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/*
* ***** 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) 2009 Blender Foundation.
* All rights reserved.
*
* Contributor(s): Blender Foundation
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/interface/interface_utils.c
* \ingroup edinterface
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "DNA_object_types.h"
#include "DNA_screen_types.h"
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "BLI_string.h"
#include "BLI_listbase.h"
#include "BLF_translation.h"
#include "BKE_report.h"
#include "MEM_guardedalloc.h"
#include "RNA_access.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "interface_intern.h"
/*************************** RNA Utilities ******************************/
uiBut *uiDefAutoButR(uiBlock *block, PointerRNA *ptr, PropertyRNA *prop, int index, const char *name, int icon, int x1, int y1, int x2, int y2)
{
uiBut *but = NULL;
switch (RNA_property_type(prop)) {
case PROP_BOOLEAN:
{
int arraylen = RNA_property_array_length(ptr, prop);
if (arraylen && index == -1)
return NULL;
if (icon && name && name[0] == '\0')
but = uiDefIconButR_prop(block, UI_BTYPE_ICON_TOGGLE, 0, icon, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
else if (icon)
but = uiDefIconTextButR_prop(block, UI_BTYPE_ICON_TOGGLE, 0, icon, name, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
else
but = uiDefButR_prop(block, UI_BTYPE_CHECKBOX, 0, name, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
break;
}
case PROP_INT:
case PROP_FLOAT:
{
int arraylen = RNA_property_array_length(ptr, prop);
if (arraylen && index == -1) {
if (ELEM(RNA_property_subtype(prop), PROP_COLOR, PROP_COLOR_GAMMA))
but = uiDefButR_prop(block, UI_BTYPE_COLOR, 0, name, x1, y1, x2, y2, ptr, prop, -1, 0, 0, -1, -1, NULL);
}
else if (RNA_property_subtype(prop) == PROP_PERCENTAGE || RNA_property_subtype(prop) == PROP_FACTOR)
but = uiDefButR_prop(block, UI_BTYPE_NUM_SLIDER, 0, name, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
else
but = uiDefButR_prop(block, UI_BTYPE_NUM, 0, name, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
break;
}
case PROP_ENUM:
if (icon && name && name[0] == '\0')
but = uiDefIconButR_prop(block, UI_BTYPE_MENU, 0, icon, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
else if (icon)
but = uiDefIconTextButR_prop(block, UI_BTYPE_MENU, 0, icon, NULL, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
else
but = uiDefButR_prop(block, UI_BTYPE_MENU, 0, name, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
break;
case PROP_STRING:
if (icon && name && name[0] == '\0')
but = uiDefIconButR_prop(block, UI_BTYPE_TEXT, 0, icon, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
else if (icon)
but = uiDefIconTextButR_prop(block, UI_BTYPE_TEXT, 0, icon, name, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
else
but = uiDefButR_prop(block, UI_BTYPE_TEXT, 0, name, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
break;
case PROP_POINTER:
{
PointerRNA pptr;
pptr = RNA_property_pointer_get(ptr, prop);
if (!pptr.type)
pptr.type = RNA_property_pointer_type(ptr, prop);
icon = RNA_struct_ui_icon(pptr.type);
if (icon == ICON_DOT)
icon = 0;
but = uiDefIconTextButR_prop(block, UI_BTYPE_SEARCH_MENU, 0, icon, name, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
break;
}
case PROP_COLLECTION:
{
char text[256];
BLI_snprintf(text, sizeof(text), IFACE_("%d items"), RNA_property_collection_length(ptr, prop));
but = uiDefBut(block, UI_BTYPE_LABEL, 0, text, x1, y1, x2, y2, NULL, 0, 0, 0, 0, NULL);
UI_but_flag_enable(but, UI_BUT_DISABLED);
break;
}
default:
but = NULL;
break;
}
return but;
}
/**
* \a check_prop callback filters functions to avoid drawing certain properties,
* in cases where PROP_HIDDEN flag can't be used for a property.
