Makes button names symbolic for easier overriding

This puts platform-specific overrides in a central location and makes
button references easier to understand.

3 files changed, 105 insertions, 48 deletions

diff --git a/shell/menu/buttons.h b/shell/menu/buttons.h
new file mode 100644
index 0000000..6be3f18
--- /dev/null
+++ b/shell/menu/buttons.h
@@ -0,0 +1,31 @@
+#ifndef BUTTONS_H
+#define BUTTONS_H
+
+#ifdef TRIMUI
+#include "buttons_trimui.h"
+#else
+
+#include <SDL/SDL.h>
+
+#define BTN_UP         SDLK_UP
+#define BTN_RIGHT      SDLK_RIGHT
+#define BTN_DOWN       SDLK_DOWN
+#define BTN_LEFT       SDLK_LEFT
+#define BTN_A          SDLK_LCTRL
+#define BTN_B          SDLK_LALT
+#define BTN_X          SDLK_LSHIFT
+#define BTN_Y          SDLK_SPACE
+#define BTN_L          SDLK_TAB
+#define BTN_R          SDLK_BACKSPACE
+#define BTN_START      SDLK_RETURN
+#define BTN_SELECT     SDLK_ESCAPE
+#define BTN_MENU       SDLK_RCTRL
+
+#define BTN_L2         SDLK_END
+#define BTN_R2         SDLK_3
+#define BTN_VOLUMEUP   SDLK_AMPERSAND
+#define BTN_VOLUMEDOWN SDLK_WORLD_73
+#define BTN_HOME       SDLK_HOME
+#endif
+
+#endif // BUTTONS_H
diff --git a/shell/menu/buttons_trimui.h b/shell/menu/buttons_trimui.h
new file mode 100644
index 0000000..36b548d
--- /dev/null
+++ b/shell/menu/buttons_trimui.h
@@ -0,0 +1,25 @@
+#ifndef BUTTONS_TRIMUI_H
+#define BUTTONS_TRIMUI_H
+#include <SDL/SDL.h>
+
+#define BTN_UP         SDLK_UP
+#define BTN_RIGHT      SDLK_RIGHT
+#define BTN_DOWN       SDLK_DOWN
+#define BTN_LEFT       SDLK_LEFT
+#define BTN_A          SDLK_SPACE
+#define BTN_B          SDLK_LCTRL
+#define BTN_X          SDLK_LSHIFT
+#define BTN_Y          SDLK_LALT
+#define BTN_L          SDLK_TAB
+#define BTN_R          SDLK_BACKSPACE
+#define BTN_START      SDLK_RETURN
+#define BTN_SELECT     SDLK_RCTRL
+#define BTN_MENU       SDLK_ESCAPE
+
+#define BTN_L2         SDLK_END
+#define BTN_R2         SDLK_3
+#define BTN_VOLUMEUP   SDLK_AMPERSAND
+#define BTN_VOLUMEDOWN SDLK_WORLD_73
+#define BTN_HOME       SDLK_HOME
+
+#endif // BUTTONS_TRIMUI_H
diff --git a/shell/menu/menu.c b/shell/menu/menu.c
index 2ea1636..1de8a15 100644
--- a/shell/menu/menu.c
+++ b/shell/menu/menu.c
@@ -14,6 +14,7 @@
 #include "video_blit.h"
 #include "config.h"
 #include "menu.h"
+#include "buttons.h"
 
 t_config option;
 uint32_t emulator_state = 0;
@@ -76,21 +77,21 @@ static void config_load()
 	else
 	{
 		/* Default mapping for Horizontal */
-		option.config_buttons[0][0] = SDLK_UP; // UP
-		option.config_buttons[0][1] = SDLK_RIGHT; // RIGHT
-		option.config_buttons[0][2] = SDLK_DOWN; // DOWN
-		option.config_buttons[0][3] = SDLK_LEFT; // LEFT
+		option.config_buttons[0][0] = BTN_UP;
+		option.config_buttons[0][1] = BTN_RIGHT;
+		option.config_buttons[0][2] = BTN_DOWN;
+		option.config_buttons[0][3] = BTN_LEFT;
 
-		option.config_buttons[0][4] = SDLK_SPACE; // A
-		option.config_buttons[0][5] = SDLK_LCTRL; // B
-		option.config_buttons[0][6] = SDLK_LSHIFT; // X
-		option.config_buttons[0][7] = SDLK_LALT; // Y
+		option.config_buttons[0][4] = BTN_A;
+		option.config_buttons[0][5] = BTN_B;
+		option.config_buttons[0][6] = BTN_X;
+		option.config_buttons[0][7] = BTN_Y;
 
-		option.config_buttons[0][8] = SDLK_TAB; // L
-		option.config_buttons[0][9] = SDLK_BACKSPACE; // R
+		option.config_buttons[0][8] = BTN_L;
+		option.config_buttons[0][9] = BTN_R;
 
