Classic Treeview

johnnyghost Freshman Member Posts: 49 OS: Windows 11 23h2 CPU: Intel Core i7 RAM: 16gb GPU: Geforce RTX 3070	Classic Treeview Jan 7, 2024 13:37:11 GMT -8 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by johnnyghost on Jan 7, 2024 13:37:11 GMT -8 That is bizarre. I don't know then what was causing the problem for me.

waldemar21214
Freshman Member

Posts: 73
OS: Windows 10
Theme: Classic
CPU: i5-12400f
RAM: 16 GB DDR4 3600mhz
GPU: PNY 3060TI

Classic Treeview Jan 8, 2024 5:31:55 GMT -8

Quote

Post by waldemar21214 on Jan 8, 2024 5:31:55 GMT -8

Released update 0.2

Fixed a bug with drawing lines when LinesAtRoot is enabled.
Added a 3D border to the X button when mouse is hovering over it.
Added a option not to draw +/- buttons so that the mod can be used when themes are enabled.
Fixed the treeview being drawn over in certain circumstances.

anixx Moderator Posts: 1,886	Classic Treeview Jan 8, 2024 16:55:21 GMT -8 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by anixx on Jan 8, 2024 16:55:21 GMT -8 If you push the button but move the mouse out, the button remains pushed on hover even if you do not click it.

yingying814
New Member

Posts: 7

Classic Treeview Jan 8, 2024 21:08:40 GMT -8

Quote

Post by yingying814 on Jan 8, 2024 21:08:40 GMT -8

It works perfectly when I enabled "Lines At Root".

Otherwise, clicking the plus / minus button does nothing.

Also, I noticed that for Windows 10 (I am using 20H2), the spacing between items on the pane is much much wider than Windows 95/98, and I found that it can be modified by going to Classic explorer setting, under navigation Pane tab, go to "Tree item spacing" and set it to -1.

However, it seems that I cannot precisely set the spacing in particular px.

And it is really nice that the mod can disable the horrible appearance of "full row selection" on the pane

Last Edit: Jan 8, 2024 21:10:38 GMT -8 by yingying814

clara Sophomore Member Posts: 112	Classic Treeview Jan 9, 2024 3:42:58 GMT -8 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by clara on Jan 9, 2024 3:42:58 GMT -8 God, this is beautiful. Worked pretty much flawlessly for me, gad some padding issues on start, but enabling "Lines on root" fixed this. Upper grey area flashes white when window updates but i think it is normal. Amazing job.

waldemar21214
Freshman Member

Posts: 73
OS: Windows 10
Theme: Classic
CPU: i5-12400f
RAM: 16 GB DDR4 3600mhz
GPU: PNY 3060TI

Classic Treeview Jan 9, 2024 4:30:14 GMT -8

Quote

Post by waldemar21214 on Jan 9, 2024 4:30:14 GMT -8

Jan 8, 2024 16:55:21 GMT -8 anixx said:

If you push the button but move the mouse out, the button remains pushed on hover even if you do not click it.

Move the mouse out the button bounds, or out the NamespaceTreeControl window (treeview + folder pane with the button)? The "button" isn't actually a winapi button control, I just made the code draw a 3d frame in the correct spot under certain conditions. Anyways, I'll investigate your report and propably have it fixed in the next update. Other than that, does it work correctly and not hang explorer.exe?

Jan 8, 2024 21:08:40 GMT -8 yingying814 said:

It works perfectly when I enabled "Lines At Root".

Otherwise, clicking the plus / minus button does nothing.

That's weird, can you try using WinSpy to see if TVS_HASBUTTONS style is enabled on the treeview control when my mod is used? My mod relies on this style being set, because it doesn't actually have any code to handle clicks on the +/- buttons, the control does it itself.

Jan 9, 2024 3:42:58 GMT -8 clara said:

God, this is beautiful. Worked pretty much flawlessly for me, gad some padding issues on start, but enabling "Lines on root" fixed this. Upper grey area flashes white when window updates but i think it is normal. Amazing job.

Your padding issues were propably caused by the fact that you did not set the "Full size offsets for subfolders" in openshell explorer settings. The folder band is flashing because micr (puke)

soft code tries to fight my mod when window resizing occurs. But my mod is so strong and awesome that it always wins in the end. 8-)

clara
Sophomore Member

Posts: 112

Classic Treeview Jan 9, 2024 8:42:35 GMT -8

Quote

Post by clara on Jan 9, 2024 8:42:35 GMT -8

Jan 9, 2024 4:30:14 GMT -8 waldemar21214 said:

Your padding issues were propably caused by the fact that you did not set the "Full size offsets for subfolders" in openshell explorer settings.

Actually no, not the case at all. The issue wasn't with the offset of the subfolders, but the offset of the tree itself, collapse/expand buttons of root tree items were half obsured by the clentedge, and changing subfolder offsets is completely unrelated to this.

Edit: looked at how it was in win2000, which i am kinda sort of aiming for but not really, im a fool. your suggested layout is how it was there originally, gonna switch to that.

