mirror of
https://github.com/gryf/wmaker.git
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Initial revision
This commit is contained in:
scottc
709
WINGs/wpopupbutton.c
Normal file
709
WINGs/wpopupbutton.c
Normal file
@@ -0,0 +1,709 @@
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#include "WINGsP.h"
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typedef struct ItemList {
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char *text;
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struct ItemList *nextPtr;
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unsigned int disabled:1;
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} ItemList;
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typedef struct W_PopUpButton {
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W_Class widgetClass;
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WMView *view;
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void *clientData;
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WMAction *action;
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char *caption;
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ItemList *items;
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short itemCount;
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short selectedItemIndex;
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short highlightedItem;
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ItemList *selectedItem; /* selected item if it is a menu btn */
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WMView *menuView; /* override redirect popup menu */
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struct {
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unsigned int pullsDown:1;
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unsigned int configured:1;
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unsigned int insideMenu:1;
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} flags;
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} PopUpButton;
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#define MENU_BLINK_DELAY 60000
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#define MENU_BLINK_COUNT 2
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W_ViewProcedureTable _PopUpButtonViewProcedures = {
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NULL,
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NULL,
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NULL
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};
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#define DEFAULT_WIDTH 60
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#define DEFAULT_HEIGHT 20
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#define DEFAULT_CAPTION ""
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static void destroyPopUpButton(PopUpButton *bPtr);
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static void paintPopUpButton(PopUpButton *bPtr);
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static void handleEvents(XEvent *event, void *data);
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static void handleActionEvents(XEvent *event, void *data);
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static void resizeMenu(PopUpButton *bPtr);
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WMPopUpButton*
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WMCreatePopUpButton(WMWidget *parent)
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{
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PopUpButton *bPtr;
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W_Screen *scr = W_VIEW(parent)->screen;
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bPtr = wmalloc(sizeof(PopUpButton));
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memset(bPtr, 0, sizeof(PopUpButton));
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bPtr->widgetClass = WC_PopUpButton;
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bPtr->view = W_CreateView(W_VIEW(parent));
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if (!bPtr->view) {
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free(bPtr);
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return NULL;
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}
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bPtr->view->self = bPtr;
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WMCreateEventHandler(bPtr->view, ExposureMask|StructureNotifyMask
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|ClientMessageMask, handleEvents, bPtr);
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W_ResizeView(bPtr->view, DEFAULT_WIDTH, DEFAULT_HEIGHT);
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bPtr->caption = wstrdup(DEFAULT_CAPTION);
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WMCreateEventHandler(bPtr->view, ButtonPressMask|ButtonReleaseMask,
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handleActionEvents, bPtr);
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bPtr->menuView = W_CreateTopView(scr);
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bPtr->menuView->attribs.override_redirect = True;
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bPtr->menuView->attribFlags |= CWOverrideRedirect;
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W_ResizeView(bPtr->menuView, bPtr->view->size.width, 1);
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WMCreateEventHandler(bPtr->menuView, ButtonPressMask|ButtonReleaseMask
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|EnterWindowMask|LeaveWindowMask|ButtonMotionMask,
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handleActionEvents, bPtr);
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return bPtr;
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}
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void
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WMSetPopUpButtonAction(WMPopUpButton *bPtr, WMAction *action, void *clientData)
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{
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CHECK_CLASS(bPtr, WC_PopUpButton);
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bPtr->action = action;
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bPtr->clientData = clientData;
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}
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void
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WMAddPopUpButtonItem(WMPopUpButton *bPtr, char *title)
