* Added support for displaying disabled RNA buttons

The functionality already existed via the RNA system, this
commit makes disabled buttons draw greyed out, and not respond to clicks
(previously, they would drag/edit/etc but then reset to the previous value)

3 files changed, 67 insertions, 53 deletions

diff --git a/source/blender/editors/include/UI_interface.h b/source/blender/editors/include/UI_interface.h
index 5c664a1e768..3d941f0eb82 100644
--- a/source/blender/editors/include/UI_interface.h
+++ b/source/blender/editors/include/UI_interface.h
@@ -115,7 +115,7 @@ struct ReportList;
 #define UI_BUT_ALIGN_LEFT	(1<<13)
 #define UI_BUT_ALIGN_RIGHT	(1<<14)
 #define UI_BUT_ALIGN_DOWN	(1<<15)
-
+#define UI_BUT_DISABLED		(1<<16)
 
 /* Button types, bits stored in 1 value... and a short even!
 - bits 0-4:  bitnr (0-31)
diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index bfe39c41a0a..941528169c3 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -2118,6 +2118,12 @@ uiBut *ui_def_but_rna(uiBlock *block, int type, int retval, char *str, short x1,
 	but->rnapoin= *ptr;
 	but->rnaprop= prop;
 	but->rnaindex= index;
+	
+	if (!RNA_property_editable(&but->rnapoin, prop)) {
+		but->flag |= UI_BUT_DISABLED;
+		but->lock = 1;
+		but->lockstr = "";
+	}
 
 	if(freestr)
 		MEM_freeN(str);
diff --git a/source/blender/editors/interface/interface_draw.c b/source/blender/editors/interface/interface_draw.c
index 0742080e9fd..7da4dcf8e21 100644
--- a/source/blender/editors/interface/interface_draw.c
+++ b/source/blender/editors/interface/interface_draw.c
@@ -58,6 +58,8 @@
 #include "interface_intern.h"
 
 #define UI_RB_ALPHA 16
+#define UI_DISABLED_ALPHA_OFFS	-160
+
 static int roundboxtype= 15;
 
 void uiSetRoundBox(int type)
@@ -485,13 +487,14 @@ void uiRoundBox(float minx, float miny, float maxx, float maxy, float rad)
 
 void uiTriangleFakeAA(float x1, float y1, float x2, float y2, float x3, float y3, float asp)
 {
-	float color[4];
+	float color[4], alpha;
 	float jitter;
 	int i, passes=4;
 	
 	/* get the colour and divide up the alpha */
 	glGetFloatv(GL_CURRENT_COLOR, color);
-	color[3]= 1.0/(float)passes;
+	alpha = color[3];
+	color[3]= alpha/(float)passes;
 	glColor4fv(color);
 	
 	/* set the 'jitter amount' */
@@ -511,6 +514,9 @@ void uiTriangleFakeAA(float x1, float y1, float x2, float y2, float x3, float y3
 	}
 	
 	glDisable( GL_BLEND );
+	
+	color[3] = alpha;
+	glColor4fv(color);
 }
 
 /* for headers and floating panels */
@@ -1116,6 +1122,7 @@ static void ui_roundshaded_button(int type, int colorid, float asp, float x1, fl
 {
 	float rad, maxrad;
 	int align= (flag & UI_BUT_ALIGN);
+	int alpha_offs= (flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
 	
 	/* rounded corners */
 	if (ELEM4(type, MENU, ROW, ICONROW, ICONTEXTROW)) maxrad = 5.0;
@@ -1176,9 +1183,9 @@ static void ui_roundshaded_button(int type, int colorid, float asp, float x1, fl
 		case ICONTEXTROW:			
 			/* iconrow double arrow  */
 			if(flag & UI_SELECT) {
-				UI_ThemeColorShade(colorid, -80);
+				UI_ThemeColorShadeAlpha(colorid, -80, alpha_offs);
 			} else {
-				UI_ThemeColorShade(colorid, -45);
+				UI_ThemeColorShadeAlpha(colorid, -45, alpha_offs);
 			}
 				ui_iconrow_arrows(x1, y1, x2, y2);
 			/* end iconrow double arrow */
@@ -1186,9 +1193,9 @@ static void ui_roundshaded_button(int type, int colorid, float asp, float x1, fl
 		case MENU:
 			/* menu double arrow  */
 			if(flag & UI_SELECT) {
-				UI_ThemeColorShade(colorid, -110);
+				UI_ThemeColorShadeAlpha(colorid, -110, alpha_offs);
 			} else {
-				UI_ThemeColorShade(colorid, -80);
+				UI_ThemeColorShadeAlpha(colorid, -80, alpha_offs);
 			}
 			ui_menu_arrows(x1, y1, x2, y2, asp);
 			/* end menu double arrow */
@@ -1200,6 +1207,7 @@ static void ui_roundshaded_flat(int type, int colorid, float asp, float x1, floa
 {
 	float rad, maxrad=10.0;
 	int align= (flag & UI_BUT_ALIGN);
+	int alpha_offs= (flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
 	