-		option.config_buttons[0][10] = SDLK_RETURN; // START
-		option.config_buttons[0][11] = SDLK_RCTRL; // SELECT
+		option.config_buttons[0][10] = BTN_START;
+		option.config_buttons[0][11] = BTN_SELECT;
 
 		option.fullscreen = 1;
 	}
@@ -115,67 +116,67 @@ static const char* Return_Text_Button(uint32_t button)
 	switch(button)
 	{
 		/* UP button */
-		case SDLK_UP:
+		case BTN_UP:
 			return "DPAD UP";
 		break;
 		/* DOWN button */
-		case SDLK_DOWN:
+		case BTN_DOWN:
 			return "DPAD DOWN";
 		break;
 		/* LEFT button */
-		case SDLK_LEFT:
+		case BTN_LEFT:
 			return "DPAD LEFT";
 		break;
 		/* RIGHT button */
-		case SDLK_RIGHT:
+		case BTN_RIGHT:
 			return "DPAD RIGHT";
 		break;
 		/* A button */
-		case SDLK_SPACE:
+		case BTN_A:
 			return "A";
 		break;
 		/* B button */
-		case SDLK_LCTRL:
+		case BTN_B:
 			return "B";
 		break;
 		/* X button */
-		case SDLK_LSHIFT:
+		case BTN_X:
 			return "X";
 		break;
 		/* Y button */
-		case SDLK_LALT:
+		case BTN_Y:
 			return "Y";
 		break;
 		/* L button */
-		case SDLK_TAB:
+		case BTN_L:
 			return "L";
 		break;
 		/* R button */
-		case SDLK_BACKSPACE:
+		case BTN_R:
 			return "R";
 		break;
 		/* Power button */
-		case SDLK_END:
+		case BTN_L2:
 			return "L2";
 		break;
 		/* Brightness */
-		case SDLK_3:
+		case BTN_R2:
 			return "R2";
 		break;
 		/* Volume - */
-		case SDLK_AMPERSAND:
+		case BTN_VOLUMEUP:
 			return "Volume -";
 		break;
 		/* Volume + */
-		case SDLK_WORLD_73:
+		case BTN_VOLUMEDOWN:
 			return "Volume +";
 		break;
 		/* Start */
-		case SDLK_RETURN:
+		case BTN_START:
 			return "Start";
 		break;
 		/* Select */
-		case SDLK_RCTRL:
+		case BTN_SELECT:
 			return "Select";
 		break;
 		default:
@@ -207,7 +208,7 @@ static void Input_Remapping()
             {
                 switch(Event.key.keysym.sym)
                 {
-                    case SDLK_UP:
+                    case BTN_UP:
                         currentselection--;
                         if (currentselection < 1)
                         {
@@ -215,33 +216,33 @@ static void Input_Remapping()
 							else currentselection = 9;
 						}
                         break;
-                    case SDLK_DOWN:
+                    case BTN_DOWN:
                         currentselection++;
                         if (currentselection == 10)
                         {
 							currentselection = 1;
 						}
                         break;
-                    case SDLK_SPACE:
-                    case SDLK_RETURN:
+                    case BTN_A:
+                    case BTN_START:
                         pressed = 1;
 					break;
-                    case SDLK_ESCAPE:
+                    case BTN_MENU:
                         option.config_buttons[controls_chosen][currentselection - 1] = 0;
 					break;
-                    case SDLK_LCTRL:
+                    case BTN_B:
                         exit_input = 1;
 					break;
-                    case SDLK_LEFT:
+                    case BTN_LEFT:
 						if (currentselection > 9) currentselection -= 9;
 					break;
-                    case SDLK_RIGHT:
+                    case BTN_RIGHT:
 						if (currentselection < 10) currentselection += 9;
 					break;
-                    case SDLK_BACKSPACE:
+                    case BTN_R:
 						controls_chosen = 1;
 					break;
-                    case SDLK_TAB:
+                    case BTN_L:
 						controls_chosen = 0;
 					break;
 					default:
@@ -265,7 +266,7 @@ static void Input_Remapping()
 						{
 							if (Event.type == SDL_KEYDOWN)
 							{
-								if (Event.key.keysym.sym != SDLK_ESCAPE)
+								if (Event.key.keysym.sym != BTN_MENU)
 								{
 									option.config_buttons[controls_chosen][currentselection - 1] = Event.key.keysym.sym;
 									exit_map = 1;
@@ -427,27 +428,27 @@ void Menu()
             {
                 switch(Event.key.keysym.sym)
                 {
-                    case SDLK_UP:
+                    case BTN_UP:
                         currentselection--;
                         if (currentselection == 0)
                             currentselection = 6;
                         break;
-                    case SDLK_DOWN:
+                    case BTN_DOWN:
                         currentselection++;
                         if (currentselection == 7)
                             currentselection = 1;
                         break;
-                    case SDLK_END:
-                    case SDLK_RCTRL:
-                    case SDLK_LCTRL:
+                    case BTN_L2:
+                    case BTN_SELECT:
+                    case BTN_B:
 						pressed = 1;
 						currentselection = 1;
 						break;
-                    case SDLK_SPACE:
-                    case SDLK_RETURN:
+                    case BTN_A:
+                    case BTN_START:
                         pressed = 1;
                         break;
-                    case SDLK_LEFT:
+                    case BTN_LEFT:
                         switch(currentselection)
                         {
                             case 2:
@@ -461,7 +462,7 @@ void Menu()
 							break;
                         }
                         break;
-                    case SDLK_RIGHT:
+                    case BTN_RIGHT:
                         switch(currentselection)
                         {
                             case 2: