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[win32] Use DPI dependent OS API calls #1506

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Oct 11, 2024
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[win32] Use DPI dependent OS API calls #1506

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8 changes: 8 additions & 0 deletions bundles/org.eclipse.swt/Eclipse SWT PI/win32/org/eclipse/swt/internal/win32/OS.java
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Expand Up @@ -4581,4 +4581,12 @@ public static int HRESULT_FROM_WIN32(int x) {
public static final native boolean DuplicateHandle(long hSourceProcessHandle, long hSourceHandle, long hTargetProcessHandle,
long [] lpTargetHandle, int dwDesiredAccess, boolean b, int dwOptions);


public static long OpenThemeData(long hwnd, char[] themeName, int dpi) {
if (OS.WIN32_BUILD >= OS.WIN32_BUILD_WIN10_1809) {
return OS.OpenThemeDataForDpi(hwnd, themeName, dpi);
} else {
return OS.OpenThemeData(hwnd, themeName);
Comment on lines +4587 to +4589
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Since these 2 methods are now replaced by your new method, it would be worth declaring them private.

}
}
}
4 changes: 2 additions & 2 deletions bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Button.java
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Expand Up @@ -1311,7 +1311,7 @@ private int getCheckboxTextOffset(long hdc) {
SIZE size = new SIZE();

if (OS.IsAppThemed ()) {
OS.GetThemePartSize(display.hButtonTheme(), hdc, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, null, OS.TS_TRUE, size);
OS.GetThemePartSize(display.hButtonTheme(getZoom()), hdc, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, null, OS.TS_TRUE, size);
result += size.cx;
} else {
result += DPIUtil.scaleUp(13, nativeZoom);
Expand Down Expand Up @@ -1543,7 +1543,7 @@ LRESULT wmDrawChild (long wParam, long lParam) {
boolean pressed = ((struct.itemState & OS.ODS_SELECTED) != 0);
boolean enabled = getEnabled ();
int iStateId = getThemeStateId(style, pressed, enabled);
OS.DrawThemeBackground (display.hScrollBarThemeAuto (), struct.hDC, OS.SBP_ARROWBTN, iStateId, rect, null);
OS.DrawThemeBackground (display.hScrollBarThemeAuto (getZoom()), struct.hDC, OS.SBP_ARROWBTN, iStateId, rect, null);
} else {
int uState = OS.DFCS_SCROLLLEFT;
switch (style & (SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT)) {
Expand Down
2 changes: 1 addition & 1 deletion bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Composite.java
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Expand Up @@ -1856,7 +1856,7 @@ LRESULT wmNCPaint (long hwnd, long wParam, long lParam) {
rect.left = rect.top = 0;
int border = getSystemMetrics (OS.SM_CXEDGE);
OS.ExcludeClipRect (hDC, border, border, rect.right - border, rect.bottom - border);
OS.DrawThemeBackground (display.hEditTheme (), hDC, OS.EP_EDITTEXT, OS.ETS_NORMAL, rect, null);
OS.DrawThemeBackground (display.hEditTheme (getZoom()), hDC, OS.EP_EDITTEXT, OS.ETS_NORMAL, rect, null);
OS.ReleaseDC (hwnd, hDC);
return new LRESULT (code);
}
Expand Down
188 changes: 126 additions & 62 deletions bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Display.java
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Expand Up @@ -153,7 +153,7 @@ public class Display extends Device implements Executor {
}

/* XP Themes */
long hButtonTheme, hButtonThemeDark, hEditTheme, hExplorerBarTheme, hScrollBarTheme, hScrollBarThemeDark, hTabTheme;
private Map<Integer, ThemeData> themeDataMap = new HashMap<>();
static final char [] EXPLORER = new char [] {'E', 'X', 'P', 'L', 'O', 'R', 'E', 'R', 0};
static final char [] TREEVIEW = new char [] {'T', 'R', 'E', 'E', 'V', 'I', 'E', 'W', 0};
/* Emergency switch to be used in case of regressions. Not supposed to be changed when app is running. */
Expand Down Expand Up @@ -2665,93 +2665,55 @@ public boolean getTouchEnabled () {
return (value & (OS.NID_READY | OS.NID_MULTI_INPUT)) == (OS.NID_READY | OS.NID_MULTI_INPUT);
}