 	/* rounded corners */
 	rad= (y2-y1)/2.0;
@@ -1261,11 +1269,11 @@ static void ui_roundshaded_flat(int type, int colorid, float asp, float x1, floa
 		case NUM:
 			/* side arrows */
 			if(flag & UI_SELECT) {
-				if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, -70);
-				else UI_ThemeColorShade(colorid, -70);
+				if(flag & UI_ACTIVE) UI_ThemeColorShadeAlpha(colorid, -70, alpha_offs);
+				else UI_ThemeColorShadeAlpha(colorid, -70, alpha_offs);
 			} else {
-				if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, -40);
-				else UI_ThemeColorShade(colorid, -20);
+				if(flag & UI_ACTIVE) UI_ThemeColorShadeAlpha(colorid, -40, alpha_offs);
+				else UI_ThemeColorShadeAlpha(colorid, -20, alpha_offs);
 			}
 			
 			ui_num_arrows(x1, y1, x2, y2, asp);
@@ -1303,6 +1311,7 @@ static void ui_draw_roundshaded(int type, int colorid, float aspect, float x1, f
 static void ui_default_button(int type, int colorid, float asp, float x1, float y1, float x2, float y2, int flag)
 {
 	int align= (flag & UI_BUT_ALIGN);
+	int alpha_offs= (flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
 
 	if(align) {
 	
@@ -1455,7 +1464,7 @@ static void ui_default_button(int type, int colorid, float asp, float x1, float
 		/* END DARKENED AREA */
 	
 		/* ICONROW DOUBLE-ARROW  */
-		M_DARK;
+		UI_ThemeColorShadeAlpha(colorid, -80, alpha_offs);
 		ui_iconrow_arrows(x1, y1, x2, y2);
 		/* END ICONROW DOUBLE-ARROW */
 		break;
@@ -1470,7 +1479,7 @@ static void ui_default_button(int type, int colorid, float asp, float x1, float
 		/* END DARKENED AREA */
 	
 		/* MENU DOUBLE-ARROW  */
-		M_DARK;
+		UI_ThemeColorShadeAlpha(colorid, -80, alpha_offs);
 		ui_menu_arrows(x1, y1, x2, y2, asp);
 		/* MENU DOUBLE-ARROW */
 		break;
@@ -1481,6 +1490,7 @@ static void ui_default_button(int type, int colorid, float asp, float x1, float
 static void ui_default_flat(int type, int colorid, float asp, float x1, float y1, float x2, float y2, int flag)
 {
 	int align= (flag & UI_BUT_ALIGN);
+	int alpha_offs= (flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
 
 	if(align) {
 	
@@ -1627,11 +1637,11 @@ static void ui_default_flat(int type, int colorid, float asp, float x1, float y1
 		/* SIDE ARROWS */
 		/* left */
 		if(flag & UI_SELECT) {
-			if(flag & UI_ACTIVE) M_DARK;
-			else M_DARK;
+			if(flag & UI_ACTIVE) UI_ThemeColorShadeAlpha(colorid, -80, alpha_offs);
+			else UI_ThemeColorShadeAlpha(colorid, -80, alpha_offs);
 		} else {
-			if(flag & UI_ACTIVE) M_GREY;
-			else M_LGREY;
+			if(flag & UI_ACTIVE) UI_ThemeColorShadeAlpha(colorid, -45, alpha_offs);
+			else UI_ThemeColorShadeAlpha(colorid, -20, alpha_offs);
 		}
 		
 		ui_num_arrows(x1, y1, x2, y2, asp);
@@ -1767,6 +1777,7 @@ static void ui_draw_outlineX(float x1, float y1, float x2, float y2, float asp1)
 
 static void ui_draw_oldskool(int type, int colorid, float asp, float x1, float y1, float x2, float y2, int flag)
 {
+	int alpha_offs= (flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
  	/* paper */
 	if(flag & UI_SELECT) {
 		if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, -40);
@@ -1809,27 +1820,27 @@ static void ui_draw_oldskool(int type, int colorid, float asp, float x1, float y
 	switch(type) {
 	case NUM:
 	case NUMABS:
-		if(flag & UI_SELECT) UI_ThemeColorShade(colorid, -60);
-		else UI_ThemeColorShade(colorid, -30);
+		if(flag & UI_SELECT) UI_ThemeColorShadeAlpha(colorid, -60, alpha_offs);
+		else UI_ThemeColorShadeAlpha(colorid, -30, alpha_offs);
 		ui_num_arrows(x1, y1, x2, y2, asp);
 		break;
 
 	case ICONROW: 
 	case ICONTEXTROW: 
-		if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, 0);
-		else UI_ThemeColorShade(colorid, -10);
+		if(flag & UI_ACTIVE) UI_ThemeColorShadeAlpha(colorid, 0, alpha_offs);
+		else UI_ThemeColorShadeAlpha(colorid, -10, alpha_offs);
 		glRectf(x2-9, y1+asp, x2-asp, y2-asp);
 
