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-rw-r--r--src/jalv_qt.cpp730
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diff --git a/src/jalv_qt.cpp b/src/jalv_qt.cpp
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+/*
+ Copyright 2007-2016 David Robillard <http://drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include <algorithm>
+#include <cmath>
+#include <cstdio>
+
+#include "jalv_internal.h"
+
+#include "lv2/lv2plug.in/ns/ext/patch/patch.h"
+#include "lv2/lv2plug.in/ns/ext/port-props/port-props.h"
+
+#include <qglobal.h>
+
+#if QT_VERSION >= 0x050000
+# include <QAction>
+# include <QApplication>
+# include <QDial>
+# include <QGroupBox>
+# include <QLabel>
+# include <QLayout>
+# include <QMainWindow>
+# include <QMenu>
+# include <QMenuBar>
+# include <QScrollArea>
+# include <QStyle>
+# include <QTimer>
+# include <QWidget>
+# include <QWindow>
+#else
+# include <QtGui>
+#endif
+
+#define CONTROL_WIDTH 150
+#define DIAL_STEPS 10000
+
+static QApplication* app = NULL;
+
+class FlowLayout : public QLayout
+{
+public:
+ FlowLayout(QWidget* parent,
+ int margin = -1,
+ int hSpacing = -1,
+ int vSpacing = -1);
+
+ FlowLayout(int margin = -1, int hSpacing = -1, int vSpacing = -1);
+
+ ~FlowLayout();
+
+ void addItem(QLayoutItem* item);
+ int horizontalSpacing() const;
+ int verticalSpacing() const;
+ Qt::Orientations expandingDirections() const;
+ bool hasHeightForWidth() const;
+ int heightForWidth(int) const;
+ int count() const;
+ QLayoutItem* itemAt(int index) const;
+ QSize minimumSize() const;
+ void setGeometry(const QRect &rect);
+ QSize sizeHint() const;
+ QLayoutItem* takeAt(int index);
+
+private:
+ int doLayout(const QRect &rect, bool testOnly) const;
+ int smartSpacing(QStyle::PixelMetric pm) const;
+
+ QList<QLayoutItem*> itemList;
+ int m_hSpace;
+ int m_vSpace;
+};
+
+FlowLayout::FlowLayout(QWidget* parent, int margin, int hSpacing, int vSpacing)
+ : QLayout(parent), m_hSpace(hSpacing), m_vSpace(vSpacing)
+{
+ setContentsMargins(margin, margin, margin, margin);
+}
+
+FlowLayout::FlowLayout(int margin, int hSpacing, int vSpacing)
+ : m_hSpace(hSpacing), m_vSpace(vSpacing)
+{
+ setContentsMargins(margin, margin, margin, margin);
+}
+
+FlowLayout::~FlowLayout()
+{
+ QLayoutItem* item;
+ while ((item = takeAt(0))) {
+ delete item;
+ }
+}
+
+void
+FlowLayout::addItem(QLayoutItem* item)
+{
+ itemList.append(item);
+}
+
+int
+FlowLayout::horizontalSpacing() const
+{
+ if (m_hSpace >= 0) {
+ return m_hSpace;
+ } else {
+ return smartSpacing(QStyle::PM_LayoutHorizontalSpacing);
+ }
+}
+
+int
+FlowLayout::verticalSpacing() const
+{
+ if (m_vSpace >= 0) {
+ return m_vSpace;
+ } else {
+ return smartSpacing(QStyle::PM_LayoutVerticalSpacing);
+ }
+}
+
+int
+FlowLayout::count() const
+{
+ return itemList.size();
+}
+
+QLayoutItem*
+FlowLayout::itemAt(int index) const
+{
+ return itemList.value(index);
+}
+
+QLayoutItem*
+FlowLayout::takeAt(int index)
+{
+ if (index >= 0 && index < itemList.size()) {
+ return itemList.takeAt(index);
+ } else {
+ return 0;
+ }
+}
+
+Qt::Orientations
+FlowLayout::expandingDirections() const
+{
+ return 0;
+}
+
+bool
+FlowLayout::hasHeightForWidth() const
+{
+ return true;
+}
+
+int
+FlowLayout::heightForWidth(int width) const
+{
+ return doLayout(QRect(0, 0, width, 0), true);