long hButtonTheme () {
if (hButtonTheme != 0) return hButtonTheme;
final char[] themeName = "BUTTON\0".toCharArray();
return hButtonTheme = OS.OpenThemeData (hwndMessage, themeName);
long hButtonTheme (int dpi) {
return getOrCreateThemeData(dpi).hButtonTheme();
}

long hButtonThemeDark () {
if (hButtonThemeDark != 0) return hButtonThemeDark;
final char[] themeName = "Darkmode_Explorer::BUTTON\0".toCharArray();
return hButtonThemeDark = OS.OpenThemeData (hwndMessage, themeName);
long hButtonThemeDark (int dpi) {
return getOrCreateThemeData(dpi).hButtonThemeDark();
}

long hButtonThemeAuto () {
long hButtonThemeAuto (int dpi) {
if (useDarkModeExplorerTheme) {
return hButtonThemeDark ();
return hButtonThemeDark (dpi);
} else {
return hButtonTheme ();
return hButtonTheme (dpi);
}
}

long hEditTheme () {
if (hEditTheme != 0) return hEditTheme;
final char[] themeName = "EDIT\0".toCharArray();
return hEditTheme = OS.OpenThemeData (hwndMessage, themeName);
long hEditTheme (int dpi) {
return getOrCreateThemeData(dpi).hEditTheme();
}

long hExplorerBarTheme () {
if (hExplorerBarTheme != 0) return hExplorerBarTheme;
final char[] themeName = "EXPLORERBAR\0".toCharArray();
return hExplorerBarTheme = OS.OpenThemeData (hwndMessage, themeName);
long hExplorerBarTheme (int dpi) {
return getOrCreateThemeData(dpi).hExplorerBarTheme();
}

long hScrollBarTheme () {
if (hScrollBarTheme != 0) return hScrollBarTheme;
final char[] themeName = "SCROLLBAR\0".toCharArray();
return hScrollBarTheme = OS.OpenThemeData (hwndMessage, themeName);
long hScrollBarTheme (int dpi) {
return getOrCreateThemeData(dpi).hScrollBarTheme();
}

long hScrollBarThemeDark () {
if (hScrollBarThemeDark != 0) return hScrollBarThemeDark;
final char[] themeName = "Darkmode_Explorer::SCROLLBAR\0".toCharArray();
return hScrollBarThemeDark = OS.OpenThemeData (hwndMessage, themeName);
long hScrollBarThemeDark (int dpi) {
return getOrCreateThemeData(dpi).hScrollBarThemeDark();
}

long hScrollBarThemeAuto () {
long hScrollBarThemeAuto (int dpi) {
if (useDarkModeExplorerTheme) {
return hScrollBarThemeDark ();
return hScrollBarThemeDark (dpi);
} else {
return hScrollBarTheme ();
return hScrollBarTheme (dpi);
}
}

long hTabTheme () {
if (hTabTheme != 0) return hTabTheme;
final char[] themeName = "TAB\0".toCharArray();
return hTabTheme = OS.OpenThemeData (hwndMessage, themeName);
long hTabTheme (int dpi) {
return getOrCreateThemeData(dpi).hTabTheme();
}

void resetThemes() {
if (hButtonTheme != 0) {
OS.CloseThemeData (hButtonTheme);
hButtonTheme = 0;
}
if (hButtonThemeDark != 0) {
OS.CloseThemeData (hButtonThemeDark);
hButtonThemeDark = 0;
}
if (hEditTheme != 0) {
OS.CloseThemeData (hEditTheme);
hEditTheme = 0;
}
if (hExplorerBarTheme != 0) {
OS.CloseThemeData (hExplorerBarTheme);
hExplorerBarTheme = 0;
}
if (hScrollBarTheme != 0) {
OS.CloseThemeData (hScrollBarTheme);
hScrollBarTheme = 0;
}
if (hScrollBarThemeDark != 0) {
OS.CloseThemeData (hScrollBarThemeDark);
hScrollBarThemeDark = 0;
}
if (hTabTheme != 0) {
OS.CloseThemeData (hTabTheme);
hTabTheme = 0;
for (ThemeData themeData : themeDataMap.values()) {
themeData.reset();
}
themeDataMap.clear();
}

