Add my copyright to files I've modified.
[synfig.git] / synfig-studio / trunk / src / gtkmm / workarea.cpp
index bf9cebe..e7c800d 100644 (file)
@@ -7,6 +7,7 @@
 **     \legal
 **     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
 **     Copyright 2006 Yue Shi Lai
+**     Copyright (c) 2007 Chris Moore
 **
 **     This package is free software; you can redistribute it and/or
 **     modify it under the terms of the GNU General Public License as
@@ -51,6 +52,7 @@
 #include <synfig/target_scanline.h>
 #include <synfig/target_tile.h>
 #include <synfig/surface.h>
+#include <synfig/valuenode_composite.h>
 #include <synfigapp/canvasinterface.h>
 #include "event_mouse.h"
 #include "event_layerclick.h"
@@ -261,7 +263,7 @@ public:
        }
 
 
-       virtual bool start_frame(synfig::ProgressCallback *cb)
+       virtual bool start_frame(synfig::ProgressCallback */*cb*/)
        {
                synfig::Mutex::Lock lock(mutex);
 
@@ -505,7 +507,7 @@ public:
        }
 
 
-       virtual bool start_frame(synfig::ProgressCallback *cb)
+       virtual bool start_frame(synfig::ProgressCallback */*cb*/)
        {
                return true;
        }
@@ -633,7 +635,9 @@ WorkArea::WorkArea(etl::loose_handle<synfigapp::CanvasInterface> canvas_interfac
        dragging(DRAG_NONE),
        show_grid(false),
        tile_w(128),
-       tile_h(128)
+       tile_h(128),
+       timecode_width(0),
+       timecode_height(0)
 {
        show_guides=true;
        curr_input_device=0;
@@ -786,7 +790,7 @@ WorkArea::WorkArea(etl::loose_handle<synfigapp::CanvasInterface> canvas_interfac
                if(!data.empty())
                {
                        if(!load_sketch(data))
-                               load_sketch(dirname(canvas->get_file_name())+ETL_DIRECTORY_SEPERATOR+basename(data));
+                               load_sketch(dirname(canvas->get_file_name())+ETL_DIRECTORY_SEPARATOR+basename(data));
                }
        }
 
@@ -799,6 +803,11 @@ WorkArea::WorkArea(etl::loose_handle<synfigapp::CanvasInterface> canvas_interfac
 WorkArea::~WorkArea()
 {
 //     delete [] buffer;
+
+       // don't leave the render function queued if we are about to vanish;
+       // that causes crashes
+       if(render_idle_func_id)
+               render_idle_func_id=0;
 }
 
 void
@@ -1287,26 +1296,16 @@ WorkArea::on_drawing_area_event(GdkEvent *event)
 
