 1;

                int bitpos = 0;
                int j;
                for (j = 0 ; j < region->Dimensions ; j++) {
                    if (j != resize.dimension) {
                        int maxzones = 1 << region->pDimensionDefinitions[j].bits;
                        int dimj = (i >> bitpos) & (maxzones - 1);
                        if (dimj + 1 < region->pDimensionDefinitions[j].zones) break;
                    }
                    bitpos += region->pDimensionDefinitions[j].bits;
                }
                if (j == region->Dimensions) break;
                i = (i & ~((1 << bitpos) - 1)) + (1 << bitpos);
            }
        }

        if (!is_in_resize_zone(event->x, event->y) && cursor_is_resize) {
            get_window()->set_cursor();
            cursor_is_resize = false;
        }
    }
    return true;
}

bool DimRegionChooser::on_button_press_event(GdkEventButton* event)
{
    if (region && event->y < nbDimensions * h &&
        event->x >= label_width && event->x < w) {

        if (is_in_resize_zone(event->x, event->y)) {
            Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
            get_window()->pointer_grab(false,
                                       Gdk::BUTTON_RELEASE_MASK |
                                       Gdk::POINTER_MOTION_MASK |
                                       Gdk::POINTER_MOTION_HINT_MASK,
                                       double_arrow, event->time);
            resize.active = true;
        } else {
            int ydim = int(event->y / h);
            int dim;
            for (dim = 0 ; dim < region->Dimensions ; dim++) {
                if (region->pDimensionDefinitions[dim].bits == 0) continue;
                if (ydim == 0) break;
                ydim--;
            }
            int nbZones = region->pDimensionDefinitions[dim].zones;

            int z = -1;
            int bitpos = 0;
            for (int i = 0 ; i < dim ; i++) {
                bitpos += region->pDimensionDefinitions[i].bits;
            }

            int i = dim;
            if (dimregno < 0) dimregno = 0;
            int mask = ~(((1 << region->pDimensionDefinitions[i].bits) - 1) << bitpos);
            int c = dimregno & mask; // mask away this dimension

            bool customsplits =
                ((region->pDimensionDefinitions[i].split_type == gig::split_type_normal &&
                  region->pDimensionRegions[c]->DimensionUpperLimits[i]) ||
                 (region->pDimensionDefinitions[i].dimension == gig::dimension_velocity &&
                  region->pDimensionRegions[c]->VelocityUpperLimit));
            if (customsplits) {
                int val = int((event->x - label_width) * 128 / (w - label_width - 1));

                if (region->pDimensionRegions[c]->DimensionUpperLimits[i]) {
                    for (z = 0 ; z < nbZones ; z++) {
                        gig::DimensionRegion *d = region->pDimensionRegions[c + (z << bitpos)];
                        if (val <= d->DimensionUpperLimits[i]) break;
                    }
                } else {
                    for (z = 0 ; z < nbZones ; z++) {
                        gig::DimensionRegion *d = region->pDimensionRegions[c + (z << bitpos)];
                        if (val <= d->VelocityUpperLimit) break;
                    }
                }
            } else {
                z = int((event->x - label_width) * nbZones / (w - label_width - 1));
            }

            printf("dim=%d z=%d dimensionsource=%d split_type=%d zones=%d zone_size=%f\n", dim, z,
                   region->pDimensionDefinitions[dim].dimension,
                   region->pDimensionDefinitions[dim].split_type,
                   region->pDimensionDefinitions[dim].zones,
                   region->pDimensionDefinitions[dim].zone_size);
#if 0
            switch (region->pDimensionDefinitions[dim].split_type) {
            case gig::split_type_normal:
                dimvalue_from[region->pDimensionDefinitions[dim].dimension] =
                    int(z * region->pDimensionDefinitions[dim].zone_size);
                dimvalue_to[region->pDimensionDefinitions[dim].dimension] =
                    int((z + 1) * region->pDimensionDefinitions[dim].zone_size) - 1;
                break;
            case gig::split_type_bit:
                dimvalue_from[region->pDimensionDefinitions[dim].dimension] = z;
                dimvalue_to[region->pDimensionDefinitions[dim].dimension] = z + 1;
                break;
            }
#endif

            dimregno = c | (z << bitpos);

            focus_line = dim;
            if (has_focus()) queue_draw();
            else grab_focus();
            dimreg = region->pDimensionRegions[dimregno];
            sel_changed_signal.emit();
        }
    }
    return true;
}

