Copy selected rows of a table to a model

Panoss

This post is deleted!

Panoss

I create a QStandardItem . How do I insert it in selected_rows_model?

QItemSelectionModel *selectionModel = ui.devices_finder_tbl->selectionModel();

QModelIndexList list = selectionModel->selectedRows();

for(int i = 0; i < list.size(); i++)
{
  QModelIndex index = list.at(i);
  QStandardItem  *qsti = new QStandardItem(index.data().toString());
  selected_rows_model->???
}

dheerendra

use setItem(int row, int column, QStandardItem *item) method.

Panoss

As row I use the rowCount().

row = selected_rows_model->rowCount();
selected_rows_model->setItem(row, column, qsti);

But as column? What should I use?

VRonin

Again, you don't need a new model, you need a proxy. While I still suggest KSelectionProxyModel (it's super easy to build with cmake and link) an alternative way is:

const int selectedRole = Qt::UserRole + 124;
connect(ui.devices_finder_tbl->selectionModel(),&QItemSelectionModel::selectionChanged,[=](const QItemSelection &selected, const QItemSelection &deselected)->void{
const QModelIndexList selectedIdx = selected.indexes();
const QModelIndexList deselectedIdx = deselected.indexes();
for(const QModelIndex& singleIdx : selectedIdx)
ui.devices_finder_tbl->model()->setData(ui.devices_finder_tbl->model()->index(singleIdx.row(),0,singleIdx.parent()),1,selectedRole);
for(const QModelIndex& singleIdx : deselectedIdx )
ui.devices_finder_tbl->model()->setData(ui.devices_finder_tbl->model()->index(singleIdx.row(),0,singleIdx.parent()),QVariant(),selectedRole);
});

QSortFilterProxyModel* selected_rows_model=new QSortFilterProxyModel(this);
selected_rows_model->setFilterRole(selectedRole);
selected_rows_model->setFilterFixedString("1");
selected_rows_model->setsourceModel(ui.devices_finder_tbl->model());

Panoss

@VRonin said in Copy selected rows of a table to a model:

Again, you don't need a new model, you need a proxy. While I still suggest KSelectionProxyModel

I tried it,but I had to include KSelectionProxyModel.h, KSelectionProxyModel.cpp, kdemacros.h etc etc. (and find - create these files)
Every time I added a file, ten more were needed.
I 'll try your solution.

VRonin

For reference, to build the module containing KSelectionProxyModel on windows with MSVC:

install git
install cmake
clone the repository git://anongit.kde.org/kitemmodels.git
open the developer console (qtenv2.bat and vcvarsall.bat)
run

set KDELIBPATH = C:\KDE
mkdir build
cd build
cmake -G "NMake Makefiles" -DCMAKE_DEBUG_POSTFIX=d -DCMAKE_INSTALL_PREFIX=%KDELIBPATH% -DCMAKE_BUILD_TYPE=DEBUG ../
cmake --build .
cmake --build . --target install
cmake -G "NMake Makefiles" -DCMAKE_INSTALL_PREFIX=%KDELIBPATH% -DCMAKE_BUILD_TYPE=RELEASE ../
cmake --build .
cmake --build . --target install

this will install the module in C:\KDE

to link it, in your project add to the .pro file:

LIBS += -LC:/KDE/lib
INCLUDEPATH +=  C:/KDE/include/KF5/KItemModels
CONFIG(release, debug|release) {
LIBS += -lKF5ItemModels
}
CONFIG(debug, debug|release) {
LIBS += -lKF5ItemModelsd
}

to install in other platforms/compilers you'll need to change the cmake generator (the part after -G) a list can be found here: https://cmake.org/cmake/help/v3.0/manual/cmake-generators.7.html

Panoss

VRonin thank you, but I 'd rather live without KDE :).
I think it's too much trouble for something very simple.

Panoss

I get an error:

error: C2143: syntax error : missing ',' before ':'

at line

for(const QModelIndex &singleIdx : selectedIdx)

VRonin

try with foreach(const QModelIndex &singleIdx , selectedIdx)

VRonin thank you, but I 'd rather live without KDE :).
I think it's too much trouble for something very simple.

We agree to disagree then

Panoss

@VRonin I decided to follow your advice :) and try KDE:

I installed git in G:\Program Files\Git.
I installed cmake in G:\Program Files\CMake (and I put the G:\Program Files\CMake\bin in the PATH variable).
I cloned the repository git://anongit.kde.org/kitemmodels.git in G:/kitemmodels
I opened the developer console (qtenv2.bat )
Here, I don't understand what you mean by "and vcvarsall.bat", isn't my developer console the:
G:\Qt\Qt5.0.2\5.0.2\msvc2010\bin\qtenv2.bat?
I run (in developer console, my drive letter is G:)

set KDELIBPATH = G:\KDE
mkdir build
cd build
cmake -G "NMake Makefiles" -DCMAKE_DEBUG_POSTFIX=d -DCMAKE_INSTALL_PREFIX=%KDELIBPATH% -DCMAKE_BUILD_TYPE=DEBUG ../

Here I get the error: "CMAke error: the source directory G:/Qt/Qt5.0.2/5.0.2/msvc2010 does not appear to contain CMakeLists.txt".

VRonin

I installed git in G:\Program Files\Git.

I installed cmake in G:\Program Files\CMake (and I put the G:\Program Files\CMake\bin in the PATH variable).

I cloned the repository git://anongit.kde.org/kitemmodels.git in G:/kitemmodels

I opened the developer console (qtenv2.bat )

All good

Here, I don't understand what you mean by "and vcvarsall.bat", isn't my developer console the:
G:\Qt\Qt5.0.2\5.0.2\msvc2010\bin\qtenv2.bat?

What compiler are you using? my guide is for MSVC, when you call qtenv2.bat for an MSVC compiler it prints out a reminder "Don't forget to run vcvarsall", that is the compiler environment setup, for MSVC2013 it's somewhere looking like C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat here you have pass an extra argument to determine the platform, for example C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat x86 or C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat amd64

I run (in developer console, my drive letter is G:)
set KDELIBPATH = G:\KDE
mkdir build
cd build
cmake -G "NMake Makefiles" -DCMAKE_DEBUG_POSTFIX=d -DCMAKE_INSTALL_PREFIX=%KDELIBPATH% -DCMAKE_BUILD_TYPE=DEBUG ../
Here I get the error: "CMAke error: the source directory G:/Qt/Qt5.0.2/5.0.2/msvc2010 does not appear to contain CMakeLists.txt".

you just are in the wrong folder, use cd G:\kitemmodels