                                if(duck)
                                {
-                                       clicked_duck=0;
+                                       // make a note of whether the duck we click on was selected or not
                                        if(duck_is_selected(duck))
-                                       {
                                                clicked_duck=duck;
-                                       }
                                        else
                                        {
-                                               if(modifier&GDK_SHIFT_MASK)
-                                               {
-                                                       select_duck(duck);
-                                               }
-                                               else if(modifier&GDK_CONTROL_MASK)
-                                               {
-                                                       select_duck(duck);
-                                               }
-                                               else
-                                               {
+                                               clicked_duck=0;
+                                               // if CTRL isn't pressed, clicking an unselected duck will unselect all other ducks
+                                               if(!(modifier&GDK_CONTROL_MASK))
                                                        clear_selected_ducks();
-                                                       select_duck(duck);
-                                               }
+                                               select_duck(duck);
                                        }
                                }
                        }
@@ -1320,6 +1319,37 @@ WorkArea::on_drawing_area_event(GdkEvent *event)
                        {
                                //get_selected_duck()->signal_user_click(0)();
                                //if(clicked_duck)clicked_duck->signal_user_click(0)();
+
+                               // if the user is holding shift while clicking on a tangent duck, consider splitting the tangent
+                               if (event->motion.state&GDK_SHIFT_MASK && duck->get_type() == Duck::TYPE_TANGENT)
+                               {
+                                       synfigapp::ValueDesc value_desc = duck->get_value_desc();
+
+                                       // we have the tangent, but need the vertex - that's the parent
+                                       if (value_desc.parent_is_value_node()) {
+                                               ValueNode_Composite::Handle parent_value_node = value_desc.get_parent_value_node();
+
+                                               // if the tangent isn't split, then split it
+                                               if (!((*(parent_value_node->get_link("split")))(get_time()).get(bool())))
+                                               {
+                                                       get_canvas_view()->canvas_interface()->
+                                                               change_value(synfigapp::ValueDesc(parent_value_node,
+                                                                                                                                 parent_value_node->get_link_index_from_name("split")),
+                                                                                        true);
+                                                       // rebuild the ducks from scratch, so the tangents ducks aren't connected
+                                                       get_canvas_view()->rebuild_ducks();
+
+                                                       // reprocess the mouse click
+                                                       return on_drawing_area_event(event);
+                                               }
+                                       } else {
+                                               // I don't know how to access the vertex from the tangent duck when originally drawing the bline in the bline tool
+
+                                               // synfig::ValueNode::Handle vn = value_desc.get_value_node();
+                                               synfig::info("parent isn't value node?  shift-drag-tangent doesn't work in bline tool yet...");
+                                       }
+                               }
+
                                dragging=DRAG_DUCK;
                                drag_point=mouse_pos;
                                //drawing_area->queue_draw();
@@ -1565,37 +1595,20 @@ WorkArea::on_drawing_area_event(GdkEvent *event)
                        get_canvas_view()->duck_refresh_flag=true;
                        if(!drag_did_anything)
                        {
-                               //etl::handle<Duck> duck=find_duck(mouse_pos,radius);
-
-                               if(modifier&GDK_SHIFT_MASK)
-                               {
-                                       //synfig::info("DUCK_DRAG_RELEASE: SHIFT-MASK ON!");
-                                       if(clicked_duck)
-                                       {
-                                               //synfig::info("DUCK_DRAG_RELEASE: CLICKED DUCK!");
-                                               unselect_duck(clicked_duck);
-                                       }
-                               }
-                               else if(modifier&GDK_CONTROL_MASK)
+                               // if we originally clicked on a selected duck ...
+                               if(clicked_duck)
                                {
-                                       //synfig::info("DUCK_DRAG_RELEASE: CONTROL-MASK ON!");
-                                       if(clicked_duck)
-                                       {
-                                               //synfig::info("DUCK_DRAG_RELEASE: CLICKED DUCK!");
+                                       // ... and CTRL is pressed, then just toggle the clicked duck
+                                       //     otherwise make the clicked duck the only selected duck
+                                       if(modifier&GDK_CONTROL_MASK)
                                                unselect_duck(clicked_duck);
-                                       }
-                               }
-                               else
-                               {
-                                       //synfig::info("DUCK_DRAG_RELEASE: NO MASK!");
-                                       if(clicked_duck)
+                                       else
                                        {
-                                               //synfig::info("DUCK_DRAG_RELEASE: CLICKED DUCK!");
                                                clear_selected_ducks();
                                                select_duck(clicked_duck);
                                        }
+                                       clicked_duck->signal_user_click(0)();
                                }
-                               if(clicked_duck)clicked_duck->signal_user_click(0)();
                        }
                        else
                        {
@@ -1623,9 +1636,18 @@ WorkArea::on_drawing_area_event(GdkEvent *event)
                                if(canvas_view->get_smach().process_event(EventBox(drag_point,mouse_pos,MouseButton(event->button.button),modifier))==Smach::RESULT_ACCEPT)
                                        return true;
 