bool DimRegionChooser::on_motion_notify_event(GdkEventMotion* event)
{
    Glib::RefPtr<Gdk::Window> window = get_window();
    int x, y;
    Gdk::ModifierType state = Gdk::ModifierType(0);
    window->get_pointer(x, y, state);

    if (resize.active) {
        int k = int((x - label_width) * 128.0 / (w - label_width - 1) + 0.5);

        if (k < resize.min) k = resize.min;
        else if (k > resize.max) k = resize.max;

        if (k < 2) k = 2; // k is upper limit + 1, upper limit 0 is forbidden

        if (k != resize.pos) {
            Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
            Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();

            int prevx = int((w - label_width - 1) * resize.pos / 128.0 + 0.5) + label_width;
            int x = int((w - label_width - 1) * k / 128.0 + 0.5) + label_width;
            int y = resize.dimension * h;

            if (resize.selected == resize.none) {
                if (resize.pos != resize.min && resize.pos != resize.max) {
                    window->draw_line(white, prevx, y + 1, prevx, y + h - 2);
                }
            } else {
                gc->set_foreground(red);

                Glib::RefPtr<const Gdk::GC> left;
                Glib::RefPtr<const Gdk::GC> right;
                if (resize.selected == resize.left) {
                    left = gc;
                    right = white;
                } else {
                    left = white;
                    right = gc;
                }

                if (k > resize.pos) {
                    int xx = resize.pos == resize.min ? 1 : 0;
                    window->draw_rectangle(left, true,
                                           prevx + xx, y + 1, x - prevx - xx, h - 2);
                } else {
                    int xx = resize.pos == resize.max ? 0 : 1;
                    window->draw_rectangle(right, true,
                                           x, y + 1, prevx - x + xx, h - 2);
                }
            }
            window->draw_line(black, x, y + 1, x, y + h - 2);
            resize.pos = k;
        }
    } else {
        if (is_in_resize_zone(x, y)) {
            if (!cursor_is_resize) {
                Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
                window->set_cursor(double_arrow);
                cursor_is_resize = true;
            }
        } else if (cursor_is_resize) {
            window->set_cursor();
            cursor_is_resize = false;
        }
    }
    return true;
}

bool DimRegionChooser::is_in_resize_zone(double x, double y)
{
    if (region && y < nbDimensions * h && x >= label_width && x < w) {
        int ydim = int(y / h);
        int dim;
        int bitpos = 0;
        for (dim = 0 ; dim < region->Dimensions ; dim++) {
            if (region->pDimensionDefinitions[dim].bits == 0) continue;
            if (ydim == 0) break;
            ydim--;
            bitpos += region->pDimensionDefinitions[dim].bits;
        }
        int nbZones = region->pDimensionDefinitions[dim].zones;

        int c = 0;
        if (dimregno >= 0) {
            int mask = ~(((1 << region->pDimensionDefinitions[dim].bits) - 1) << bitpos);
            c = dimregno & mask; // mask away this dimension
        }
        bool customsplits =
            ((region->pDimensionDefinitions[dim].split_type == gig::split_type_normal &&
              region->pDimensionRegions[c]->DimensionUpperLimits[dim]) ||
             (region->pDimensionDefinitions[dim].dimension == gig::dimension_velocity &&
              region->pDimensionRegions[c]->VelocityUpperLimit));

        if (customsplits) {
            int prev_limit = 0;
            for (int j = 0 ; j < nbZones - 1 ; j++) {
                gig::DimensionRegion *d = region->pDimensionRegions[c + (j << bitpos)];
                int upperLimit = d->DimensionUpperLimits[dim];
                if (!upperLimit) upperLimit = d->VelocityUpperLimit;
                int limit = upperLimit + 1;
                int limitx = int((w - label_width - 1) * limit / 128.0 + 0.5) + label_width;

                if (x <= limitx - 2) break;
                if (x <= limitx + 2) {
                    resize.dimension = dim;
                    resize.offset = j << bitpos;
                    resize.pos = limit;
                    resize.min = prev_limit;

                    int dr = (dimregno >> bitpos) &
                        ((1 << region->pDimensionDefinitions[dim].bits) - 1);
                    resize.selected = dr == j ? resize.left :
                        dr == j + 1 ? resize.right : resize.none;