-		UI_ThemeColorShade(colorid, -50);
+		UI_ThemeColorShadeAlpha(colorid, -50, alpha_offs);
 		ui_iconrow_arrows(x1, y1, x2, y2);
 		break;
 		
 	case MENU: 
-		if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, 0);
-		else UI_ThemeColorShade(colorid, -10);
+		if(flag & UI_ACTIVE) UI_ThemeColorShadeAlpha(colorid, 0, alpha_offs);
+		else UI_ThemeColorShadeAlpha(colorid, -10, alpha_offs);
 		glRectf(x2-17, y1+asp, x2-asp, y2-asp);
 
-		UI_ThemeColorShade(colorid, -50);
+		UI_ThemeColorShadeAlpha(colorid, -50, alpha_offs);
 		ui_menu_arrows(x1, y1, x2, y2, asp);
 		break;
 	}
@@ -1840,6 +1851,7 @@ static void ui_draw_round(int type, int colorid, float asp, float x1, float y1,
 {
 	float rad, maxrad=7.0;
 	int align= (flag & UI_BUT_ALIGN), curshade;
+	int alpha_offs= (flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
 	
 	/* rounded corners */
 	rad= (y2-y1)/2.0;
@@ -1912,19 +1924,19 @@ static void ui_draw_round(int type, int colorid, float asp, float x1, float y1,
 		break;
 	case NUM:
 	case NUMABS:
-		UI_ThemeColorShade(colorid, curshade-60);
+		UI_ThemeColorShadeAlpha(colorid, curshade-60, alpha_offs);
 		ui_num_arrows(x1, y1, x2, y2, asp);
 		break;
 
 	case ICONROW: 
 	case ICONTEXTROW: 
-		UI_ThemeColorShade(colorid, curshade-60);
+		UI_ThemeColorShadeAlpha(colorid, curshade-60, alpha_offs);
 		ui_iconrow_arrows(x1, y1, x2, y2);
 		break;
 		
 	case MENU: 
 	case BLOCK: 
-		UI_ThemeColorShade(colorid, curshade-60);
+		UI_ThemeColorShadeAlpha(colorid, curshade-60, alpha_offs);
 		ui_menu_arrows(x1, y1, x2, y2, asp);
 		break;
 	}
@@ -1939,6 +1951,8 @@ static void ui_draw_round(int type, int colorid, float asp, float x1, float y1,
 /* super minimal button as used in logic menu */
 static void ui_draw_minimal(int type, int colorid, float asp, float x1, float y1, float x2, float y2, int flag)
 {
+	int alpha_offs= (flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
+	
 	/* too much space between buttons */
 	
 	if (type==TEX || type==IDPOIN) {
@@ -2022,28 +2036,28 @@ static void ui_draw_minimal(int type, int colorid, float asp, float x1, float y1
 	switch(type) {
 	case NUM:
 	case NUMABS:
-		if(flag & UI_SELECT) UI_ThemeColorShade(colorid, -60);
-		else UI_ThemeColorShade(colorid, -30);
+		if(flag & UI_SELECT) UI_ThemeColorShadeAlpha(colorid, -60, alpha_offs);
+		else UI_ThemeColorShadeAlpha(colorid, -30, alpha_offs);
 		ui_num_arrows(x1, y1, x2, y2, asp);
 		break;
 
 	case ICONROW: 
 	case ICONTEXTROW: 
-		if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, 0);
-		else UI_ThemeColorShade(colorid, -10);
+		if(flag & UI_ACTIVE) UI_ThemeColorShadeAlpha(colorid, 0, alpha_offs);
+		else UI_ThemeColorShadeAlpha(colorid, -10, alpha_offs);
 		glRectf(x2-9, y1+asp, x2-asp, y2-asp);
 
