image_buttons.c

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/*
 * $Id: image_buttons.c 38551 2011-07-21 00:41:00Z campbellbarton $
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * Contributor(s): Blender Foundation, 2002-2009
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include <string.h>
#include <stdio.h>

#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "DNA_node_types.h"
#include "DNA_scene_types.h"

#include "MEM_guardedalloc.h"

#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "BLI_editVert.h"
#include "BLI_rand.h"
#include "BLI_utildefines.h"

#include "BKE_colortools.h"
#include "BKE_context.h"
#include "BKE_customdata.h"
#include "BKE_image.h"
#include "BKE_mesh.h"
#include "BKE_node.h"
#include "BKE_screen.h"

#include "RE_pipeline.h"

#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"

#include "ED_gpencil.h"
#include "ED_image.h"
#include "ED_screen.h"

#include "RNA_access.h"

#include "WM_api.h"
#include "WM_types.h"

#include "UI_interface.h"
#include "UI_resources.h"

#include "image_intern.h"

#define B_REDR                          1
#define B_IMAGECHANGED          2
#define B_NOP                           0
#define B_TWINANIM                      5
#define B_SIMAGETILE            6
#define B_IDNAME                        10
#define B_FACESEL_PAINT_TEST    11
#define B_SIMA_RECORD           12
#define B_SIMA_PLAY                     13

#define B_SIMANOTHING           16
#define B_SIMABRUSHCHANGE       17      
#define B_SIMABRUSHBROWSE       18
#define B_SIMABRUSHLOCAL        19
#define B_SIMABRUSHDELETE       20
#define B_KEEPDATA                      21
#define B_SIMABTEXBROWSE        22
#define B_SIMABTEXDELETE        23
#define B_VPCOLSLI                      24
#define B_SIMACLONEBROWSE       25
#define B_SIMACLONEDELETE       26

/* proto */

static void image_info(Scene *scene, ImageUser *iuser, Image *ima, ImBuf *ibuf, char *str)
{
        int ofs= 0;

        str[0]= 0;
        
        if(ima==NULL) return;

        if(ibuf==NULL) {
                ofs+= sprintf(str, "Can't Load Image");
        }
        else {
                if(ima->source==IMA_SRC_MOVIE) {
                        ofs+= sprintf(str, "Movie");
                        if(ima->anim)
                                ofs+= sprintf(str+ofs, "%d frs", IMB_anim_get_duration(ima->anim));
                }
                else
                        ofs+= sprintf(str, "Image");

                ofs+= sprintf(str+ofs, ": size %d x %d,", ibuf->x, ibuf->y);

                if(ibuf->rect_float) {
                        if(ibuf->channels!=4) {
                                ofs+= sprintf(str+ofs, "%d float channel(s)", ibuf->channels);
                        }
                        else if(ibuf->depth==32)
                                ofs+= sprintf(str+ofs, " RGBA float");
                        else
                                ofs+= sprintf(str+ofs, " RGB float");
                }
                else {
                        if(ibuf->depth==32)
                                ofs+= sprintf(str+ofs, " RGBA byte");
                        else
                                ofs+= sprintf(str+ofs, " RGB byte");
                }
                if(ibuf->zbuf || ibuf->zbuf_float)
                        ofs+= sprintf(str+ofs, " + Z");

                if(ima->source==IMA_SRC_SEQUENCE) {
                        char *file= BLI_last_slash(ibuf->name);
                        if(file==NULL)  file= ibuf->name;
                        else                    file++;
                        ofs+= sprintf(str+ofs, ", %s", file);
                }
        }

        /* the frame number, even if we cant */
        if(ima->source==IMA_SRC_SEQUENCE) {
                /* don't use iuser->framenr directly because it may not be updated if auto-refresh is off */
                const int framenr= BKE_image_user_get_frame(iuser, CFRA, 0);
                ofs+= sprintf(str+ofs, ", Frame: %d", framenr);
        }

        (void)ofs;
}

/* gets active viewer user */
struct ImageUser *ntree_get_active_iuser(bNodeTree *ntree)
{
        bNode *node;
        
        if(ntree)
                for(node= ntree->nodes.first; node; node= node->next)
                        if( ELEM(node->type, CMP_NODE_VIEWER, CMP_NODE_SPLITVIEWER)) 
                                if(node->flag & NODE_DO_OUTPUT)
                                        return node->storage;
        return NULL;
}