Last Edit: Jan 9, 2024 8:47:41 GMT -8 by clara

Cynosphere
Freshman Member

Posts: 38

OS: Windows 10 Home 22H2
Theme: Classic (Scheme: Amora Focus)
CPU: AMD Ryzen 7 3700X
RAM: 32 GB
GPU: AMD Radeon RX 7900 XT

Classic Treeview Jan 9, 2024 19:00:07 GMT -8

Quote

Post by Cynosphere on Jan 9, 2024 19:00:07 GMT -8

I got nitpicky and made it more accurate and also added an option to draw the lines using the highlight color for better visibility on dark themes
Comparison of ReactOS folder view (left) and the mod (right)

Comparison of ReactOS folder view (left) and the mod (right)

SPOILER: Click to show

{Spoiler}


// ==WindhawkMod==
// @id              classic-explorer-treeview
// @name            Classic Explorer Treeview
// @description     Modifies Folder Treeview in file explorer so as to make it look more classic.
// @version         0.3
// @author          Waldemar
// @github          https://github.com/CyprinusCarpio
// @include         explorer.exe
// @compilerOptions -lcomdlg32 -lcomctl32 -lgdi32 -lshlwapi -loleaut32
// ==/WindhawkMod==

// ==WindhawkModSettings==
/*
- FoldersText: Folders
  $name: Folders Pane Text
  $description: This is the text to be displayed on top of the folders pane.
- DrawLines: true
  $name: Draw Dotted Lines
  $description: Use TVS_HASLINES style. Disable for a more XP-like look.
- LinesAtRoot: false
  $name: Lines At Root
  $description: Use TVS_LINESATROOT style.
- DrawButtons: true
  $name: Draw +/- Buttons
  $description: Should the mod draw it's own +/- buttons.
- UseHighlight: false
  $name: Use Highlight color
  $description: Use highlight color instead of shadow color for drawing lines. May produce better results on some dark themes.
*/
// ==/WindhawkModSettings==

// ==WindhawkModReadme==
/*
# Classic Explorer Treeview

This mod changes the Explorer Treeview (otherwise known as Folder Pane or
Navigation Pane) to look more classic. It draws it's own Folder Band with a
functional X button. If you are using OpenShell, then you need to set the
correct settings for Classic Explorer in the Navigation Pane tab: Tree item
spacing -2, Full size offset for sub-folders. If you are using Windows 11 23H2,
then set the tree item spacing to -6, and enable compact spacing in the Explorer
folder settings.

This mod is WIP and may not work correctly.

# Changelog:
## 0.3
- Proper positioning and sizing of the folder band (Cynosphere)
- Proper close button "glyph" (Cynosphere)
- Draw bottom rebar line on the folder band (Cynosphere)
- Add option to use highlight color for drawing lines for better visibility on dark themes (Cynosphere)

## 0.2 
- Fixed a bug with drawing lines when LinesAtRoot is enabled.
- Added a 3D border to the X button when mouse is hovering over it.
- Added a option not to draw +/- buttons so that the mod can be used when themes are enabled.
- Fixed the treeview being drawn over in certain circumstances.

## 0.1 
- Initial release.
*/
// ==/WindhawkModReadme==

#include <commctrl.h>
#include <shlwapi.h>
#include <windhawk_api.h>
#include <windhawk_utils.h>
#include <windowsx.h>
#include <wingdi.h>

#include <string>
#include <vector>

enum NSCTExtraFlags { MOUSE_OVER_BUTTON = 1 << 0, MOUSE_PRESSED = 1 << 1 };

struct NSCTExtra {
    HWND hWnd;
    int eFlags = 0;

    NSCTExtra(HWND h) { hWnd = h; }
};

std::vector<NSCTExtra> g_subclassedNSTCs;
bool g_drawDottedLines = true;
bool g_linesAtRoot = false;
bool g_drawButtons = true;
bool g_useHighlight = false;
std::wstring g_foldersPaneText = L"Folders";

void DrawDottedLinesAndButtons(HWND hTree, HDC& hdc) {
    HTREEITEM hItem = TreeView_GetRoot(hTree);
    RECT rect;
    while (hItem != NULL) {
        TreeView_GetItemRect(hTree, hItem, &rect, TRUE);
        rect.left -= 33;
        rect.top += 6;
        TVITEM tvi;
        tvi.mask = TVIF_CHILDREN;
        tvi.hItem = hItem;

        bool isTopLevel = rect.left <= (g_linesAtRoot ? 10 : -10);

        if (g_drawDottedLines) {
            LOGBRUSH LogBrush;
            LogBrush.lbColor = GetSysColor(g_useHighlight ? COLOR_3DHIGHLIGHT : COLOR_3DSHADOW);
            LogBrush.lbStyle = PS_SOLID;
            HPEN hPen =
                ExtCreatePen(PS_COSMETIC | PS_ALTERNATE, 1, &LogBrush, 0, NULL);

            HPEN hOldPen = (HPEN)SelectObject(hdc, hPen);
            if (!isTopLevel) {
                HTREEITEM nextItem = TreeView_GetNextSibling(hTree, hItem);
                MoveToEx(hdc, rect.left + 4,
                         isTopLevel ? rect.top + 4 : rect.top - 4, NULL);
                if (nextItem != NULL) {
                    RECT nextItemRect;
                    TreeView_GetItemRect(hTree, nextItem, &nextItemRect, TRUE);
                    LineTo(hdc, rect.left + 4, nextItemRect.top + 5);
                } else {
                    LineTo(hdc, rect.left + 4, rect.bottom - 7);
                }
            }

