Fix ColorButton font

- We've added a new "font" attribute in <style>s elements.
- Fonts aren't reset when we refresh the theme. This must be fixed in a future version when the theme can be completely reloaded.

data/themes/default/theme.xml

@@ -1010,7 +1010,7 @@
     <style id="new_frame_button" extends="mini_button">
     </style>
 
-    <style id="color_button" extends="mini_button" border="5">
+    <style id="color_button" extends="mini_button" border="5" font="mini">
     </style>
 
     <style id="splitter">

src/app/ui/color_button.cpp

@@ -15,7 +15,6 @@
 #include "app/color_utils.h"
 #include "app/modules/editors.h"
 #include "app/modules/gfx.h"
-#include "app/modules/gui.h"
 #include "app/ui/color_bar.h"
 #include "app/ui/color_popup.h"
 #include "app/ui/editor/editor.h"
@@ -52,11 +51,9 @@ ColorButton::ColorButton(const app::Color& color,
   , m_dependOnLayer(false)
   , m_canPinSelector(canPinSelector)
 {
-  this->setFocusStop(true);
-
-  setup_mini_font(this);
-  setStyle(SkinTheme::instance()->newStyles.colorButton());
-
+  setFocusStop(true);
+  initTheme();
+  
   UIContext::instance()->add_observer(this);
 }
 
@@ -103,6 +100,12 @@ app::Color ColorButton::getColorByPosition(const gfx::Point& pos)
   return m_color;
 }
 
+void ColorButton::onInitTheme(InitThemeEvent& ev)
+{
+  ButtonBase::onInitTheme(ev);
+  setStyle(SkinTheme::instance()->newStyles.colorButton());
+}
+
 bool ColorButton::onProcessMessage(Message* msg)
 {
   switch (msg->type()) {

src/app/ui/color_button.h

@@ -15,6 +15,10 @@
 #include "obs/signal.h"
 #include "ui/button.h"
 
+namespace ui {
+  class InitThemeEvent;
+}
+
 namespace app {
   class ColorPopup;
 
@@ -41,6 +45,7 @@ namespace app {
 
   protected:
     // Events
+    void onInitTheme(ui::InitThemeEvent& ev) override;
     bool onProcessMessage(ui::Message* msg) override;
     void onSizeHint(ui::SizeHintEvent& ev) override;
     void onPaint(ui::PaintEvent& ev) override;

src/app/ui/skin/skin_theme.cpp

@@ -340,12 +340,13 @@ void SkinTheme::loadXml(const std::string& skinId)
         if (sizeStr)
           size = std::strtol(sizeStr, nullptr, 10);
 
-        if (id == "default") {
-          m_defaultFont = fontData->getFont(size);
-        }
-        else if (id == "mini") {
-          m_miniFont = fontData->getFont(size);
-        }
+        she::Font* font = fontData->getFont(size);
+        m_themeFonts[idStr] = font;
+
+        if (id == "default")
+          m_defaultFont = font;
+        else if (id == "mini")
+          m_miniFont = font;
       }
 
       xmlFont = xmlFont->NextSiblingElement();
@@ -669,6 +670,15 @@ void SkinTheme::loadXml(const std::string& skinId)
         style->setPadding(padding*guiscale());
       }
 
+      // Font
+      {
+        const char* fontId = xmlStyle->Attribute("font");
+        if (fontId) {
+          she::Font* font = m_themeFonts[fontId];
+          style->setFont(font);
+        }
+      }
+
       TiXmlElement* xmlLayer = xmlStyle->FirstChildElement();
       while (xmlLayer) {
         const std::string layerName = xmlLayer->Value();

src/app/ui/skin/skin_theme.h

@@ -142,6 +142,7 @@ namespace app {
       StyleSheet m_stylesheet;
       std::map<std::string, ui::Style*> m_styles;
       std::map<std::string, FontData*> m_fonts;
+      std::map<std::string, she::Font*> m_themeFonts;
       she::Font* m_defaultFont;
       she::Font* m_miniFont;
     };

src/ui/intern.cpp

@@ -42,12 +42,6 @@ void removeWidget(Widget* widget)
     widgets->erase(it);
 }
 
-void resetFontAllWidgets()
-{
-  for (auto widget : *widgets)
-    widget->resetFont();
-}
-
 void reinitThemeForAllWidgets()
 {
   // Reinitialize the theme of each widget

src/ui/intern.h

@@ -31,7 +31,6 @@ namespace ui {
     void addWidget(Widget* widget);
     void removeWidget(Widget* widget);
 
-    void resetFontAllWidgets();
     void reinitThemeForAllWidgets();
 
   } // namespace details

src/ui/style.cpp

@@ -23,6 +23,7 @@ Style::Style(const Style* base)
   , m_margin(base ? base->margin(): Style::UndefinedBorder())
   , m_border(base ? base->border(): Style::UndefinedBorder())
   , m_padding(base ? base->padding(): Style::UndefinedBorder())
+  , m_font(nullptr)
 {
   if (base)
     m_layers = base->layers();

src/ui/style.h

@@ -19,6 +19,7 @@
 #include <vector>
 
 namespace she {
+  class Font;
   class Surface;
 }
 
@@ -98,12 +99,14 @@ namespace ui {
     const gfx::Border& margin() const { return m_margin; }
     const gfx::Border& border() const { return m_border; }
     const gfx::Border& padding() const { return m_padding; }
+    she::Font* font() const { return m_font; }
     const Layers& layers() const { return m_layers; }
 
     void setId(const std::string& id) { m_id = id; }
     void setMargin(const gfx::Border& value) { m_margin = value; }
     void setBorder(const gfx::Border& value) { m_border = value; }
     void setPadding(const gfx::Border& value) { m_padding = value; }
+    void setFont(she::Font* font) { m_font = font; }
     void addLayer(const Layer& layer);
 
   private:
@@ -113,6 +116,7 @@ namespace ui {
     gfx::Border m_margin;
     gfx::Border m_border;
     gfx::Border m_padding;
+    she::Font* m_font;
   };
 
 } // namespace ui

src/ui/theme.cpp

@@ -91,8 +91,6 @@ void Theme::regenerate()
 
   onRegenerate();
 
-  details::resetFontAllWidgets();
-
   // TODO We cannot reinitialize all widgets because this mess all
   // child spacing, border, etc. But it could be good to change the
   // uiscale() and get the new look without the need to restart the

src/ui/widget.cpp

@@ -162,11 +162,6 @@ she::Font* Widget::font() const
   return m_font;
 }
 
-void Widget::resetFont()
-{
-  m_font = nullptr;
-}
-
 void Widget::setBgColor(gfx::Color color)
 {
   m_bgColor = color;
@@ -188,6 +183,8 @@ void Widget::setStyle(Style* style)
   m_style = style;
   m_border = m_theme->calcBorder(this, style);
   m_bgColor = m_theme->calcBgColor(this, m_style);
+  if (style->font())
+    m_font = style->font();
 }
 
 // ===============================================================

src/ui/widget.h

@@ -137,7 +137,6 @@ namespace ui {
     // ===============================================================
 
     she::Font* font() const;
-    void resetFont();
 
     // Gets the background color of the widget.
     gfx::Color bgColor() const {