+}
+
+void
+FlowLayout::setGeometry(const QRect &rect)
+{
+ QLayout::setGeometry(rect);
+ doLayout(rect, false);
+}
+
+QSize
+FlowLayout::sizeHint() const
+{
+ return minimumSize();
+}
+
+QSize
+FlowLayout::minimumSize() const
+{
+ QSize size;
+ QLayoutItem* item;
+ foreach (item, itemList) {
+ size = size.expandedTo(item->minimumSize());
+ }
+
+ return size + QSize(2 * margin(), 2 * margin());
+}
+
+int
+FlowLayout::doLayout(const QRect &rect, bool testOnly) const
+{
+ int left, top, right, bottom;
+ getContentsMargins(&left, &top, &right, &bottom);
+
+ QRect effectiveRect = rect.adjusted(+left, +top, -right, -bottom);
+ int x = effectiveRect.x();
+ int y = effectiveRect.y();
+ int lineHeight = 0;
+
+ QLayoutItem* item;
+ foreach (item, itemList) {
+ QWidget* wid = item->widget();
+
+ int spaceX = horizontalSpacing();
+ if (spaceX == -1) {
+ spaceX = wid->style()->layoutSpacing(QSizePolicy::PushButton,
+ QSizePolicy::PushButton,
+ Qt::Horizontal);
+ }
+ int spaceY = verticalSpacing();
+ if (spaceY == -1) {
+ spaceY = wid->style()->layoutSpacing(QSizePolicy::PushButton,
+ QSizePolicy::PushButton,
+ Qt::Vertical);
+ }
+
+ int nextX = x + item->sizeHint().width() + spaceX;
+ if (nextX - spaceX > effectiveRect.right() && lineHeight > 0) {
+ x = effectiveRect.x();
+ y = y + lineHeight + spaceY;
+ nextX = x + item->sizeHint().width() + spaceX;
+ lineHeight = 0;
+ }
+
+ if (!testOnly) {
+ item->setGeometry(QRect(QPoint(x, y), item->sizeHint()));
+ }
+
+ x = nextX;
+ lineHeight = qMax(lineHeight, item->sizeHint().height());
+ }
+ return y + lineHeight - rect.y() + bottom;
+}
+
+int
+FlowLayout::smartSpacing(QStyle::PixelMetric pm) const
+{
+ QObject* parent = this->parent();
+ if (!parent) {
+ return -1;
+ } else if (parent->isWidgetType()) {
+ QWidget* pw = static_cast<QWidget*>(parent);
+ return pw->style()->pixelMetric(pm, 0, pw);
+ } else {
+ return static_cast<QLayout*>(parent)->spacing();
+ }
+}
+
+class PresetAction : public QAction
+{
+ Q_OBJECT
+
+public:
+ PresetAction(QObject* parent, Jalv* jalv, LilvNode* preset)
+ : QAction(parent)
+ , _jalv(jalv)
+ , _preset(preset)
+ {
+ connect(this, SIGNAL(triggered()),
+ this, SLOT(presetChosen()));
+ }
+
+ Q_SLOT void presetChosen() {
+ jalv_apply_preset(_jalv, _preset);
+ }
+
+private:
+ Jalv* _jalv;
+ LilvNode* _preset;
+};
+
+typedef struct {
+ Jalv* jalv;
+ struct Port* port;
+} PortContainer;
+
+class Control : public QGroupBox
+{
+ Q_OBJECT
+
+public:
+ Control(PortContainer portContainer, QWidget* parent = 0);
+
+ Q_SLOT void dialChanged(int value);
+
+ void setValue(float value);
+
+ QDial* dial;
+
+private:
+ void setRange(float min, float max);
+ QString getValueLabel(float value);
+ float getValue();
+
+ const LilvPlugin* plugin;
+ struct Port* port;
+
+ QLabel* label;
+ QString name;
+ int steps;
+ float max;
+ float min;
+ bool isInteger;
+ bool isEnum;
+ bool isLogarithmic;
+
+ std::vector<float> scalePoints;
+ std::map<float, const char*> scaleMap;
+};
+
+#if QT_VERSION >= 0x050000
+# include "jalv_qt5_meta.hpp"
+#else
+# include "jalv_qt4_meta.hpp"
+#endif
+
+extern "C" {
+
+int
+jalv_init(int* argc, char*** argv, JalvOptions* opts)
+{
+ app = new QApplication(*argc, *argv, true);
+ app->setStyleSheet("QGroupBox::title { subcontrol-position: top center }");