            MoveToEx(hdc, rect.left + 6, rect.top + 4, NULL);
            LineTo(hdc, rect.left + 14, rect.top + 4);
            SelectObject(hdc, hOldPen);
            DeleteObject(hPen);
        }
        if (g_drawButtons && !(isTopLevel && !g_linesAtRoot) &&
            TreeView_GetItem(hTree, &tvi) && tvi.cChildren > 0) {
            UINT state = TreeView_GetItemState(hTree, hItem, TVIS_EXPANDED);

            HBRUSH brush = CreateSolidBrush(GetSysColor(COLOR_WINDOW));
            HBRUSH original = (HBRUSH)SelectObject(hdc, brush);
            RECT buttonRect;
            buttonRect.left = rect.left;
            buttonRect.top = rect.top;
            buttonRect.right = rect.left + 9;
            buttonRect.bottom = rect.top + 9;
            FillRect(hdc, &buttonRect, brush);
            DeleteObject(brush);
            brush = CreateSolidBrush(GetSysColor(g_useHighlight ? COLOR_3DHIGHLIGHT : COLOR_3DSHADOW));
            FrameRect(hdc, &buttonRect, brush);
            DeleteObject(brush);
            SelectObject(hdc, original);

            HPEN hPen = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_BTNTEXT));
            HPEN hOldPen = (HPEN)SelectObject(hdc, hPen);

            if (state & TVIS_EXPANDED) {
                MoveToEx(hdc, rect.left + 2, rect.top + 4, NULL);
                LineTo(hdc, rect.left + 7, rect.top + 4);
            } else {
                MoveToEx(hdc, rect.left + 2, rect.top + 4, NULL);
                LineTo(hdc, rect.left + 7, rect.top + 4);
                MoveToEx(hdc, rect.left + 4, rect.top + 2, NULL);
                LineTo(hdc, rect.left + 4, rect.top + 7);
            }

            SelectObject(hdc, hOldPen);
            DeleteObject(hPen);
        }

        HTREEITEM child = TreeView_GetChild(hTree, hItem);
        if (child != NULL) {
            hItem = child;
            continue;
        }

        HTREEITEM sibling = TreeView_GetNextSibling(hTree, hItem);
        if (sibling != NULL) {
            hItem = sibling;
            continue;
        }

        hItem = TreeView_GetNextVisible(hTree, hItem);
    }
}

LRESULT CALLBACK NSCSubclassProc(_In_ HWND hWnd,
                                 _In_ UINT uMsg,
                                 _In_ WPARAM wParam,
                                 _In_ LPARAM lParam,
                                 _In_ DWORD_PTR dwRefData) {
    switch (uMsg) {
        case WM_NOTIFY: {
            switch (((LPNMHDR)lParam)->code) {
                case NM_CUSTOMDRAW: {
                    HWND hTree =
                        FindWindowEx(hWnd, NULL, L"SysTreeView32", NULL);
                    LPNMTVCUSTOMDRAW pCustomDraw = (LPNMTVCUSTOMDRAW)lParam;
                    switch (pCustomDraw->nmcd.dwDrawStage) {
                        case CDDS_PREPAINT:
                            return CDRF_NOTIFYPOSTPAINT;
                        case CDDS_POSTPAINT:
                            DrawDottedLinesAndButtons(hTree,
                                                      pCustomDraw->nmcd.hdc);
                            return S_OK;
                            break;
                        default:
                            break;
                    }
                }
            }
        } break;
        case WM_PAINT: {
            HDC hdc = GetWindowDC(hWnd);
            PAINTSTRUCT ps;
            HBRUSH brush = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
            HBRUSH original = (HBRUSH)SelectObject(hdc, brush);

            BeginPaint(hWnd, &ps);

            RECT rect;
            GetClientRect(hWnd, &rect);
            long origBottom = rect.bottom;
            rect.bottom = rect.top + 20;

            FillRect(hdc, &rect, brush);

            long origTop = rect.top;

            // draw the bottom rebar line
            HBRUSH rebarLineTop = CreateSolidBrush(GetSysColor(COLOR_3DSHADOW));
            rect.top = origTop + 22;
            rect.bottom = rect.top + 1;
            FillRect(hdc, &rect, rebarLineTop);

            HBRUSH rebarLineBottom = CreateSolidBrush(GetSysColor(COLOR_3DHIGHLIGHT));
            rect.top += 1;
            rect.bottom += 1;
            FillRect(hdc, &rect, rebarLineBottom);

            long origLeft = rect.left;
            long origRight = rect.right;

            // draw the close button
            HBRUSH closeColor = CreateSolidBrush(GetSysColor(COLOR_BTNTEXT));

            // ##    ##
            rect.top = origTop + 7;
            rect.left = origRight - 17;
            rect.bottom = rect.top + 1;
            rect.right = rect.left + 2;
            FillRect(hdc, &rect, closeColor);

            rect.left += 6;
            rect.right += 6;
            FillRect(hdc, &rect, closeColor);

            //  ##  ##
            rect.top += 1;
            rect.bottom += 1;
            rect.left -= 1;
            rect.right -= 1;
            FillRect(hdc, &rect, closeColor);

            rect.left -= 4;
            rect.right -= 4;
            FillRect(hdc, &rect, closeColor);

            //   ####
            rect.top += 1;
            rect.bottom += 1;
            rect.left += 1;
            rect.right += 3;
            FillRect(hdc, &rect, closeColor);