                    j++;
                    gig::DimensionRegion *d = region->pDimensionRegions[c + (j << bitpos)];
                    int upperLimit = d->DimensionUpperLimits[dim];
                    if (!upperLimit) upperLimit = d->VelocityUpperLimit;
                    int limit = upperLimit + 1;
                    resize.max = limit;
                    return true;
                }
                prev_limit = limit;
            }
        }
    }
    return false;
}

sigc::signal<void> DimRegionChooser::signal_sel_changed()
{
    return sel_changed_signal;
}

bool DimRegionChooser::on_focus(Gtk::DirectionType direction)
{
    // TODO: kolla att region finns osv, dvs att det g�r att s�tta
    // fokus.
    if (direction == Gtk::DIR_TAB_FORWARD ||
        direction == Gtk::DIR_DOWN) {
        if (!has_focus()) {
            focus_line = 0;
            grab_focus();
            return true;
        } else {
            if (focus_line + 1 < region->Dimensions) {
                focus_line++;
                queue_draw();
                return true;
            } else {
                return false;
            }
        }
    } else if (direction == Gtk::DIR_TAB_BACKWARD ||
               direction == Gtk::DIR_UP) {
        if (!has_focus()) {
            focus_line = region->Dimensions - 1;
            grab_focus();
            return true;
        } else {
            if (focus_line > 0) {
                focus_line--;
                queue_draw();
                return true;
            } else {
                return false;
            }
        }
    } else if (!has_focus()) {
        // TODO: kolla att focus_line finns!
        grab_focus();
        return true;
    } else {
        // TODO: �ka eller minska v�rde!
    }
}
1	/*
2	* Copyright (C) 2006, 2007 Andreas Persson
3	*
4	* This program is free software; you can redistribute it and/or
5	* modify it under the terms of the GNU General Public License as
6	* published by the Free Software Foundation; either version 2, or (at
7	* your option) any later version.
8	*
9	* This program is distributed in the hope that it will be useful, but
10	* WITHOUT ANY WARRANTY; without even the implied warranty of
11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12	* General Public License for more details.
13	*
14	* You should have received a copy of the GNU General Public License
15	* along with program; see the file COPYING. If not, write to the Free
16	* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
17	* 02110-1301 USA.
18	*/
19
20	#include "dimregionchooser.h"
21	#include <gdkmm/cursor.h>
22
23	DimRegionChooser::DimRegionChooser()
24	{
25	// get_window() would return 0 because the Gdk::Window has not yet been realized
26	// So we can only allocate the colors here - the rest will happen in on_realize().
27	Glib::RefPtr<Gdk::Colormap> colormap = get_default_colormap();
28
29	black = Gdk::Color("black");
30	white = Gdk::Color("white");
31	red = Gdk::Color("#8070ff");
32	blue = Gdk::Color("blue");
33	green = Gdk::Color("green");
34
35	colormap->alloc_color(black);
36	colormap->alloc_color(white);
37	colormap->alloc_color(red);
38	colormap->alloc_color(blue);
39	colormap->alloc_color(green);
40	instrument = 0;
41	region = 0;
42	dimregno = -1;
43	focus_line = 0;
44	resize.active = false;
45	cursor_is_resize = false;
46	h = 20;
47	w = 800;
48	set_flags(Gtk::CAN_FOCUS);
49	add_events(Gdk::BUTTON_PRESS_MASK \| Gdk::POINTER_MOTION_MASK \|
50	Gdk::POINTER_MOTION_HINT_MASK);
51
52	for (int i = 0 ; i < 256 ; i++) {
53	dimvalue_from[i] = 0;
54	dimvalue_to[i] = 1;
55	}
56	}
57
58	DimRegionChooser::~DimRegionChooser()
