[API] Implement ImGuiFileDialog extension (#89)
* Initial setup for ImGuiFileDialog extension * Need to resolve linker errors. Working on PaneFun callback. * Remove jni callback code that is not compiling to expose linker error. * Callbacks for paneFun not yet implemented. Linker error still present, seems that some header is being included multiple times. * Fixed linker errors. Added example for demo. * Add support for multiple callbacks * Callbacks work
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Trevor Flynn authored and 
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package imgui.extension.imguifiledialog;
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import imgui.extension.imguifiledialog.callback.ImGuiFileDialogPaneFun;
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import java.util.HashMap;
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/**
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* ImGuiFileDialog extension for ImGui
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* Repo: https://github.com/aiekick/ImGuiFileDialog
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*/
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public final class ImGuiFileDialog {
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private ImGuiFileDialog() {
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}
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/*JNI
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#include "_imguifiledialog.h"
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jobject imgfdPaneFunCallback = NULL;
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const void paneFunCallback(const char* filter, void* user_data, bool* can_we_continue) {
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if (imgfdPaneFunCallback != NULL) {
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JNIEnv* env = Jni::GetEnv();
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std::string vKey = ImGuiFileDialog::Instance()->GetOpenedKey();
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jlong ret_user_datas = reinterpret_cast<jlong>(user_data);
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Jni::CallImGuiFileDialogPaneFun(env, imgfdPaneFunCallback, filter, ret_user_datas, *can_we_continue);
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}
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}
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#define IMGFD_PANE_FUN_METHOD_TMPL()\
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if (imgfdPaneFunCallback != NULL) {\
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env->DeleteGlobalRef(imgfdPaneFunCallback);\
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}\
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imgfdPaneFunCallback = env->NewGlobalRef(vSidePane);
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*/
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/**
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* open simple dialog (path and fileName can be specified)
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*
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* @param vKey key dialog
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* @param vTitle title
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* @param vFilters filters
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* @param vPath path
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* @param vFileName default file name
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* @param vCountSelectionMax count selection max
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* @param vUserDatas user datas (can be retrieved in pane)
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* @param vFlags ImGuiFileDialogFlags
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*/
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public static native void openDialog(String vKey, String vTitle, String vFilters, String vPath, String vFileName,
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int vCountSelectionMax, long vUserDatas, int vFlags); /*
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ImGuiFileDialog::Instance()->OpenDialog(vKey, vTitle, vFilters, vPath, vFileName, vCountSelectionMax, reinterpret_cast<void*>(vUserDatas), vFlags);
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*/
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/**
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* open simple modal (path and fileName can be specified)
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*
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* @param vKey key dialog
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* @param vTitle title
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* @param vFilters filters
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* @param vPath path
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* @param vFileName default file name
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* @param vCountSelectionMax count selection max
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* @param vUserDatas user datas (can be retrieved in pane)
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* @param vFlags ImGuiFileDialogFlags
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*/
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public static native void openModal(String vKey, String vTitle, String vFilters, String vPath, String vFileName,
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int vCountSelectionMax, long vUserDatas, int vFlags); /*
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ImGuiFileDialog::Instance()->OpenModal(vKey, vTitle, vFilters, vPath, vFileName, vCountSelectionMax, reinterpret_cast<void*>(vUserDatas), vFlags);
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*/
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/**
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* open simple modal (path and filename are obtained from filePathName)
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*
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* @param vKey key dialog
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* @param vTitle title
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* @param vFilters filters
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* @param vFilePathName file path name (will be decomposed in path and fileName)
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* @param vCountSelectionMax count selection max
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* @param vUserDatas user datas (can be retrieved in pane)
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* @param vFlags ImGuiFileDialogFlags
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*/
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public static native void openModal(String vKey, String vTitle, String vFilters, String vFilePathName,
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int vCountSelectionMax, long vUserDatas, int vFlags); /*
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ImGuiFileDialog::Instance()->OpenModal(vKey, vTitle, vFilters, vFilePathName, vCountSelectionMax, reinterpret_cast<void*>(vUserDatas), vFlags);
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*/
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/**
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* open modal with custom right pane (path and fileName can be specified)
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*
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* @param vKey key dialog
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* @param vTitle title
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* @param vFilters filters
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* @param vPath path
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* @param vFileName default file name
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* @param vSidePane side pane
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* @param vSidePaneWidth side pane width
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* @param vCountSelectionMax count selection max
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* @param vUserDatas user datas (can be retrieved in pane)
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* @param vFlags ImGuiFileDialogFlags
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*/
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public static native void openModal(String vKey, String vTitle, String vFilters, String vPath, String vFileName, ImGuiFileDialogPaneFun vSidePane,