            //    ##
            rect.top += 1;
            rect.bottom += 1;
            rect.left += 1;
            rect.right -= 1;
            FillRect(hdc, &rect, closeColor);

            // reset and draw last three lines in reverse cause easier math
            // ##    ##
            rect.top = origTop + 13;
            rect.left = origRight - 17;
            rect.bottom = rect.top + 1;
            rect.right = rect.left + 2;
            FillRect(hdc, &rect, closeColor);

            rect.left += 6;
            rect.right += 6;
            FillRect(hdc, &rect, closeColor);

            //  ##  ##
            rect.top -= 1;
            rect.bottom -= 1;
            rect.left -= 1;
            rect.right -= 1;
            FillRect(hdc, &rect, closeColor);

            rect.left -= 4;
            rect.right -= 4;
            FillRect(hdc, &rect, closeColor);

            //   ####
            rect.top -= 1;
            rect.bottom -= 1;
            rect.left += 1;
            rect.right += 3;
            FillRect(hdc, &rect, closeColor);

            rect.top = origTop;
            rect.bottom = origBottom;
            rect.left = origLeft;
            rect.right = origRight;

            SetTextColor(hdc, GetSysColor(COLOR_BTNTEXT));
            SetBkColor(hdc, GetSysColor(COLOR_BTNFACE));
            //TextOut(hdc, rect.right - 14, 0, L"x", 1);

            DrawEdge(hdc, &rect, EDGE_ETCHED, BF_RECT);

            int eFlags = 0;
            size_t s = g_subclassedNSTCs.size();
            for (size_t i = 0; i < s; i++) {
                if (hWnd == g_subclassedNSTCs[i].hWnd) {
                    eFlags = g_subclassedNSTCs[i].eFlags;
                    break;
                }
            }
            if (eFlags & MOUSE_OVER_BUTTON) {
                RECT buttonFrame;
                GetClientRect(hWnd, &buttonFrame);
                buttonFrame.left = buttonFrame.right - 23;
                buttonFrame.right = buttonFrame.right - 3;
                buttonFrame.bottom = buttonFrame.top + 19;
                buttonFrame.top = buttonFrame.top + 2;
                DrawEdge(
                    hdc, &buttonFrame,
                    eFlags & MOUSE_PRESSED ? BDR_SUNKENOUTER : BDR_RAISEDINNER,
                    BF_RECT);
            }

            NONCLIENTMETRICS ncm;
            ncm.cbSize = sizeof(NONCLIENTMETRICS);
            SystemParametersInfo(SPI_GETNONCLIENTMETRICS, 0, &ncm, 0);

            HFONT hFont = CreateFontIndirect(&ncm.lfMessageFont);
            SelectObject(hdc, hFont);
            SetTextColor(hdc, GetSysColor(COLOR_BTNTEXT));

            TextOut(hdc, 8, 5, g_foldersPaneText.c_str(),
                    g_foldersPaneText.length());

            SelectObject(hdc, original);
            EndPaint(hWnd, &ps);
            ReleaseDC(hWnd, hdc);
        } break;
        case WM_MOUSEMOVE: {
            int xPos = GET_X_LPARAM(lParam);
            int yPos = GET_Y_LPARAM(lParam);
            RECT rect;
            GetClientRect(hWnd, &rect);
            rect.left = rect.right - 23;
            rect.right -= 3;
            rect.bottom = rect.top + 19;
            rect.top += 2;
            bool mouseInside = false;
            if (xPos >= rect.left && xPos <= rect.right && yPos >= rect.top &&
                yPos <= rect.bottom) {
                mouseInside = true;
            }
            size_t s = g_subclassedNSTCs.size();
            for (size_t i = 0; i < s; i++) {
                if (hWnd == g_subclassedNSTCs[i].hWnd) {
                    if (mouseInside) {
                        InvalidateRect(hWnd, &rect, FALSE);
                        g_subclassedNSTCs[i].eFlags |= MOUSE_OVER_BUTTON;
                    } else if (g_subclassedNSTCs[i].eFlags & MOUSE_OVER_BUTTON){
                        g_subclassedNSTCs[i].eFlags &= ~MOUSE_OVER_BUTTON;
                        InvalidateRect(hWnd, &rect, FALSE);
                    }
                    break;
                }
            }