/* ************ panel stuff ************* */

/* is used for both read and write... */

static int image_panel_poll(const bContext *C, PanelType *UNUSED(pt))
{
        SpaceImage *sima= CTX_wm_space_image(C);
        ImBuf *ibuf;
        void *lock;
        int result;

        ibuf= ED_space_image_acquire_buffer(sima, &lock);
        result= ibuf && ibuf->rect_float;
        ED_space_image_release_buffer(sima, lock);
        
        return result;
}

static void image_panel_curves(const bContext *C, Panel *pa)
{
        bScreen *sc= CTX_wm_screen(C);
        SpaceImage *sima= CTX_wm_space_image(C);
        ImBuf *ibuf;
        PointerRNA simaptr;
        int levels;
        void *lock;
        
        ibuf= ED_space_image_acquire_buffer(sima, &lock);
        
        if(ibuf) {
                if(sima->cumap==NULL)
                        sima->cumap= curvemapping_add(4, 0.0f, 0.0f, 1.0f, 1.0f);

                /* curvemap black/white levels only works for RGBA */
                levels= (ibuf->channels==4);

                RNA_pointer_create(&sc->id, &RNA_SpaceImageEditor, sima, &simaptr);
                uiTemplateCurveMapping(pa->layout, &simaptr, "curve", 'c', levels, 0);
        }

        ED_space_image_release_buffer(sima, lock);
}

#if 0
/* 0: disable preview 
   otherwise refresh preview
 
   XXX if you put this back, also check XXX in image_main_area_draw() */
*/
void image_preview_event(int event)
{
        int exec= 0;
        
        if(event==0) {
                G.scene->r.scemode &= ~R_COMP_CROP;
                exec= 1;
        }
        else {
                if(image_preview_active(curarea, NULL, NULL)) {
                        G.scene->r.scemode |= R_COMP_CROP;
                        exec= 1;
                }
                else
                        G.scene->r.scemode &= ~R_COMP_CROP;
        }
        
        if(exec && G.scene->nodetree) {
                /* should work when no node editor in screen..., so we execute right away */
                
                ntreeCompositTagGenerators(G.scene->nodetree);

                G.afbreek= 0;
                G.scene->nodetree->timecursor= set_timecursor;
                G.scene->nodetree->test_break= blender_test_break;
                
                BIF_store_spare();
                
                ntreeCompositExecTree(G.scene->nodetree, &G.scene->r, 1);       /* 1 is do_previews */
                
                G.scene->nodetree->timecursor= NULL;
                G.scene->nodetree->test_break= NULL;
                
                scrarea_do_windraw(curarea);
                waitcursor(0);
                
                WM_event_add_notifier(C, NC_IMAGE, ima_v);
        }       
}


/* nothing drawn here, we use it to store values */
static void preview_cb(struct ScrArea *sa, struct uiBlock *block)
{
        SpaceImage *sima= sa->spacedata.first;
        rctf dispf;
        rcti *disprect= &G.scene->r.disprect;
        int winx= (G.scene->r.size*G.scene->r.xsch)/100;
        int winy= (G.scene->r.size*G.scene->r.ysch)/100;
        int mval[2];
        
        if(G.scene->r.mode & R_BORDER) {
                winx*= (G.scene->r.border.xmax - G.scene->r.border.xmin);
                winy*= (G.scene->r.border.ymax - G.scene->r.border.ymin);
        }
        
        /* while dragging we need to update the rects, otherwise it doesn't end with correct one */

        BLI_init_rctf(&dispf, 15.0f, (block->maxx - block->minx)-15.0f, 15.0f, (block->maxy - block->miny)-15.0f);
        ui_graphics_to_window_rct(sa->win, &dispf, disprect);
        
