Merge branch 'hotfix-1.6.2' into develop-1.7

.travis.yml

@@ -46,6 +46,8 @@ before_install:
   - cd ..
   - git clone --depth=1 --branch=cmake-dev https://github.com/qPCR4vir/nana-demo.git nana-demo
   - export PATH="$HOME/bin:$PATH"
+
+  #- mkdir ~/bin #it seemd that a bin already exists from 20170901 
   - wget --no-check-certificate --no-clobber -O /tmp/tools/cmake https://cmake.org/files/v3.12/cmake-3.12.0-rc3-Linux-x86_64.sh || true
   - chmod -R +x /tmp/tools
 

include/nana/gui/widgets/group.hpp

@@ -42,6 +42,13 @@ namespace nana{
 		using field_reference = place::field_reference;
 		constexpr static const std::size_t npos = static_cast<std::size_t>(-1);
 
+		enum class background_mode
+		{
+			none,
+			transparent,
+			blending
+		};
+
 		/// The default construction
 		group();
 
@@ -66,7 +73,8 @@ namespace nana{
 		checkbox& add_option(::std::string);
 
 		/// Modifies the alignment of the title
-		void caption_align(align position);
+		group& caption_align(align position);
+		group& caption_background_mode(background_mode mode);
 
 		/// Enables/disables the radio mode which is single selection
 		group& radio_mode(bool);

source/gui/element.cpp

@@ -163,7 +163,8 @@ namespace nana
 						bld_fgcolor = fgcolor.blend(highlighted, 0.6);
 						break;
 					case element_state::disabled:
-						bld_bgcolor = bld_fgcolor = static_cast<color_rgb>(0xb2b7bc);
+						bld_bgcolor = static_cast<color_rgb>(0xE0E0E0);
+						bld_fgcolor = static_cast<color_rgb>(0x999A9E);
 						break;
 					default:
 						//Leave things as they are

source/gui/widgets/checkbox.cpp

@@ -85,9 +85,13 @@ namespace nana{ namespace drawerbase
 				graph.text_metrics(txt_px, descent, ileading);
 				txt_px += (descent + 2);
 
+				auto e_state = API::element_state(*wdg);
+				if(!wdg->enabled())
+					e_state = element_state::disabled;
+
 				impl_->crook.draw(graph,
 					impl_->scheme_ptr->square_bgcolor.get(wdg->bgcolor()), impl_->scheme_ptr->square_border_color.get(wdg->fgcolor()),
-					rectangle(0, txt_px > 16 ? (txt_px - 16) / 2 : 0, 16, 16), API::element_state(*wdg));
+					rectangle(0, txt_px > 16 ? (txt_px - 16) / 2 : 0, 16, 16), e_state);
 			}
 
 			void drawer::mouse_down(graph_reference graph, const arg_mouse&)

source/gui/widgets/group.cpp

@@ -36,6 +36,7 @@ namespace nana{
 	{
 		label	caption;
 		align	caption_align{ align::left };
+		background_mode caption_mode{ background_mode::blending };
 		place	place_content;
 		unsigned gap{2};
 		std::string usr_div_str;
@@ -154,7 +155,7 @@ namespace nana{
 		return *impl_->options.back();
 	}
 
-	void group::caption_align(align position)
+	group& group::caption_align(align position)
 	{
 		if (position != impl_->caption_align)
 		{
@@ -163,6 +164,32 @@ namespace nana{
 			impl_->place_content.collocate();
 			API::refresh_window(*this);
 		}
+		return *this;
+	}
+
+	group&  group::caption_background_mode(background_mode mode)
+	{
+		if (mode != impl_->caption_mode)
+		{
+			impl_->caption_mode = mode;
+			switch (mode)
+			{
+			case background_mode::none:
+				impl_->caption.bgcolor(this->bgcolor());
+				impl_->caption.transparent(false);
+				break;
+			case background_mode::blending:
+				impl_->caption.transparent(true);
+				impl_->caption.bgcolor(API::bgcolor(this->parent()).blend(colors::black, 0.025));
+				break;
+			case background_mode::transparent:
+				impl_->caption.transparent(true);
+				impl_->caption.bgcolor(API::bgcolor(this->parent()).blend(colors::black, 0.025));
+				break;
+			}
+			API::refresh_window(*this);
+		}
+		return *this;
 	}
 
 	group& group::radio_mode(bool enable)
@@ -295,17 +322,20 @@ namespace nana{
 				),
 				3, 3, this->scheme().border, true, this->bgcolor());
 