/**
Expand Down Expand Up @@ -5313,6 +5275,108 @@ static boolean isActivateShellOnForceFocus() {
return "true".equals(System.getProperty("org.eclipse.swt.internal.activateShellOnForceFocus", "true")); //$NON-NLS-1$
}

private ThemeData getOrCreateThemeData(int dpi) {
if (themeDataMap.containsKey(dpi)) {
return themeDataMap.get(dpi);
}
ThemeData themeData = new ThemeData(dpi);
themeDataMap.put(dpi, themeData);
return themeData;
}

private class ThemeData {
private long hButtonTheme;
private long hButtonThemeDark;
private long hEditTheme;
private long hExplorerBarTheme;
private long hScrollBarTheme;
private long hScrollBarThemeDark;
private long hTabTheme;

private int dpi;

private ThemeData(int dpi) {
this.dpi = dpi;
}

long hButtonTheme () {
if (hButtonTheme != 0) return hButtonTheme;
final char[] themeName = "BUTTON\0".toCharArray();
return hButtonTheme = openThemeData(themeName);
}

long hButtonThemeDark () {
if (hButtonThemeDark != 0) return hButtonThemeDark;
final char[] themeName = "Darkmode_Explorer::BUTTON\0".toCharArray();
return hButtonThemeDark = openThemeData(themeName);
}

long hEditTheme () {
if (hEditTheme != 0) return hEditTheme;
final char[] themeName = "EDIT\0".toCharArray();
return hEditTheme = openThemeData(themeName);
}

long hExplorerBarTheme () {
if (hExplorerBarTheme != 0) return hExplorerBarTheme;
final char[] themeName = "EXPLORERBAR\0".toCharArray();
return hExplorerBarTheme = openThemeData(themeName);
}

long hScrollBarTheme () {
if (hScrollBarTheme != 0) return hScrollBarTheme;
final char[] themeName = "SCROLLBAR\0".toCharArray();
return hScrollBarTheme = openThemeData(themeName);
}

long hScrollBarThemeDark () {
if (hScrollBarThemeDark != 0) return hScrollBarThemeDark;
final char[] themeName = "Darkmode_Explorer::SCROLLBAR\0".toCharArray();
return hScrollBarThemeDark = openThemeData(themeName);
}

long hTabTheme () {
if (hTabTheme != 0) return hTabTheme;
final char[] themeName = "TAB\0".toCharArray();
return hTabTheme = openThemeData(themeName);
}


public void reset() {
if (hButtonTheme != 0) {
OS.CloseThemeData (hButtonTheme);
hButtonTheme = 0;
}
if (hButtonThemeDark != 0) {
OS.CloseThemeData (hButtonThemeDark);
hButtonThemeDark = 0;
}
if (hEditTheme != 0) {
OS.CloseThemeData (hEditTheme);
hEditTheme = 0;
}
if (hExplorerBarTheme != 0) {
OS.CloseThemeData (hExplorerBarTheme);
hExplorerBarTheme = 0;
}
if (hScrollBarTheme != 0) {
OS.CloseThemeData (hScrollBarTheme);
hScrollBarTheme = 0;
}
if (hScrollBarThemeDark != 0) {
OS.CloseThemeData (hScrollBarThemeDark);
hScrollBarThemeDark = 0;
}
if (hTabTheme != 0) {
OS.CloseThemeData (hTabTheme);
hTabTheme = 0;
}
}

private long openThemeData(final char[] themeName) {
return OS.OpenThemeData(hwndMessage, themeName, dpi);
}
}
/**
* {@return whether rescaling of shells at runtime when the DPI scaling of a
* shell's monitor changes is activated for this device}
Expand Down
6 changes: 3 additions & 3 deletions bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ExpandBar.java
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Expand Up @@ -137,7 +137,7 @@ static int checkStyle (int style) {
long hDC = OS.GetDC (handle);
long hTheme = 0;
if (isAppThemed ()) {
hTheme = display.hExplorerBarTheme ();
hTheme = display.hExplorerBarTheme (getZoom());
}
long hCurrentFont = 0, oldFont = 0;
if (hTheme == 0) {
Expand Down Expand Up @@ -247,13 +247,13 @@ void drawThemeBackground (long hDC, long hwnd, RECT rect) {
RECT rect2 = new RECT ();
OS.GetClientRect (handle, rect2);
OS.MapWindowPoints (handle, hwnd, rect2, 2);
OS.DrawThemeBackground (display.hExplorerBarTheme (), hDC, OS.EBP_NORMALGROUPBACKGROUND, 0, rect2, null);
OS.DrawThemeBackground (display.hExplorerBarTheme (getZoom()), hDC, OS.EBP_NORMALGROUPBACKGROUND, 0, rect2, null);
}