        } break;
        case WM_LBUTTONDOWN: {
            size_t s = g_subclassedNSTCs.size();
            for (size_t i = 0; i < s; i++) {
                if (hWnd == g_subclassedNSTCs[i].hWnd) {
                    RECT rect;
                    GetClientRect(hWnd, &rect);
                    rect.left = rect.right - 23;
                    rect.right -= 3;
                    rect.bottom = rect.top + 19;
                    rect.top += 2;
                    InvalidateRect(hWnd, &rect, FALSE);
                    g_subclassedNSTCs[i].eFlags |= MOUSE_PRESSED;
                    break;
                }
            }
        } break;
        case WM_LBUTTONUP: {
            size_t s = g_subclassedNSTCs.size();
            for (size_t i = 0; i < s; i++) {
                if (hWnd == g_subclassedNSTCs[i].hWnd &&
                    g_subclassedNSTCs[i].eFlags & MOUSE_PRESSED) {
                    g_subclassedNSTCs[i].eFlags &= ~MOUSE_PRESSED;
                    break;
                }
            }
            int xPos = GET_X_LPARAM(lParam);
            int yPos = GET_Y_LPARAM(lParam);
            RECT rect;
            GetClientRect(hWnd, &rect);
            rect.left = rect.right - 22;
            rect.right -= 3;
            rect.bottom = rect.top + 20;
            rect.top += 2;
            if (xPos >= rect.left && xPos <= rect.right && yPos >= rect.top &&
                yPos <= rect.bottom) {
                for (size_t i = 0; i < s; i++) {
                    if (hWnd == g_subclassedNSTCs[i].hWnd) {
                        g_subclassedNSTCs[i].eFlags &= ~MOUSE_OVER_BUTTON;
                        break;
                    }
                }
                static GUID SID_FrameManager = {
                    0x31e4fa78,
                    0x02b4,
                    0x419f,
                    {0x94, 0x30, 0x7b, 0x75, 0x85, 0x23, 0x7c, 0x77}};
                static GUID SID_PerBrowserPropertyBag = {
                    0xa3b24a0a,
                    0x7b68,
                    0x448d,
                    {0x99, 0x79, 0xc7, 0x00, 0x05, 0x9c, 0x3a, 0xd1}};
                static GUID GUIDIPropertyBag = {
                    0x55272a00,
                    0x42cb,
                    0x11ce,
                    {0x81, 0x35, 0x00, 0xaa, 0x00, 0x4b, 0xb8, 0x51}};
                static GUID GUIDIUnknown = {
                    0x00000000,
                    0x0000,
                    0x0000,
                    {0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46}};

                IOleWindow* browser = (IOleWindow*)SendMessage(
                    GetParent(GetParent(GetParent(GetParent(hWnd)))),
                    WM_USER + 7, 0, 0);
                browser->AddRef();
                IPropertyBag* bag;
                IUnknown* frame;
                IUnknown_QueryService(browser, SID_FrameManager, GUIDIUnknown,
                                      (void**)&frame);
                frame->AddRef();
                IUnknown_QueryService(frame, SID_PerBrowserPropertyBag,
                                      GUIDIPropertyBag, (void**)&bag);
                bag->AddRef();
                VARIANT val = {VT_EMPTY};
                VariantClear(&val);
                val.vt = VT_BOOL;
                val.boolVal = VARIANT_FALSE;
                bag->Write(L"PageSpaceControlSizer_Visible", &val);
                frame->Release();
                browser->Release();
                bag->Release();
            }
        } break;

        case WM_SIZE: {
            HWND treeview = FindWindowEx(hWnd, NULL, L"SysTreeView32", NULL);
            RECT rect;
            GetClientRect(GetParent(treeview), &rect);
            SetWindowPos(treeview, 0, 2, 24, rect.right - 4, rect.bottom - 24,
                         SWP_DRAWFRAME | SWP_NOZORDER);
            InvalidateRect(hWnd, &rect, true);
            return S_OK;
        } break;

        case WM_DESTROY:
            g_subclassedNSTCs.erase(std::remove_if(
                g_subclassedNSTCs.begin(), g_subclassedNSTCs.end(),
                [hWnd](NSCTExtra ne) { return ne.hWnd == hWnd; }));
            return 0;
            break;
    }

    return DefSubclassProc(hWnd, uMsg, wParam, lParam);
}

using CreateWindowExW_t = decltype(&CreateWindowExW);
CreateWindowExW_t pOriginalCreateWindowExW;
HWND WINAPI CreateWindowExWHook(DWORD dwExStyle,
                                LPCWSTR lpClassName,
                                LPCWSTR lpWindowName,
                                DWORD dwStyle,
                                int X,
                                int Y,
                                int nWidth,
                                int nHeight,
                                HWND hWndParent,
                                HMENU hMenu,
                                HINSTANCE hInstance,
                                LPVOID lpParam) {
    BOOL bTextualClassName = ((ULONG_PTR)lpClassName & ~(ULONG_PTR)0xffff) != 0;
    if (hWndParent != NULL && bTextualClassName &&
        wcsicmp(lpClassName, L"SysTreeView32") == 0) {
        wchar_t bufr[32];
        GetClassName(hWndParent, bufr, 32);

        if (lstrcmpW(bufr, L"NamespaceTreeControl") == 0) {
            dwExStyle |= WS_EX_COMPOSITED;
            dwStyle = TVS_HASBUTTONS | TVS_EDITLABELS | TVS_SHOWSELALWAYS |
                      WS_TABSTOP | WS_CLIPCHILDREN | WS_CLIPSIBLINGS |
                      WS_VISIBLE | WS_CHILD;
            if (g_linesAtRoot)
                dwStyle |= TVS_LINESATROOT;
            Y += 20;
            nHeight -= 20;

            HWND hWnd = pOriginalCreateWindowExW(
                dwExStyle, lpClassName, lpWindowName, dwStyle, X, Y, nWidth,
                nHeight, hWndParent, hMenu, hInstance, lpParam);