        /* correction for gla draw */
        BLI_translate_rcti(disprect, -curarea->winrct.xmin, -curarea->winrct.ymin);
        
        calc_image_view(sima, 'p');
//      printf("winrct %d %d %d %d\n", disprect->xmin, disprect->ymin,disprect->xmax, disprect->ymax);
        /* map to image space coordinates */
        mval[0]= disprect->xmin; mval[1]= disprect->ymin;
        areamouseco_to_ipoco(v2d, mval, &dispf.xmin, &dispf.ymin);
        mval[0]= disprect->xmax; mval[1]= disprect->ymax;
        areamouseco_to_ipoco(v2d, mval, &dispf.xmax, &dispf.ymax);
        
        /* map to render coordinates */
        disprect->xmin= dispf.xmin;
        disprect->xmax= dispf.xmax;
        disprect->ymin= dispf.ymin;
        disprect->ymax= dispf.ymax;
        
        CLAMP(disprect->xmin, 0, winx);
        CLAMP(disprect->xmax, 0, winx);
        CLAMP(disprect->ymin, 0, winy);
        CLAMP(disprect->ymax, 0, winy);
//      printf("drawrct %d %d %d %d\n", disprect->xmin, disprect->ymin,disprect->xmax, disprect->ymax);

}

static int is_preview_allowed(ScrArea *cur)
{
        SpaceImage *sima= cur->spacedata.first;
        ScrArea *sa;

        /* check if another areawindow has preview set */
        for(sa=G.curscreen->areabase.first; sa; sa= sa->next) {
                if(sa!=cur && sa->spacetype==SPACE_IMAGE) {
                        if(image_preview_active(sa, NULL, NULL))
                                return 0;
                }
        }
        /* check image type */
        if(sima->image==NULL || sima->image->type!=IMA_TYPE_COMPOSITE)
                return 0;
        
        return 1;
}


static void image_panel_preview(ScrArea *sa, short cntrl)       // IMAGE_HANDLER_PREVIEW
{
        uiBlock *block;
        SpaceImage *sima= sa->spacedata.first;
        int ofsx, ofsy;
        
        if(is_preview_allowed(sa)==0) {
                rem_blockhandler(sa, IMAGE_HANDLER_PREVIEW);
                G.scene->r.scemode &= ~R_COMP_CROP;     /* quite weak */
                return;
        }
        
        block= uiBeginBlock(C, ar, "image_panel_preview", UI_EMBOSS);
        uiPanelControl(UI_PNL_SOLID | UI_PNL_CLOSE | UI_PNL_SCALE | cntrl);
        uiSetPanelHandler(IMAGE_HANDLER_PREVIEW);  // for close and esc
        
        ofsx= -150+(sa->winx/2)/sima->blockscale;
        ofsy= -100+(sa->winy/2)/sima->blockscale;
        if(uiNewPanel(C, ar, block, "Preview", "Image", ofsx, ofsy, 300, 200)==0) return;
        
        uiBlockSetDrawExtraFunc(block, preview_cb);
        
}
#endif


/* ********************* callbacks for standard image buttons *************** */

static char *slot_menu(void)
{
        char *str;
        int a, slot;
        
        str= MEM_callocN(IMA_MAX_RENDER_SLOT*32, "menu slots");
        
        strcpy(str, "Slot %t");
        a= strlen(str);

        for(slot=0; slot<IMA_MAX_RENDER_SLOT; slot++)
                a += sprintf(str+a, "|Slot %d %%x%d", slot+1, slot);
        
        return str;
}

/* TODO, curlay should be removed? */
static char *layer_menu(RenderResult *rr, short *UNUSED(curlay))
{
        RenderLayer *rl;
        int len= 64 + 32*BLI_countlist(&rr->layers);
        short a, nr= 0;
        char *str= MEM_callocN(len, "menu layers");
        
        strcpy(str, "Layer %t");
        a= strlen(str);
        
        /* compo result */
        if(rr->rectf) {
                a+= sprintf(str+a, "|Composite %%x0");
                nr= 1;
        }
        for(rl= rr->layers.first; rl; rl= rl->next, nr++) {
                a+= sprintf(str+a, "|%s %%x%d", rl->name, nr);
        }
        
