Merge pull request #350 from HollowMan6/pdf-follow-theme

PDF Viewer: Make PDF background and annotate color follow emacs theme

app/pdf-viewer/buffer.py

@@ -256,8 +256,10 @@ class PdfViewerWidget(QWidget):
         self.page_annotate_height = 22
         self.page_annotate_padding_right = 10
         self.page_annotate_padding_bottom = 10
-        self.page_annotate_light_color = QColor("#333333")
-        self.page_annotate_dark_color = QColor("#999999")
+        self.page_annotate_light_color = QColor(self.emacs_var_dict["eaf-emacs-theme-foreground-color"])
+        self.page_annotate_dark_color = QColor(1-QColor(self.emacs_var_dict["eaf-emacs-theme-foreground-color"]).redF(),\
+                                               1-QColor(self.emacs_var_dict["eaf-emacs-theme-foreground-color"]).greenF(),\
+                                               1-QColor(self.emacs_var_dict["eaf-emacs-theme-foreground-color"]).blueF())
         self.font = QFont()
         self.font.setPointSize(12)
 
@@ -273,6 +275,16 @@ class PdfViewerWidget(QWidget):
 
         self.remember_offset = None
 
+    def handle_color(self,color,inverted=False):
+        r = float(color.redF())
+        g = float(color.greenF())
+        b = float(color.blueF())
+        if inverted:
+            r = 1.0-r
+            g = 1.0-g
+            b = 1.0-b
+        return (r,g,b)
+
     def repeat_to_length(self, string_to_expand, length):
         return (string_to_expand * (int(length/len(string_to_expand))+1))[:length]
 
@@ -316,6 +328,10 @@ class PdfViewerWidget(QWidget):
             self.char_dict[index] = self.get_page_char_rect_list(index)
             self.select_area_annot_cache_dict[index] = None
 
+        if self.emacs_var_dict["eaf-pdf-dark-mode"] == "follow":
+            col = self.handle_color(QColor(self.emacs_var_dict["eaf-emacs-theme-background-color"]), self.inverted_mode)
+            page.drawRect(page.rect, color=col, fill=col, overlay=False)
+
         trans = self.page_cache_trans if self.page_cache_trans is not None else fitz.Matrix(scale, scale)
         pixmap = page.getPixmap(matrix=trans, alpha=False)
 

eaf.el

@@ -275,7 +275,9 @@ It must defined at `eaf-browser-search-engines'."
     (eaf-mindmap-dark-mode . "follow")
     (eaf-mindmap-save-path . "~/Documents")
     (eaf-marker-letters . "ASDFHJKLWEOPCNM")
-    (eaf-emacs-theme-mode . ""))
+    (eaf-emacs-theme-mode . "")
+    (eaf-emacs-theme-background-color . "")
+    (eaf-emacs-theme-foreground-color . ""))
   "The alist storing user-defined variables that's shared with EAF Python side.
 
 Try not to modify this alist directly.  Use `eaf-setq' to modify instead."
@@ -2088,13 +2090,25 @@ Make sure that your smartphone is connected to the same WiFi network as this com
 (defun eaf-get-theme-mode ()
   (format "%s"(frame-parameter nil 'background-mode)))
 
+(defun eaf-get-theme-background-color ()
+  (format "%s"(frame-parameter nil 'background-color)))
+
+(defun eaf-get-theme-foreground-color ()
+  (format "%s"(frame-parameter nil 'foreground-color)))
+
 (eaf-setq eaf-emacs-theme-mode (eaf-get-theme-mode))
 
+(eaf-setq eaf-emacs-theme-background-color (eaf-get-theme-background-color))
+
+(eaf-setq eaf-emacs-theme-foreground-color (eaf-get-theme-foreground-color))
+
 (advice-add 'load-theme :around #'eaf-monitor-load-theme)
 (defun eaf-monitor-load-theme (orig-fun &optional arg &rest args)
   "Update `eaf-emacs-theme-mode' after execute `load-theme'."
   (apply orig-fun arg args)
-  (eaf-setq eaf-emacs-theme-mode (eaf-get-theme-mode)))
+  (eaf-setq eaf-emacs-theme-mode (eaf-get-theme-mode))
+  (eaf-setq eaf-emacs-theme-background-color (eaf-get-theme-background-color))
+  (eaf-setq eaf-emacs-theme-foreground-color (eaf-get-theme-foreground-color)))
 
 (define-minor-mode eaf-pdf-outline-mode
   "EAF pdf outline mode."