示例#1
0
/* driver settings for active F-Curve (only for 'Drivers' mode) */
static void graph_panel_drivers(const bContext *C, Panel *pa)
{
	bAnimListElem *ale;
	FCurve *fcu;
	ChannelDriver *driver;
	DriverVar *dvar;
	
	PointerRNA driver_ptr;
	uiLayout *col;
	uiBlock *block;
	uiBut *but;
	
	/* Get settings from context */
	if (!graph_panel_context(C, &ale, &fcu))
		return;
	driver = fcu->driver;
	
	/* set event handler for panel */
	block = uiLayoutGetBlock(pa->layout); // xxx?
	uiBlockSetHandleFunc(block, do_graph_region_driver_buttons, NULL);
	
	/* general actions - management */
	col = uiLayoutColumn(pa->layout, FALSE);
	block = uiLayoutGetBlock(col);
	but = uiDefBut(block, BUT, B_IPO_DEPCHANGE, IFACE_("Update Dependencies"), 0, 0, 10 * UI_UNIT_X, 22,
	               NULL, 0.0, 0.0, 0, 0, TIP_("Force updates of dependencies"));
	uiButSetFunc(but, driver_update_flags_cb, fcu, NULL);

	but = uiDefBut(block, BUT, B_IPO_DEPCHANGE, IFACE_("Remove Driver"), 0, 0, 10 * UI_UNIT_X, 18,
	               NULL, 0.0, 0.0, 0, 0, TIP_("Remove this driver"));
	uiButSetNFunc(but, driver_remove_cb, MEM_dupallocN(ale), NULL);
		
	/* driver-level settings - type, expressions, and errors */
	RNA_pointer_create(ale->id, &RNA_Driver, driver, &driver_ptr);
	
	col = uiLayoutColumn(pa->layout, TRUE);
	block = uiLayoutGetBlock(col);
	uiItemR(col, &driver_ptr, "type", 0, NULL, ICON_NONE);

	/* show expression box if doing scripted drivers, and/or error messages when invalid drivers exist */
	if (driver->type == DRIVER_TYPE_PYTHON) {
		/* expression */
		uiItemR(col, &driver_ptr, "expression", 0, IFACE_("Expr"), ICON_NONE);

		/* errors? */
		if (driver->flag & DRIVER_FLAG_INVALID)
			uiItemL(col, IFACE_("ERROR: invalid Python expression"), ICON_ERROR);
	}
	else {
		/* errors? */
		if (driver->flag & DRIVER_FLAG_INVALID)
			uiItemL(col, IFACE_("ERROR: invalid target channel(s)"), ICON_ERROR);
	}
		
	col = uiLayoutColumn(pa->layout, TRUE);
	/* debug setting */
	uiItemR(col, &driver_ptr, "show_debug_info", 0, NULL, ICON_NONE);
		
	/* value of driver */
	if (driver->flag & DRIVER_FLAG_SHOWDEBUG) {
		uiLayout *row = uiLayoutRow(col, TRUE);
		char valBuf[32];
			
		uiItemL(row, IFACE_("Driver Value:"), ICON_NONE);
			
		BLI_snprintf(valBuf, sizeof(valBuf), "%.3f", driver->curval);
		uiItemL(row, valBuf, ICON_NONE);
	}
	
	/* add driver variables */
	col = uiLayoutColumn(pa->layout, FALSE);
	block = uiLayoutGetBlock(col);
	but = uiDefBut(block, BUT, B_IPO_DEPCHANGE, IFACE_("Add Variable"), 0, 0, 10 * UI_UNIT_X, UI_UNIT_Y,
	               NULL, 0.0, 0.0, 0, 0, TIP_("Add a new target variable for this Driver"));
	uiButSetFunc(but, driver_add_var_cb, driver, NULL);
	