        /* no curlay clip here, on render (redraws) the amount of layers can be 1 fir single-layer render */
        
        return str;
}

/* rl==NULL means composite result */
static char *pass_menu(RenderLayer *rl, short *curpass)
{
        RenderPass *rpass;
        int len= 64 + 32*(rl?BLI_countlist(&rl->passes):1);
        short a, nr= 0;
        char *str= MEM_callocN(len, "menu layers");
        
        strcpy(str, "Pass %t");
        a= strlen(str);
        
        /* rendered results don't have a Combined pass */
        if(rl==NULL || rl->rectf) {
                a+= sprintf(str+a, "|Combined %%x0");
                nr= 1;
        }
        
        if(rl)
                for(rpass= rl->passes.first; rpass; rpass= rpass->next, nr++)
                        a+= sprintf(str+a, "|%s %%x%d", rpass->name, nr);
        
        if(*curpass >= nr)
                *curpass= 0;
        
        return str;
}

static void set_frames_cb(bContext *C, void *ima_v, void *iuser_v)
{
        Scene *scene= CTX_data_scene(C);
        Image *ima= ima_v;
        ImageUser *iuser= iuser_v;
        
        if(ima->anim) {
                iuser->frames = IMB_anim_get_duration(ima->anim);
                BKE_image_user_calc_frame(iuser, scene->r.cfra, 0);
        }
}

/* 5 layer button callbacks... */
static void image_multi_cb(bContext *C, void *rr_v, void *iuser_v) 
{
        ImageUser *iuser= iuser_v;

        BKE_image_multilayer_index(rr_v, iuser); 
        WM_event_add_notifier(C, NC_IMAGE|ND_DRAW, NULL);
}
static void image_multi_inclay_cb(bContext *C, void *rr_v, void *iuser_v) 
{
        RenderResult *rr= rr_v;
        ImageUser *iuser= iuser_v;
        int tot= BLI_countlist(&rr->layers) + (rr->rectf?1:0);  /* fake compo result layer */

        if(iuser->layer<tot-1) {
                iuser->layer++;
                BKE_image_multilayer_index(rr, iuser); 
                WM_event_add_notifier(C, NC_IMAGE|ND_DRAW, NULL);
        }
}
static void image_multi_declay_cb(bContext *C, void *rr_v, void *iuser_v) 
{
        ImageUser *iuser= iuser_v;

        if(iuser->layer>0) {
                iuser->layer--;
                BKE_image_multilayer_index(rr_v, iuser); 
                WM_event_add_notifier(C, NC_IMAGE|ND_DRAW, NULL);
        }
}
static void image_multi_incpass_cb(bContext *C, void *rr_v, void *iuser_v) 
{
        RenderResult *rr= rr_v;
        ImageUser *iuser= iuser_v;
        RenderLayer *rl= BLI_findlink(&rr->layers, iuser->layer);

        if(rl) {
                int tot= BLI_countlist(&rl->passes) + (rl->rectf?1:0);  /* builtin render result has no combined pass in list */
                if(iuser->pass<tot-1) {
                        iuser->pass++;
                        BKE_image_multilayer_index(rr, iuser); 
                        WM_event_add_notifier(C, NC_IMAGE|ND_DRAW, NULL);
                }
        }
}
static void image_multi_decpass_cb(bContext *C, void *rr_v, void *iuser_v) 
{
        ImageUser *iuser= iuser_v;

        if(iuser->pass>0) {
                iuser->pass--;
                BKE_image_multilayer_index(rr_v, iuser); 
                WM_event_add_notifier(C, NC_IMAGE|ND_DRAW, NULL);
        }
}

#if 0
static void image_pack_cb(bContext *C, void *ima_v, void *iuser_v) 
{
        if(ima_v) {
                Image *ima= ima_v;
                if(ima->source!=IMA_SRC_SEQUENCE && ima->source!=IMA_SRC_MOVIE) {
                        if (ima->packedfile) {
                                if (G.fileflags & G_AUTOPACK) {
                                        if (okee("Disable AutoPack ?")) {
                                                G.fileflags &= ~G_AUTOPACK;
                                        }
                                }
                                