            TreeView_SetIndent(hWnd, 20);
            TreeView_SetItemHeight(hWnd, 6);

            return hWnd;
        }
    }

    HWND hWnd = pOriginalCreateWindowExW(dwExStyle, lpClassName, lpWindowName,
                                         dwStyle, X, Y, nWidth, nHeight,
                                         hWndParent, hMenu, hInstance, lpParam);

    if (bTextualClassName &&
        wcsicmp(lpClassName, L"NamespaceTreeControl") == 0) {
        if (WindhawkUtils::SetWindowSubclassFromAnyThread(hWnd, NSCSubclassProc,
                                                          NULL)) {
            g_subclassedNSTCs.push_back(NSCTExtra(hWnd));
        }
    }

    return hWnd;
}

typedef HRESULT (*INameSpaceTreeControl2__s_SetStateImageList_t)(
    struct _IMAGELIST*);
INameSpaceTreeControl2__s_SetStateImageList_t
    INameSpaceTreeControl2__s_SetStateImageList_orig;
HRESULT INameSpaceTreeControl2__s_SetStateImageList_Hook(
    struct _IMAGELIST* himagelist) {
    return S_OK;
}

typedef HRESULT (*INameSpaceTreeControl2__s_ApplyTopMargin_t)(void);
INameSpaceTreeControl2__s_ApplyTopMargin_t
    INameSpaceTreeControl2__s_ApplyTopMargin_orig;
HRESULT INameSpaceTreeControl2__s_ApplyTopMargin_Hook() {
    return S_OK;
}

BOOL Wh_ModInit() {
    Wh_Log(L"Classic Explorer Treeview Init");
    if (!Wh_SetFunctionHook((void*)CreateWindowExW, (void*)CreateWindowExWHook,
                            (void**)&pOriginalCreateWindowExW)) {
        Wh_Log(L"Failed to hook function CreateWindowExW");
        return FALSE;
    }

    HMODULE hExplorerFrame = GetModuleHandle(L"explorerframe.dll");

    WindhawkUtils::SYMBOL_HOOK hooks[] = {
        {{L"private: long __cdecl CNscTree::ApplyTopMargin(void)"},
         (void**)&INameSpaceTreeControl2__s_ApplyTopMargin_orig,
         (void*)INameSpaceTreeControl2__s_ApplyTopMargin_Hook,
         FALSE},
        {{L"public: virtual long __cdecl CNscTree::SetStateImageList(struct "
          L"_IMAGELIST *)"},
         (void**)&INameSpaceTreeControl2__s_SetStateImageList_orig,
         (void*)INameSpaceTreeControl2__s_SetStateImageList_Hook,
         FALSE}};

    if (!WindhawkUtils::HookSymbols(hExplorerFrame, hooks, 2)) {
        Wh_Log(L"Failed to hook CNscTree methods");
        return FALSE;
    }
    g_drawDottedLines = Wh_GetIntSetting(L"DrawLines");
    g_linesAtRoot = Wh_GetIntSetting(L"LinesAtRoot");
    g_drawButtons = Wh_GetIntSetting(L"DrawButtons");
    g_foldersPaneText = std::wstring(Wh_GetStringSetting(L"FoldersText"));
    g_useHighlight = Wh_GetIntSetting(L"UseHighlight");
    Wh_Log(L"Classic Explorer Treeview init completed successfully.");
    return TRUE;
}

void Wh_ModBeforeUninit(void) {
    Wh_Log(L"Classic Explorer Treeview Uninit");
    size_t s = g_subclassedNSTCs.size();
    Wh_Log(L"Removing subclasses from %i controls.", s);
    for (size_t i = 0; i < s; i++) {
        WindhawkUtils::RemoveWindowSubclassFromAnyThread(
            g_subclassedNSTCs[i].hWnd, NSCSubclassProc);
    }
}
void Wh_ModSettingsChanged(void) {
    g_drawDottedLines = Wh_GetIntSetting(L"DrawLines");
    g_linesAtRoot = Wh_GetIntSetting(L"LinesAtRoot");
    g_drawButtons = Wh_GetIntSetting(L"DrawButtons");
    g_foldersPaneText = std::wstring(Wh_GetStringSetting(L"FoldersText"));
    g_useHighlight = Wh_GetIntSetting(L"UseHighlight");
}

anixx
Moderator

Posts: 1,886

Classic Treeview Jan 10, 2024 5:50:12 GMT -8

Quote

Post by anixx on Jan 10, 2024 5:50:12 GMT -8

Jan 9, 2024 19:00:07 GMT -8 Cynosphere said:

SPOILER: Click to show

I got nitpicky and made it more accurate and also added an option to draw the lines using the highlight color for better visibility on dark them

In your modification I have a white strip under caption bar and to the left of the treeview:

Last Edit: Jan 10, 2024 5:53:23 GMT -8 by anixx

waldemar21214
Freshman Member

Posts: 73
OS: Windows 10
Theme: Classic
CPU: i5-12400f
RAM: 16 GB DDR4 3600mhz
GPU: PNY 3060TI

Classic Treeview Jan 10, 2024 6:37:52 GMT -8

Quote

Post by waldemar21214 on Jan 10, 2024 6:37:52 GMT -8

Jan 10, 2024 5:50:12 GMT -8 anixx said:

In your modification I have a white strip under caption bar and to the left of the treeview:

The white strip under the caption must have been a oversight. I fixed it and released the 0.3 with some fixes of my own, including a fix to the Close button problem you've reported.

As for that strip to the left, it's a problem with Windows 11 (1). It appears that the CNscTree is offset about 2px to the right and 3 px to the top, as compared to Windows 10. The same problem is visible on the screenshot in the first post. I think maybe this can be fixed on both 10 and 11 by modifying shellstyle.dll in a similar way it's done to remove the Organize bar. (2)

Errata:

1 - indeed it is, but it's now fixed in the mod

2 - the problem can manifest on both 10 and 11 and it comes from the FolderBand in shellstyle.dll being offset by -28px instead of -32px.

