WAGE: Fix crash in Brownie's Dream

I guess it would crash everywhere else as well, if console window would
be placed the same way. The problem is that console window goes off
screen a little in that game, but copyRectToScreen arguments are not
adjusted to stay within screen area.

This commit adds some checks and adjusts these arguments.

2 files changed, 27 insertions, 3 deletions

diff --git a/engines/wage/gui-console.cpp b/engines/wage/gui-console.cpp
index 2b364d3657..2476a8c7fb 100644
--- a/engines/wage/gui-console.cpp
+++ b/engines/wage/gui-console.cpp
@@ -306,7 +306,20 @@ void Gui::drawInput() {
 
 		font->drawString(&_screen, _out[_inputTextLineNum], x, y, _screen.w, kColorBlack);
 
-		g_system->copyRectToScreen(_screen.getBasePtr(x, y), _screen.pitch, x, y, _consoleWindow->getInnerDimensions().width(), font->getFontHeight());
+		int w = _consoleWindow->getInnerDimensions().width();
+		int h = font->getFontHeight();
+		if (x < 0) {
+			w += x;
+			x = 0;
+		}
+		if (y < 0) {
+			h += y;
+			y = 0;
+		}
+		if (x + w > _screen.w) w = _screen.w - x;
+		if (y + h > _screen.h) h = _screen.h - y;
+		if (w != 0 && h != 0)
+			g_system->copyRectToScreen(_screen.getBasePtr(x, y), _screen.pitch, x, y, w, h);
 	}
 
 	_cursorX = font->getStringWidth(_out[_inputTextLineNum]) + kConHPadding;
diff --git a/engines/wage/gui.cpp b/engines/wage/gui.cpp
index 212e75be48..cd259e6ddd 100644
--- a/engines/wage/gui.cpp
+++ b/engines/wage/gui.cpp
@@ -220,8 +220,19 @@ void Gui::draw() {
 	_wm.draw();
 
 	if (_cursorDirty && _cursorRect.left < _screen.w && _cursorRect.bottom < _screen.h) {
-		g_system->copyRectToScreen(_screen.getBasePtr(_cursorRect.left, _cursorRect.top), _screen.pitch,
-				_cursorRect.left, _cursorRect.top, _cursorRect.width(), _cursorRect.height());
+		int x = _cursorRect.left, y = _cursorRect.top, w = _cursorRect.width(), h = _cursorRect.height();
+		if (x < 0) {
+			w += x;
+			x = 0;
+		}
+		if (y < 0) {
+			h += y;
+			y = 0;
+		}
+		if (x + w > _screen.w) w = _screen.w - x;
+		if (y + h > _screen.h) h = _screen.h - y;
+		if (w != 0 && h != 0)
+			g_system->copyRectToScreen(_screen.getBasePtr(x, y), _screen.pitch, x, y, w, h);
 
 		_cursorDirty = false;
 	}