-                               if(!(modifier&GDK_CONTROL_MASK) && !(modifier&GDK_SHIFT_MASK))
+                               // when dragging a box around some ducks:
+                               // SHIFT selects; CTRL toggles; SHIFT+CTRL unselects; <none> clears all then selects
+                               if(modifier&GDK_SHIFT_MASK)
+                                       select_ducks_in_box(drag_point,mouse_pos);
+
+                               if(modifier&GDK_CONTROL_MASK)
+                                       toggle_select_ducks_in_box(drag_point,mouse_pos);
+                               else if(!(modifier&GDK_SHIFT_MASK))
+                               {
                                        clear_selected_ducks();
-                               select_ducks_in_box(drag_point,mouse_pos);
+                                       select_ducks_in_box(drag_point,mouse_pos);
+                               }
                                ret=true;
                        }
                        else
@@ -1767,7 +1789,7 @@ WorkArea::on_drawing_area_event(GdkEvent *event)
 }
 
 bool
-WorkArea::on_hruler_event(GdkEvent *event)
+WorkArea::on_hruler_event(GdkEvent */*event*/)
 {
 /*
        switch(event->type)
@@ -1824,7 +1846,7 @@ WorkArea::on_hruler_event(GdkEvent *event)
 }
 
 bool
-WorkArea::on_vruler_event(GdkEvent *event)
+WorkArea::on_vruler_event(GdkEvent */*event*/)
 {
 /*
        switch(event->type)
@@ -1918,7 +1940,7 @@ WorkArea::screen_to_comp_coords(synfig::Point pos)const
 }
 
 synfig::Point
-WorkArea::comp_to_screen_coords(synfig::Point pos)const
+WorkArea::comp_to_screen_coords(synfig::Point /*pos*/)const
 {
        synfig::warning("WorkArea::comp_to_screen_coords: Not yet implemented");
        return synfig::Point();
@@ -2034,7 +2056,6 @@ WorkArea::refresh(GdkEventExpose*event)
                }
        }
 
-
        // Calculate the window coordinates of the top-left
        // corner of the canvas.
        //const synfig::Vector::value_type
@@ -2048,27 +2069,31 @@ WorkArea::refresh(GdkEventExpose*event)
 
        Glib::RefPtr<Gdk::GC> gc=Gdk::GC::create(drawing_area->get_window());
 
-
-
        // If we are in animate mode, draw a red border around the screen
        if(canvas_interface->get_mode()&synfigapp::MODE_ANIMATE)
        {
-               /*gc->set_rgb_fg_color(Gdk::Color("#FF0000"));
+// #define USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
+#ifdef USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
+               // This method of drawing the red border doesn't work on any
+               // Gtk theme which uses the crux-engine, hcengine, industrial,
+               // mist, or ubuntulooks engine, such as the default ubuntu
+               // 'Human' theme.
+               drawing_frame->modify_bg(Gtk::STATE_NORMAL,Gdk::Color("#FF0000"));
+#else
+               // So let's do it in a more primitive fashion.
+               gc->set_rgb_fg_color(Gdk::Color("#FF0000"));
                gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
                drawing_area->get_window()->draw_rectangle(
                        gc,
                        false,  // Fill?
                        0,0,    // x,y
-                       drawing_area->get_width()-1,drawing_area->get_height()-1        //w,h
-               );
-               */
-               drawing_frame->modify_bg(Gtk::STATE_NORMAL,Gdk::Color("#FF0000"));
-               //get_window()->set_background(Gdk::Color("#FF0000"));
+                       drawing_area->get_width()-1,drawing_area->get_height()-1); // w,h
+#endif
        }
+#ifdef USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
        else
                drawing_frame->unset_bg(Gtk::STATE_NORMAL);
-
-
+#endif
 
        previous_focus=get_focus_point();
 
@@ -2105,6 +2130,8 @@ WorkArea::set_quality(int x)
 }
 
 
+namespace studio
+{
 class WorkAreaProgress : public synfig::ProgressCallback
 {
        WorkArea *work_area;
@@ -2142,6 +2169,7 @@ public:
                return cb->amount_complete(current,total);
        }
 };
+}
 
 bool
 studio::WorkArea::async_update_preview()
@@ -2240,7 +2268,7 @@ studio::WorkArea::async_update_finished()
        if(!async_renderer)
                return;
 
-       // If we completed successfuly, then
+       // If we completed successfully, then
        // we aren't dirty anymore
        if(async_renderer->has_success())
        {
@@ -2301,7 +2329,6 @@ again:
        dirty=false;
        get_canvas_view()->reset_cancel_status();
 