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{
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ItemList *itemPtr, *tmp;
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CHECK_CLASS(bPtr, WC_PopUpButton);
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itemPtr = wmalloc(sizeof(ItemList));
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memset(itemPtr, 0, sizeof(ItemList));
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itemPtr->text = wstrdup(title);
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/* append item to list */
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tmp = bPtr->items;
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if (!tmp)
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bPtr->items = itemPtr;
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else {
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while (tmp->nextPtr!=NULL)
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tmp = tmp->nextPtr;
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tmp->nextPtr = itemPtr;
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}
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bPtr->itemCount++;
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if (bPtr->menuView && bPtr->menuView->flags.realized)
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resizeMenu(bPtr);
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}
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void
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WMInsertPopUpButtonItem(WMPopUpButton *bPtr, int index, char *title)
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{
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ItemList *itemPtr;
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CHECK_CLASS(bPtr, WC_PopUpButton);
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if (index < 0)
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index = 0;
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if (index >= bPtr->itemCount) {
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WMAddPopUpButtonItem(bPtr, title);
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return;
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}
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itemPtr = wmalloc(sizeof(ItemList));
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memset(itemPtr, 0, sizeof(ItemList));
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itemPtr->text = wstrdup(title);
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if (index == 0) {
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itemPtr->nextPtr = bPtr->items;
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bPtr->items = itemPtr;
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} else {
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ItemList *tmp;
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int i = index;
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tmp = bPtr->items;
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/* insert item in list */
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while (--i > 0) {
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tmp = tmp->nextPtr;
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}
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bPtr->items->nextPtr = tmp->nextPtr;
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tmp->nextPtr = bPtr->items;
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}
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bPtr->itemCount++;
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/* if there is an selected item, update it's index to match the new
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* position */
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if (index < bPtr->selectedItemIndex)
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bPtr->selectedItemIndex++;
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if (bPtr->menuView && bPtr->menuView->flags.realized)
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resizeMenu(bPtr);
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}
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void
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WMRemovePopUpButtonItem(WMPopUpButton *bPtr, int index)
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{
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ItemList *tmp;
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CHECK_CLASS(bPtr, WC_PopUpButton);
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if (index < 0 || index >= bPtr->itemCount)
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return;
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if (index == 0) {
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free(bPtr->items->text);
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tmp = bPtr->items->nextPtr;
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free(bPtr->items);
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bPtr->items = tmp;
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} else {
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ItemList *next;
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int i = index;
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tmp = bPtr->items;
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while (--i > 0)
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tmp = tmp->nextPtr;
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next = tmp->nextPtr->nextPtr;
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free(tmp->nextPtr->text);
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free(tmp->nextPtr);
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tmp->nextPtr = next;
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}
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bPtr->itemCount--;
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if (bPtr->selectedItem!=NULL && !bPtr->flags.pullsDown) {
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if (index < bPtr->selectedItemIndex)
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bPtr->selectedItemIndex--;
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else if (index == bPtr->selectedItemIndex) {
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/* reselect first item if the removed item is the
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* selected one */
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bPtr->selectedItem = bPtr->items;
