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Add API to dispatch keyboard events to VST Plugins

This commit is contained in:
Robin Gareus 2018-11-01 19:12:43 +01:00
parent abdc0da6e3
commit 197f5460df
2 changed files with 114 additions and 0 deletions
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112
gtk2_ardour/vst_plugin_ui.cc
View File

@ -170,3 +170,115 @@ VSTPluginUI::configure_handler (GdkEventConfigure*)
return false;
}
bool
VSTPluginUI::dispatch_effeditkey (GdkEventKey* gdk_key)
{
int effopcode;
switch (gdk_key->type) {
case GDK_KEY_PRESS:
effopcode = 59; // effEditKeyDown
break;
case GDK_KEY_RELEASE:
effopcode = 60; // effEditKeyUp
break;
default:
return false;
}
/* see https://github.com/DISTRHO/DPF/blob/master/distrho/src/DistrhoPluginVST.cpp */
int special_key = 0;
int ascii_key = 0;
switch (gdk_key->keyval) {
case GDK_BackSpace:
special_key = 1;
break;
case GDK_Tab:
case GDK_KP_Tab:
special_key = 2;
break;
case GDK_Return:
case GDK_KP_Enter:
special_key = 4;
break;
case GDK_Escape:
special_key = 6;
break;
case GDK_KP_Space:
special_key = 7;
break;
case GDK_End:
case GDK_KP_End:
special_key = 9;
break;
case GDK_Home:
case GDK_KP_Home:
special_key = 10;
break;
case GDK_Left:
special_key = 11;
break;
case GDK_Up:
special_key = 12;
break;
case GDK_Right:
special_key = 13;
break;
case GDK_Down:
special_key = 14;
break;
case GDK_Page_Up:
case GDK_KP_Page_Up:
special_key = 15;
break;
case GDK_Page_Down:
case GDK_KP_Page_Down:
special_key = 16;
case GDK_Insert:
special_key = 21;
break;
case GDK_Delete:
case GDK_KP_Delete:
special_key = 22;
break;
case GDK_Shift_L:
case GDK_Shift_R:
special_key = 54;
break;
case GDK_Control_L:
case GDK_Control_R:
special_key = 55;
break;
case GDK_Alt_L:
case GDK_Alt_R:
special_key = 56;
break;
case GDK_F1: special_key = 40; break;
case GDK_F2: special_key = 41; break;
case GDK_F3: special_key = 42; break;
case GDK_F4: special_key = 43; break;
case GDK_F5: special_key = 44; break;
case GDK_F6: special_key = 45; break;
case GDK_F7: special_key = 46; break;
case GDK_F8: special_key = 47; break;
case GDK_F9: special_key = 48; break;
case GDK_F10: special_key = 49; break;
case GDK_F11: special_key = 50; break;
case GDK_F12: special_key = 51; break;
default:
ascii_key = gdk_key->keyval;
break;
}
if (special_key > 0 || ascii_key > 0) {
VSTState* vstfx = _vst->state();
/* expect non-zero return if key was handled */
return 0 != vstfx->plugin->dispatcher (vstfx->plugin, effopcode, (int)ascii_key, (intptr_t)special_key, NULL, 0);
}
return false;
}

2
gtk2_ardour/vst_plugin_ui.h
View File

@ -50,6 +50,8 @@ protected:
Gtk::Socket _socket;
virtual void top_box_allocated (Gtk::Allocation&) {}
bool dispatch_effeditkey (GdkEventKey*);
private:
bool configure_handler (GdkEventConfigure *);