*/
int uiDefAutoButsRNA(uiLayout *layout, PointerRNA *ptr,
bool (*check_prop)(PointerRNA *, PropertyRNA *),
const char label_align)
{
uiLayout *split, *col;
int flag;
const char *name;
int tot = 0;
assert(ELEM(label_align, '\0', 'H', 'V'));
RNA_STRUCT_BEGIN (ptr, prop)
{
flag = RNA_property_flag(prop);
if (flag & PROP_HIDDEN || (check_prop && check_prop(ptr, prop) == 0))
continue;
if (label_align != '\0') {
PropertyType type = RNA_property_type(prop);
const bool is_boolean = (type == PROP_BOOLEAN && !RNA_property_array_check(prop));
name = RNA_property_ui_name(prop);
if (label_align == 'V') {
col = uiLayoutColumn(layout, true);
if (!is_boolean)
uiItemL(col, name, ICON_NONE);
}
else { /* (label_align == 'H') */
BLI_assert(label_align == 'H');
split = uiLayoutSplit(layout, 0.5f, false);
col = uiLayoutColumn(split, false);
uiItemL(col, (is_boolean) ? "" : name, ICON_NONE);
col = uiLayoutColumn(split, false);
}
/* may meed to add more cases here.
* don't override enum flag names */
/* name is shown above, empty name for button below */
name = (flag & PROP_ENUM_FLAG || is_boolean) ? NULL : "";
}
else {
col = layout;
name = NULL; /* no smart label alignment, show default name with button */
}
uiItemFullR(col, ptr, prop, -1, 0, 0, name, ICON_NONE);
tot++;
}
RNA_STRUCT_END;
return tot;
}
/***************************** ID Utilities *******************************/
int UI_icon_from_id(ID *id)
{
Object *ob;
PointerRNA ptr;
short idcode;
if (id == NULL)
return ICON_NONE;
idcode = GS(id->name);
/* exception for objects */
if (idcode == ID_OB) {
ob = (Object *)id;
if (ob->type == OB_EMPTY)
return ICON_EMPTY_DATA;
else
return UI_icon_from_id(ob->data);
}
/* otherwise get it through RNA, creating the pointer
* will set the right type, also with subclassing */
RNA_id_pointer_create(id, &ptr);
return (ptr.type) ? RNA_struct_ui_icon(ptr.type) : ICON_NONE;
}
/* see: report_type_str */
int UI_icon_from_report_type(int type)
{
if (type & RPT_ERROR_ALL)
return ICON_ERROR;
else if (type & RPT_WARNING_ALL)
return ICON_ERROR;
else if (type & RPT_INFO_ALL)
return ICON_INFO;
else
return ICON_NONE;
}
/********************************** Misc **************************************/
/**
* Returns the best "UI" precision for given floating value, so that e.g. 10.000001 rather gets drawn as '10'...
*/
int UI_calc_float_precision(int prec, double value)
{
static const double pow10_neg[UI_PRECISION_FLOAT_MAX + 1] = {1e0, 1e-1, 1e-2, 1e-3, 1e-4, 1e-5, 1e-6, 1e-7};
static const double max_pow = 10000000.0; /* pow(10, UI_PRECISION_FLOAT_MAX) */
BLI_assert(prec <= UI_PRECISION_FLOAT_MAX);
BLI_assert(fabs(pow10_neg[prec] - pow(10, -prec)) < 1e-16);
/* check on the number of decimal places need to display the number, this is so 0.00001 is not displayed as 0.00,
* _but_, this is only for small values si 10.0001 will not get the same treatment.
*/
value = ABS(value);
if ((value < pow10_neg[prec]) && (value > (1.0 / max_pow))) {
int value_i = (int)((value * max_pow) + 0.5);
if (value_i != 0) {
const int prec_span = 3; /* show: 0.01001, 5 would allow 0.0100001 for eg. */
int test_prec;
int prec_min = -1;
int dec_flag = 0;
int i = UI_PRECISION_FLOAT_MAX;
while (i && value_i) {
if (value_i % 10) {
dec_flag |= 1 << i;
prec_min = i;
}
value_i /= 10;
i--;
}
/* even though its a small value, if the second last digit is not 0, use it */
test_prec = prec_min;
dec_flag = (dec_flag >> (prec_min + 1)) & ((1 << prec_span) - 1);
while (dec_flag) {
test_prec++;
dec_flag = dec_flag >> 1;
}
if (test_prec > prec) {
prec = test_prec;
}
}
}
CLAMP(prec, 0, UI_PRECISION_FLOAT_MAX);
return prec;
}
/* -------------------------------------------------------------------- */
/* Modal Button Store API */
/** \name Button Store
*
* Store for modal operators & handlers to register button pointers
* which are maintained while drawing or NULL when removed.