+
+ return 0;
+}
+
+const char*
+jalv_native_ui_type(void)
+{
+#if QT_VERSION >= 0x050000
+ return "http://lv2plug.in/ns/extensions/ui#Qt5UI";
+#else
+ return "http://lv2plug.in/ns/extensions/ui#Qt4UI";
+#endif
+}
+
+void
+jalv_ui_port_event(Jalv* jalv,
+ uint32_t port_index,
+ uint32_t buffer_size,
+ uint32_t protocol,
+ const void* buffer)
+{
+ if (jalv->ui_instance) {
+ suil_instance_port_event(jalv->ui_instance, port_index,
+ buffer_size, protocol, buffer);
+ } else {
+ Control* control = (Control*)jalv->ports[port_index].widget;
+ if (control) {
+ control->setValue(*(const float*)buffer);
+ }
+ }
+}
+
+class Timer : public QTimer
+{
+public:
+ explicit Timer(Jalv* jalv) : _jalv(jalv) {}
+
+ void timerEvent(QTimerEvent* e) {
+ jalv_update(_jalv);
+ }
+
+private:
+ Jalv* _jalv;
+};
+
+static int
+add_preset_to_menu(Jalv* jalv,
+ const LilvNode* node,
+ const LilvNode* title,
+ void* data)
+{
+ QMenu* menu = (QMenu*)data;
+ const char* label = lilv_node_as_string(title);
+
+ QAction* action = new PresetAction(menu, jalv, lilv_node_duplicate(node));
+ action->setText(label);
+ menu->addAction(action);
+ return 0;
+}
+
+Control::Control(PortContainer portContainer, QWidget* parent)
+ : QGroupBox(parent)
+ , dial(new QDial())
+ , plugin(portContainer.jalv->plugin)
+ , port(portContainer.port)
+ , label(new QLabel())
+{
+ JalvNodes* nodes = &portContainer.jalv->nodes;
+ const LilvPort* lilvPort = port->lilv_port;
+
+ LilvNode* nmin;
+ LilvNode* nmax;
+ LilvNode* ndef;
+ lilv_port_get_range(plugin, lilvPort, &ndef, &nmin, &nmax);
+
+ LilvNode* stepsNode = lilv_port_get(plugin, lilvPort, nodes->pprops_rangeSteps);
+ if (lilv_node_is_int(stepsNode)) {
+ steps = std::max(lilv_node_as_int(stepsNode), 2);
+ } else {
+ steps = DIAL_STEPS;
+ }
+ lilv_node_free(stepsNode);
+
+ // Fill scalePoints Map
+ LilvScalePoints* sp = lilv_port_get_scale_points(plugin, lilvPort);
+ if (sp) {
+ LILV_FOREACH(scale_points, s, sp) {
+ const LilvScalePoint* p = lilv_scale_points_get(sp, s);
+ const LilvNode* val = lilv_scale_point_get_value(p);
+ if (!lilv_node_is_float(val) && !lilv_node_is_int(val)) {
+ continue;
+ }
+
+ const float f = lilv_node_as_float(val);
+ scalePoints.push_back(f);
+ scaleMap[f] = lilv_node_as_string(lilv_scale_point_get_label(p));
+ }
+
+ lilv_scale_points_free(sp);
+ }
+
+ // Check port properties
+ isLogarithmic = lilv_port_has_property(plugin, lilvPort, nodes->pprops_logarithmic);
+ isInteger = lilv_port_has_property(plugin, lilvPort, nodes->lv2_integer);
+ isEnum = lilv_port_has_property(plugin, lilvPort, nodes->lv2_enumeration);
+
+ if (lilv_port_has_property(plugin, lilvPort, nodes->lv2_toggled)) {
+ isInteger = true;
+
+ if (!scaleMap[0]) {
+ scaleMap[0] = "Off";
+ }
+ if (!scaleMap[1]) {
+ scaleMap[1] = "On" ;
+ }
+ }
+
+ // Find and set min, max and default values for port
+ float defaultValue = ndef ? lilv_node_as_float(ndef) : port->control;
+ setRange(lilv_node_as_float(nmin), lilv_node_as_float(nmax));
+ setValue(defaultValue);
+
+ // Fill layout
+ QVBoxLayout* layout = new QVBoxLayout();
+ layout->addWidget(label, 0, Qt::AlignHCenter);
+ layout->addWidget(dial, 0, Qt::AlignHCenter);
+ setLayout(layout);
+
+ setMinimumWidth(CONTROL_WIDTH);
+ setMaximumWidth(CONTROL_WIDTH);
+
+ LilvNode* nname = lilv_port_get_name(plugin, lilvPort);