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bPtr->selectedItemIndex = 0;
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if (bPtr->view->flags.mapped)
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paintPopUpButton(bPtr);
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}
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}
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if (bPtr->menuView && bPtr->menuView->flags.realized)
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resizeMenu(bPtr);
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}
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void
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WMSetPopUpButtonSelectedItem(WMPopUpButton *bPtr, int index)
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{
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ItemList *itemPtr = bPtr->items;
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int i = index;
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if (index < 0) {
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bPtr->selectedItem = NULL;
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if (bPtr->view->flags.mapped)
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paintPopUpButton(bPtr);
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return;
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}
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while (i-- > 0) {
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itemPtr = itemPtr->nextPtr;
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}
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bPtr->selectedItem = itemPtr;
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bPtr->selectedItemIndex = index;
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if (bPtr->view->flags.mapped)
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paintPopUpButton(bPtr);
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}
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int
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WMGetPopUpButtonSelectedItem(WMPopUpButton *bPtr)
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{
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if (!bPtr->flags.pullsDown && bPtr->selectedItem==NULL)
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return -1;
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else
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return bPtr->selectedItemIndex;
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}
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void
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WMSetPopUpButtonText(WMPopUpButton *bPtr, char *text)
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{
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if (bPtr->caption)
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free(bPtr->caption);
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if (text)
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bPtr->caption = wstrdup(text);
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else
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bPtr->caption = NULL;
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if (bPtr->view->flags.realized) {
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if (bPtr->flags.pullsDown || bPtr->selectedItemIndex < 0) {
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paintPopUpButton(bPtr);
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}
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}
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}
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void
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WMSetPopUpButtonItemEnabled(WMPopUpButton *bPtr, int index, Bool flag)
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{
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int i;
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ItemList *item = bPtr->items;
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if (index < 0 || index >= bPtr->itemCount)
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return;
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for (i = 0; i<index; i++)
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item=item->nextPtr;
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item->disabled = !flag;
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}
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void
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WMSetPopUpButtonPullsDown(WMPopUpButton *bPtr, Bool flag)
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{
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bPtr->flags.pullsDown = flag;
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if (!flag) {
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bPtr->selectedItem = bPtr->items;
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if (bPtr->selectedItem)
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bPtr->selectedItemIndex = 0;
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else
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bPtr->selectedItemIndex = -1;
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} else
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bPtr->selectedItemIndex = -1;
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if (bPtr->view->flags.mapped)
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paintPopUpButton(bPtr);
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}
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int
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WMGetPopUpButtonNumberOfItems(WMPopUpButton *bPtr)
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{
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return bPtr->itemCount;
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}
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char*
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WMGetPopUpButtonItem(WMPopUpButton *bPtr, int index)
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{
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ItemList *itemPtr = bPtr->items;
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if ((index < 0) || (index >= bPtr->itemCount))
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return NULL;
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while (index-->0)
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itemPtr = itemPtr->nextPtr;
