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fix bug that line alorithm wrongly draws a line when fade_rate is zero

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This commit is contained in:
Jinhao 2018-12-29 06:38:46 +08:00
parent 1f8f991103
commit bed829fa26
3 changed files with 10 additions and 6 deletions
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2
source/gui/widgets/skeletons/text_editor.cpp
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@ -2002,7 +2002,7 @@ namespace nana {
auto fgcolor = scheme_->foreground.get_color();
if (!API::window_enabled(window_))
fgcolor.blend(bgcolor, 0.5); // do nothing !!! should be replace with <code> fgcolor = fgcolor.blend(bgcolor, 0.5); <\code> or removed
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);

2
source/paint/detail/image_process_provider.cpp
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@ -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
{

12
include/nana/paint/detail/image_processor.hpp → source/paint/detail/image_processor.hpp
View File

@ -1,7 +1,7 @@
/*
* Image Processor Algorithm Implementation
* Nana C++ Library(http://www.nanapro.org)
* Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
* Copyright(C) 2003-2018 Jinhao(cnjinhao@hotmail.com)
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
@ -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);