-			auto opt_r = API::window_rectangle(impl_->caption);
+			if (background_mode::blending == impl_->caption_mode)
-			if (opt_r)
 			{
-				rectangle grad_r{ opt_r->position(), nana::size{ opt_r->width + 4, static_cast<unsigned>(top_round_line - opt_r->y) } };
+				auto opt_r = API::window_rectangle(impl_->caption);
+				if (opt_r)
+				{
+					rectangle grad_r{ opt_r->position(), nana::size{ opt_r->width + 4, static_cast<unsigned>(top_round_line - opt_r->y) } };
 
-				grad_r.y += top_round_line*2  / 3;
+					grad_r.y += top_round_line * 2 / 3;
-				grad_r.x -= 2;
+					grad_r.x -= 2;
 
-				graph.gradual_rectangle(grad_r,
+					graph.gradual_rectangle(grad_r,
-					API::bgcolor(this->parent()), this->bgcolor(), true
+						API::bgcolor(this->parent()), this->bgcolor(), true
-					);
+						);
+				}
 			}
 		});
 	}

source/gui/widgets/label.cpp

@@ -130,7 +130,7 @@ namespace nana
 						if (!_m_foreach_visual_line(graph, rs))
 							break;
 
-						rs.pos.y += static_cast<int>(rs.vslines.back().extent_height_px);
+						//Now the y-position of rs has been modified to next line.
 					}
 
 					if (transient_.current_font != pre_font)
@@ -531,10 +531,6 @@ namespace nana
 
 				bool _m_foreach_visual_line(graph_reference graph, render_status& rs)
 				{
-					std::wstring text;
-					
-					content_element_iterator block_start;
-
 					auto const bottom = static_cast<int>(graph.height()) - 1;
 
 					for (auto & vsline : rs.vslines)

source/gui/widgets/skeletons/text_editor.cpp

@@ -2002,7 +2002,7 @@ namespace nana {
 
 				auto fgcolor = scheme_->foreground.get_color();
 				if (!API::window_enabled(window_))
-					fgcolor.blend(bgcolor, 0.5);
+					fgcolor = fgcolor.blend(bgcolor, 0.5); //Thank to besh81 for getting the fgcolor to be changed
 
 				if (API::widget_borderless(window_))
 					graph_.rectangle(false, bgcolor);

source/gui/widgets/slider.cpp

@@ -758,6 +758,10 @@ namespace nana
 
 				void trigger::mouse_move(graph_reference graph, const arg_mouse& arg)
 				{
+					// check if slider is disabled
+					if(!API::get_widget(arg.window_handle)->enabled()) 
+						return;		// do nothing
+					
 					bool updated = false;
 					if (model_ptr_->if_trace_slider())
 					{

source/paint/detail/image_process_provider.cpp

@@ -1,7 +1,7 @@
 #include <nana/push_ignore_diagnostic>
 #include <nana/paint/detail/image_process_provider.hpp>
 
-#include <nana/paint/detail/image_processor.hpp>
+#include "image_processor.hpp"
 
 namespace nana
 {

source/paint/detail/image_processor.hpp

@@ -15,8 +15,8 @@
 
 #ifndef NANA_PAINT_DETAIL_IMAGE_PROCESSOR_HPP
 #define NANA_PAINT_DETAIL_IMAGE_PROCESSOR_HPP
-#include "../image_process_interface.hpp"
 #include <nana/paint/pixel_buffer.hpp>
+#include <nana/paint/image_process_interface.hpp>
 #include <nana/paint/detail/native_paint_interface.hpp>
 #include <algorithm>
 
@@ -421,15 +421,19 @@ namespace detail
 		{
 			virtual void process(paint::pixel_buffer & pixbuf, const nana::point& pos_beg, const nana::point& pos_end, const ::nana::color& clr, double fade_rate) const
 			{
+				//Return if it is completely transparent
+				if (fade_rate <= 0)
+					return;
+
 				auto rgb_color = clr.px_color().value;
 				const std::size_t bytes_pl = pixbuf.bytes_per_line();
 				
 				unsigned char * fade_table = nullptr;
 				std::unique_ptr<unsigned char[]> autoptr;
 				nana::pixel_argb_t rgb_imd = {};
-				if(fade_rate != 0.0)
+				if(fade_rate < 1)
 				{
-					autoptr = detail::alloc_fade_table(1 - fade_rate);
+					autoptr = detail::alloc_fade_table(1.0 - fade_rate);
 					fade_table = autoptr.get();
 					rgb_imd.value = rgb_color;
 					rgb_imd = detail::fade_color_intermedia(rgb_imd, fade_table);