                                if ((G.fileflags & G_AUTOPACK) == 0) {
                                        unpackImage(NULL, ima, PF_ASK); /* XXX report errors */
                                        ED_undo_push(C, "Unpack image");
                                }
                        } 
                        else {
                                ImBuf *ibuf= BKE_image_get_ibuf(ima, iuser_v);
                                if (ibuf && (ibuf->userflags & IB_BITMAPDIRTY)) {
                                        // XXX error("Can't pack painted image. Save image or use Repack as PNG.");
                                } else {
                                        ima->packedfile = newPackedFile(NULL, ima->name); /* XXX report errors */
                                        ED_undo_push(C, "Pack image");
                                }
                        }
                }
        }
}
#endif

#if 0
static void image_freecache_cb(bContext *C, void *ima_v, void *unused) 
{
        Scene *scene= CTX_data_scene(C);
        BKE_image_free_anim_ibufs(ima_v, scene->r.cfra);
        WM_event_add_notifier(C, NC_IMAGE, ima_v);
}
#endif

#if 0
static void image_user_change(bContext *C, void *iuser_v, void *unused)
{
        Scene *scene= CTX_data_scene(C);
        BKE_image_user_calc_imanr(iuser_v, scene->r.cfra, 0);
}
#endif

static void uiblock_layer_pass_buttons(uiLayout *layout, RenderResult *rr, ImageUser *iuser, int w, short *render_slot)
{
        uiBlock *block= uiLayoutGetBlock(layout);
        uiBut *but;
        RenderLayer *rl= NULL;
        int wmenu1, wmenu2, wmenu3;
        char *strp;

        uiLayoutRow(layout, 1);

        /* layer menu is 1/3 larger than pass */
        wmenu1= (2*w)/5;
        wmenu2= (3*w)/5;
        wmenu3= (3*w)/6;
        
        /* menu buts */
        if(render_slot) {
                strp= slot_menu();
                but= uiDefButS(block, MENU, 0, strp,                                    0, 0, wmenu1, UI_UNIT_Y, render_slot, 0,0,0,0, "Select Slot");
                uiButSetFunc(but, image_multi_cb, rr, iuser);
                MEM_freeN(strp);
        }

        if(rr) {
                strp= layer_menu(rr, &iuser->layer);
                but= uiDefButS(block, MENU, 0, strp,                                    0, 0, wmenu2, UI_UNIT_Y, &iuser->layer, 0,0,0,0, "Select Layer");
                uiButSetFunc(but, image_multi_cb, rr, iuser);
                MEM_freeN(strp);
                
                rl= BLI_findlink(&rr->layers, iuser->layer - (rr->rectf?1:0)); /* fake compo layer, return NULL is meant to be */
                strp= pass_menu(rl, &iuser->pass);
                but= uiDefButS(block, MENU, 0, strp,                                    0, 0, wmenu3, UI_UNIT_Y, &iuser->pass, 0,0,0,0, "Select Pass");
                uiButSetFunc(but, image_multi_cb, rr, iuser);
                MEM_freeN(strp);        
        }
}

static void uiblock_layer_pass_arrow_buttons(uiLayout *layout, RenderResult *rr, ImageUser *iuser, short *render_slot)
{
        uiBlock *block= uiLayoutGetBlock(layout);
        uiLayout *row;
        uiBut *but;
        const float dpi_fac= UI_DPI_FAC;
        
        row= uiLayoutRow(layout, 1);

        if(rr==NULL || iuser==NULL)
                return;
        if(rr->layers.first==NULL) {
                uiItemL(row, "No Layers in Render Result.", ICON_NONE);
                return;
        }

        /* decrease, increase arrows */
        but= uiDefIconBut(block, BUT, 0, ICON_TRIA_LEFT,        0,0,17,20, NULL, 0, 0, 0, 0, "Previous Layer");
        uiButSetFunc(but, image_multi_declay_cb, rr, iuser);
        but= uiDefIconBut(block, BUT, 0, ICON_TRIA_RIGHT,       0,0,18,20, NULL, 0, 0, 0, 0, "Next Layer");
        uiButSetFunc(but, image_multi_inclay_cb, rr, iuser);

        uiblock_layer_pass_buttons(row, rr, iuser, 230 * dpi_fac, render_slot);