-       bool ret=false;
        RendDesc desc=get_canvas()->rend_desc();
        //newdesc->set_flags(RendDesc::PX_ASPECT|RendDesc::IM_SPAN);
 
@@ -2328,7 +2355,7 @@ again:
        if(cb)
                cb->task(strprintf("Rendering canvas %s...",get_canvas()->get_name().c_str()));
 
-       target->render(cb);
+       bool ret = target->render(cb);
 
        if(!ret && !get_canvas_view()->get_cancel_status() && dirty)
        {
@@ -2352,7 +2379,7 @@ again:
        // it is being displayed correctly
        drawing_area->queue_draw();
 
-       // If we completed successfuly, then
+       // If we completed successfully, then
        // we aren't dirty anymore
        if(ret)
        {
@@ -2434,13 +2461,41 @@ WorkArea::queue_scroll()
 
        drawing_area->get_window()->scroll(-dx,-dy);
 
-       /*drawing_area->queue_draw_area(
-               0,
-               0,
-               128,
-               64
-       );
-       */
+       if (timecode_width && timecode_height)
+       {
+               drawing_area->queue_draw_area(4,       4,    4+timecode_width,    4+timecode_height);
+               drawing_area->queue_draw_area(4-dx, 4-dy, 4-dx+timecode_width, 4-dy+timecode_height);
+       }
+
+#ifndef USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
+       if(canvas_interface->get_mode()&synfigapp::MODE_ANIMATE)
+       {
+               int maxx = drawing_area->get_width()-1;
+               int maxy = drawing_area->get_height()-1;
+
+               if (dx > 0)
+               {
+                       drawing_area->queue_draw_area(      0, 0,       1, maxy);
+                       drawing_area->queue_draw_area(maxx-dx, 0, maxx-dx, maxy);
+               }
+               else if (dx < 0) 
+               {
+                       drawing_area->queue_draw_area(   maxx, 0,    maxx, maxy);
+                       drawing_area->queue_draw_area(    -dx, 0,     -dx, maxy);
+               }
+               if (dy > 0)
+               {
+                       drawing_area->queue_draw_area(0,       0, maxx,       1);
+                       drawing_area->queue_draw_area(0, maxy-dy, maxx, maxy-dy);
+               }
+               else if (dy < 0) 
+               {
+                       drawing_area->queue_draw_area(0,    maxy, maxx,    maxy);
+                       drawing_area->queue_draw_area(0,     -dy, maxx,     -dy);
+               }
+       }
+#endif // USE_FRAME_BACKGROUND_TO_SHOW_EDIT_MODE
+
        last_focus_point=focus_point;
 }
 
@@ -2478,9 +2533,11 @@ studio::WorkArea::zoom_norm()
 gboolean
 studio::WorkArea::__render_preview(gpointer data)
 {
-
        WorkArea *work_area(static_cast<WorkArea*>(data));
 
+       // there's no point anyone trying to cancel the timer now - it's gone off already
+       work_area->render_idle_func_id = 0;
+
        work_area->queued=false;
        work_area->async_render_preview(work_area->get_canvas_view()->get_time());
 
@@ -2520,7 +2577,12 @@ studio::WorkArea::queue_render_preview()
        {
                //synfig::info("queue_render_preview(): (re)queuing...");
                //render_idle_func_id=g_idle_add_full(G_PRIORITY_DEFAULT,__render_preview,this,NULL);
-               render_idle_func_id=g_timeout_add_full(G_PRIORITY_DEFAULT,queue_time,__render_preview,this,NULL);
+               render_idle_func_id=g_timeout_add_full(
+                       G_PRIORITY_DEFAULT,     // priority - 
+                       queue_time,                     // interval - the time between calls to the function, in milliseconds (1/1000ths of a second)
+                       __render_preview,       // function - function to call
+                       this,                           // data     - data to pass to function
+                       NULL);                          // notify   - function to call when the idle is removed, or NULL
                queued=true;
        }
 /*     else if(rendering)