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float vSidePaneWidth, int vCountSelectionMax, long vUserDatas, int vFlags); /*
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IMGFD_PANE_FUN_METHOD_TMPL()
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ImGuiFileDialog::Instance()->OpenModal(vKey, vTitle, vFilters, vPath, vFileName, paneFunCallback, vSidePaneWidth, vCountSelectionMax, reinterpret_cast<void*>(vUserDatas), vFlags);
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*/
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/**
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* open modal with custom right pane (path and filename are obtained from filePathName)
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*
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* @param vKey key dialog
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* @param vTitle title
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* @param vFilters filters
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* @param vFilePathName file path name (will be decomposed in path and fileName)
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* @param vSidePane side pane
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* @param vSidePaneWidth side pane width
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* @param vCountSelectionMax count selection max
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* @param vUserDatas user datas (can be retrieved in pane)
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* @param vFlags ImGuiFileDialogFlags
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*/
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public static native void openModal(String vKey, String vTitle, String vFilters, String vFilePathName, ImGuiFileDialogPaneFun vSidePane,
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float vSidePaneWidth, int vCountSelectionMax, long vUserDatas, int vFlags); /*
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IMGFD_PANE_FUN_METHOD_TMPL()
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ImGuiFileDialog::Instance()->OpenModal(vKey, vTitle, vFilters, vFilePathName, paneFunCallback, vSidePaneWidth, vCountSelectionMax, reinterpret_cast<void*>(vUserDatas), vFlags);
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*/
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/**
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* Display / Close dialog form
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* Display the dialog. return true if a result was obtained (Ok or not)
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*
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* @param vKey key dialog to display (if not the same key as defined by OpenDialog/Modal => no opening)
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* @param vFlags ImGuiWindowFlags
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* @param vMinSizeX minimal size constraint for the ImGuiWindow
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* @param vMinSizeY minimal size constraint for the ImGuiWindow
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* @param vMaxSizeX maximal size constraint for the ImGuiWindow
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* @param vMaxSizeY maximal size constraint for the ImGuiWindow
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* @return true if a result was obtained (Ok or not)
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*/
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public static native boolean display(String vKey, int vFlags, float vMinSizeX, float vMinSizeY, float vMaxSizeX, float vMaxSizeY); /*
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return ImGuiFileDialog::Instance()->Display(vKey, vFlags, ImVec2(vMinSizeX, vMinSizeY), ImVec2(vMaxSizeX, vMaxSizeY));
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*/
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/**
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* close dialog
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*/
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public static native void close(); /*
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ImGuiFileDialog::Instance()->Close();
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*/
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/**
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* say if the dialog key was already opened this frame
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*
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* @param vKey key dialog
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* @return if the dialog key was already opened this frame
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*/
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public static native boolean wasOpenedThisFrame(String vKey); /*
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return ImGuiFileDialog::Instance()->WasOpenedThisFrame(vKey);
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*/
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/**
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* say if the dialog was already opened this frame
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*
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* @return if the dialog was already opened this frame
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*/
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public static native boolean wasOpenedThisFrame(); /*
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return ImGuiFileDialog::Instance()->WasOpenedThisFrame();
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*/
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/**
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* say if the key is opened
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*
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* @param vKey key dialog
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* @return if the key is opened
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*/
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public static native boolean isOpened(String vKey); /*
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return ImGuiFileDialog::Instance()->IsOpened(vKey);
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*/
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/**
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* say if the dialog is opened somewhere
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*
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* @return if the dialog is opened somewhere
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*/
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public static native boolean isOpened(); /*
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return ImGuiFileDialog::Instance()->IsOpened();
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*/
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/**
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* return the dialog key who is opened, return nothing if not opened
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*
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* @return the dialog key who is opened or nothing is not opened
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*/
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public static native String getOpenedKey(); /*
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return env->NewStringUTF(ImGuiFileDialog::Instance()->GetOpenedKey().c_str());
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*/
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/**
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* true: Dialog Closed with Ok result / false: Dialog closed with cancel result
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*
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* @return True if the dialog closed with Ok result, or false with cancel result
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*/
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public static native boolean isOk(); /*
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return ImGuiFileDialog::Instance()->IsOk();
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*/
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/**
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* Open File behavior : will return selection via a map<FileName, FilePathName>
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* <p>
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* For example, if a file is selected, say test.txt. Then the key value pair will be:
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* 'test.txt', '/some/path/to/test.txt'
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*
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* @return Map of FileName to FilePathName in key,value pair
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*/
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public static native HashMap<String, String> getSelection(); /*
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//Get the map from ImGuiFileDialog
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std::map<std::string, std::string> mMap = ImGuiFileDialog::Instance()->GetSelection();
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env->PushLocalFrame(mMap.size() * 2); // Expands stack size to not overflow
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//Get reference to java's HashMap
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jclass hashMapClass = env->FindClass("java/util/HashMap");
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jmethodID hashMapInit = env->GetMethodID(hashMapClass, "<init>", "(I)V");
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jobject hashMapObj = env->NewObject(hashMapClass, hashMapInit, mMap.size());
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jmethodID hashMapPut = env->GetMethodID(hashMapClass, "put",
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"(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
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//Copy key,value pairs from map to hashmap
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for (auto it : mMap)
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{
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env->CallObjectMethod(hashMapObj, hashMapPut,
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env->NewStringUTF(it.first.c_str()),
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env->NewStringUTF(it.second.c_str())
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);
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}
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env->PopLocalFrame(hashMapObj); //Cleanup stack
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return hashMapObj;
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*/
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/**
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* Save File behavior : will always return the content of the field with current filter extention and current path
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*/
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public static native String getFilePathName(); /*
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return env->NewStringUTF(ImGuiFileDialog::Instance()->GetFilePathName().c_str());
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*/
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/**
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* Save File behavior : will always return the content of the field with current filter extension
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*
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* @return the content of the field with current filter extension
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*/
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public static native String getCurrentFileName(); /*
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return env->NewStringUTF(ImGuiFileDialog::Instance()->GetCurrentFileName().c_str());
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*/
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/**
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* will return current path
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*
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* @return the current path
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*/
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public static native String getCurrentPath(); /*
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return env->NewStringUTF(ImGuiFileDialog::Instance()->GetCurrentPath().c_str());
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*/
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/**
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* will return selected filter
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*
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* @return the selected filter
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*/
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public static native String getCurrentFilter(); /*
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return env->NewStringUTF(ImGuiFileDialog::Instance()->GetCurrentFilter().c_str());
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*/
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/**
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* will return user datas sent with Open Dialog/Modal
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* <p>
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* Can be used to pass a long value to the dialog and get the value back.
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* This long value can be a pointer to a native data structure.
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*
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* @return user datas sent with Open Dialog/Modal
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*/
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public static native long getUserDatas(); /*
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return reinterpret_cast<jlong>(ImGuiFileDialog::Instance()->GetUserDatas());
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*/
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}
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+5
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package imgui.extension.imguifiledialog.callback;
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public abstract class ImGuiFileDialogPaneFun {
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public abstract void paneFun(String filter, long userDatas, boolean canContinue);
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}
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+40
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package imgui.extension.imguifiledialog.flag;
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public final class ImGuiFileDialogFlags {
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private ImGuiFileDialogFlags() {
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}
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public static final int None = 0;
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/**
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* show confirm to overwrite dialog
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*/
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public static final int ConfirmOverwrite = (1 << 0);
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/**
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* dont show hidden file (file starting with a .)
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*/
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public static final int DontShowHiddenFiles = (1 << 1);
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/**
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* disable the create directory button
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*/
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public static final int DisableCreateDirectoryButton = (1 << 2);
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/**
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* hide column file type
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*/
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public static final int HideColumnType = (1 << 3);
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/**
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* hide column file size
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*/
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public static final int HideColumnSize = (1 << 4);
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/**
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* hide column file date
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*/
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public static final int HideColumnDate = (1 << 5);
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}
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