Mod+Wheel Window Resize

This patch adds the ability to resize windows with the mouse wheel
while holding the Mod key. This currently ignores wWindowConstrainSize
until I can figure out a way to repeatably resize windows with
fixed size increments (like xterm) using this method.

This also adds a slider to WPrefs to choose the increment with which
the wheel will resize a window.

WPrefs.app/WindowHandling.c

@@ -53,6 +53,10 @@ typedef struct _Panel {
 	WMButton *miconB;
 	WMButton *mdockB;
 
+	WMLabel *resizeL;
+	WMLabel *resizeTextL;
+	WMSlider *resizeS;
+
 	WMFrame *opaqF;
 	WMButton *opaqB;
 
@@ -111,6 +115,22 @@ static void resistanceCallback(WMWidget * w, void *data)
 	}
 }
 
+static void resizeCallback(WMWidget * w, void *data)
+{
+	_Panel *panel = (_Panel *) data;
+	char buffer[64];
+	int i;
+
+	i = WMGetSliderValue(panel->resizeS);
+
+	if (i == 0)
+		WMSetLabelText(panel->resizeL, "OFF");
+	else {
+		sprintf(buffer, "%i", i);
+		WMSetLabelText(panel->resizeL, buffer);
+	}
+}
+
 static int getPlacement(char *str)
 {
 	if (!str)
@@ -163,6 +183,10 @@ static void showData(_Panel * panel)
 	WMSetSliderValue(panel->resS, x);
 	resistanceCallback(NULL, panel);
 
+	x = GetIntegerForKey("ResizeIncrement");
+	WMSetSliderValue(panel->resizeS, x);
+	resizeCallback(NULL, panel);
+
 	WMSetButtonSelected(panel->tranB, GetBoolForKey("OpenTransientOnOwnerWorkspace"));
 
 	WMSetButtonSelected(panel->opaqB, GetBoolForKey("OpaqueMove"));
@@ -192,6 +216,7 @@ static void storeData(_Panel * panel)
 	arr = WMCreatePLArray(WMCreatePLString(x), WMCreatePLString(y), NULL);
 	SetObjectForKey(arr, "WindowPlaceOrigin");
 	SetIntegerForKey(WMGetSliderValue(panel->resS), "EdgeResistance");
+	SetIntegerForKey(WMGetSliderValue(panel->resizeS), "ResizeIncrement");
 	SetBoolForKey(WMGetButtonSelected(panel->resrB), "Attraction");
 	WMReleasePropList(arr);
 }
@@ -341,15 +366,31 @@ static void createPanel(Panel * p)
 
 	panel->miconB = WMCreateSwitchButton(panel->maxiF);
 	WMResizeWidget(panel->miconB, 190, 30);
-	WMMoveWidget(panel->miconB, 10, 18);
+	WMMoveWidget(panel->miconB, 10, 12);
 	WMSetButtonText(panel->miconB, _("...do not cover icons"));
 
 	panel->mdockB = WMCreateSwitchButton(panel->maxiF);
 	WMResizeWidget(panel->mdockB, 190, 30);
-	WMMoveWidget(panel->mdockB, 10, 53);
+	WMMoveWidget(panel->mdockB, 10, 35);
 
 	WMSetButtonText(panel->mdockB, _("...do not cover dock"));
 
+	panel->resizeS = WMCreateSlider(panel->maxiF);
+	WMResizeWidget(panel->resizeS, 50, 15);
+	WMMoveWidget(panel->resizeS, 10, 70);
+	WMSetSliderMinValue(panel->resizeS, 0);
+	WMSetSliderMaxValue(panel->resizeS, 100);
+	WMSetSliderAction(panel->resizeS, resizeCallback, panel);
+
+	panel->resizeL = WMCreateLabel(panel->maxiF);
+	WMResizeWidget(panel->resizeL, 30, 15);
+	WMMoveWidget(panel->resizeL, 60, 70);
+
+	panel->resizeTextL = WMCreateLabel(panel->maxiF);
+	WMSetLabelText(panel->resizeTextL, "Mod+Wheel\nresize increment");
+	WMResizeWidget(panel->resizeTextL, 110, 30);
+	WMMoveWidget(panel->resizeTextL, 90, 62);
+
 	WMMapSubwidgets(panel->maxiF);
 
     /**************** Edge Resistance  ****************/

src/WindowMaker.h

@@ -466,6 +466,7 @@ typedef struct WPreferences {
     signed char shade_speed;
 
     int edge_resistance;
+    int resize_increment;
     char attract;
 
     unsigned int workspace_border_size; /* Size in pixels of the workspace border */

src/defaults.c

@@ -468,6 +468,8 @@ WDefaultEntry optionList[] = {
 	 &wPreferences.help_balloon, getBool, NULL},
 	{"EdgeResistance", "30", NULL,
 	 &wPreferences.edge_resistance, getInt, NULL},
+	{"ResizeIncrement", "32", NULL,
+	 &wPreferences.resize_increment, getInt, NULL},
 	{"Attraction", "NO", NULL,
 	 &wPreferences.attract, getBool, NULL},
 	{"DisableBlinking", "NO", NULL,

src/window.c

@@ -2966,6 +2966,11 @@ static void titlebarDblClick(WCoreWindow * sender, void *data, XEvent * event)
 static void frameMouseDown(WObjDescriptor * desc, XEvent * event)
 {
 	WWindow *wwin = desc->parent;
+	unsigned int new_width;
+	unsigned int new_height;
+	unsigned int resize_increment;
+
+	resize_increment = wPreferences.resize_increment;
 
 	event->xbutton.state &= ValidModMask;
 
@@ -2990,10 +2995,21 @@ static void frameMouseDown(WObjDescriptor * desc, XEvent * event)
 #endif
 			return;
 		}
-		if (event->xbutton.button == Button3)
+		if (event->xbutton.button == Button3) {
 			wMouseResizeWindow(wwin, event);
-		else if (event->xbutton.button == Button1 || event->xbutton.button == Button2)
+		} else if (event->xbutton.button == Button4) {
+			new_width = wwin->client.width - resize_increment;
+			new_height = wwin->client.height - resize_increment;
+			//wWindowConstrainSize(wwin, &new_width,&new_height);
+			wWindowConfigure(wwin, wwin->frame_x, wwin->frame_y, new_width, new_height);
+		} else if (event->xbutton.button == Button5) {
+			new_width = wwin->client.width + resize_increment;
+			new_height = wwin->client.height + resize_increment;
+			//wWindowConstrainSize(wwin, &new_width,&new_height);
+			wWindowConfigure(wwin, wwin->frame_x, wwin->frame_y, new_width, new_height);
+		} else if (event->xbutton.button == Button1 || event->xbutton.button == Button2) {
 			wMouseMoveWindow(wwin, event);
+		}
 		XUngrabPointer(dpy, CurrentTime);
 	}
 }