Last Edit: Feb 7, 2024 11:50:36 GMT -8 by waldemar21214

anixx
Moderator

Posts: 1,886

Classic Treeview Jan 10, 2024 6:46:23 GMT -8

Quote

Post by anixx on Jan 10, 2024 6:46:23 GMT -8

Jan 10, 2024 6:37:52 GMT -8 waldemar21214 said:

Jan 10, 2024 5:50:12 GMT -8 anixx said:

In your modification I have a white strip under caption bar and to the left of the treeview:

The white strip under the caption must have been a oversight. I fixed it and released the 0.3 with some fixes of my own, including a fix to the Close button problem you've reported.

As for that strip to the left, it's a problem with Windows 11. It appears that the CNscTree is offset about 2px to the right and 3 px to the top, as compared to Windows 10. The same problem is visible on the screenshot in the first post. I think maybe this can be fixed on both 10 and 11 by modifying shellstyle.dll in a similar way it's done to remove the Organize bar.

On the screenshot by clara there is no stripe to the left, and no stripe under the caption bar. Only a stripe to the right.

waldemar21214
Freshman Member

Posts: 73
OS: Windows 10
Theme: Classic
CPU: i5-12400f
RAM: 16 GB DDR4 3600mhz
GPU: PNY 3060TI

Classic Treeview Jan 10, 2024 7:03:46 GMT -8

Quote

Post by waldemar21214 on Jan 10, 2024 7:03:46 GMT -8

Jan 10, 2024 6:46:23 GMT -8 anixx said:

On the screenshot by clara there is no stripe to the left, and no stripe under the caption bar. Only a stripe to the right.

That's because it's on Windows 10. It looks the same for me on my main install, that is Win 10 22H2.

And on the screenshot I took on win11 21H2, there are smaller stripes to the left and right, but not the top.

Looks like every release semester micr (puke)

soft is messing with shellstyle.dll or something else.

herit://that1cutie
Sophomore Member

sad girl times

Posts: 165

OS: Windows 10
Theme: Shitbox Edition

Classic Treeview Jan 10, 2024 19:33:34 GMT -8

Quote

Post by herit://that1cutie on Jan 10, 2024 19:33:34 GMT -8

I am also having the issue where this mod makes it so that explorer doesn't load. I have noticed that when i try to open explorer enough times, the Windhawk toolkit pops up as though I were calling up windhawk instead of explorer. So I think for some reason calls to open explorer are being redirected toward opening Windhawk. I hope this helps.

Last Edit: Jan 10, 2024 23:08:17 GMT -8 by herit://that1cutie

C'mon down and purchase all the Free Will™ you can eat!
Here's an invite to ClassicServ, the unofficial WinClassic Discord server.
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Gamerappa
New Member

Posts: 11

Classic Treeview Jan 12, 2024 6:56:22 GMT -8

Quote

Post by Gamerappa on Jan 12, 2024 6:56:22 GMT -8

Jan 10, 2024 19:33:34 GMT -8 herit://that1cutie said:

the Windhawk toolkit pops up as though I were calling up windhawk instead of explorer

That's something Windhawk does when it notices that Explorer has crashed multiple times. It's so you can easily disable a buggy mod or just stop Windhawk completely.

eriorry Freshman Member Win95-98>Win2k Posts: 31	Classic Treeview Jan 12, 2024 7:08:13 GMT -8 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by eriorry on Jan 12, 2024 7:08:13 GMT -8 for some reason i cant use the desktop button on my taskbar with this mod on,it calls the windhawk toolkit

yingying814
New Member

Posts: 7

Classic Treeview Jan 12, 2024 19:00:20 GMT -8

Quote

Post by yingying814 on Jan 12, 2024 19:00:20 GMT -8

Jan 9, 2024 4:30:14 GMT -8 waldemar21214 said:

Jan 8, 2024 21:08:40 GMT -8 yingying814 said:

It works perfectly when I enabled "Lines At Root".

Otherwise, clicking the plus / minus button does nothing.

That's weird, can you try using WinSpy to see if TVS_HASBUTTONS style is enabled on the treeview control when my mod is used? My mod relies on this style being set, because it doesn't actually have any code to handle clicks on the +/- buttons, the control does it itself.

It is there. I tried to restart and re-compile the script. However, clicking the +/- buttons still does nothing when "Lines At Root" is not activated.

Last Edit: Jan 12, 2024 19:00:45 GMT -8 by yingying814

waldemar21214
Freshman Member

Posts: 73
OS: Windows 10
Theme: Classic
CPU: i5-12400f
RAM: 16 GB DDR4 3600mhz
GPU: PNY 3060TI

Classic Treeview Jan 15, 2024 8:29:18 GMT -8

Quote

Post by waldemar21214 on Jan 15, 2024 8:29:18 GMT -8

Jan 12, 2024 19:00:20 GMT -8 yingying814 said:

It is there. I tried to restart and re-compile the script. However, clicking the +/- buttons still does nothing when "Lines At Root" is not activated.

The only thing enabling this setting does is adding TVS_LINESATROOT style in the window creation function hook. So this means that some other factor is at play. Do you use any other mod that modifies explorer behavior?