*
* This is needed since button pointers are continuously freed and re-allocated.
*
* \{ */
struct uiButStore {
struct uiButStore *next, *prev;
uiBlock *block;
ListBase items;
};
struct uiButStoreElem {
struct uiButStoreElem *next, *prev;
uiBut **but_p;
};
/**
* Create a new button store, the caller must manage and run #UI_butstore_free
*/
uiButStore *UI_butstore_create(uiBlock *block)
{
uiButStore *bs_handle = MEM_callocN(sizeof(uiButStore), __func__);
bs_handle->block = block;
BLI_addtail(&block->butstore, bs_handle);
return bs_handle;
}
void UI_butstore_free(uiBlock *block, uiButStore *bs_handle)
{
BLI_freelistN(&bs_handle->items);
BLI_remlink(&block->butstore, bs_handle);
MEM_freeN(bs_handle);
}
bool UI_butstore_is_valid(uiButStore *bs)
{
return (bs->block != NULL);
}
bool UI_butstore_is_registered(uiBlock *block, uiBut *but)
{
uiButStore *bs_handle;
for (bs_handle = block->butstore.first; bs_handle; bs_handle = bs_handle->next) {
uiButStoreElem *bs_elem;
for (bs_elem = bs_handle->items.first; bs_elem; bs_elem = bs_elem->next) {
if (*bs_elem->but_p == but) {
return true;
}
}
}
return false;
}
void UI_butstore_register(uiButStore *bs_handle, uiBut **but_p)
{
uiButStoreElem *bs_elem = MEM_callocN(sizeof(uiButStoreElem), __func__);
BLI_assert(*but_p);
bs_elem->but_p = but_p;
BLI_addtail(&bs_handle->items, bs_elem);
}
void UI_butstore_unregister(uiButStore *bs_handle, uiBut **but_p)
{
uiButStoreElem *bs_elem, *bs_elem_next;
for (bs_elem = bs_handle->items.first; bs_elem; bs_elem = bs_elem_next) {
bs_elem_next = bs_elem->next;
if (bs_elem->but_p == but_p) {
BLI_remlink(&bs_handle->items, bs_elem);
MEM_freeN(bs_elem);
}
}
BLI_assert(0);
}
/**
* NULL all pointers, don't free since the owner needs to be able to inspect.
*/
void UI_butstore_clear(uiBlock *block)
{
uiButStore *bs_handle;
for (bs_handle = block->butstore.first; bs_handle; bs_handle = bs_handle->next) {
uiButStoreElem *bs_elem;
bs_handle->block = NULL;
for (bs_elem = bs_handle->items.first; bs_elem; bs_elem = bs_elem->next) {
*bs_elem->but_p = NULL;
}
}
}
/**
* Map freed buttons from the old block and update pointers.
*/
void UI_butstore_update(uiBlock *block)
{
uiButStore *bs_handle;
/* move this list to the new block */
if (block->oldblock) {
if (block->oldblock->butstore.first) {
block->butstore = block->oldblock->butstore;
BLI_listbase_clear(&block->oldblock->butstore);
}
}
if (LIKELY(block->butstore.first == NULL))
return;
/* warning, loop-in-loop, in practice we only store <10 buttons at a time,
* so this isn't going to be a problem, if that changes old-new mapping can be cached first */
for (bs_handle = block->butstore.first; bs_handle; bs_handle = bs_handle->next) {
BLI_assert((bs_handle->block == NULL) ||
(bs_handle->block == block) ||
(block->oldblock && block->oldblock == bs_handle->block));
if (bs_handle->block == block->oldblock) {
uiButStoreElem *bs_elem;
bs_handle->block = block;
for (bs_elem = bs_handle->items.first; bs_elem; bs_elem = bs_elem->next) {
if (*bs_elem->but_p) {
uiBut *but_new = ui_but_find_new(block, *bs_elem->but_p);
/* can be NULL if the buttons removed,
* note: we could allow passing in a callback when buttons are removed
* so the caller can cleanup */
*bs_elem->but_p = but_new;
}
}
}
}
}
/** \} */
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