diff options
Diffstat (limited to 'src/gtk2_in_qt4.cpp')
| -rw-r--r-- | src/gtk2_in_qt4.cpp | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/gtk2_in_qt4.cpp b/src/gtk2_in_qt4.cpp new file mode 100644 index 0000000..546f7a9 --- /dev/null +++ b/src/gtk2_in_qt4.cpp @@ -0,0 +1,147 @@ +/* + Copyright 2011-2015 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 <QX11EmbedContainer> +#undef signals + +#include <gtk/gtk.h> +#include <gdk/gdkx.h> + +#include "./suil_config.h" +#include "./suil_internal.h" + +extern "C" { + +typedef struct _SuilGtk2InQt4Wrapper SuilGtk2InQt4Wrapper; + +struct _SuilGtk2InQt4Wrapper { + QX11EmbedContainer* host_widget; + QWidget* parent; + GtkWidget* plug; +}; + +static void +on_size_request(GtkWidget* widget, + GtkRequisition* requisition, + gpointer user_data) +{ + QX11EmbedContainer* const wrap = (QX11EmbedContainer*)user_data; + wrap->setMinimumSize(requisition->width, requisition->height); +} + +static void +on_size_allocate(GtkWidget* widget, + GdkRectangle* allocation, + gpointer user_data) +{ + QX11EmbedContainer* const wrap = (QX11EmbedContainer*)user_data; + wrap->resize(allocation->width, allocation->height); +} + +static void +wrapper_free(SuilWrapper* wrapper) +{ + SuilGtk2InQt4Wrapper* impl = (SuilGtk2InQt4Wrapper*)wrapper->impl; + + if (impl->plug) { + gtk_widget_destroy(impl->plug); + } + + if (impl->host_widget) { + delete impl->host_widget; + } + + free(impl); +} + +static int +wrapper_wrap(SuilWrapper* wrapper, + SuilInstance* instance) +{ + SuilGtk2InQt4Wrapper* const impl = (SuilGtk2InQt4Wrapper*)wrapper->impl; + QWidget* root = static_cast<QWidget*>(impl->parent); + QX11EmbedContainer* const wrap = new QX11EmbedContainer(root); + GtkWidget* const plug = gtk_plug_new(wrap->winId()); + GtkWidget* const widget = (GtkWidget*)instance->ui_widget; + + gtk_container_add(GTK_CONTAINER(plug), widget); + gtk_widget_show_all(plug); + +#ifdef SUIL_OLD_GTK + wrap->resize(widget->allocation.width, widget->allocation.height); +#else + GtkAllocation alloc; + gtk_widget_get_allocation(widget, &alloc); + wrap->resize(alloc.width, alloc.height); +#endif + + g_signal_connect( + G_OBJECT(plug), "size-request", G_CALLBACK(on_size_request), wrap); + + g_signal_connect( + G_OBJECT(plug), "size-allocate", G_CALLBACK(on_size_allocate), wrap); + + impl->host_widget = wrap; + impl->plug = plug; + instance->host_widget = wrap; + + return 0; +} + +SUIL_LIB_EXPORT +SuilWrapper* +suil_wrapper_new(SuilHost* host, + const char* host_type_uri, + const char* ui_type_uri, + LV2_Feature*** features, + unsigned n_features) +{ + /* We have to open libgtk here, so Gtk type symbols are present and will be + found by the introspection stuff. This is required at least to make + GtkBuilder use in UIs work, otherwise they will cause "Invalid object + type" errors. + */ + if (!host->gtk_lib) { + dlerror(); + host->gtk_lib = dlopen(SUIL_GTK2_LIB_NAME, RTLD_LAZY|RTLD_GLOBAL); + if (!host->gtk_lib) { + SUIL_ERRORF("Failed to open %s (%s)\n", + SUIL_GTK2_LIB_NAME, dlerror()); + return NULL; + } + gtk_init(NULL, NULL); + } + + /* Create wrapper implementation. */ + SuilGtk2InQt4Wrapper* const impl = (SuilGtk2InQt4Wrapper*) + calloc(1, sizeof(SuilGtk2InQt4Wrapper)); + + /* Set parent widget if given. */ + for (unsigned i = 0; i < n_features; ++i) { + if (!strcmp((*features)[i]->URI, LV2_UI__parent)) { + impl->parent = static_cast<QWidget*>((*features)[i]->data); + } + } + + SuilWrapper* wrapper = (SuilWrapper*)calloc(1, sizeof(SuilWrapper)); + wrapper->wrap = wrapper_wrap; + wrapper->free = wrapper_free; + wrapper->impl = impl; + + return wrapper; +} + +} // extern "C" |