fix bugs

plugins/libwmfun/drawstring.c

@@ -36,6 +36,7 @@ typedef struct __FreeTypeData{
     FT_Face face;
     RColor color;
     WMFreeTypeRImage **glyphs_array;
+    WMFreeTypeRImage **glyphs_shadow_array;
     /* will use this when we have frame window plugin */
     /* char *last_titlestr; */
 } WMFreeTypeData;
@@ -58,6 +59,11 @@ initDrawPlainString(Display *dpy, Colormap cmap) {
     ds_cmap = cmap;
 }
 
+void
+destroyDrawPlainString(proplist_t pl, void **func_data) {
+    return;
+}
+
 void
 drawPlainString (proplist_t pl, Drawable d,
         int x, int y, unsigned width, unsigned height,
@@ -204,6 +210,8 @@ void initDrawFreeTypeString(proplist_t pl, void **init_data) {
     
     data->glyphs_array = malloc(sizeof(WMFreeTypeRImage*) * MAX_GLYPHS);
     memset(data->glyphs_array, 0, sizeof(WMFreeTypeRImage*) * MAX_GLYPHS);
+    data->glyphs_shadow_array = malloc(sizeof(WMFreeTypeRImage*) * MAX_GLYPHS);
+    memset(data->glyphs_shadow_array, 0, sizeof(WMFreeTypeRImage*) * MAX_GLYPHS);
 
     if (!rc) {
         RContextAttributes rcattr;
@@ -217,7 +225,7 @@ void initDrawFreeTypeString(proplist_t pl, void **init_data) {
 
     /* case 1 -- no no case 2 yet :P */
     if (!inst_ft_library) {
-        FT_Init_FreeType(ft_library);
+        FT_Init_FreeType(&ft_library);
         inst_ft_library++;
     }
     _debug("initialize freetype library\n");
@@ -238,14 +246,58 @@ destroyDrawFreeTypeString(proplist_t pl, void **func_data) {
                 RDestroyImage(data->glyphs_array[i]->image);
             free(data->glyphs_array[i]);
         }
+        if (data->glyphs_shadow_array[i]) {
+            if (data->glyphs_shadow_array[i]->image)
+                RDestroyImage(data->glyphs_shadow_array[i]->image);
+            free(data->glyphs_shadow_array[i]);
+        }
     }
     free(data->glyphs_array);
-    free(data);
+    free(data->glyphs_shadow_array);
     FT_Done_Face(data->face);
+    free(data);
     inst_ft_library--;
     if (!inst_ft_library) FT_Done_FreeType(ft_library);
 }
 
+void
+logicalCombineArea(RImage *bg, RImage *image,
+        int _sx, int _sy,
+        int _sw, int _sh,
+        int _dx, int _dy) {
+
+    if (_dx >= bg->width) {
+        return;
+    } else if (_dx + image->width > bg->width) {
+        _sw = bg->width - _dx;
+    }
+    if (_dx + image->width < 0) {
+        return;
+    } else if (_dx < 0) {
+        _sx = -_dx;
+        _sw = image->width + _dx;
+        _dx = 0;
+    }
+
+    if (_dy >= bg->height) {
+        return;
+    } else if (_dy + image->height > bg->height) {
+        _sh = bg->height - _dy;
+    }
+    if (_dy + image->height < 0) {
+        return;
+    } else if (_dy < 0) {
+        _sy = -_dy;
+        _sh = image->height + _dy;
+        _dy = 0;
+    }
+
+    if (_sh > 0 && _sw > 0)
+        RCombineArea(bg, image, _sx, _sy,
+               _sw, _sh, _dx, _dy);
+
+}
+
 void
 drawFreeTypeString (proplist_t pl, Drawable d,
         int x, int y, unsigned width, unsigned height,
@@ -274,53 +326,22 @@ drawFreeTypeString (proplist_t pl, Drawable d,
         for (i = 0, j = 3; i < strlen(text); i++) {
             if (!data->glyphs_array[text[i]]) {
                 data->glyphs_array[text[i]] = renderChar(data->face, (FT_ULong)text[i], &data->color);
+                data->glyphs_shadow_array[text[i]] = renderChar(data->face, (FT_ULong)text[i], &black_color);
                 _debug("alloc %c\n", text[i]);
             }
             if (data->glyphs_array[text[i]]->image) {
                 int _sx, _dx, _sy, _dy, _sw, _sh;
 
-                _sx = 0;
+                _sx = 0; _sy = 0;
                 _dx = j + data->glyphs_array[text[i]]->left;
-                _sw = data->glyphs_array[text[i]]->image->width;
-                _sy = 0;
                 _dy = rimg->height - data->glyphs_array[text[i]]->top ;
+                _sw = data->glyphs_array[text[i]]->image->width;
                 _sh = data->glyphs_array[text[i]]->image->height;
 
-                if (_dx >= rimg->width) {
+                logicalCombineArea(rimg, data->glyphs_shadow_array[text[i]]->image, _sx, _sy,
-                    j += data->glyphs_array[text[i]]->advance_x >> 6;
+                        _sw, _sh, _dx-2, _dy-2);
-                    continue;
+                logicalCombineArea(rimg, data->glyphs_array[text[i]]->image, _sx, _sy,
-                } else if (_dx + data->glyphs_array[text[i]]->image->width > rimg->width) {
+                        _sw, _sh, _dx-3, _dy-3);
-                    _sw = rimg->width - _dx;
-                }
-                if (_dx + data->glyphs_array[text[i]]->image->width < 0) {
-                    j += data->glyphs_array[text[i]]->advance_x >> 6;
-                    continue;
-                } else if (_dx < 0) {
-                    _sx = -_dx;
-                    _sw = data->glyphs_array[text[i]]->image->width + _dx;
-                    _dx = 0;
-                }
-
-
-                if (_dy >= rimg->height) {
-                    j += data->glyphs_array[text[i]]->advance_x >> 6;
-                    continue;
-                } else if (_dy + data->glyphs_array[text[i]]->image->height > rimg->height) {
-                    _sh = rimg->height - _dy;
-                }
-                if (_dy + data->glyphs_array[text[i]]->image->height < 0) {
-                    j += data->glyphs_array[text[i]]->advance_x >> 6;
-                    continue;
-                } else if (_dy < 0) {
-                    _sy = -_dy;
-                    _sh = data->glyphs_array[text[i]]->image->height + _dy;
-                    _dy = 0;
-                }
-
-
-                if (_sh > 0 && _sw > 0)
-                    RCombineArea(rimg, data->glyphs_array[text[i]]->image, _sx, _sy,
-                            _sw, _sh, _dx, _dy);
 
                 j += data->glyphs_array[text[i]]->advance_x >> 6;
             }