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fix bug that group draws gradual rectangle for caption at wrong position

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This commit is contained in:
Jinhao 2018-07-01 15:06:15 +08:00
parent 3d810fddac
commit 40a6584a75
2 changed files with 11 additions and 5 deletions
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2
include/nana/gui/msgbox.hpp
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@ -1,7 +1,7 @@
/*
* A Message Box Class
* Nana C++ Library(http://www.nanapro.org)
* Copyright(C) 2003-2017 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

14
source/gui/widgets/group.cpp
View File

@ -264,15 +264,22 @@ namespace nana{
drawing dw(*this);
//When the group is resized, the drawing is called before moving the caption, but
//the drawing of group requires the lastest position of caption for gradual rectangle.
//For the requirement, a move event handler is required for listning the change of caption's position.
impl_->caption.events().move([this](const arg_move& arg){
if (align::left != impl_->caption_align)
API::refresh_window(*this);
});
// This drawing function is owner by the onwer of dw (the outer panel of the group widget), not by dw !!
dw.draw([this](paint::graphics& graph)
{
auto gap_px = impl_->gap - 1;
graph.rectangle(true, API::bgcolor(this->parent()));
auto const top_round_line = static_cast<int>(impl_->caption_dimension.height) / 2;
graph.rectangle(true, API::bgcolor(this->parent()));
graph.round_rectangle(rectangle(point(gap_px, top_round_line),
nana::size(graph.width() - 2 * gap_px, graph.height() - top_round_line - gap_px)
),
@ -281,11 +288,10 @@ namespace nana{
auto opt_r = API::window_rectangle(impl_->caption);
if (opt_r)
{
rectangle grad_r{ opt_r->position(), nana::size{ opt_r->width, static_cast<unsigned>(top_round_line - opt_r->y) } };
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.x -= 2;
grad_r.width += 4;
graph.gradual_rectangle(grad_r,
API::bgcolor(this->parent()), this->bgcolor(), true