-		UI_ThemeColorShade(colorid, -50);
+		UI_ThemeColorShadeAlpha(colorid, -50, alpha_offs);
 		ui_iconrow_arrows(x1, y1, x2, y2);
 		break;
 		
 	case MENU: 
 	case BLOCK: 
-		if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, 0);
-		else UI_ThemeColorShade(colorid, -10);
+		if(flag & UI_ACTIVE) UI_ThemeColorShadeAlpha(colorid, 0, alpha_offs);
+		else UI_ThemeColorShadeAlpha(colorid, -10, alpha_offs);
 		glRectf(x2-17, y1+asp, x2-asp, y2-asp);
 
-		UI_ThemeColorShade(colorid, -50);
+		UI_ThemeColorShadeAlpha(colorid, -50, alpha_offs);
 		ui_menu_arrows(x1, y1, x2, y2, asp);
 		break;
 	}
@@ -2228,6 +2242,7 @@ static void ui_draw_text_icon(uiBut *but)
 	char *cpoin;
 	short t, pos, ch;
 	short selsta_tmp, selend_tmp, selsta_draw, selwidth_draw;
+	int alpha_offs= (but->flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
 	
 	/* check for button text label */
 	if (but->type == ICONTEXTROW) {
@@ -2339,16 +2354,16 @@ static void ui_draw_text_icon(uiBut *but)
 			if(tog3);	// color already set
 			else if(but->dt==UI_EMBOSSP) {
 				if((but->flag & (UI_SELECT|UI_ACTIVE)) && but->type!=LABEL) {	// LABEL = title in pulldowns
-					UI_ThemeColor(TH_MENU_TEXT_HI);
+					UI_ThemeColorShadeAlpha(TH_MENU_TEXT_HI, 0, alpha_offs);
 				} else {
-					UI_ThemeColor(TH_MENU_TEXT);
+					UI_ThemeColorShadeAlpha(TH_MENU_TEXT, 0, alpha_offs);
 				}
 			}
 			else {
 				if(but->flag & UI_SELECT) {		
-					UI_ThemeColor(TH_BUT_TEXT_HI);
+					UI_ThemeColorShadeAlpha(TH_BUT_TEXT_HI, 0, alpha_offs);
 				} else {
-					UI_ThemeColor(TH_BUT_TEXT);
+					UI_ThemeColorShadeAlpha(TH_BUT_TEXT, 0, alpha_offs);
 				}
 			}
 
@@ -3127,6 +3142,7 @@ static void ui_draw_nothing(int type, int colorid, float asp, float x1, float y1
 static void ui_draw_table(int type, int colorid, float asp, float x1, float y1, float x2, float y2, int flag)
 {
 	int background= 1;
+	int alpha_offs= (flag & UI_BUT_DISABLED)?UI_DISABLED_ALPHA_OFFS:0;
 
 	/* paper */
 	if(flag & UI_SELECT) {
@@ -3148,8 +3164,8 @@ static void ui_draw_table(int type, int colorid, float asp, float x1, float y1,
 	switch(type) {
 	case NUM:
 	case NUMABS:
-		if(flag & UI_SELECT) UI_ThemeColorShade(colorid, -120);
-		else UI_ThemeColorShade(colorid, -90);
+		if(flag & UI_SELECT) UI_ThemeColorShadeAlpha(colorid, -120, alpha_offs);
+		else UI_ThemeColorShadeAlpha(colorid, -90, alpha_offs);
 		ui_num_arrows(x1, y1, x2, y2, asp);
 		break;
 
@@ -3157,28 +3173,20 @@ static void ui_draw_table(int type, int colorid, float asp, float x1, float y1,
 		ui_checkmark_box(colorid, x1, y1, x2, y2);
 		
 		if(flag & UI_SELECT) {
-			UI_ThemeColorShade(colorid, -140);
+			UI_ThemeColorShadeAlpha(colorid, -140, alpha_offs);
 			ui_checkmark(x1, y1, x2, y2);
 		}
 		break;
 		
 	case ICONROW: 
 	case ICONTEXTROW: 
-		if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, 0);
-		else UI_ThemeColorShade(colorid, -10);
-		glRectf(x2-9, y1+asp, x2-asp, y2-asp);
-
-		UI_ThemeColorShade(colorid, -50);
+		UI_ThemeColorShadeAlpha(colorid, -120, alpha_offs);
 		ui_iconrow_arrows(x1, y1, x2, y2);
 		break;
 		
 	case MENU: 
 	case BLOCK: 
-		if(flag & UI_ACTIVE) UI_ThemeColorShade(colorid, 0);
-		else UI_ThemeColorShade(colorid, -10);
-		glRectf(x2-17, y1+asp, x2-asp, y2-asp);
-
-		UI_ThemeColorShade(colorid, -50);
+		UI_ThemeColorShadeAlpha(colorid, -120, alpha_offs);
 		ui_menu_arrows(x1, y1, x2, y2, asp);
 		break;
 	}