From 68cc677b65c94fa15e8441baab59efec0dcd69a9 Mon Sep 17 00:00:00 2001
From: Cary Sandvig <frang@users.sourceforge.net>
Date: Thu, 26 Oct 2000 23:57:17 +0000
Subject: [PATCH] new file

---
 panda/src/gui/config_gui.cxx   |  0
 panda/src/gui/config_gui.h     |  4 ++
 panda/src/gui/guiManager.cxx   | 79 ++++++++++++++++++++++++++++++++++
 panda/src/testbed/gui_demo.cxx | 72 +++++++++++++++++++++++++++++++
 4 files changed, 155 insertions(+)
 create mode 100644 panda/src/gui/config_gui.cxx
 create mode 100644 panda/src/gui/config_gui.h
 create mode 100644 panda/src/gui/guiManager.cxx
 create mode 100644 panda/src/testbed/gui_demo.cxx

diff --git a/panda/src/gui/config_gui.cxx b/panda/src/gui/config_gui.cxx
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/panda/src/gui/config_gui.h b/panda/src/gui/config_gui.h
new file mode 100644
index 0000000000..8b5e8957b8
--- /dev/null
+++ b/panda/src/gui/config_gui.h
@@ -0,0 +1,4 @@
+// Filename: config_gui.h
+// Created by:  cary (26Oct00)
+// 
+////////////////////////////////////////////////////////////////////
diff --git a/panda/src/gui/guiManager.cxx b/panda/src/gui/guiManager.cxx
new file mode 100644
index 0000000000..dba947f281
--- /dev/null
+++ b/panda/src/gui/guiManager.cxx
@@ -0,0 +1,79 @@
+// Filename: guiManager.cxx
+// Created by:  cary (25Oct00)
+// 
+////////////////////////////////////////////////////////////////////
+
+#include "guiManager.h"
+
+#include <dataRelation.h>
+#include <renderRelation.h>
+#include <depthTestTransition.h>
+#include <depthWriteTransition.h>
+#include <materialTransition.h>
+#include <cullFaceTransition.h>
+#include <lightTransition.h>
+#include <frustum.h>
+#include <orthoProjection.h>
+
+GuiManager::GuiMap* GuiManager::_map = (GuiManager::GuiMap*)0L;
+
+GuiManager* GuiManager::get_ptr(GraphicsWindow* w, MouseAndKeyboard* mak) {
+  GuiManager* ret;
+  if (_map == (GuiMap*)0L)
+    _map = new GuiMap;
+  GuiMap::const_iterator gi;
+  gi = _map->find(w);
+  if (gi != _map->end())
+    ret = (*gi).second;
+  else {
+    // going to allocate a new GuiManager for this window
+    // first see if there is a mouseWatcher already under the MouseAndKeyboard
+    bool has_watcher = false;
+    TypeHandle dgt = DataRelation::get_class_type();
+    MouseWatcher* watcher;
+    for (int i=0; i<mak->get_num_children(dgt); ++i)
+      if (mak->get_child(dgt, i)->get_child()->get_type() ==
+	  MouseWatcher::get_class_type()) {
+	has_watcher = true;
+	watcher = DCAST(MouseWatcher, mak->get_child(dgt, i)->get_child());
+      }
+    if (!has_watcher) {
+      // there isn't already a mousewatcher in the data graph, so we'll make
+      // one and re-parent everything to it.
+      watcher = new MouseWatcher("GUI watcher");
+      DataRelation* tmp = new DataRelation(mak, watcher);
+      for (int j=0; j<mak->get_num_children(dgt); ++j) {
+	NodeRelation* rel = mak->get_child(dgt, j);
+	if (rel != tmp)
+	  // it's not the node we just created, so reparent it to ours
+	  rel->change_parent(watcher);
+      }
+    }
+    // next, create a 2d layer for the GUI stuff to live in.
