diff options
Diffstat (limited to 'src/libui_sdl')
| -rw-r--r-- | src/libui_sdl/libui/unix/drawmatrix.c | 20 | ||||
| -rw-r--r-- | src/libui_sdl/main.cpp | 6 |
2 files changed, 16 insertions, 10 deletions
diff --git a/src/libui_sdl/libui/unix/drawmatrix.c b/src/libui_sdl/libui/unix/drawmatrix.c index ac7ac57..f12b303 100644 --- a/src/libui_sdl/libui/unix/drawmatrix.c +++ b/src/libui_sdl/libui/unix/drawmatrix.c @@ -25,35 +25,41 @@ static void c2m(cairo_matrix_t *c, uiDrawMatrix *m) void uiDrawMatrixTranslate(uiDrawMatrix *m, double x, double y) { cairo_matrix_t c; + cairo_matrix_t tmp; m2c(m, &c); - cairo_matrix_translate(&c, x, y); + cairo_matrix_init_translate(&tmp, x, y); + cairo_matrix_multiply(&c, &c, &tmp); c2m(&c, m); } void uiDrawMatrixScale(uiDrawMatrix *m, double xCenter, double yCenter, double x, double y) { cairo_matrix_t c; + cairo_matrix_t tmp; double xt, yt; m2c(m, &c); xt = x; yt = y; scaleCenter(xCenter, yCenter, &xt, &yt); - cairo_matrix_translate(&c, xt, yt); - cairo_matrix_scale(&c, x, y); - cairo_matrix_translate(&c, -xt, -yt); + cairo_matrix_init_translate(&tmp, xt, yt); + cairo_matrix_scale(&tmp, x, y); + cairo_matrix_translate(&tmp, -xt, -yt); + cairo_matrix_multiply(&c, &c, &tmp); c2m(&c, m); } void uiDrawMatrixRotate(uiDrawMatrix *m, double x, double y, double amount) { cairo_matrix_t c; + cairo_matrix_t tmp; m2c(m, &c); - cairo_matrix_translate(&c, x, y); - cairo_matrix_rotate(&c, amount); - cairo_matrix_translate(&c, -x, -y); + cairo_matrix_init_translate(&tmp, x, y); + cairo_matrix_rotate(&tmp, amount); + cairo_matrix_translate(&tmp, -x, -y); + cairo_matrix_multiply(&c, &c, &tmp); c2m(&c, m); } diff --git a/src/libui_sdl/main.cpp b/src/libui_sdl/main.cpp index 110dd25..34d0760 100644 --- a/src/libui_sdl/main.cpp +++ b/src/libui_sdl/main.cpp @@ -594,7 +594,7 @@ void SetupScreenRects(int width, int height) switch (ScreenRotation) { - case 1: // 90\B0 + case 1: // 90° { uiDrawMatrixTranslate(&TopScreenTrans, -TopScreenRect.X, -TopScreenRect.Y); uiDrawMatrixRotate(&TopScreenTrans, 0, 0, M_PI/2.0f); @@ -612,7 +612,7 @@ void SetupScreenRects(int width, int height) } break; - case 2: // 180\B0 + case 2: // 180° { uiDrawMatrixTranslate(&TopScreenTrans, -TopScreenRect.X, -TopScreenRect.Y); uiDrawMatrixRotate(&TopScreenTrans, 0, 0, M_PI); @@ -624,7 +624,7 @@ void SetupScreenRects(int width, int height) } break; - case 3: // 270\B0 + case 3: // 270° { uiDrawMatrixTranslate(&TopScreenTrans, -TopScreenRect.X, -TopScreenRect.Y); uiDrawMatrixRotate(&TopScreenTrans, 0, 0, -M_PI/2.0f); |