Fix problem resetting fonts after F5 for widgets with "mini font" (after theme is reloaded)

There are some widgets (e.g. fg/bg color buttons in the ColorBar, and
ContextBar's check-boxes) that use a "mini font". We could setup the mini
font in onInitTheme(), but the whole program is not ready to do something
like that (there are too much child_spacing/borders values that are set
outside onInitTheme).

A better way is to ask to the theme itself (Theme::getWidgetFont())
about what font to use for each specific widget. And the Widget::m_font
field can act as a cache of this requested font. So now the "mini font"
is specified in a SkinProperty's flag.

src/app/modules/gui.cpp

@@ -281,7 +281,8 @@ void save_window_pos(Widget* window, const char *section)
 
 Widget* setup_mini_font(Widget* widget)
 {
-  widget->setFont(((SkinTheme*)widget->getTheme())->getMiniFont());
+  SkinPropertyPtr skinProp = get_skin_property(widget);
+  skinProp->setMiniFont();
   return widget;
 }
 

src/app/ui/color_button.cpp

@@ -47,7 +47,7 @@ ColorButton::ColorButton(const app::Color& color, PixelFormat pixelFormat)
 {
   this->setFocusStop(true);
 
-  setFont(static_cast<SkinTheme*>(getTheme())->getMiniFont());
+  setup_mini_font(this);
 }
 
 ColorButton::~ColorButton()

src/app/ui/context_bar.cpp

@@ -651,7 +651,6 @@ public:
   }
 
 protected:
-
   void onClick(Event& ev) override {
     CheckBox::onClick(ev);
 
@@ -804,15 +803,16 @@ ContextBar::ContextBar()
   // addChild(new InkSelectionField());
 
   addChild(m_sprayBox = new HBox());
-  m_sprayBox->addChild(setup_mini_font(new Label("Spray:")));
+  m_sprayBox->addChild(m_sprayLabel = new Label("Spray:"));
   m_sprayBox->addChild(m_sprayWidth = new SprayWidthField());
   m_sprayBox->addChild(m_spraySpeed = new SpraySpeedField());
 
+  setup_mini_font(m_sprayLabel);
+
   addChild(m_freehandBox = new HBox());
 #if 0                           // TODO for v1.1
-  Label* freehandLabel;
-  m_freehandBox->addChild(freehandLabel = new Label("Freehand:"));
-  setup_mini_font(freehandLabel);
+  m_freehandBox->addChild(m_freehandLabel = new Label("Freehand:"));
+  setup_mini_font(m_freehandLabel);
 #endif
   m_freehandBox->addChild(m_freehandAlgo = new FreehandAlgorithmField());
 
@@ -856,11 +856,6 @@ ContextBar::~ContextBar()
     m_toolSettings->removeObserver(this);
 }
 
-bool ContextBar::onProcessMessage(Message* msg)
-{
-  return Box::onProcessMessage(msg);
-}
-
 void ContextBar::onPreferredSize(PreferredSizeEvent& ev)
 {
   ev.setPreferredSize(gfx::Size(0, 18*guiscale())); // TODO calculate height

src/app/ui/context_bar.h

@@ -61,7 +61,6 @@ namespace app {
       IBrushSettings* brushSettings = nullptr);
 
   protected:
-    bool onProcessMessage(ui::Message* msg) override;
     void onPreferredSize(ui::PreferredSizeEvent& ev) override;
 
     // ToolSettingsObserver impl
@@ -122,6 +121,7 @@ namespace app {
     FreehandAlgorithmField* m_freehandAlgo;
     BrushPatternField* m_brushPatternField;
     ui::Box* m_sprayBox;
+    ui::Label* m_sprayLabel;
     SprayWidthField* m_sprayWidth;
     SpraySpeedField* m_spraySpeed;
     ui::Box* m_selectionOptionsBox;

src/app/ui/skin/skin_property.h

@@ -38,6 +38,9 @@ namespace app {
       LookType getLook() const { return m_look; }
       void setLook(LookType look) { m_look = look; }
 