        /* decrease, increase arrows */
        but= uiDefIconBut(block, BUT, 0, ICON_TRIA_LEFT,        0,0,17,20, NULL, 0, 0, 0, 0, "Previous Pass");
        uiButSetFunc(but, image_multi_decpass_cb, rr, iuser);
        but= uiDefIconBut(block, BUT, 0, ICON_TRIA_RIGHT,       0,0,18,20, NULL, 0, 0, 0, 0, "Next Pass");
        uiButSetFunc(but, image_multi_incpass_cb, rr, iuser);

        uiBlockEndAlign(block);
}

// XXX HACK!
// static int packdummy=0;

typedef struct RNAUpdateCb {
        PointerRNA ptr;
        PropertyRNA *prop;
        ImageUser *iuser;
} RNAUpdateCb;

static void rna_update_cb(bContext *C, void *arg_cb, void *UNUSED(arg))
{
        RNAUpdateCb *cb= (RNAUpdateCb*)arg_cb;

        /* ideally this would be done by RNA itself, but there we have
           no image user available, so we just update this flag here */
        cb->iuser->ok= 1;

        /* we call update here on the pointer property, this way the
           owner of the image pointer can still define it's own update
           and notifier */
        RNA_property_update(C, &cb->ptr, cb->prop);
}

void uiTemplateImage(uiLayout *layout, bContext *C, PointerRNA *ptr, const char *propname, PointerRNA *userptr, int compact)
{
        PropertyRNA *prop;
        PointerRNA imaptr;
        RNAUpdateCb *cb;
        Image *ima;
        ImageUser *iuser;
        ImBuf *ibuf;
        Scene *scene= CTX_data_scene(C);
        uiLayout *row, *split, *col;
        uiBlock *block;
        uiBut *but;
        char str[128];
        void *lock;

        if(!ptr->data)
                return;

        prop= RNA_struct_find_property(ptr, propname);
        if(!prop) {
                printf("uiTemplateImage: property not found: %s.%s\n", RNA_struct_identifier(ptr->type), propname);
                return;
        }

        if(RNA_property_type(prop) != PROP_POINTER) {
                printf("uiTemplateImage: expected pointer property for %s.%s\n", RNA_struct_identifier(ptr->type), propname);
                return;
        }

        block= uiLayoutGetBlock(layout);

        imaptr= RNA_property_pointer_get(ptr, prop);
        ima= imaptr.data;
        iuser= userptr->data;

        cb= MEM_callocN(sizeof(RNAUpdateCb), "RNAUpdateCb");
        cb->ptr= *ptr;
        cb->prop= prop;
        cb->iuser= iuser;

        uiLayoutSetContextPointer(layout, "edit_image", &imaptr);

        if(!compact)
                uiTemplateID(layout, C, ptr, propname, "IMAGE_OT_new", "IMAGE_OT_open", NULL);

        // XXX missing: reload, pack

        if(ima) {
                uiBlockSetNFunc(block, rna_update_cb, MEM_dupallocN(cb), NULL);

                if(ima->source == IMA_SRC_VIEWER) {
                        ibuf= BKE_image_acquire_ibuf(ima, iuser, &lock);
                        image_info(scene, iuser, ima, ibuf, str);
                        BKE_image_release_ibuf(ima, lock);

                        uiItemL(layout, ima->id.name+2, ICON_NONE);
                        uiItemL(layout, str, ICON_NONE);

                        if(ima->type==IMA_TYPE_COMPOSITE) {
                                // XXX not working yet
#if 0
                                iuser= ntree_get_active_iuser(scene->nodetree);
                                if(iuser) {
                                        uiBlockBeginAlign(block);
                                        uiDefIconTextBut(block, BUT, B_SIMA_RECORD, ICON_REC, "Record", 10,120,100,20, 0, 0, 0, 0, 0, "");
                                        uiDefIconTextBut(block, BUT, B_SIMA_PLAY, ICON_PLAY, "Play",    110,120,100,20, 0, 0, 0, 0, 0, "");
                                        but= uiDefBut(block, BUT, B_NOP, "Free Cache",  210,120,100,20, 0, 0, 0, 0, 0, "");
                                        uiButSetFunc(but, image_freecache_cb, ima, NULL);
                                        
