From a4695c902299c48fc1f8986add2d900882c61e54 Mon Sep 17 00:00:00 2001 From: rubidium Date: Fri, 28 Sep 2007 19:17:33 +0000 Subject: (svn r11182) -Fix [FS#1261] (r11174): bounding boxes caused crashes when zoomed out. Patch by SmatZ. --- src/gfx.cpp | 39 ++++++++++++++++++++++++++++++--------- 1 file changed, 30 insertions(+), 9 deletions(-) diff --git a/src/gfx.cpp b/src/gfx.cpp index 411267525..38db85184 100644 --- a/src/gfx.cpp +++ b/src/gfx.cpp @@ -139,6 +139,27 @@ void GfxDrawLine(int x, int y, int x2, int y2, int color) blitter->DrawLine(dpi->dst_ptr, x, y, x2, y2, dpi->width, dpi->height, color); } +void GfxDrawLineUnscaled(int x, int y, int x2, int y2, int color) +{ + Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter(); + DrawPixelInfo *dpi = _cur_dpi; + + x -= dpi->left; + x2 -= dpi->left; + y -= dpi->top; + y2 -= dpi->top; + + /* Check clipping */ + if (x < 0 && x2 < 0) return; + if (y < 0 && y2 < 0) return; + if (x > dpi->width && x2 > dpi->width) return; + if (y > dpi->height && y2 > dpi->height) return; + + blitter->DrawLine(dpi->dst_ptr, UnScaleByZoom(x, dpi->zoom), UnScaleByZoom(y, dpi->zoom), + UnScaleByZoom(x2, dpi->zoom), UnScaleByZoom(y2, dpi->zoom), + UnScaleByZoom(dpi->width, dpi->zoom), UnScaleByZoom(dpi->height, dpi->zoom), color); +} + /** * Draws the projection of a parallelepiped. * This can be used to draw boxes in world coordinates. @@ -171,16 +192,16 @@ void DrawBox(int x, int y, int dx1, int dy1, int dx2, int dy2, int dx3, int dy3) static const byte color = 255; - GfxDrawLine(x, y, x + dx1, y + dy1, color); - GfxDrawLine(x, y, x + dx2, y + dy2, color); - GfxDrawLine(x, y, x + dx3, y + dy3, color); + GfxDrawLineUnscaled(x, y, x + dx1, y + dy1, color); + GfxDrawLineUnscaled(x, y, x + dx2, y + dy2, color); + GfxDrawLineUnscaled(x, y, x + dx3, y + dy3, color); - GfxDrawLine(x + dx1, y + dy1, x + dx1 + dx2, y + dy1 + dy2, color); - GfxDrawLine(x + dx1, y + dy1, x + dx1 + dx3, y + dy1 + dy3, color); - GfxDrawLine(x + dx2, y + dy2, x + dx2 + dx1, y + dy2 + dy1, color); - GfxDrawLine(x + dx2, y + dy2, x + dx2 + dx3, y + dy2 + dy3, color); - GfxDrawLine(x + dx3, y + dy3, x + dx3 + dx1, y + dy3 + dy1, color); - GfxDrawLine(x + dx3, y + dy3, x + dx3 + dx2, y + dy3 + dy2, color); + GfxDrawLineUnscaled(x + dx1, y + dy1, x + dx1 + dx2, y + dy1 + dy2, color); + GfxDrawLineUnscaled(x + dx1, y + dy1, x + dx1 + dx3, y + dy1 + dy3, color); + GfxDrawLineUnscaled(x + dx2, y + dy2, x + dx2 + dx1, y + dy2 + dy1, color); + GfxDrawLineUnscaled(x + dx2, y + dy2, x + dx2 + dx3, y + dy2 + dy3, color); + GfxDrawLineUnscaled(x + dx3, y + dy3, x + dx3 + dx1, y + dy3 + dy1, color); + GfxDrawLineUnscaled(x + dx3, y + dy3, x + dx3 + dx2, y + dy3 + dy2, color); } -- cgit v1.2.3-54-g00ecf