59	{
60	}
61
62	void DimRegionChooser::on_realize()
63	{
64	// We need to call the base on_realize()
65	Gtk::DrawingArea::on_realize();
66
67	// Now we can allocate any additional resources we need
68	Glib::RefPtr<Gdk::Window> window = get_window();
69	gc = Gdk::GC::create(window);
70	}
71
72	bool DimRegionChooser::on_expose_event(GdkEventExpose* event)
73	{
74	if (!region) return true;
75
76	// This is where we draw on the window
77	Glib::RefPtr<Gdk::Window> window = get_window();
78	Glib::RefPtr<Pango::Context> context = get_pango_context();
79
80	Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(context);
81
82	window->clear();
83	int y = 0;
84	double maxwidth = 0;
85	for (int i = 0 ; i < region->Dimensions ; i++) {
86
87	int nbZones = region->pDimensionDefinitions[i].zones;
88	if (nbZones) {
89	char* dstr;
90	char dstrbuf[10];
91	switch (region->pDimensionDefinitions[i].dimension) {
92	case gig::dimension_none: dstr="none"; break;
93	case gig::dimension_samplechannel: dstr="samplechannel"; break;
94	case gig::dimension_layer: dstr="layer"; break;
95	case gig::dimension_velocity: dstr="velocity"; break;
96	case gig::dimension_channelaftertouch: dstr="channelaftertouch"; break;
97	case gig::dimension_releasetrigger: dstr="releasetrigger"; break;
98	case gig::dimension_keyboard: dstr="keyboard"; break;
99	case gig::dimension_roundrobin: dstr="roundrobin"; break;
100	case gig::dimension_random: dstr="random"; break;
101	case gig::dimension_smartmidi: dstr="smartmidi"; break;
102	case gig::dimension_roundrobinkeyboard: dstr="roundrobinkeyboard"; break;
103	case gig::dimension_modwheel: dstr="modwheel"; break;
104	case gig::dimension_breath: dstr="breath"; break;
105	case gig::dimension_foot: dstr="foot"; break;
106	case gig::dimension_portamentotime: dstr="portamentotime"; break;
107	case gig::dimension_effect1: dstr="effect1"; break;
108	case gig::dimension_effect2: dstr="effect2"; break;
109	case gig::dimension_genpurpose1: dstr="genpurpose1"; break;
110	case gig::dimension_genpurpose2: dstr="genpurpose2"; break;
111	case gig::dimension_genpurpose3: dstr="genpurpose3"; break;
112	case gig::dimension_genpurpose4: dstr="genpurpose4"; break;
113	case gig::dimension_sustainpedal: dstr="sustainpedal"; break;
114	case gig::dimension_portamento: dstr="portamento"; break;
115	case gig::dimension_sostenutopedal: dstr="sostenutopedal"; break;
116	case gig::dimension_softpedal: dstr="softpedal"; break;
117	case gig::dimension_genpurpose5: dstr="genpurpose5"; break;
118	case gig::dimension_genpurpose6: dstr="genpurpose6"; break;
119	case gig::dimension_genpurpose7: dstr="genpurpose7"; break;
120	case gig::dimension_genpurpose8: dstr="genpurpose8"; break;
121	case gig::dimension_effect1depth: dstr="effect1depth"; break;
122	case gig::dimension_effect2depth: dstr="effect2depth"; break;
123	case gig::dimension_effect3depth: dstr="effect3depth"; break;
124	case gig::dimension_effect4depth: dstr="effect4depth"; break;
125	case gig::dimension_effect5depth: dstr="effect5depth"; break;
126	default:
127	sprintf(dstrbuf, "%d",
128	region->pDimensionDefinitions[i].dimension);
129	dstr = dstrbuf;
130	break;
131	}
132	layout->set_text(dstr);
133
134	Pango::Rectangle rectangle = layout->get_logical_extents();
135	double text_w = double(rectangle.get_width()) / Pango::SCALE;
136	if (text_w > maxwidth) maxwidth = text_w;
137	double text_h = double(rectangle.get_height()) / Pango::SCALE;
138	Glib::RefPtr<const Gdk::GC> fg = get_style()->get_fg_gc(get_state());
139	window->draw_layout(fg, 4, int(y + (h - text_h) / 2 + 0.5), layout);
140
141	}
142	y += h;
143	}
144	y = 0;
145	int bitpos = 0;
