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SDL2, win32: properly handle negative mouse coordinates

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This commit is contained in:
Thomas Bernard
2019-02-04 18:37:35 +01:00
parent 206c67e77c
commit 4c7c5bde77
3 changed files with 70 additions and 46 deletions
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79
src/input.c
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@@ -67,12 +67,6 @@ extern Window X11_window;
// generic defaults like "Right Amiga+Q = Quit".
// In case this is annoying for some platforms, disable it.
#if defined(USE_SDL)
void Handle_window_resize(SDL_ResizeEvent event);
#endif
#if defined(USE_SDL) || defined(USE_SDL2)
void Handle_window_exit(SDL_QuitEvent event);
#endif
static int Color_cycling(void);
// public Globals (available as extern)
@@ -228,12 +222,12 @@ int Is_shortcut(word key, word function)
return 0;
}
// Called each time there is a cursor move, either triggered by mouse or keyboard shortcuts
int Move_cursor_with_constraints()
/// Called each time there is a cursor move, either triggered by mouse or keyboard shortcuts
/// @param mouse_blocked Boolean, Set to true if mouse movement was clipped.
/// @return feedback
int Move_cursor_with_constraints(int mouse_blocked)
{
int feedback=0;
int mouse_blocked=0; ///< Boolean, Set to true if mouse movement was clipped.
int feedback = 0;
// Clip mouse to the editing area. There can be a border when using big
// pixels, if the SDL screen dimensions are not factors of the pixel size.
@@ -251,7 +245,6 @@ int Move_cursor_with_constraints()
//menu lorsqu'on est en train de travailler dans l'image
if (Operation_stack_size != 0)
{
//Si le curseur ne se trouve plus dans l'image
if(Menu_Y<=Input_new_mouse_Y)
@@ -281,6 +274,7 @@ int Move_cursor_with_constraints()
}
}
}
if ((Input_new_mouse_X != Mouse_X) ||
(Input_new_mouse_Y != Mouse_Y) ||
(Input_new_mouse_K != Mouse_K))
@@ -620,10 +614,24 @@ void Handle_window_exit(SDL_QuitEvent event)
int Handle_mouse_move(SDL_MouseMotionEvent event)
{
Input_new_mouse_X = event.x/Pixel_width;
Input_new_mouse_Y = event.y/Pixel_height;
int mouse_blocked = 0;
//GFX2_Log(GFX2_DEBUG, "mouse motion (%+d,%+d)\n", event->xrel, event->yrel);
if (event->x < 0)
{
mouse_blocked = 1;
Input_new_mouse_X = 0;
}
else
Input_new_mouse_X = event->x / Pixel_width;
if (event->y < 0)
{
mouse_blocked = 1;
Input_new_mouse_Y = 0;
}
else
Input_new_mouse_Y = event->y / Pixel_height;
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(mouse_blocked);
}
int Handle_mouse_click(SDL_MouseButtonEvent event)
@@ -664,7 +672,7 @@ int Handle_mouse_click(SDL_MouseButtonEvent event)
default:
return 0;
}
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
int Handle_mouse_release(SDL_MouseButtonEvent event)
@@ -686,7 +694,7 @@ int Handle_mouse_release(SDL_MouseButtonEvent event)
break;
}
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
#endif
@@ -721,13 +729,13 @@ int Handle_special_key_press(void)
{
Input_new_mouse_K=1;
Directional_click=1;
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
else if(Is_shortcut(Key,SPECIAL_CLICK_RIGHT) && Keyboard_click_allowed > 0)
{
Input_new_mouse_K=2;
Directional_click=2;
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
else if(Is_shortcut(Key,SPECIAL_HOLD_PAN))
{
@@ -787,7 +795,7 @@ static int Handle_key_press(SDL_KeyboardEvent event)
if (Input_new_mouse_K)
{
Input_new_mouse_K ^= 3; // Flip bits 0 and 1
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
}
#ifdef RSUPER_EMULATES_META_MOD
@@ -818,7 +826,7 @@ int Release_control(int key_code, int modifier)
if (Input_new_mouse_K)
{
Input_new_mouse_K ^= 3; // Flip bits 0 and 1
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
}
