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Fix initial mouse position and unsafe SDL_Event union access

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This commit is contained in:
Tamás Bálint Misius
2020-08-23 00:25:43 +02:00
parent fd032eff36
commit efc693bf43
3 changed files with 13 additions and 5 deletions
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11
src/PowderToySDL.cpp
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@@ -406,11 +406,11 @@ void EventProcess(SDL_Event event)
// if mouse hasn't moved yet, sdl will send 0,0. We don't want that // if mouse hasn't moved yet, sdl will send 0,0. We don't want that
if (hasMouseMoved) if (hasMouseMoved)
{ {
mousex = event.motion.x; mousex = event.button.x;
mousey = event.motion.y; mousey = event.button.y;
} }
mouseButton = event.button.button; mouseButton = event.button.button;
engine->onMouseClick(event.motion.x, event.motion.y, mouseButton); engine->onMouseClick(mousex, mousey, mouseButton);
mouseDown = true; mouseDown = true;
#if !defined(NDEBUG) && !defined(DEBUG) #if !defined(NDEBUG) && !defined(DEBUG)
@@ -421,8 +421,8 @@ void EventProcess(SDL_Event event)
// if mouse hasn't moved yet, sdl will send 0,0. We don't want that // if mouse hasn't moved yet, sdl will send 0,0. We don't want that
if (hasMouseMoved) if (hasMouseMoved)
{ {
mousex = event.motion.x; mousex = event.button.x;
mousey = event.motion.y; mousey = event.button.y;
} }
mouseButton = event.button.button; mouseButton = event.button.button;
engine->onMouseUnclick(mousex, mousey, mouseButton); engine->onMouseUnclick(mousex, mousey, mouseButton);
@@ -441,6 +441,7 @@ void EventProcess(SDL_Event event)
{ {
//initial mouse coords, sdl won't tell us this if mouse hasn't moved //initial mouse coords, sdl won't tell us this if mouse hasn't moved
CalculateMousePosition(&mousex, &mousey); CalculateMousePosition(&mousex, &mousey);
engine->initialMouse(mousex, mousey);
engine->onMouseMove(mousex, mousey); engine->onMouseMove(mousex, mousey);
calculatedInitialMouse = true; calculatedInitialMouse = true;
} }

6
src/gui/interface/Engine.cpp
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@@ -276,6 +276,12 @@ void Engine::onMouseUnclick(int x, int y, unsigned button)
state_->DoMouseUp(x, y, button); state_->DoMouseUp(x, y, button);
} }
void Engine::initialMouse(int x, int y)
{
mousexp_ = x;
mouseyp_ = y;
}
void Engine::onMouseMove(int x, int y) void Engine::onMouseMove(int x, int y)
{ {
mousex_ = x; mousex_ = x;

1
src/gui/interface/Engine.h
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@@ -25,6 +25,7 @@ namespace ui
void ShowWindow(Window * window); void ShowWindow(Window * window);
int CloseWindow(); int CloseWindow();
void initialMouse(int x, int y);
void onMouseMove(int x, int y); void onMouseMove(int x, int y);
void onMouseClick(int x, int y, unsigned button); void onMouseClick(int x, int y, unsigned button);
void onMouseUnclick(int x, int y, unsigned button); void onMouseUnclick(int x, int y, unsigned button);