+      bool hasMiniFont() const { return m_miniFont; }
+      void setMiniFont() { m_miniFont = true; }
+
       int getUpperLeft() const { return m_upperLeft; }
       int getUpperRight() const { return m_upperRight; }
       int getLowerLeft() const { return m_lowerLeft; }
@@ -50,6 +53,7 @@ namespace app {
 
     private:
       LookType m_look;
+      bool m_miniFont;
       int m_upperLeft;
       int m_upperRight;
       int m_lowerLeft;

src/app/ui/skin/skin_theme.cpp

@@ -627,6 +627,15 @@ she::Surface* SkinTheme::sliceSheet(she::Surface* sur, const gfx::Rect& bounds)
   return sur;
 }
 
+she::Font* SkinTheme::getWidgetFont(const Widget* widget) const
+{
+  SkinPropertyPtr skinPropery = widget->getProperty(SkinProperty::Name);
+  if (skinPropery && skinPropery->hasMiniFont())
+    return getMiniFont();
+  else
+    return getDefaultFont();
+}
+
 Cursor* SkinTheme::getCursor(CursorType type)
 {
   if (type == kNoCursor) {

src/app/ui/skin/skin_theme.h

@@ -47,40 +47,41 @@ namespace app {
       SkinTheme();
       ~SkinTheme();
 
-      she::Font* getDefaultFont() const { return m_defaultFont; }
+      she::Font* getDefaultFont() const override { return m_defaultFont; }
+      she::Font* getWidgetFont(const ui::Widget* widget) const override;
       she::Font* getMiniFont() const { return m_miniFont; }
 
-      ui::Cursor* getCursor(ui::CursorType type);
-      void initWidget(ui::Widget* widget);
-      void getWindowMask(ui::Widget* widget, gfx::Region& region);
-      void setDecorativeWidgetBounds(ui::Widget* widget);
+      ui::Cursor* getCursor(ui::CursorType type) override;
+      void initWidget(ui::Widget* widget) override;
+      void getWindowMask(ui::Widget* widget, gfx::Region& region) override;
+      void setDecorativeWidgetBounds(ui::Widget* widget) override;
 
-      void paintDesktop(ui::PaintEvent& ev);
-      void paintBox(ui::PaintEvent& ev);
-      void paintButton(ui::PaintEvent& ev);
-      void paintCheckBox(ui::PaintEvent& ev);
-      void paintEntry(ui::PaintEvent& ev);
-      void paintGrid(ui::PaintEvent& ev);
-      void paintLabel(ui::PaintEvent& ev);
-      void paintLinkLabel(ui::PaintEvent& ev);
-      void paintListBox(ui::PaintEvent& ev);
-      void paintListItem(ui::PaintEvent& ev);
-      void paintMenu(ui::PaintEvent& ev);
-      void paintMenuItem(ui::PaintEvent& ev);
-      void paintSplitter(ui::PaintEvent& ev);
-      void paintRadioButton(ui::PaintEvent& ev);
-      void paintSeparator(ui::PaintEvent& ev);
-      void paintSlider(ui::PaintEvent& ev);
-      void paintComboBoxEntry(ui::PaintEvent& ev);
-      void paintComboBoxButton(ui::PaintEvent& ev);
-      void paintTextBox(ui::PaintEvent& ev);
-      void paintView(ui::PaintEvent& ev);
-      void paintViewScrollbar(ui::PaintEvent& ev);
-      void paintViewViewport(ui::PaintEvent& ev);
-      void paintWindow(ui::PaintEvent& ev);
-      void paintPopupWindow(ui::PaintEvent& ev);
+      void paintDesktop(ui::PaintEvent& ev) override;
+      void paintBox(ui::PaintEvent& ev) override;
+      void paintButton(ui::PaintEvent& ev) override;
+      void paintCheckBox(ui::PaintEvent& ev) override;
+      void paintEntry(ui::PaintEvent& ev) override;
+      void paintGrid(ui::PaintEvent& ev) override;
+      void paintLabel(ui::PaintEvent& ev) override;
+      void paintLinkLabel(ui::PaintEvent& ev) override;
+      void paintListBox(ui::PaintEvent& ev) override;
+      void paintListItem(ui::PaintEvent& ev) override;
+      void paintMenu(ui::PaintEvent& ev) override;
+      void paintMenuItem(ui::PaintEvent& ev) override;
+      void paintSplitter(ui::PaintEvent& ev) override;
+      void paintRadioButton(ui::PaintEvent& ev) override;
+      void paintSeparator(ui::PaintEvent& ev) override;
+      void paintSlider(ui::PaintEvent& ev) override;
+      void paintComboBoxEntry(ui::PaintEvent& ev) override;
+      void paintComboBoxButton(ui::PaintEvent& ev) override;
+      void paintTextBox(ui::PaintEvent& ev) override;
+      void paintView(ui::PaintEvent& ev) override;
+      void paintViewScrollbar(ui::PaintEvent& ev) override;
+      void paintViewViewport(ui::PaintEvent& ev) override;
+      void paintWindow(ui::PaintEvent& ev) override;
+      void paintPopupWindow(ui::PaintEvent& ev) override;
+      void paintTooltip(ui::PaintEvent& ev) override;
       void paintWindowButton(ui::PaintEvent& ev);
-      void paintTooltip(ui::PaintEvent& ev);
 
       int get_button_selected_offset() const { return 0; } // TODO Configurable in xml
 

src/ui/component.cpp

@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013  David Capello
+// Copyright (C) 2001-2013, 2015  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -22,9 +22,9 @@ Component::~Component()
 {
 }
 
-PropertyPtr Component::getProperty(const std::string& name)
+PropertyPtr Component::getProperty(const std::string& name) const
 {
-  Properties::iterator it = m_properties.find(name);
+  auto it = m_properties.find(name);
   if (it != m_properties.end())
     return it->second;
   else
@@ -36,10 +36,9 @@ void Component::setProperty(PropertyPtr property)
   m_properties[property->getName()] = property;
 }
 
-bool Component::hasProperty(const std::string& name)
+bool Component::hasProperty(const std::string& name) const
 {
-  Properties::iterator it = m_properties.find(name);
-  return it != m_properties.end();
+  return (m_properties.find(name) != m_properties.end());
 }
 
 void Component::removeProperty(const std::string& name)

src/ui/component.h

@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013  David Capello
+// Copyright (C) 2001-2013, 2015  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -27,10 +27,10 @@ namespace ui {
     Component();
     virtual ~Component();
 
-    PropertyPtr getProperty(const std::string& name);
+    PropertyPtr getProperty(const std::string& name) const;
     void setProperty(PropertyPtr property);
 
-    bool hasProperty(const std::string& name);
+    bool hasProperty(const std::string& name) const;
     void removeProperty(const std::string& name);
 
     const Properties& getProperties() const;

src/ui/intern.cpp

@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013  David Capello
+// Copyright (C) 2001-2013, 2015  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -37,36 +37,29 @@ void addWidget(Widget* widget)
 
 void removeWidget(Widget* widget)
 {
-  std::list<Widget*>::iterator it =
-    std::find(widgets->begin(), widgets->end(), widget);
-
+  auto it = std::find(widgets->begin(), widgets->end(), widget);
   if (it != widgets->end())
     widgets->erase(it);
 }
 
-void setFontOfAllWidgets(she::Font* font)
+void resetFontAllWidgets()
 {
-  for (std::list<Widget*>::iterator
-         it=widgets->begin(), end=widgets->end();
-       it != end; ++it) {
-    (*it)->setFont(font);
-  }
+  for (auto widget : *widgets)
+    widget->resetFont();
 }
 
 void reinitThemeForAllWidgets()
 {
   // Reinitialize the theme of each widget
-  for (std::list<Widget*>::iterator it=widgets->begin(), end=widgets->end();
-       it != end; ++it) {
-      (*it)->setTheme(CurrentTheme::get());
-      (*it)->initTheme();
-    }
+  for (auto widget : *widgets) {
+    widget->setTheme(CurrentTheme::get());
+    widget->initTheme();
+  }
 
   // Remap the windows
-  for (std::list<Widget*>::iterator it=widgets->begin(), end=widgets->end();
-       it != end; ++it) {
-    if ((*it)->type == kWindowWidget)
-      static_cast<Window*>(*it)->remapWindow();
+  for (auto widget : *widgets) {
+    if (widget->type == kWindowWidget)
+      static_cast<Window*>(widget)->remapWindow();
   }
 
   // Redraw the whole screen

src/ui/intern.h

@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013  David Capello
+// Copyright (C) 2001-2013, 2015  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -26,7 +26,7 @@ namespace ui {
   void addWidget(Widget* widget);
   void removeWidget(Widget* widget);
 
-  void setFontOfAllWidgets(she::Font* font);
+  void resetFontAllWidgets();
   void reinitThemeForAllWidgets();
 
   // theme.cpp

src/ui/theme.cpp

@@ -45,7 +45,7 @@ void Theme::regenerate()
 
   onRegenerate();
 
-  setFontOfAllWidgets(getDefaultFont());
+  resetFontAllWidgets();
 
   // TODO We cannot reinitialize all widgets because this mess all
   // child spacing, border, etc. But it could be good to change the

src/ui/theme.h

@@ -39,6 +39,7 @@ namespace ui {
     void setScale(int value) { m_guiscale = value; }
 
     virtual she::Font* getDefaultFont() const = 0;
+    virtual she::Font* getWidgetFont(const Widget* widget) const = 0;
 
     virtual Cursor* getCursor(CursorType type) = 0;
     virtual void initWidget(Widget* widget) = 0;

src/ui/widget.cpp

@@ -80,7 +80,7 @@ Widget::Widget(WidgetType type)
   this->m_theme = CurrentTheme::get();
 
   this->m_align = 0;
-  this->m_font = (this->m_theme ? this->m_theme->getDefaultFont(): nullptr);
+  this->m_font = nullptr;
   this->m_bgColor = gfx::ColorNone;
 
   m_preferredSize = NULL;
@@ -167,13 +167,16 @@ void Widget::setTextQuiet(const std::string& text)
 
 she::Font* Widget::getFont() const
 {
+  if (!m_font) {
+    ASSERT(m_theme);
+    m_font = m_theme->getWidgetFont(this);
+  }
   return m_font;
 }
 
-void Widget::setFont(she::Font* font)
+void Widget::resetFont()
 {
-  m_font = font;
-  invalidate();
+  m_font = nullptr;
 }
 
 void Widget::setBgColor(gfx::Color color)
@@ -185,9 +188,7 @@ void Widget::setBgColor(gfx::Color color)
 void Widget::setTheme(Theme* theme)
 {
   m_theme = theme;
-
-  // TODO maybe some Style in Widget should be great
-  setFont(m_theme ? m_theme->getDefaultFont(): nullptr);
+  m_font = nullptr;
 }
 
 // ===============================================================

src/ui/widget.h

@@ -142,7 +142,7 @@ namespace ui {
     // ===============================================================
 
     she::Font* getFont() const;
-    void setFont(she::Font* font);
+    void resetFont();
 
     // Gets the background color of the widget.
     gfx::Color getBgColor() const {
@@ -382,7 +382,7 @@ namespace ui {
     Theme* m_theme;              // Widget's theme
     int m_align;                 // Widget alignment
     std::string m_text;          // Widget text
-    she::Font* m_font;           // Text font type
+    mutable she::Font* m_font;   // Cached font returned by the theme
     gfx::Color m_bgColor;        // Background color
     gfx::Rect m_bounds;
     gfx::Region m_updateRegion;   // Region to be redrawed.