146	label_width = int(maxwidth + 10);
147	for (int i = 0 ; i < region->Dimensions ; i++) {
148	int nbZones = region->pDimensionDefinitions[i].zones;
149	if (nbZones) {
150
151	if (has_focus() && focus_line == i) {
152	Gdk::Rectangle farea(0, y, 150, 20);
153	get_style()->paint_focus(window, get_state(), farea, *this, "",
154	0, y, label_width, 20);
155	}
156
157	Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
158	window->draw_line(black, label_width, y, w - 1, y);
159	window->draw_line(black, w - 1, y + h - 1, label_width, y + h - 1);
160	window->draw_rectangle(get_style()->get_white_gc(), true,
161	label_width + 1, y + 1, (w - label_width - 2), h - 2);
162
163	int c = 0;
164	if (dimregno >= 0) {
165	int mask = ~(((1 << region->pDimensionDefinitions[i].bits) - 1) << bitpos);
166	c = dimregno & mask; // mask away this dimension
167	}
168	bool customsplits =
169	((region->pDimensionDefinitions[i].split_type == gig::split_type_normal &&
170	region->pDimensionRegions[c]->DimensionUpperLimits[i]) \|\|
171	(region->pDimensionDefinitions[i].dimension == gig::dimension_velocity &&
172	region->pDimensionRegions[c]->VelocityUpperLimit));
173
174	if (customsplits) {
175	window->draw_line(black, label_width, y + 1, label_width, y + h - 2);
176	for (int j = 0 ; j < nbZones ; j++) {
177	gig::DimensionRegion *d = region->pDimensionRegions[c + (j << bitpos)];
178	int upperLimit = d->DimensionUpperLimits[i];
179	if (!upperLimit) upperLimit = d->VelocityUpperLimit;
180	int v = upperLimit + 1;
181	int x = int((w - label_width - 1) * v / 128.0 + 0.5);
182	window->draw_line(black, label_width + x, y + 1, label_width + x, y + h - 2);
183	}
184	} else {
185	for (int j = 0 ; j <= nbZones ; j++) {
186	int x = int((w - label_width - 1) * j / double(nbZones) + 0.5);
187	window->draw_line(black, label_width + x, y + 1, label_width + x, y + h - 2);
188	}
189	}
190
191	if (dimregno >= 0) {
192	gc->set_foreground(red);
193	int dr = (dimregno >> bitpos) & ((1 << region->pDimensionDefinitions[i].bits) - 1);
194	if (customsplits) {
195	int x1 = 0;
196	for (int j = 0 ; j < nbZones ; j++) {
197	gig::DimensionRegion *d = region->pDimensionRegions[c + (j << bitpos)];
198	int upperLimit = d->DimensionUpperLimits[i];
199	if (!upperLimit) upperLimit = d->VelocityUpperLimit;
200	int v = upperLimit + 1;
201	int x2 = int((w - label_width - 1) * v / 128.0 + 0.5);
202	if (j == dr && x1 < x2) {
203	window->draw_rectangle(gc, true, label_width + x1 + 1, y + 1,
204	(x2 - x1) - 1, h - 2);
205	break;
206	}
207	x1 = x2;
208	}
209	} else {
210	if (dr < nbZones) {
211	int x1 = int((w - label_width - 1) * dr / double(nbZones) + 0.5);
212	int x2 = int((w - label_width - 1) * (dr + 1) / double(nbZones) + 0.5);
213	window->draw_rectangle(gc, true, label_width + x1 + 1, y + 1,
214	(x2 - x1) - 1, h - 2);
215	}
216	}
217	}
218
219	y += h;
220	}
221	bitpos += region->pDimensionDefinitions[i].bits;
222	}
223
224	return true;
225	}
226
227	void DimRegionChooser::on_size_request(GtkRequisition* requisition)
228	{
229	printf("DimRegionChooser::on_size_request\n");
230	*requisition = GtkRequisition();
231	requisition->height = region ? nbDimensions * 20 : 0;
232	requisition->width = 800;
233	}
234
235	void DimRegionChooser::set_instrument(gig::Instrument* instrument)
236	{
237	this->instrument = instrument;
238	this->region = 0;
239	this->dimregno = -1;
240	queue_draw();
241	}
242
243	void DimRegionChooser::set_region(gig::Region* region)
244	{
245	this->region = region;
246	dimregno = 0;
247	int bitcount = 0;
248	nbDimensions = 0;
249	for (int dim = 0 ; dim < region->Dimensions ; dim++) {
250	if (region->pDimensionDefinitions[dim].bits == 0) continue;