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return itemPtr->text;
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}
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static void
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paintPopUpButton(PopUpButton *bPtr)
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{
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W_Screen *scr = bPtr->view->screen;
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char *caption;
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Pixmap pixmap;
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if (bPtr->flags.pullsDown) {
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caption = bPtr->caption;
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} else {
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if (bPtr->selectedItem == NULL) {
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/* if no item selected, show the caption */
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caption = bPtr->caption;
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} else {
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caption = bPtr->selectedItem->text;
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}
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}
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pixmap = XCreatePixmap(scr->display, bPtr->view->window,
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bPtr->view->size.width, bPtr->view->size.height,
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scr->depth);
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XFillRectangle(scr->display, pixmap, W_GC(scr->gray), 0, 0,
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bPtr->view->size.width, bPtr->view->size.height);
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W_DrawRelief(scr, pixmap, 0, 0, bPtr->view->size.width,
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bPtr->view->size.height, WRRaised);
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if (caption) {
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W_PaintText(bPtr->view, pixmap, scr->normalFont,
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6, (bPtr->view->size.height-scr->normalFont->height)/2,
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bPtr->view->size.width, WALeft, W_GC(scr->black), False,
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caption, strlen(caption));
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}
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if (bPtr->flags.pullsDown) {
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XCopyArea(scr->display, scr->pullDownIndicator->pixmap,
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pixmap, scr->copyGC, 0, 0, scr->pullDownIndicator->width,
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scr->pullDownIndicator->height,
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bPtr->view->size.width-scr->pullDownIndicator->width-4,
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(bPtr->view->size.height-scr->pullDownIndicator->height)/2);
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} else {
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int x, y;
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x = bPtr->view->size.width - scr->popUpIndicator->width - 4;
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y = (bPtr->view->size.height-scr->popUpIndicator->height)/2;
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XSetClipOrigin(scr->display, scr->clipGC, x, y);
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XSetClipMask(scr->display, scr->clipGC, scr->popUpIndicator->mask);
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XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
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scr->clipGC, 0, 0, scr->popUpIndicator->width,
|
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scr->popUpIndicator->height, x, y);
|
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}
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XCopyArea(scr->display, pixmap, bPtr->view->window, scr->copyGC, 0, 0,
|
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bPtr->view->size.width, bPtr->view->size.height, 0, 0);
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XFreePixmap(scr->display, pixmap);
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}
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static void
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handleEvents(XEvent *event, void *data)
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{
|
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PopUpButton *bPtr = (PopUpButton*)data;
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CHECK_CLASS(data, WC_PopUpButton);
|
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switch (event->type) {
|
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case Expose:
|
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if (event->xexpose.count!=0)
|
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break;
|
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paintPopUpButton(bPtr);
|
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break;
|
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|
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case DestroyNotify:
|
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destroyPopUpButton(bPtr);
|
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break;
|
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}
|
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}
|
||||
|
||||
|
||||
|
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static void
|
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paintMenuEntry(PopUpButton *bPtr, int index, int highlight)
|
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{
|
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W_Screen *scr = bPtr->view->screen;
|
||||
int i;
|
||||
int yo;
|
||||
ItemList *itemPtr;
|
||||
int width, height, itemHeight;
|
||||
|
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itemHeight = bPtr->view->size.height;
|
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width = bPtr->view->size.width;
|
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height = itemHeight * bPtr->itemCount;
|
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yo = (itemHeight - scr->normalFont->height)/2;
|
||||
|
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if (!highlight) {