+    Node* root2d_top = new NamedNode("GUI_top");
+    Node* root2d = new NamedNode("GUI");
+    NodeRelation* root2d_arc = new RenderRelation(root2d_top, root2d);
+    root2d_arc->set_transition(new DepthTestTransition(DepthTestProperty::M_none), 1);
+    root2d_arc->set_transition(new DepthWriteTransition(DepthWriteTransition::off()), 1);
+    root2d_arc->set_transition(new LightTransition(LightTransition::all_off()), 1);
+    root2d_arc->set_transition(new MaterialTransition(MaterialTransition::off()), 1);
+    root2d_arc->set_transition(new CullFaceTransition(CullFaceProperty::M_cull_none), 1);
+    PT(Camera) cam = new Camera("GUI_cam");
+    new RenderRelation(root2d, cam);
+    cam->set_scene(root2d_top);
+    Frustumf frust2d;
+    frust2d.make_ortho_2D();
+    cam->set_projection(OrthoProjection(frust2d));
+    GraphicsChannel *chan = w->get_channel(0);  // root/full-window channel
+    nassertv(chan != (GraphicsChannel*)0L);
+    GraphicsLayer *layer = chan->make_layer();
+    nassertv(layer != (GraphicsLayer*)0L);
+    DisplayRegion *dr = layer->make_display_region();
+    nassertv(dr != (DisplayRegion*)0L);
+    dr->set_camera(cam);
+    // now make the manager for this window
+    ret = new GuiManager(watcher, root2d);
+    (*_map)[w] = ret;
+  }
+  return ret;
+}
diff --git a/panda/src/testbed/gui_demo.cxx b/panda/src/testbed/gui_demo.cxx
new file mode 100644
index 0000000000..f9c10b4932
--- /dev/null
+++ b/panda/src/testbed/gui_demo.cxx
@@ -0,0 +1,72 @@
+#include "framework.h"
+
+#include <eventHandler.h>
+#include <chancfg.h>
+#include <string>
+#include <renderModeTransition.h>
+#include <colorTransition.h>
+#include <colorBlendTransition.h>
+#include <cullFaceTransition.h>
+#include <depthTestTransition.h>
+#include <depthWriteTransition.h>
+#include <textureTransition.h>
+#include <textureApplyTransition.h>
+#include <lightTransition.h>
+#include <materialTransition.h>
+#include <transformTransition.h>
+#include <transparencyTransition.h>
+#include <drawBoundsTransition.h>
+#include <pruneTransition.h>
+#include <get_rel_pos.h>
+#include <boundingSphere.h>
+#include <geomSphere.h>
+#include <geomNode.h>
+#include <notify.h>
+#include <directionalLight.h>
+#include <renderRelation.h>
+#include <camera.h>
+#include <frustum.h>
+#include <orthoProjection.h>
+#include <perspectiveProjection.h>
+#include <textNode.h>
+#include <shaderTransition.h>
+#include <colorMatrixTransition.h>
+#include <alphaTransformTransition.h>
+#include <lensFlareNode.h>
+#include <texture.h>
+#include <texturePool.h>
+#include <spotlight.h>
+#include <nodePath.h>
+#include <pta_Colorf.h>
+#include <pta_float.h>
+#include <pt_Node.h>
+
+#include <guiManager.h>
+
+//From framework
+extern PT(GeomNode) geomnode;
+extern RenderRelation* first_arc;
+
+static void setup_gui(void) {
+  GuiManager* mgr = GuiManager::get_ptr(main_win, mak);
+}
+
+static void event_2(CPT_Event) {
+  static bool is_setup = false;
+  if (!is_setup) {
+    setup_gui();
+    is_setup = true;
+  }
+}
+
+void demo_keys(EventHandler&) {
+  new RenderRelation( lights, dlight );
+  have_dlight = true;
+
+  event_handler.add_hook("2", event_2);
+}
+
+int main(int argc, char *argv[]) {
+  define_keys = &demo_keys;
+  return framework_main(argc, argv);
+}