Jan 12, 2024 7:08:13 GMT -8 eriorry said:

for some reason i cant use the desktop button on my taskbar with this mod on,it calls the windhawk toolkit

What taskbar exactly do you use? Do you use Classic theme?

As for the general explorer not loading bug, I have no damn clue, in the slightest, what's that about. I'll try posting my mod on the Windhawk discord and maybe someone will tell me what's wrong.

eriorry
Freshman Member

Win95-98>Win2k

Posts: 31

Classic Treeview Jan 15, 2024 23:14:32 GMT -8

Quote

Post by eriorry on Jan 15, 2024 23:14:32 GMT -8

Jan 15, 2024 8:29:18 GMT -8 waldemar21214 said:

Jan 12, 2024 19:00:20 GMT -8 yingying814 said:

It is there. I tried to restart and re-compile the script. However, clicking the +/- buttons still does nothing when "Lines At Root" is not activated.

The only thing enabling this setting does is adding TVS_LINESATROOT style in the window creation function hook. So this means that some other factor is at play. Do you use any other mod that modifies explorer behavior?

Jan 12, 2024 7:08:13 GMT -8 eriorry said:

for some reason i cant use the desktop button on my taskbar with this mod on,it calls the windhawk toolkit

What taskbar exactly do you use? Do you use Classic theme?

As for the general explorer not loading bug, I have no damn clue, in the slightest, what's that about. I'll try posting my mod on the Windhawk discord and maybe someone will tell me what's wrong.

i use retrobar and a shortcut to the desktop as the desktop button

waldemar21214
Freshman Member

Posts: 73
OS: Windows 10
Theme: Classic
CPU: i5-12400f
RAM: 16 GB DDR4 3600mhz
GPU: PNY 3060TI

Classic Treeview Feb 2, 2024 11:44:59 GMT -8

Quote

Post by waldemar21214 on Feb 2, 2024 11:44:59 GMT -8

Jan 15, 2024 23:14:32 GMT -8 eriorry said:

i use retrobar and a shortcut to the desktop as the desktop button

Sorry for the late reply and even more so for how useless it is: I'm unable to reproduce your issue. Works for me :-/

Anyways, released a new update, which replaces raw COM pointers with winrt::com_ptr, replaces the mouse pointer when hovering over items to the accurate one, and added a setting which will automatically detect whether the mod should draw the lines using a alternate colors, so changing the settings every time when you switch between light/dark themes is no longer needed.

waldemar21214
Freshman Member

Posts: 73
OS: Windows 10
Theme: Classic
CPU: i5-12400f
RAM: 16 GB DDR4 3600mhz
GPU: PNY 3060TI

Classic Treeview Feb 7, 2024 10:43:47 GMT -8

Quote

Post by waldemar21214 on Feb 7, 2024 10:43:47 GMT -8

Released update 0.5

Quite a few problems were fixed. The folder band is now scaled up to accomodate larger Menu font sizes, although it's not fully accurate to the real InfoBand. Many memory leaks were fixed, which should improve stability. Gaps to the sides of the treeview should be fixed now. Scrollbar buttons are fixed.

Also, forget everything I said about the gap between the ReBar and the folder band, this was caused by a inaccurate tutorial which advised offsetting the Organize bar by 28px, not 32px as it should. I've now corrected this problem on my main install and all looks fine.

The explorer.exe instability issue still eludes me, unfortunately.

When it will finally be squished, the mod will be fully released. After that, I may add a NT4 mode, which will look like so:

The item view can have the header text added in the same way I do it for the treeview, and the OpenShell buttons can get 3d borders. This will bring us much closer to pixel-perfect NT4 file explorer.

Last Edit: Feb 7, 2024 10:47:08 GMT -8 by waldemar21214

Post by johnnyghost on Jan 7, 2024 13:37:11 GMT -8

Post by waldemar21214 on Jan 8, 2024 5:31:55 GMT -8

Post by anixx on Jan 8, 2024 16:55:21 GMT -8

Post by yingying814 on Jan 8, 2024 21:08:40 GMT -8

Post by clara on Jan 9, 2024 3:42:58 GMT -8

Post by waldemar21214 on Jan 9, 2024 4:30:14 GMT -8

Post by clara on Jan 9, 2024 8:42:35 GMT -8

Post by Cynosphere on Jan 9, 2024 19:00:07 GMT -8

Post by anixx on Jan 10, 2024 5:50:12 GMT -8

Post by waldemar21214 on Jan 10, 2024 6:37:52 GMT -8

Post by anixx on Jan 10, 2024 6:46:23 GMT -8

Post by waldemar21214 on Jan 10, 2024 7:03:46 GMT -8

Post by herit://that1cutie on Jan 10, 2024 19:33:34 GMT -8

Post by Gamerappa on Jan 12, 2024 6:56:22 GMT -8

Post by eriorry on Jan 12, 2024 7:08:13 GMT -8

Post by yingying814 on Jan 12, 2024 19:00:20 GMT -8

Post by waldemar21214 on Jan 15, 2024 8:29:18 GMT -8

Post by eriorry on Jan 15, 2024 23:14:32 GMT -8

Post by waldemar21214 on Feb 2, 2024 11:44:59 GMT -8

Post by waldemar21214 on Feb 7, 2024 10:43:47 GMT -8