void drawWidget (GC gc, RECT clipRect) {
long hTheme = 0;
if (isAppThemed ()) {
hTheme = display.hExplorerBarTheme ();
hTheme = display.hExplorerBarTheme (getZoom());
}
if (hTheme != 0) {
RECT rect = new RECT ();
Expand Down
2 changes: 1 addition & 1 deletion bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/TabFolder.java
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Expand Up @@ -298,7 +298,7 @@ void drawThemeBackground (long hDC, long hwnd, RECT rect) {
OS.GetClientRect (handle, rect2);
OS.MapWindowPoints (handle, hwnd, rect2, 2);
if (OS.IntersectRect (new RECT (), rect2, rect)) {
OS.DrawThemeBackground (display.hTabTheme (), hDC, OS.TABP_BODY, 0, rect2, null);
OS.DrawThemeBackground (display.hTabTheme (getZoom()), hDC, OS.TABP_BODY, 0, rect2, null);
}
}

Expand Down
6 changes: 3 additions & 3 deletions bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Table.java
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Expand Up @@ -3566,7 +3566,7 @@ void sendEraseItemEvent (TableItem item, NMLVCUSTOMDRAW nmcd, long lParam, Event
rect.right += EXPLORER_EXTRA;
pClipRect.right += EXPLORER_EXTRA;
}
long hTheme = OS.OpenThemeData (handle, Display.TREEVIEW);
long hTheme = OS.OpenThemeData (handle, Display.TREEVIEW, getZoom());
int iStateId = selected ? OS.LISS_SELECTED : OS.LISS_HOT;
if (OS.GetFocus () != handle && selected && !drawHot) iStateId = OS.LISS_SELECTEDNOTFOCUS;
if (drawDrophilited) iStateId = OS.LISS_SELECTED;
Expand Down Expand Up @@ -4263,14 +4263,14 @@ void setCheckboxImageList (int width, int height, boolean fixScroll) {
* artifacts, limit the rectangle to actual checkbox bitmap size.
*/
SIZE size = new SIZE();
OS.GetThemePartSize(display.hButtonTheme(), memDC, OS.BP_CHECKBOX, 0, null, OS.TS_TRUE, size);
OS.GetThemePartSize(display.hButtonTheme(getZoom()), memDC, OS.BP_CHECKBOX, 0, null, OS.TS_TRUE, size);
itemWidth = Math.min (size.cx, itemWidth);
itemHeight = Math.min (size.cy, itemHeight);
}
int left = (width - itemWidth) / 2, top = (height - itemHeight) / 2;
OS.SetRect (rect, left, top, left + itemWidth, top + itemHeight);
if (OS.IsAppThemed ()) {
long hTheme = display.hButtonTheme ();
long hTheme = display.hButtonTheme(getZoom());
OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null);
rect.left += width; rect.right += width;
OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_CHECKEDNORMAL, rect, null);
Expand Down
2 changes: 1 addition & 1 deletion bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Text.java
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Expand Up @@ -2751,7 +2751,7 @@ LRESULT WM_DRAWITEM (long wParam, long lParam) {
drawBackground (struct.hDC, rect, -1, pt.x, pt.y);
if (struct.CtlID == SWT.ICON_CANCEL && struct.hwndItem == hwndActiveIcon && OS.IsAppThemed()) {
int state = OS.GetKeyState (OS.VK_LBUTTON) < 0 ? OS.PBS_PRESSED : OS.PBS_HOT;
OS.DrawThemeBackground (display.hButtonThemeAuto (), struct.hDC, OS.BP_PUSHBUTTON, state, rect, null);
OS.DrawThemeBackground (display.hButtonThemeAuto (getZoom()), struct.hDC, OS.BP_PUSHBUTTON, state, rect, null);
}
int width = rect.right - rect.left;
int height = rect.bottom - rect.top;
Expand Down
10 changes: 5 additions & 5 deletions bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Tree.java