251	nbDimensions++;
252
253	int from = dimvalue_from[region->pDimensionDefinitions[dim].dimension];
254	int to = dimvalue_to[region->pDimensionDefinitions[dim].dimension];
255	int z;
256	switch (region->pDimensionDefinitions[dim].split_type) {
257	case gig::split_type_normal:
258	z = int((to + from) / 2.0 / region->pDimensionDefinitions[dim].zone_size);
259	break;
260	case gig::split_type_bit:
261	z = std::min(from, region->pDimensionDefinitions[dim].zones - 1);
262	break;
263	}
264	int mask =
265	~(((1 << region->pDimensionDefinitions[dim].bits) - 1) <<
266	bitcount);
267	dimregno &= mask;
268	dimregno \|= (z << bitcount);
269	bitcount += region->pDimensionDefinitions[dim].bits;
270	}
271	dimreg = region->pDimensionRegions[dimregno];
272	sel_changed_signal.emit();
273	queue_resize();
274	}
275
276	/*
277	void DimRegionChooser::set_dimregno(int x) {
278	this->dimregno = x;
279	queue_draw();
280	}
281	*/
282
283	bool DimRegionChooser::on_button_release_event(GdkEventButton* event)
284	{
285	if (resize.active) {
286	get_window()->pointer_ungrab(event->time);
287	resize.active = false;
288
289	if (region->pDimensionDefinitions[resize.dimension].dimension == gig::dimension_velocity) {
290
291	int bitpos = 0;
292	for (int j = 0 ; j < resize.dimension ; j++) {
293	bitpos += region->pDimensionDefinitions[j].bits;
294	}
295	int mask =
296	~(((1 << region->pDimensionDefinitions[resize.dimension].bits) - 1) << bitpos);
297	int c = dimregno & mask; // mask away this dimension
298
299	gig::DimensionRegion *d = region->pDimensionRegions[c + resize.offset];
300	if (d->DimensionUpperLimits[resize.dimension]) {
301	d->DimensionUpperLimits[resize.dimension] = resize.pos - 1;
302	} else {
303	d->VelocityUpperLimit = resize.pos - 1;
304	}
305
306	} else {
307	for (int i = 0 ; i < region->DimensionRegions ; ) {
308
309	gig::DimensionRegion *d = region->pDimensionRegions[i + resize.offset];
310	d->DimensionUpperLimits[resize.dimension] = resize.pos - 1;
311
312	int bitpos = 0;
313	int j;
314	for (j = 0 ; j < region->Dimensions ; j++) {
315	if (j != resize.dimension) {
316	int maxzones = 1 << region->pDimensionDefinitions[j].bits;
317	int dimj = (i >> bitpos) & (maxzones - 1);
318	if (dimj + 1 < region->pDimensionDefinitions[j].zones) break;
319	}
320	bitpos += region->pDimensionDefinitions[j].bits;
321	}
322	if (j == region->Dimensions) break;
323	i = (i & ~((1 << bitpos) - 1)) + (1 << bitpos);
324	}
325	}
326
327	if (!is_in_resize_zone(event->x, event->y) && cursor_is_resize) {
328	get_window()->set_cursor();
329	cursor_is_resize = false;
330	}
331	}
332	return true;
333	}
334
335	bool DimRegionChooser::on_button_press_event(GdkEventButton* event)
336	{
337	if (region && event->y < nbDimensions * h &&
338	event->x >= label_width && event->x < w) {
339
340	if (is_in_resize_zone(event->x, event->y)) {
341	Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
342	get_window()->pointer_grab(false,
343	Gdk::BUTTON_RELEASE_MASK \|
344	Gdk::POINTER_MOTION_MASK \|
345	Gdk::POINTER_MOTION_HINT_MASK,
346	double_arrow, event->time);
347	resize.active = true;
348	} else {
349	int ydim = int(event->y / h);
350	int dim;
351	for (dim = 0 ; dim < region->Dimensions ; dim++) {
352	if (region->pDimensionDefinitions[dim].bits == 0) continue;
353	if (ydim == 0) break;
354	ydim--;
355	}
356	int nbZones = region->pDimensionDefinitions[dim].zones;
357
358	int z = -1;
359	int bitpos = 0;
360	for (int i = 0 ; i < dim ; i++) {
361	bitpos += region->pDimensionDefinitions[i].bits;
362	}
363
364	int i = dim;
365	if (dimregno < 0) dimregno = 0;
366	int mask = ~(((1 << region->pDimensionDefinitions[i].bits) - 1) << bitpos);
367	int c = dimregno & mask; // mask away this dimension
368
369	bool customsplits =
370	((region->pDimensionDefinitions[i].split_type == gig::split_type_normal &&
371	region->pDimensionRegions[c]->DimensionUpperLimits[i]) \|\|
372	(region->pDimensionDefinitions[i].dimension == gig::dimension_velocity &&
373	region->pDimensionRegions[c]->VelocityUpperLimit));
374	if (customsplits) {
375	int val = int((event->x - label_width) * 128 / (w - label_width - 1));
376
377	if (region->pDimensionRegions[c]->DimensionUpperLimits[i]) {
378	for (z = 0 ; z < nbZones ; z++) {
379	gig::DimensionRegion *d = region->pDimensionRegions[c + (z << bitpos)];
380	if (val <= d->DimensionUpperLimits[i]) break;
381	}
382	} else {
383	for (z = 0 ; z < nbZones ; z++) {
384	gig::DimensionRegion *d = region->pDimensionRegions[c + (z << bitpos)];
385	if (val <= d->VelocityUpperLimit) break;
386	}
387	}
388	} else {
389	z = int((event->x - label_width) * nbZones / (w - label_width - 1));
390	}
391
392	printf("dim=%d z=%d dimensionsource=%d split_type=%d zones=%d zone_size=%f\n", dim, z,
393	region->pDimensionDefinitions[dim].dimension,
394	region->pDimensionDefinitions[dim].split_type,
395	region->pDimensionDefinitions[dim].zones,
396	region->pDimensionDefinitions[dim].zone_size);
397	#if 0
398	switch (region->pDimensionDefinitions[dim].split_type) {
399	case gig::split_type_normal:
400	dimvalue_from[region->pDimensionDefinitions[dim].dimension] =
401	int(z * region->pDimensionDefinitions[dim].zone_size);
402	dimvalue_to[region->pDimensionDefinitions[dim].dimension] =
403	int((z + 1) * region->pDimensionDefinitions[dim].zone_size) - 1;
404	break;
405	case gig::split_type_bit:
406	dimvalue_from[region->pDimensionDefinitions[dim].dimension] = z;
407	dimvalue_to[region->pDimensionDefinitions[dim].dimension] = z + 1;
408	break;
409	}
410	#endif
411
412	dimregno = c \| (z << bitpos);
413
414	focus_line = dim;
415	if (has_focus()) queue_draw();
416	else grab_focus();
417	dimreg = region->pDimensionRegions[dimregno];
418	sel_changed_signal.emit();
419	}
420	}
421	return true;
422	}
423
424	bool DimRegionChooser::on_motion_notify_event(GdkEventMotion* event)
425	{
426	Glib::RefPtr<Gdk::Window> window = get_window();
427	int x, y;
428	Gdk::ModifierType state = Gdk::ModifierType(0);
429	window->get_pointer(x, y, state);
430
431	if (resize.active) {
432	int k = int((x - label_width) * 128.0 / (w - label_width - 1) + 0.5);
433
434	if (k < resize.min) k = resize.min;
435	else if (k > resize.max) k = resize.max;
436
437	if (k < 2) k = 2; // k is upper limit + 1, upper limit 0 is forbidden
438
439	if (k != resize.pos) {
440	Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
441	Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
442
443	int prevx = int((w - label_width - 1) * resize.pos / 128.0 + 0.5) + label_width;
444	int x = int((w - label_width - 1) * k / 128.0 + 0.5) + label_width;
445	int y = resize.dimension * h;
446
447	if (resize.selected == resize.none) {
448	if (resize.pos != resize.min && resize.pos != resize.max) {
449	window->draw_line(white, prevx, y + 1, prevx, y + h - 2);
450	}
451	} else {
452	gc->set_foreground(red);
453
454	Glib::RefPtr<const Gdk::GC> left;
455	Glib::RefPtr<const Gdk::GC> right;
456	if (resize.selected == resize.left) {
457	left = gc;
458	right = white;
459	} else {
460	left = white;
461	right = gc;
462	}
463
464	if (k > resize.pos) {
465	int xx = resize.pos == resize.min ? 1 : 0;
466	window->draw_rectangle(left, true,
467	prevx + xx, y + 1, x - prevx - xx, h - 2);
468	} else {
469	int xx = resize.pos == resize.max ? 0 : 1;
470	window->draw_rectangle(right, true,
