improved virtual buttons for touch devices (Android)

[rocksndiamonds.git] / src / screens.c

diff --git a/src/screens.c b/src/screens.c
index 4f7dd6f6670a41294c810cb738d26cfd09e55930..6ece1110727fd797d8743884607b9a33c298c6d7 100644 (file)
--- a/src/screens.c
+++ b/src/screens.c
@@ -383,6 +383,7 @@ static struct
 {
   {    TOUCH_CONTROL_VIRTUAL_BUTTONS,  "Virtual Buttons"       },
   {    TOUCH_CONTROL_WIPE_GESTURES,    "Wipe Gestures"         },
+  {    TOUCH_CONTROL_FOLLOW_FINGER,    "Follow Finger"         },
 
   {    NULL,                           NULL                    },
 };
@@ -1184,6 +1185,17 @@ static boolean insideTextPosRect(struct TextPosInfo *rect, int x, int y)
          y >= rect_y && y < rect_y + rect->height);
 }
 
+static boolean insidePreviewRect(struct PreviewInfo *preview, int x, int y)
+{
+  int rect_width  = preview->xsize * preview->tile_size;
+  int rect_height = preview->ysize * preview->tile_size;
+  int rect_x = ALIGNED_XPOS(preview->x, rect_width,  preview->align);
+  int rect_y = ALIGNED_YPOS(preview->y, rect_height, preview->valign);
+
+  return (x >= rect_x && x < rect_x + rect_width &&
+         y >= rect_y && y < rect_y + rect_height);
+}
+
 static void AdjustScrollbar(int id, int items_max, int items_visible,
                            int item_position)
 {
@@ -1449,9 +1461,6 @@ void DrawMainMenu()
     return;
   }
 
-  /* needed if different viewport properties defined for menues */
-  ChangeViewportPropertiesIfNeeded();
-
   if (redraw_mask & REDRAW_ALL)
     fade_mask = REDRAW_ALL;
 
@@ -1460,6 +1469,9 @@ void DrawMainMenu()
 
   FadeOut(fade_mask);
 
+  /* needed if different viewport properties defined for menues */
+  ChangeViewportPropertiesIfNeeded();
+
   SetDrawtoField(DRAW_TO_BACKBUFFER);
 
   /* level_nr may have been set to value over handicap with level editor */
@@ -1600,12 +1612,12 @@ void HandleTitleScreen(int mx, int my, int dx, int dy, int button)
 
     FadeOut(REDRAW_ALL);
 
-    /* only required to update logic for redrawing global border */
-    ClearField();
-
     /* title screens may have different window size */
     ChangeViewportPropertiesIfNeeded();
 
+    /* only required to update logic for redrawing global border */
+    ClearField();
+
     if (tci->is_image)
       DrawTitleScreenImage(tci->local_nr, tci->initial);
     else
@@ -1807,6 +1819,10 @@ void HandleMainMenu(int mx, int my, int dx, int dy, int button)
       }
     }
 
+    /* check if level preview was clicked */
+    if (insidePreviewRect(&preview, mx - SX, my - SY))
+      pos = MAIN_CONTROL_GAME;
+
     // handle pressed/unpressed state for active/inactive menu buttons
     // (if pos != -1, "i" contains index position corresponding to "pos")
     if (button &&
@@ -1851,8 +1867,6 @@ void HandleMainMenu(int mx, int my, int dx, int dy, int button)
 
     SetGameStatus(GAME_MODE_LEVELNR);
 
-    ChangeViewportPropertiesIfNeeded();
-
     DrawChooseLevelNr();
   }
   else if (pos >= MAIN_CONTROL_NAME && pos <= MAIN_CONTROL_QUIT)
@@ -1893,8 +1907,6 @@ void HandleMainMenu(int mx, int my, int dx, int dy, int button)
          if (setup.internal.choose_from_top_leveldir)
            gotoTopLevelDir();
 
-         ChangeViewportPropertiesIfNeeded();
-
          DrawChooseLevelSet();
        }
       }
@@ -1928,8 +1940,6 @@ void HandleMainMenu(int mx, int my, int dx, int dy, int button)
 
        info_mode = INFO_MODE_MAIN;
 
-       ChangeViewportPropertiesIfNeeded();
-
        DrawInfoScreen();
       }
       else if (pos == MAIN_CONTROL_GAME)
@@ -1944,8 +1954,6 @@ void HandleMainMenu(int mx, int my, int dx, int dy, int button)
 
        setup_mode = SETUP_MODE_MAIN;
 
-       ChangeViewportPropertiesIfNeeded();
-
        DrawSetupScreen();
       }
       else if (pos == MAIN_CONTROL_QUIT)
@@ -2164,8 +2172,11 @@ static void DrawInfoScreen_Main()
 
   FadeOut(fade_mask);
 
+  /* needed if different viewport properties defined for info screen */
   ChangeViewportPropertiesIfNeeded();
 
+  SetMainBackgroundImage(IMG_BACKGROUND_INFO);
+
   ClearField();
 
   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
@@ -3501,8 +3512,6 @@ void HandleInfoScreen_LevelSet(int button)
 
 static void DrawInfoScreen()
 {
-  SetMainBackgroundImage(IMG_BACKGROUND_INFO);
-
   if (info_mode == INFO_MODE_TITLE)
     DrawInfoScreen_TitleScreen();
   else if (info_mode == INFO_MODE_ELEMENTS)
@@ -3577,9 +3586,7 @@ void HandleTypeName(int newxpos, Key key)
 
     xpos = newxpos;
 