+ name = QString("%1").arg(lilv_node_as_string(nname));
+
+ // Handle long names
+ if (fontMetrics().width(name) > CONTROL_WIDTH) {
+ setTitle(fontMetrics().elidedText(name, Qt::ElideRight, CONTROL_WIDTH));
+ } else {
+ setTitle(name);
+ }
+
+ // Set tooltip if comment is available
+ LilvNode* comment = lilv_port_get(plugin, lilvPort, nodes->rdfs_comment);
+ if (comment) {
+ QString* tooltip = new QString();
+ tooltip->append(lilv_node_as_string(comment));
+ setToolTip(*tooltip);
+ }
+
+ setFlat(true);
+
+ connect(dial, SIGNAL(valueChanged(int)), this, SLOT(dialChanged(int)));
+
+ lilv_node_free(nmin);
+ lilv_node_free(nmax);
+ lilv_node_free(ndef);
+ lilv_node_free(nname);
+ lilv_node_free(comment);
+}
+
+void
+Control::setValue(float value)
+{
+ float step;
+
+ if (isInteger) {
+ step = value;
+ } else if (isEnum) {
+ step = (std::find(scalePoints.begin(), scalePoints.end(), value)
+ - scalePoints.begin());
+ } else if (isLogarithmic) {
+ step = steps * log(value / min) / log(max / min);
+ } else {
+ step = value * steps;
+ }
+
+ dial->setValue(step);
+ label->setText(getValueLabel(value));
+}
+
+QString
+Control::getValueLabel(float value)
+{
+ if (scaleMap[value]) {
+ if (fontMetrics().width(scaleMap[value]) > CONTROL_WIDTH) {
+ label->setToolTip(scaleMap[value]);
+ return fontMetrics().elidedText(QString(scaleMap[value]),
+ Qt::ElideRight,
+ CONTROL_WIDTH);
+ }
+ return scaleMap[value];
+ }
+
+ return QString("%1").arg(value);
+}
+
+void
+Control::setRange(float minRange, float maxRange)
+{
+ min = minRange;
+ max = maxRange;
+
+ if (isLogarithmic) {
+ minRange = 1;
+ maxRange = steps;
+ } else if (isEnum) {
+ minRange = 0;
+ maxRange = scalePoints.size() - 1;
+ } else if (!isInteger) {
+ minRange *= steps;
+ maxRange *= steps;
+ }
+
+ dial->setRange(minRange, maxRange);
+}
+
+float
+Control::getValue()
+{
+ if (isEnum) {
+ return scalePoints[dial->value()];
+ } else if (isInteger) {
+ return dial->value();
+ } else if (isLogarithmic) {
+ return min * pow(max / min, (float)dial->value() / (steps - 1));
+ } else {
+ return (float)dial->value() / steps;
+ }
+}
+
+void
+Control::dialChanged(int dialValue)
+{
+ float value = getValue();
+
+ label->setText(getValueLabel(value));
+ port->control = value;
+}
+
+static bool
+portGroupLessThan(const PortContainer &p1, const PortContainer &p2)
+{
+ Jalv* jalv = p1.jalv;
+ const LilvPort* port1 = p1.port->lilv_port;
+ const LilvPort* port2 = p2.port->lilv_port;
+
+ LilvNode* group1 = lilv_port_get(
+ jalv->plugin, port1, jalv->nodes.pg_group);
+ LilvNode* group2 = lilv_port_get(
+ jalv->plugin, port2, jalv->nodes.pg_group);
+
+ const int cmp = (group1 && group2)
+ ? strcmp(lilv_node_as_string(group1), lilv_node_as_string(group2))
+ : ((intptr_t)group1 - (intptr_t)group2);
+
+ lilv_node_free(group2);
+ lilv_node_free(group1);
+
+ return cmp < 0;
+}
+
+static QWidget*
+build_control_widget(Jalv* jalv)
+{
+ const LilvPlugin* plugin = jalv->plugin;
+ LilvWorld* world = jalv->world;
+
+ QList<PortContainer> portContainers;
+ for (unsigned i = 0; i < jalv->num_ports; ++i) {
+ if (!jalv->opts.show_hidden &&
+ lilv_port_has_property(plugin, jalv->ports[i].lilv_port,
+ jalv->nodes.pprops_notOnGUI)) {
+ continue;
+ }
+
+ if (jalv->ports[i].type == TYPE_CONTROL) {
+ PortContainer portContainer;
+ portContainer.jalv = jalv;
+ portContainer.port = &jalv->ports[i];
+ portContainers.append(portContainer);
+ }
+ }
+
+ qSort(portContainers.begin(), portContainers.end(), portGroupLessThan);
+
+ QWidget* grid = new QWidget();
+ FlowLayout* flowLayout = new FlowLayout();
+ QLayout* layout = flowLayout;
+
+ LilvNode* lastGroup = NULL;
+ QHBoxLayout* groupLayout = NULL;
+ for (int i = 0; i < portContainers.count(); ++i) {
+ PortContainer portContainer = portContainers[i];
+ Port* port = portContainer.port;
+
+ Control* control = new Control(portContainer);
+ LilvNode* group = lilv_port_get(
+ plugin, port->lilv_port, jalv->nodes.pg_group);
+ if (group) {
+ if (!lilv_node_equals(group, lastGroup)) {
+ /* Group has changed */
+ LilvNode* groupName = lilv_world_get(
+ world, group, jalv->nodes.lv2_name, NULL);
+ QGroupBox* groupBox = new QGroupBox(lilv_node_as_string(groupName));
+
+ groupLayout = new QHBoxLayout();
+ groupBox->setLayout(groupLayout);
+ layout->addWidget(groupBox);
+ }
+
+ groupLayout->addWidget(control);
+ } else {
+ layout->addWidget(control);
+ }
+ lilv_node_free(lastGroup);
+ lastGroup = group;
+
+ uint32_t index = lilv_port_get_index(plugin, port->lilv_port);
+ jalv->ports[index].widget = control;
+ }
+ lilv_node_free(lastGroup);
+
+ grid->setLayout(layout);
+
+ return grid;
+}
+
+bool
+jalv_discover_ui(Jalv* jalv)
+{
+ return true;
+}
+
+int
+jalv_open_ui(Jalv* jalv)
+{
+ QMainWindow* win = new QMainWindow();
+ QMenu* file_menu = win->menuBar()->addMenu("&File");
+ QMenu* presets_menu = win->menuBar()->addMenu("&Presets");
+ QAction* quit_action = new QAction("&Quit", win);
+
+ QObject::connect(quit_action, SIGNAL(triggered()), win, SLOT(close()));
+ quit_action->setShortcuts(QKeySequence::Quit);
+ quit_action->setStatusTip("Quit Jalv");
+ file_menu->addAction(quit_action);
+
+ jalv_load_presets(jalv, add_preset_to_menu, presets_menu);
+
+ if (jalv->ui && !jalv->opts.generic_ui) {
+ jalv_ui_instantiate(jalv, jalv_native_ui_type(), win);
+ }
+
+ QWidget* widget;
+ if (jalv->ui_instance) {
+ widget = (QWidget*)suil_instance_get_widget(jalv->ui_instance);
+ } else {
+ QWidget* controlWidget = build_control_widget(jalv);
+
+ widget = new QScrollArea();
+ ((QScrollArea*)widget)->setWidget(controlWidget);
+ ((QScrollArea*)widget)->setWidgetResizable(true);
+ widget->setMinimumWidth(800);
+ widget->setMinimumHeight(600);
+ }
+
+ LilvNode* name = lilv_plugin_get_name(jalv->plugin);
+ win->setWindowTitle(lilv_node_as_string(name));
+ lilv_node_free(name);
+
+ win->setCentralWidget(widget);
+ app->connect(app, SIGNAL(lastWindowClosed()), app, SLOT(quit()));
+
+ win->show();
+ if (jalv->ui_instance && !jalv_ui_is_resizable(jalv)) {
+ widget->setMinimumSize(widget->width(), widget->height());
+ widget->setMaximumSize(widget->width(), widget->height());
+ win->adjustSize();
+ win->setFixedSize(win->width(), win->height());
+ } else {
+ win->resize(widget->width(),
+ widget->height() + win->menuBar()->height());
+ }
+
+ Timer* timer = new Timer(jalv);
+ timer->start(1000 / jalv->ui_update_hz);
+
+ int ret = app->exec();
+ zix_sem_post(&jalv->done);
+ return ret;
+}
+
+int
+jalv_close_ui(Jalv* jalv)
+{
+ app->quit();
+ return 0;
+}
+
+} // extern "C"
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