@@ -849,7 +857,7 @@ int Release_control(int key_code, int modifier)
{
Directional_click &= ~1;
Input_new_mouse_K &= ~1;
return Move_cursor_with_constraints() || need_feedback;
return Move_cursor_with_constraints(0) || need_feedback;
}
}
if((key_code && key_code == (Config_Key[SPECIAL_CLICK_RIGHT][0]&0x0FFF)) || (Config_Key[SPECIAL_CLICK_RIGHT][0]&modifier) ||
@@ -859,7 +867,7 @@ int Release_control(int key_code, int modifier)
{
Directional_click &= ~2;
Input_new_mouse_K &= ~2;
return Move_cursor_with_constraints() || need_feedback;
return Move_cursor_with_constraints(0) || need_feedback;
}
}
if((key_code && key_code == (Config_Key[SPECIAL_HOLD_PAN][0]&0x0FFF)) || (Config_Key[SPECIAL_HOLD_PAN][0]&modifier) ||
@@ -944,7 +952,7 @@ static int Handle_joystick_press(SDL_JoyButtonEvent event)
if (Input_new_mouse_K)
{
Input_new_mouse_K ^= 3; // Flip bits 0 and 1
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
}
return 0;
@@ -962,7 +970,7 @@ static int Handle_joystick_press(SDL_JoyButtonEvent event)
if (Input_new_mouse_K)
{
Input_new_mouse_K ^= 3; // Flip bits 0 and 1
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
}
return 0;
@@ -970,12 +978,12 @@ static int Handle_joystick_press(SDL_JoyButtonEvent event)
if (event.button == Joybutton_left_click)
{
Input_new_mouse_K = Button_inverter ? 2 : 1;
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
if (event.button == Joybutton_right_click)
{
Input_new_mouse_K = Button_inverter ? 1 : 2;
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
switch(event.button)
{
@@ -1027,7 +1035,7 @@ static int Handle_joystick_press(SDL_JoyButtonEvent event)
Key = (KEY_JOYBUTTON+event.button)|Get_Key_modifiers();
// TODO: systeme de répétition
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
static int Handle_joystick_release(SDL_JoyButtonEvent event)
@@ -1054,12 +1062,12 @@ static int Handle_joystick_release(SDL_JoyButtonEvent event)
if (event.button == Joybutton_left_click)
{
Input_new_mouse_K &= ~1;
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
if (event.button == Joybutton_right_click)
{
Input_new_mouse_K &= ~2;
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
switch(event.button)
@@ -1108,7 +1116,7 @@ static int Handle_joystick_release(SDL_JoyButtonEvent event)
default:
break;
}
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
static void Handle_joystick_movement(SDL_JoyAxisEvent event)
@@ -1166,7 +1174,7 @@ int Cursor_displace(short delta_x, short delta_y)
else if (delta_y>0)
Input_new_mouse_Y = Min(Screen_height-1, y+delta_y);
}
return Move_cursor_with_constraints();
return Move_cursor_with_constraints(0);
}
// This function is the acceleration profile for directional (digital) cursor
@@ -1732,7 +1740,7 @@ int Get_input(int sleep_time)
if (Button_inverter)
mask ^= 3;
Input_new_mouse_K |= mask;
user_feedback_required = Move_cursor_with_constraints();
user_feedback_required = Move_cursor_with_constraints(0);
}
break;
case 2:
@@ -1759,14 +1767,15 @@ int Get_input(int sleep_time)
if (Button_inverter)
mask ^= 3;
Input_new_mouse_K &= ~mask;
user_feedback_required = Move_cursor_with_constraints();
user_feedback_required = Move_cursor_with_constraints(0);
}
break;
case MotionNotify:
//printf("mouse %dx%d\n", event.xmotion.x, event.xmotion.y);
/// @todo call Move_cursor_with_constraints(1) when clipping
Input_new_mouse_X = (event.xmotion.x < 0) ? 0 : event.xmotion.x/Pixel_width;
Input_new_mouse_Y = (event.xmotion.y < 0) ? 0 : event.xmotion.y/Pixel_height;
user_feedback_required = Move_cursor_with_constraints();
user_feedback_required = Move_cursor_with_constraints(0);
break;
case Expose:
GFX2_Log(GFX2_DEBUG, "Expose (%d,%d) (%d,%d)\n", event.xexpose.x, event.xexpose.y, event.xexpose.width, event.xexpose.height);