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FIX: a draw problem with item in listbox

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This commit is contained in:
qPCR4vir 2015-04-29 23:05:14 +02:00
parent 97db67b2a4
commit c6df0c4293
1 changed files with 31 additions and 26 deletions
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57
source/gui/widgets/listbox.cpp
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@ -2297,7 +2297,7 @@ namespace nana
void header_seq(std::vector<size_type> &seqs, unsigned lister_w)const
{
int x = - (scroll.offset_x);
for(auto hd : header.cont())
for(const auto& hd : header.cont())
{
if(false == hd.visible) continue;
x += hd.pixels;
@ -2711,7 +2711,9 @@ namespace nana
unsigned header_w = essence_->header.pixels();
essence_->graph->set_color(bgcolor);
if(header_w - essence_->scroll.offset_x < rect.width)
essence_->graph->rectangle(rectangle{ rect.x + static_cast<int>(header_w)-essence_->scroll.offset_x, rect.y, rect.width - (header_w - essence_->scroll.offset_x), rect.height }, true);
essence_->graph->rectangle(rectangle{ point(rect.x + static_cast<int>(header_w)-essence_->scroll.offset_x, rect.y),
size(static_cast<int>(rect.width) + essence_->scroll.offset_x - static_cast<int>(header_w), rect.height) },
true);
es_lister & lister = essence_->lister;
//The Tracker indicates the item where mouse placed.
@ -2739,12 +2741,12 @@ namespace nana
auto state = item_state::normal;
//Here draws a root categ or a first drawing is not a categ.
//Here we draw the root categ (0) or a first item if the first drawing is not a categ.(item!=npos))
if(idx.cat == 0 || !idx.is_category())
{
if (idx.cat == 0 && idx.is_category())
if (idx.cat == 0 && idx.is_category()) // the 0 cat
{
essence_->scroll.offset_y_dpl.item = 0;
essence_->scroll.offset_y_dpl.item = 0; // no, we draw the first item of cat 0, not the 0 cat itself
idx.item = 0;
}
@ -2837,7 +2839,7 @@ namespace nana
void _m_draw_item(const item_t& item, int x, int y, int txtoff, unsigned width, const nana::rectangle& r, const std::vector<size_type>& seqs, nana::color bgcolor, nana::color fgcolor, item_state state) const
{
if (item.flags.selected)
if (item.flags.selected) // fetch the "def" colors
bgcolor = essence_->scheme_ptr->item_selected;
else if (!item.bgcolor.invisible())
bgcolor = item.bgcolor;
@ -2846,10 +2848,10 @@ namespace nana
fgcolor = item.fgcolor;
auto graph = essence_->graph;
if (item_state::highlighted == state)
if (item_state::highlighted == state) // and blend it if "highlighted"
{
if (item.flags.selected)
bgcolor = bgcolor.blend(colors::black, 0.98);
bgcolor = bgcolor.blend(colors::black, 0.98); // or "selected"
else
bgcolor = bgcolor.blend(essence_->scheme_ptr->item_selected, 0.7);
}
@ -2865,20 +2867,22 @@ namespace nana
unsigned extreme_text = x;
bool first = true;
for(auto index : seqs)
for(size_type display_order{0}; display_order < seqs.size(); ++display_order) // get the cell (column) index in the order headers are displayed
{
const auto & header = essence_->header.column(index);
auto index = seqs[display_order];
const auto & header = essence_->header.column(index); // deduce the corresponding header which is in a kind of dislay order
auto it_bgcolor = bgcolor;
if ((item.cells.size() > index) && (header.pixels > 5))
if ((item.cells.size() > index) && (header.pixels > 5)) // process only if the cell is visible
{
auto cell_txtcolor = fgcolor;
auto & m_cell = item.cells[index];
nana::size ts = graph->text_extent_size(m_cell.text);
nana::size ts = graph->text_extent_size(m_cell.text); // precalcule text geometry
if (m_cell.custom_format && (!m_cell.custom_format->bgcolor.invisible()))
if (m_cell.custom_format && (!m_cell.custom_format->bgcolor.invisible())) // adapt to costum format if need
{
it_bgcolor = m_cell.custom_format->bgcolor;
it_bgcolor = m_cell.custom_format->bgcolor;
if (item.flags.selected)
it_bgcolor = it_bgcolor.blend( bgcolor , 0.5) ;
if (item_state::highlighted == state)
@ -2891,7 +2895,7 @@ namespace nana
}
int ext_w = 5;
if(first && essence_->checkable)
if(first && essence_->checkable) // draw the checkbox if need, only before the first column (display_order=0 ?)
{
ext_w += 18;
@ -2913,7 +2917,7 @@ namespace nana
crook_renderer_.draw(*graph, bgcolor, fgcolor, essence_->checkarea(item_xpos, y), estate);
}
if ((0 == index) && essence_->if_image)
if ((0 == index) && essence_->if_image) // draw the image if need, ??only before the first column?? (display_order=0 ?)
{
if (item.img)
{
@ -2926,23 +2930,24 @@ namespace nana
}
graph->set_text_color(cell_txtcolor);
graph->string(point{ item_xpos + ext_w, y + txtoff }, m_cell.text);
graph->string(point{ item_xpos + ext_w, y + txtoff }, m_cell.text); // draw full text of the cell index (column)
if (ts.width + ext_w > header.pixels)
if (ts.width + ext_w > header.pixels) // it was an excess
{
//The text is painted over the next subitem
int xpos = item_xpos + header.pixels - essence_->suspension_width;
//The text is painted over the next subitem // here beging the ...
int xpos = item_xpos + static_cast<int>(header.pixels) - static_cast<int>(essence_->suspension_width);
graph->set_color(it_bgcolor);
graph->rectangle(rectangle{ xpos, y + 2, essence_->suspension_width, essence_->item_size - 4 }, true);
graph->set_color(it_bgcolor); // litter rect with the item bg end ...
graph->rectangle(rectangle{ xpos, y + 2, essence_->suspension_width, essence_->item_size - 4 }, true);
graph->set_text_color(cell_txtcolor);
graph->string(point{ xpos, y + 2 }, STR("..."));
//Erase the part that over the next subitem.
if (index + 1 < seqs.size())
if ( display_order + 1 < seqs.size() ) // this is not the last column
{
graph->set_color(bgcolor);
graph->rectangle(rectangle{item_xpos + static_cast<int>(header.pixels), y + 2, ts.width + ext_w - header.pixels, essence_->item_size - 4}, true);
graph->set_color(bgcolor); // we need to erase the excess, because some cell may not draw text over
graph->rectangle(rectangle{item_xpos + static_cast<int>(header.pixels), y + 2,
ts.width + ext_w - header.pixels, essence_->item_size - 4}, true);
}
extreme_text = std::max (extreme_text, item_xpos + ext_w + ts.width);
}
@ -2951,7 +2956,7 @@ namespace nana
graph->line({ item_xpos - 1, y }, { item_xpos - 1, y + static_cast<int>(essence_->item_size) - 1 }, { 0xEB, 0xF4, 0xF9 });
item_xpos += header.pixels;
if (index + 1 >= seqs.size() && static_cast<int>(extreme_text) > item_xpos)
if (display_order + 1 >= seqs.size() && static_cast<int>(extreme_text) > item_xpos)
{
graph->set_color(item.bgcolor);
graph->rectangle(rectangle{item_xpos , y + 2, extreme_text - item_xpos, essence_->item_size - 4}, true);