                                        if(iuser->frames)
                                                sprintf(str, "(%d) Frames:", iuser->framenr);
                                        else strcpy(str, "Frames:");
                                        uiBlockBeginAlign(block);
                                        uiDefButI(block, NUM, imagechanged, str,                10, 90,150, 20, &iuser->frames, 0.0, MAXFRAMEF, 0, 0, "Sets the number of images of a movie to use");
                                        uiDefButI(block, NUM, imagechanged, "StartFr:", 160,90,150,20, &iuser->sfra, 1.0, MAXFRAMEF, 0, 0, "Sets the global starting frame of the movie");
                                }
#endif
                        }
                        else if(ima->type==IMA_TYPE_R_RESULT) {
                                /* browse layer/passes */
                                Render *re= RE_GetRender(scene->id.name);
                                RenderResult *rr= RE_AcquireResultRead(re);
                                uiblock_layer_pass_arrow_buttons(layout, rr, iuser, &ima->render_slot);
                                RE_ReleaseResult(re);
                        }
                }
                else {
                        uiItemR(layout, &imaptr, "source", 0, NULL, ICON_NONE);

                        if(ima->source != IMA_SRC_GENERATED) {
                                row= uiLayoutRow(layout, 1);
                                if (ima->packedfile)
                                        uiItemO(row, "", ICON_PACKAGE, "image.unpack");
                                else
                                        uiItemO(row, "", ICON_UGLYPACKAGE, "image.pack");
                                
                                row= uiLayoutRow(row, 0);
                                uiLayoutSetEnabled(row, ima->packedfile==NULL);
                                uiItemR(row, &imaptr, "filepath", 0, "", ICON_NONE);
                                uiItemO(row, "", ICON_FILE_REFRESH, "image.reload");
                        }

                        // XXX what was this for?
#if 0
                         /* check for re-render, only buttons */
                        if(imagechanged==B_IMAGECHANGED) {
                                if(iuser->flag & IMA_ANIM_REFRESHED) {
                                        iuser->flag &= ~IMA_ANIM_REFRESHED;
                                        WM_event_add_notifier(C, NC_IMAGE, ima);
                                }
                        }
#endif

                        /* multilayer? */
                        if(ima->type==IMA_TYPE_MULTILAYER && ima->rr) {
                                uiblock_layer_pass_arrow_buttons(layout, ima->rr, iuser, NULL);
                        }
                        else if(ima->source != IMA_SRC_GENERATED) {
                                if(compact == 0) {
                                        ibuf= BKE_image_acquire_ibuf(ima, iuser, &lock);
                                        image_info(scene, iuser, ima, ibuf, str);
                                        BKE_image_release_ibuf(ima, lock);
                                        uiItemL(layout, str, ICON_NONE);
                                }
                        }
                        
                        if(ima->source != IMA_SRC_GENERATED) {
                                if(compact == 0) { /* background image view doesnt need these */
                                        uiItemS(layout);

                                        split= uiLayoutSplit(layout, 0, 0);

                                        col= uiLayoutColumn(split, 0);
                                        uiItemR(col, &imaptr, "use_fields", 0, NULL, ICON_NONE);
                                        row= uiLayoutRow(col, 0);
                                        uiLayoutSetActive(row, RNA_boolean_get(&imaptr, "use_fields"));
                                        uiItemR(row, &imaptr, "field_order", UI_ITEM_R_EXPAND, NULL, ICON_NONE);
                                        
                                        uiItemR(split, &imaptr, "use_premultiply", 0, NULL, ICON_NONE);
                                }
                        }

                        if(ELEM(ima->source, IMA_SRC_MOVIE, IMA_SRC_SEQUENCE)) {
                                uiItemS(layout);
                                
                                split= uiLayoutSplit(layout, 0, 0);

                                col= uiLayoutColumn(split, 0);
                                 
                                sprintf(str, "(%d) Frames", iuser->framenr);
                                uiItemR(col, userptr, "frame_duration", 0, str, ICON_NONE);
                                if(ima->anim) {
                                        block= uiLayoutGetBlock(col);
                                        but= uiDefBut(block, BUT, 0, "Match Movie Length", 0, 0, UI_UNIT_X*2, UI_UNIT_Y, NULL, 0, 0, 0, 0, "Set the number of frames to match the movie or sequence.");
                                        uiButSetFunc(but, set_frames_cb, ima, iuser);
                                }