-#if defined(TARGET_SDL2)
-    SDL_StartTextInput();
-#endif
+    StartTextInput(startx, starty, pos->width, pos->height);
   }
   else if (is_valid_key_char && xpos < MAX_PLAYER_NAME_LEN)
   {
@@ -3626,9 +3633,7 @@ void HandleTypeName(int newxpos, Key key)
 
     DrawText(startx, starty, setup.player_name, font_nr);
 
-#if defined(TARGET_SDL2)
-    SDL_StopTextInput();
-#endif
+    StopTextInput();
   }
 }
 
@@ -3660,6 +3665,14 @@ static void DrawChooseTree(TreeInfo **ti_ptr)
 
   FadeOut(fade_mask);
 
+  /* needed if different viewport properties defined for choosing level (set) */
+  ChangeViewportPropertiesIfNeeded();
+
+  if (game_status == GAME_MODE_LEVELNR)
+    SetMainBackgroundImage(IMG_BACKGROUND_LEVELNR);
+  else if (game_status == GAME_MODE_LEVELS)
+    SetMainBackgroundImage(IMG_BACKGROUND_LEVELS);
+
   ClearField();
 
   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
@@ -4054,8 +4067,6 @@ void DrawChooseLevelSet()
 {
   FadeSoundsAndMusic();
 
-  SetMainBackgroundImage(IMG_BACKGROUND_LEVELS);
-
   DrawChooseTree(&leveldir_current);
 
   PlayMenuSound();
@@ -4117,8 +4128,6 @@ void DrawChooseLevelNr()
   if (level_number_current == NULL)
     level_number_current = level_number;
 
-  SetMainBackgroundImage(IMG_BACKGROUND_LEVELNR);
-
   DrawChooseTree(&level_number_current);
 
   PlayMenuSound();
@@ -4134,9 +4143,6 @@ void DrawHallOfFame(int highlight_position)
 {
   int fade_mask = REDRAW_FIELD;
 
-  /* needed if different viewport properties defined for scores */
-  ChangeViewportPropertiesIfNeeded();
-
   if (CheckIfGlobalBorderHasChanged())
     fade_mask = REDRAW_ALL;
 
@@ -4158,6 +4164,9 @@ void DrawHallOfFame(int highlight_position)
 
   FadeOut(fade_mask);
 
+  /* needed if different viewport properties defined for scores */
+  ChangeViewportPropertiesIfNeeded();
+
   PlayMenuSound();
   PlayMenuMusic();
 
@@ -4189,9 +4198,10 @@ static void drawHallOfFameList(int first_entry, int highlight_position)
     int font_nr2 = (active ? FONT_TEXT_2_ACTIVE : FONT_TEXT_2);
     int font_nr3 = (active ? FONT_TEXT_3_ACTIVE : FONT_TEXT_3);
     int font_nr4 = (active ? FONT_TEXT_4_ACTIVE : FONT_TEXT_4);
+    int dxoff = getFontDrawOffsetX(font_nr1);
     int dx1 = 3 * getFontWidth(font_nr1);
     int dx2 = dx1 + getFontWidth(font_nr1);
-    int dx3 = SXSIZE - 2 * (mSX - SX) - 5 * getFontWidth(font_nr4);
+    int dx3 = SXSIZE - 2 * (mSX - SX + dxoff) - 5 * getFontWidth(font_nr4);
     int num_dots = (dx3 - dx2) / getFontWidth(font_nr3);
     int sy = mSY + 64 + i * 32;
 
@@ -5416,6 +5426,16 @@ static struct TokenInfo setup_info_input[] =
 };
 
 static struct TokenInfo setup_info_touch[] =
+{
+  { TYPE_ENTER_LIST,   execSetupChooseTouchControls, "Touch Control Type:" },
+  { TYPE_STRING,       &touch_controls_text,   ""                      },
+  { TYPE_EMPTY,                NULL,                   ""                      },
+  { TYPE_LEAVE_MENU,   execSetupMain,          "Back"                  },
+
+  { 0,                 NULL,                   NULL                    }
+};
+
+static struct TokenInfo setup_info_touch_wipe_gestures[] =
 {
   { TYPE_ENTER_LIST,   execSetupChooseTouchControls, "Touch Control Type:" },
   { TYPE_STRING,       &touch_controls_text,   ""                      },
@@ -5772,6 +5792,11 @@ static void DrawSetupScreen_Generic()
 
   FadeOut(fade_mask);
 
+  /* needed if different viewport properties defined for setup screen */
+  ChangeViewportPropertiesIfNeeded();
+
+  SetMainBackgroundImage(IMG_BACKGROUND_SETUP);
+
   ClearField();
 
   OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
@@ -5810,6 +5835,9 @@ static void DrawSetupScreen_Generic()
   {
     setup_info = setup_info_touch;
     title_string = "Setup Touch Ctrls";
+
+    if (strEqual(setup.touch.control_type, TOUCH_CONTROL_WIPE_GESTURES))
+      setup_info = setup_info_touch_wipe_gestures;
   }
   else if (setup_mode == SETUP_MODE_SHORTCUTS)
   {
@@ -6476,8 +6504,6 @@ void DrawSetupScreen()
 {
   DeactivateJoystick();
 
-  SetMainBackgroundImage(IMG_BACKGROUND_SETUP);
-
   if (setup_mode == SETUP_MODE_INPUT)
     DrawSetupScreen_Input();
   else if (setup_mode == SETUP_MODE_CHOOSE_GAME_SPEED)