	/* loop over targets, drawing them */
	for (dvar = driver->variables.first; dvar; dvar = dvar->next) {
		PointerRNA dvar_ptr;
		uiLayout *box, *row;
		
		/* sub-layout column for this variable's settings */
		col = uiLayoutColumn(pa->layout, TRUE);
		
		/* header panel */
		box = uiLayoutBox(col);
		/* first row context info for driver */
		RNA_pointer_create(ale->id, &RNA_DriverVariable, dvar, &dvar_ptr);

		row = uiLayoutRow(box, FALSE);
		block = uiLayoutGetBlock(row);
		/* variable name */
		uiItemR(row, &dvar_ptr, "name", 0, "", ICON_NONE);

		/* remove button */
		uiBlockSetEmboss(block, UI_EMBOSSN);
		but = uiDefIconBut(block, BUT, B_IPO_DEPCHANGE, ICON_X, 290, 0, UI_UNIT_X, UI_UNIT_Y,
		                   NULL, 0.0, 0.0, 0.0, 0.0, IFACE_("Delete target variable"));
		uiButSetFunc(but, driver_delete_var_cb, driver, dvar);
		uiBlockSetEmboss(block, UI_EMBOSS);

		/* variable type */
		row = uiLayoutRow(box, FALSE);
		uiItemR(row, &dvar_ptr, "type", 0, "", ICON_NONE);
				
		/* variable type settings */
		box = uiLayoutBox(col);
		/* controls to draw depends on the type of variable */
		switch (dvar->type) {
			case DVAR_TYPE_SINGLE_PROP:     /* single property */
				graph_panel_driverVar__singleProp(box, ale->id, dvar);
				break;
			case DVAR_TYPE_ROT_DIFF:     /* rotational difference */
				graph_panel_driverVar__rotDiff(box, ale->id, dvar);
				break;
			case DVAR_TYPE_LOC_DIFF:     /* location difference */
				graph_panel_driverVar__locDiff(box, ale->id, dvar);
				break;
			case DVAR_TYPE_TRANSFORM_CHAN:     /* transform channel */
				graph_panel_driverVar__transChan(box, ale->id, dvar);
				break;
		}

		/* value of variable */
		if (driver->flag & DRIVER_FLAG_SHOWDEBUG) {
			char valBuf[32];

			box = uiLayoutBox(col);
			row = uiLayoutRow(box, TRUE);
			uiItemL(row, IFACE_("Value:"), ICON_NONE);

			BLI_snprintf(valBuf, sizeof(valBuf), "%.3f", dvar->curval);
			uiItemL(row, valBuf, ICON_NONE);
		}
	}
	
	/* cleanup */
	MEM_freeN(ale);
}
/* driver settings for active F-Curve (only for 'Drivers' mode) */
static void graph_panel_drivers(const bContext *C, Panel *pa)
{
	bAnimListElem *ale;
	FCurve *fcu;
	ChannelDriver *driver;
	DriverVar *dvar;
	
	PointerRNA driver_ptr;
	uiLayout *col;
	uiBlock *block;
	uiBut *but;
	
	/* Get settings from context */
	if (!graph_panel_context(C, &ale, &fcu))
		return;
	driver = fcu->driver;
	
	/* set event handler for panel */
	block = uiLayoutGetBlock(pa->layout); // xxx?
	uiBlockSetHandleFunc(block, do_graph_region_driver_buttons, NULL);
	
	/* general actions - management */
	col = uiLayoutColumn(pa->layout, false);
	block = uiLayoutGetBlock(col);
	but = uiDefIconTextBut(block, BUT, B_IPO_DEPCHANGE, ICON_FILE_REFRESH, IFACE_("Update Dependencies"),
	               0, 0, 10 * UI_UNIT_X, 22,
	               NULL, 0.0, 0.0, 0, 0,
	               TIP_("Force updates of dependencies"));
	uiButSetFunc(but, driver_update_flags_cb, fcu, NULL);

	but = uiDefIconTextBut(block, BUT, B_IPO_DEPCHANGE, ICON_ZOOMOUT, IFACE_("Remove Driver"),
	               0, 0, 10 * UI_UNIT_X, 18,
	               NULL, 0.0, 0.0, 0, 0,
	               TIP_("Remove this driver"));
	uiButSetNFunc(but, driver_remove_cb, MEM_dupallocN(ale), NULL);
		
	/* driver-level settings - type, expressions, and errors */
	RNA_pointer_create(ale->id, &RNA_Driver, driver, &driver_ptr);
	
	col = uiLayoutColumn(pa->layout, true);
	block = uiLayoutGetBlock(col);
	uiItemR(col, &driver_ptr, "type", 0, NULL, ICON_NONE);

	/* show expression box if doing scripted drivers, and/or error messages when invalid drivers exist */
	if (driver->type == DRIVER_TYPE_PYTHON) {
		bool bpy_data_expr_error = (strstr(driver->expression, "bpy.data.") != NULL);
		bool bpy_ctx_expr_error  = (strstr(driver->expression, "bpy.context.") != NULL);
		
		/* expression */
		uiItemR(col, &driver_ptr, "expression", 0, IFACE_("Expr"), ICON_NONE);
		
		/* errors? */
		if ((G.f & G_SCRIPT_AUTOEXEC) == 0) {
			uiItemL(col, IFACE_("ERROR: Python auto-execution disabled"), ICON_CANCEL);
		}
		else if (driver->flag & DRIVER_FLAG_INVALID) {
			uiItemL(col, IFACE_("ERROR: Invalid Python expression"), ICON_CANCEL);
		}
		
		/* Explicit bpy-references are evil. Warn about these to prevent errors */
		/* TODO: put these in a box? */
		if (bpy_data_expr_error || bpy_ctx_expr_error) {
			uiItemL(col, IFACE_("WARNING: Driver expression may not work correctly"), ICON_HELP);
			
			if (bpy_data_expr_error) {
				uiItemL(col, IFACE_("TIP: Use variables instead of bpy.data paths (see below)"), ICON_ERROR);
			}
			if (bpy_ctx_expr_error) {
				uiItemL(col, IFACE_("TIP: bpy.context is not safe for renderfarm usage"), ICON_ERROR);
			}
		}
	}
	else {
		/* errors? */
		if (driver->flag & DRIVER_FLAG_INVALID)
			uiItemL(col, IFACE_("ERROR: Invalid target channel(s)"), ICON_ERROR);
			
		/* Warnings about a lack of variables
		 * NOTE: The lack of variables is generally a bad thing, since it indicates
		 *       that the driver doesn't work at all. This particular scenario arises
		 *       primarily when users mistakenly try to use drivers for procedural
		 *       property animation
		 */
		if (BLI_listbase_is_empty(&driver->variables)) {
			uiItemL(col, IFACE_("ERROR: Driver is useless without any inputs"), ICON_ERROR);
			
			if (!BLI_listbase_is_empty(&fcu->modifiers)) {
				uiItemL(col, IFACE_("TIP: Use F-Curves for procedural animation instead"), ICON_INFO);
				uiItemL(col, IFACE_("F-Modifiers can generate curves for those too"), ICON_INFO);
			}
		}
	}
		
	col = uiLayoutColumn(pa->layout, true);
	/* debug setting */
	uiItemR(col, &driver_ptr, "show_debug_info", 0, NULL, ICON_NONE);
		
	/* value of driver */
	if (driver->flag & DRIVER_FLAG_SHOWDEBUG) {
		uiLayout *row = uiLayoutRow(col, true);
		char valBuf[32];
			
		uiItemL(row, IFACE_("Driver Value:"), ICON_NONE);
			
		BLI_snprintf(valBuf, sizeof(valBuf), "%.3f", driver->curval);
		uiItemL(row, valBuf, ICON_NONE);
	}
	
	/* add driver variables */
	col = uiLayoutColumn(pa->layout, false);
	block = uiLayoutGetBlock(col);
	but = uiDefIconTextBut(block, BUT, B_IPO_DEPCHANGE, ICON_ZOOMIN, IFACE_("Add Variable"),
	               0, 0, 10 * UI_UNIT_X, UI_UNIT_Y,
	               NULL, 0.0, 0.0, 0, 0,
	               TIP_("Driver variables ensure that all dependencies will be accounted for and that drivers will update correctly"));
	uiButSetFunc(but, driver_add_var_cb, driver, NULL);
	
	/* loop over targets, drawing them */
	for (dvar = driver->variables.first; dvar; dvar = dvar->next) {
		PointerRNA dvar_ptr;
		uiLayout *box, *row;
		
		/* sub-layout column for this variable's settings */
		col = uiLayoutColumn(pa->layout, true);
		
		/* header panel */
		box = uiLayoutBox(col);
		/* first row context info for driver */
		RNA_pointer_create(ale->id, &RNA_DriverVariable, dvar, &dvar_ptr);
		
		row = uiLayoutRow(box, false);
		block = uiLayoutGetBlock(row);
		/* variable name */
		uiItemR(row, &dvar_ptr, "name", 0, "", ICON_NONE);
		
		/* remove button */
		uiBlockSetEmboss(block, UI_EMBOSSN);
		but = uiDefIconBut(block, BUT, B_IPO_DEPCHANGE, ICON_X, 290, 0, UI_UNIT_X, UI_UNIT_Y,
		                   NULL, 0.0, 0.0, 0.0, 0.0, IFACE_("Delete target variable"));
		uiButSetFunc(but, driver_delete_var_cb, driver, dvar);
		uiBlockSetEmboss(block, UI_EMBOSS);
		
		/* variable type */
		row = uiLayoutRow(box, false);
		uiItemR(row, &dvar_ptr, "type", 0, "", ICON_NONE);
				
		/* variable type settings */
		box = uiLayoutBox(col);
		/* controls to draw depends on the type of variable */
		switch (dvar->type) {
			case DVAR_TYPE_SINGLE_PROP:     /* single property */
				graph_panel_driverVar__singleProp(box, ale->id, dvar);
				break;
			case DVAR_TYPE_ROT_DIFF:     /* rotational difference */
				graph_panel_driverVar__rotDiff(box, ale->id, dvar);
				break;
			case DVAR_TYPE_LOC_DIFF:     /* location difference */
				graph_panel_driverVar__locDiff(box, ale->id, dvar);
				break;
			case DVAR_TYPE_TRANSFORM_CHAN:     /* transform channel */
				graph_panel_driverVar__transChan(box, ale->id, dvar);
				break;
		}
		
		/* value of variable */
		if (driver->flag & DRIVER_FLAG_SHOWDEBUG) {
			char valBuf[32];
			
			box = uiLayoutBox(col);
			row = uiLayoutRow(box, true);
			uiItemL(row, IFACE_("Value:"), ICON_NONE);
			
			if ((dvar->type == DVAR_TYPE_ROT_DIFF) ||
			    (dvar->type == DVAR_TYPE_TRANSFORM_CHAN &&
			     dvar->targets[0].transChan >= DTAR_TRANSCHAN_ROTX &&
			     dvar->targets[0].transChan < DTAR_TRANSCHAN_SCALEX))
			{
				BLI_snprintf(valBuf, sizeof(valBuf), "%.3f (%4.1f°)", dvar->curval, RAD2DEGF(dvar->curval));
			}
			else {
				BLI_snprintf(valBuf, sizeof(valBuf), "%.3f", dvar->curval);
			}
			
			uiItemL(row, valBuf, ICON_NONE);
		}
	}
	
	/* cleanup */
	MEM_freeN(ale);
}