                                uiItemR(col, userptr, "frame_start", 0, "Start", ICON_NONE);
                                uiItemR(col, userptr, "frame_offset", 0, NULL, ICON_NONE);

                                col= uiLayoutColumn(split, 0);
                                row= uiLayoutRow(col, 0);
                                uiLayoutSetActive(row, RNA_boolean_get(&imaptr, "use_fields"));
                                uiItemR(row, userptr, "fields_per_frame", 0, "Fields", ICON_NONE);
                                uiItemR(col, userptr, "use_auto_refresh", 0, NULL, ICON_NONE);
                                uiItemR(col, userptr, "use_cyclic", 0, NULL, ICON_NONE);
                        }
                        else if(ima->source==IMA_SRC_GENERATED) {
                                split= uiLayoutSplit(layout, 0, 0);

                                col= uiLayoutColumn(split, 1);
                                uiItemR(col, &imaptr, "generated_width", 0, "X", ICON_NONE);
                                uiItemR(col, &imaptr, "generated_height", 0, "Y", ICON_NONE);
                                uiItemR(col, &imaptr, "use_generated_float", 0, NULL, ICON_NONE);

                                uiItemR(split, &imaptr, "generated_type", UI_ITEM_R_EXPAND, NULL, ICON_NONE);
                        }

                                        }

                uiBlockSetNFunc(block, NULL, NULL, NULL);
        }

        MEM_freeN(cb);
}

void uiTemplateImageLayers(uiLayout *layout, bContext *C, Image *ima, ImageUser *iuser)
{
        Scene *scene= CTX_data_scene(C);
        RenderResult *rr;

        /* render layers and passes */
        if(ima && iuser) {
                const float dpi_fac= UI_DPI_FAC;
                rr= BKE_image_acquire_renderresult(scene, ima);
                uiblock_layer_pass_buttons(layout, rr, iuser, 160 * dpi_fac, (ima->type==IMA_TYPE_R_RESULT)? &ima->render_slot: NULL);
                BKE_image_release_renderresult(scene, ima);
        }
}

void image_buttons_register(ARegionType *art)
{
        PanelType *pt;

        pt= MEM_callocN(sizeof(PanelType), "spacetype image panel curves");
        strcpy(pt->idname, "IMAGE_PT_curves");
        strcpy(pt->label, "Curves");
        pt->draw= image_panel_curves;
        pt->poll= image_panel_poll;
        pt->flag |= PNL_DEFAULT_CLOSED;
        BLI_addtail(&art->paneltypes, pt);
        
        pt= MEM_callocN(sizeof(PanelType), "spacetype image panel gpencil");
        strcpy(pt->idname, "IMAGE_PT_gpencil");
        strcpy(pt->label, "Grease Pencil");
        pt->draw= gpencil_panel_standard;
        BLI_addtail(&art->paneltypes, pt);
}

static int image_properties(bContext *C, wmOperator *UNUSED(op))
{
        ScrArea *sa= CTX_wm_area(C);
        ARegion *ar= image_has_buttons_region(sa);
        
        if(ar)
                ED_region_toggle_hidden(C, ar);

        return OPERATOR_FINISHED;
}

void IMAGE_OT_properties(wmOperatorType *ot)
{
        ot->name= "Properties";
        ot->idname= "IMAGE_OT_properties";
        ot->description= "Toggle display properties panel";
        
        ot->exec= image_properties;
        ot->poll= ED_operator_image_active;
        
        /* flags */
        ot->flag= 0;
}

static int image_scopes(bContext *C, wmOperator *UNUSED(op))
{
        ScrArea *sa= CTX_wm_area(C);
        ARegion *ar= image_has_scope_region(sa);
        
        if(ar)
                ED_region_toggle_hidden(C, ar);
        
        return OPERATOR_FINISHED;
}

void IMAGE_OT_scopes(wmOperatorType *ot)
{
        ot->name= "Scopes";
        ot->idname= "IMAGE_OT_scopes";
        ot->description= "Toggle display scopes panel";
        
        ot->exec= image_scopes;
        ot->poll= ED_operator_image_active;
        
        /* flags */
        ot->flag= 0;
}