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Expand Up @@ -497,7 +497,7 @@ LRESULT CDDS_ITEMPOSTPAINT (NMTVCUSTOMDRAW nmcd, long wParam, long lParam) {
}
}
draw = false;
long hTheme = OS.OpenThemeData (handle, Display.TREEVIEW);
long hTheme = OS.OpenThemeData (handle, Display.TREEVIEW, getZoom());
int iStateId = selected ? OS.TREIS_SELECTED : OS.TREIS_HOT;
if (OS.GetFocus () != handle && selected && !hot) iStateId = OS.TREIS_SELECTEDNOTFOCUS;
OS.DrawThemeBackground (hTheme, hDC, OS.TVP_TREEITEM, iStateId, pRect, pClipRect);
Expand Down Expand Up @@ -710,7 +710,7 @@ LRESULT CDDS_ITEMPOSTPAINT (NMTVCUSTOMDRAW nmcd, long wParam, long lParam) {
backgroundRect = selectionRect;
}
}
long hTheme = OS.OpenThemeData (handle, Display.TREEVIEW);
long hTheme = OS.OpenThemeData(handle, Display.TREEVIEW, getZoom());
int iStateId = selected ? OS.TREIS_SELECTED : OS.TREIS_HOT;
if (OS.GetFocus () != handle && selected && !hot) iStateId = OS.TREIS_SELECTEDNOTFOCUS;
OS.DrawThemeBackground (hTheme, hDC, OS.TVP_TREEITEM, iStateId, pRect, backgroundRect);
Expand Down Expand Up @@ -1140,7 +1140,7 @@ LRESULT CDDS_ITEMPREPAINT (NMTVCUSTOMDRAW nmcd, long wParam, long lParam) {
}
pRect.left -= EXPLORER_EXTRA;
pClipRect.left -= EXPLORER_EXTRA;
long hTheme = OS.OpenThemeData (handle, Display.TREEVIEW);
long hTheme = OS.OpenThemeData (handle, Display.TREEVIEW, getZoom());
int iStateId = selected ? OS.TREIS_SELECTED : OS.TREIS_HOT;
if (OS.GetFocus () != handle && selected && !hot) iStateId = OS.TREIS_SELECTEDNOTFOCUS;
OS.DrawThemeBackground (hTheme, hDC, OS.TVP_TREEITEM, iStateId, pRect, pClipRect);
Expand Down Expand Up @@ -4781,14 +4781,14 @@ void setCheckboxImageList () {
* artifacts, limit the rectangle to actual checkbox bitmap size.
*/
SIZE size = new SIZE();
OS.GetThemePartSize(display.hButtonTheme(), memDC, OS.BP_CHECKBOX, 0, null, OS.TS_TRUE, size);
OS.GetThemePartSize(display.hButtonTheme(getZoom()), memDC, OS.BP_CHECKBOX, 0, null, OS.TS_TRUE, size);
itemWidth = Math.min (size.cx, itemWidth);
itemHeight = Math.min (size.cy, itemHeight);
}
int left = (width - itemWidth) / 2, top = (height - itemHeight) / 2 + 1;
OS.SetRect (rect, left + width, top, left + width + itemWidth, top + itemHeight);
if (OS.IsAppThemed ()) {
long hTheme = display.hButtonTheme ();
long hTheme = display.hButtonTheme(getZoom());
OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null);
rect.left += width; rect.right += width;
OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_CHECKEDNORMAL, rect, null);
Expand Down
2 changes: 1 addition & 1 deletion bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Widget.java
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Expand Up @@ -2350,7 +2350,7 @@ LRESULT wmPrint (long hwnd, long wParam, long lParam) {
rect.left = rect.top = 0;
int border = getSystemMetrics (OS.SM_CXEDGE);
OS.ExcludeClipRect (wParam, border, border, rect.right - border, rect.bottom - border);
OS.DrawThemeBackground (display.hEditTheme (), wParam, OS.EP_EDITTEXT, OS.ETS_NORMAL, rect, null);
OS.DrawThemeBackground (display.hEditTheme (getZoom()), wParam, OS.EP_EDITTEXT, OS.ETS_NORMAL, rect, null);
return new LRESULT (code);
}
}
Expand Down
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