471	x, y + 1, prevx - x + xx, h - 2);
472	}
473	}
474	window->draw_line(black, x, y + 1, x, y + h - 2);
475	resize.pos = k;
476	}
477	} else {
478	if (is_in_resize_zone(x, y)) {
479	if (!cursor_is_resize) {
480	Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
481	window->set_cursor(double_arrow);
482	cursor_is_resize = true;
483	}
484	} else if (cursor_is_resize) {
485	window->set_cursor();
486	cursor_is_resize = false;
487	}
488	}
489	return true;
490	}
491
492	bool DimRegionChooser::is_in_resize_zone(double x, double y)
493	{
494	if (region && y < nbDimensions * h && x >= label_width && x < w) {
495	int ydim = int(y / h);
496	int dim;
497	int bitpos = 0;
498	for (dim = 0 ; dim < region->Dimensions ; dim++) {
499	if (region->pDimensionDefinitions[dim].bits == 0) continue;
500	if (ydim == 0) break;
501	ydim--;
502	bitpos += region->pDimensionDefinitions[dim].bits;
503	}
504	int nbZones = region->pDimensionDefinitions[dim].zones;
505
506	int c = 0;
507	if (dimregno >= 0) {
508	int mask = ~(((1 << region->pDimensionDefinitions[dim].bits) - 1) << bitpos);
509	c = dimregno & mask; // mask away this dimension
510	}
511	bool customsplits =
512	((region->pDimensionDefinitions[dim].split_type == gig::split_type_normal &&
513	region->pDimensionRegions[c]->DimensionUpperLimits[dim]) \|\|
514	(region->pDimensionDefinitions[dim].dimension == gig::dimension_velocity &&
515	region->pDimensionRegions[c]->VelocityUpperLimit));
516
517	if (customsplits) {
518	int prev_limit = 0;
519	for (int j = 0 ; j < nbZones - 1 ; j++) {
520	gig::DimensionRegion *d = region->pDimensionRegions[c + (j << bitpos)];
521	int upperLimit = d->DimensionUpperLimits[dim];
522	if (!upperLimit) upperLimit = d->VelocityUpperLimit;
523	int limit = upperLimit + 1;
524	int limitx = int((w - label_width - 1) * limit / 128.0 + 0.5) + label_width;
525
526	if (x <= limitx - 2) break;
527	if (x <= limitx + 2) {
528	resize.dimension = dim;
529	resize.offset = j << bitpos;
530	resize.pos = limit;
531	resize.min = prev_limit;
532
533	int dr = (dimregno >> bitpos) &
534	((1 << region->pDimensionDefinitions[dim].bits) - 1);
535	resize.selected = dr == j ? resize.left :
536	dr == j + 1 ? resize.right : resize.none;
537
538	j++;
539	gig::DimensionRegion *d = region->pDimensionRegions[c + (j << bitpos)];
540	int upperLimit = d->DimensionUpperLimits[dim];
541	if (!upperLimit) upperLimit = d->VelocityUpperLimit;
542	int limit = upperLimit + 1;
543	resize.max = limit;
544	return true;
545	}
546	prev_limit = limit;
547	}
548	}
549	}
550	return false;
551	}
552
553	sigc::signal<void> DimRegionChooser::signal_sel_changed()
554	{
555	return sel_changed_signal;
556	}
557
558	bool DimRegionChooser::on_focus(Gtk::DirectionType direction)
559	{
560	// TODO: kolla att region finns osv, dvs att det g�r att s�tta
561	// fokus.
562	if (direction == Gtk::DIR_TAB_FORWARD \|\|
563	direction == Gtk::DIR_DOWN) {
564	if (!has_focus()) {
565	focus_line = 0;
566	grab_focus();
567	return true;
568	} else {
569	if (focus_line + 1 < region->Dimensions) {
570	focus_line++;
571	queue_draw();
572	return true;
573	} else {
574	return false;
575	}
576	}
577	} else if (direction == Gtk::DIR_TAB_BACKWARD \|\|
578	direction == Gtk::DIR_UP) {
579	if (!has_focus()) {
580	focus_line = region->Dimensions - 1;
581	grab_focus();
582	return true;
583	} else {
584	if (focus_line > 0) {
585	focus_line--;
586	queue_draw();
587	return true;
588	} else {
589	return false;
590	}
591	}
592	} else if (!has_focus()) {
593	// TODO: kolla att focus_line finns!
594	grab_focus();
595	return true;
596	} else {
597	// TODO: �ka eller minska v�rde!
598	}
599	}