|
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XClearArea(scr->display, bPtr->menuView->window, 0, index*itemHeight,
|
||||
width, itemHeight, False);
|
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return;
|
||||
} else if (index < 0 && bPtr->flags.pullsDown) {
|
||||
return;
|
||||
}
|
||||
|
||||
XFillRectangle(scr->display, bPtr->menuView->window, W_GC(scr->white),
|
||||
1, index*itemHeight+1, width-3, itemHeight-3);
|
||||
|
||||
itemPtr = bPtr->items;
|
||||
for (i = 0; i < index; i++)
|
||||
itemPtr = itemPtr->nextPtr;
|
||||
|
||||
W_DrawRelief(scr, bPtr->menuView->window, 0, index*itemHeight,
|
||||
width, itemHeight, WRRaised);
|
||||
|
||||
W_PaintText(bPtr->menuView, bPtr->menuView->window, scr->normalFont, 6,
|
||||
index*itemHeight + yo, width, WALeft, W_GC(scr->black), False,
|
||||
itemPtr->text, strlen(itemPtr->text));
|
||||
|
||||
if (!bPtr->flags.pullsDown && index == bPtr->selectedItemIndex) {
|
||||
XCopyArea(scr->display, scr->popUpIndicator->pixmap,
|
||||
bPtr->menuView->window, scr->copyGC, 0, 0,
|
||||
scr->popUpIndicator->width, scr->popUpIndicator->height,
|
||||
width-scr->popUpIndicator->width-4,
|
||||
i*itemHeight+(itemHeight-scr->popUpIndicator->height)/2);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Pixmap
|
||||
makeMenuPixmap(PopUpButton *bPtr)
|
||||
{
|
||||
Pixmap pixmap;
|
||||
W_Screen *scr = bPtr->view->screen;
|
||||
int i;
|
||||
int yo;
|
||||
ItemList *itemPtr;
|
||||
int width, height, itemHeight;
|
||||
|
||||
itemHeight = bPtr->view->size.height;
|
||||
width = bPtr->view->size.width;
|
||||
height = itemHeight * bPtr->itemCount;
|
||||
yo = (itemHeight - scr->normalFont->height)/2;
|
||||
|
||||
pixmap = XCreatePixmap(scr->display, bPtr->view->window, width, height,
|
||||
scr->depth);
|
||||
|
||||
XFillRectangle(scr->display, pixmap, W_GC(scr->gray), 0, 0, width, height);
|
||||
|
||||
itemPtr = bPtr->items;
|
||||
for (i = 0; i < bPtr->itemCount; i++) {
|
||||
GC gc;
|
||||
|
||||
W_DrawRelief(scr, pixmap, 0, i*itemHeight, width, itemHeight,
|
||||
WRRaised);
|
||||
|
||||
if (itemPtr->disabled)
|
||||
gc = W_GC(scr->darkGray);
|
||||
else
|
||||
gc = W_GC(scr->black);
|
||||
|
||||
W_PaintText(bPtr->menuView, pixmap, scr->normalFont, 6,
|
||||
i*itemHeight + yo, width, WALeft, gc, False,
|
||||
itemPtr->text, strlen(itemPtr->text));
|
||||
|
||||
if (!bPtr->flags.pullsDown && i == bPtr->selectedItemIndex) {
|
||||
XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
|
||||
scr->copyGC, 0, 0, scr->popUpIndicator->width,
|
||||
scr->popUpIndicator->height,
|
||||
width-scr->popUpIndicator->width-4,
|
||||
i*itemHeight+(itemHeight-scr->popUpIndicator->height)/2);
|
||||
}
|
||||
itemPtr = itemPtr->nextPtr;
|
||||
}
|
||||
|
||||
return pixmap;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
resizeMenu(PopUpButton *bPtr)
|
||||
{
|
||||
int height;
|
||||
|
||||
height = bPtr->itemCount * bPtr->view->size.height;
|
||||
W_ResizeView(bPtr->menuView, bPtr->view->size.width, height);
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
popUpMenu(PopUpButton *bPtr)
|
||||
{
|
||||
W_Screen *scr = bPtr->view->screen;
|
||||
Window dummyW;
|
||||
int x, y;
|
||||
|
||||
if (!bPtr->menuView->flags.realized) {
|
||||
W_RealizeView(bPtr->menuView);
|
||||
resizeMenu(bPtr);
|
||||
}
|
||||
|
||||
if (bPtr->itemCount < 1)
|
||||
return;
|
||||
|
||||
XTranslateCoordinates(scr->display, bPtr->view->window, scr->rootWin,
|
||||
0, 0, &x, &y, &dummyW);
|
||||
|
||||
if (bPtr->flags.pullsDown) {
|
||||
y += bPtr->view->size.height;
|
||||
} else {
|
||||
y -= bPtr->view->size.height*bPtr->selectedItemIndex;
|
||||
}
|
||||
W_MoveView(bPtr->menuView, x, y);
|
||||
|
||||
XSetWindowBackgroundPixmap(scr->display, bPtr->menuView->window,
|
||||
makeMenuPixmap(bPtr));
|
||||
XClearWindow(scr->display, bPtr->menuView->window);
|
||||
|
||||
W_MapView(bPtr->menuView);
|
||||
|
||||
bPtr->highlightedItem = 0;
|
||||
if (!bPtr->flags.pullsDown && bPtr->selectedItem != NULL)
|
||||
paintMenuEntry(bPtr, bPtr->selectedItemIndex, True);
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
popDownMenu(PopUpButton *bPtr)
|
||||
{
|
||||
W_UnmapView(bPtr->menuView);
|
||||
|
||||
/* free the background pixmap used to draw the menu contents */
|
||||
XSetWindowBackgroundPixmap(bPtr->view->screen->display,
|
||||
bPtr->menuView->window, None);
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
itemIsEnabled(PopUpButton *bPtr, int index)
|
||||
{
|
||||
ItemList *item = bPtr->items;
|
||||
|
||||
while (index-- > 0)
|
||||
item = item->nextPtr;
|
||||
|
||||
return !item->disabled;
|
||||
}
|
||||
|
||||
static void
|
||||
handleActionEvents(XEvent *event, void *data)
|
||||
{
|
||||
PopUpButton *bPtr = (PopUpButton*)data;
|
||||
int oldItem;
|
||||
|
||||
CHECK_CLASS(data, WC_PopUpButton);
|
||||
|
||||
if (bPtr->itemCount < 1)
|
||||
return;
|
||||
|
||||
switch (event->type) {
|
||||
/* called for menuView */
|
||||
case LeaveNotify:
|
||||
bPtr->flags.insideMenu = 0;
|
||||
if (bPtr->menuView->flags.mapped)
|
||||
paintMenuEntry(bPtr, bPtr->highlightedItem, False);
|
||||
bPtr->highlightedItem = -1;
|
||||
break;
|
||||
|
||||
case EnterNotify:
|
||||
bPtr->flags.insideMenu = 1;
|
||||
break;
|
||||
|
||||
case MotionNotify:
|
||||
if (bPtr->flags.insideMenu) {
|
||||
oldItem = bPtr->highlightedItem;
|
||||
bPtr->highlightedItem = event->xmotion.y / bPtr->view->size.height;
|
||||
if (oldItem!=bPtr->highlightedItem) {
|
||||
paintMenuEntry(bPtr, oldItem, False);
|
||||
paintMenuEntry(bPtr, bPtr->highlightedItem,
|
||||
itemIsEnabled(bPtr, bPtr->highlightedItem));
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
/* called for bPtr->view */
|
||||
case ButtonPress:
|
||||
popUpMenu(bPtr);
|
||||
if (!bPtr->flags.pullsDown) {
|
||||
bPtr->highlightedItem = bPtr->selectedItemIndex;
|
||||
bPtr->flags.insideMenu = 1;
|
||||
} else {
|
||||
bPtr->highlightedItem = -1;
|
||||
bPtr->flags.insideMenu = 0;
|
||||
}
|
||||
XGrabPointer(bPtr->view->screen->display, bPtr->menuView->window,
|
||||
False, ButtonReleaseMask|ButtonMotionMask|EnterWindowMask
|
||||
|LeaveWindowMask, GrabModeAsync, GrabModeAsync,
|
||||
None, None, CurrentTime);
|
||||
break;
|
||||
|
||||
case ButtonRelease:
|
||||
XUngrabPointer(bPtr->view->screen->display, event->xbutton.time);
|
||||
if (!bPtr->flags.pullsDown)
|
||||
popDownMenu(bPtr);
|
||||
if (bPtr->flags.insideMenu && bPtr->highlightedItem>=0) {
|
||||
if (itemIsEnabled(bPtr, bPtr->highlightedItem)) {
|
||||
int i;
|
||||
WMSetPopUpButtonSelectedItem(bPtr, bPtr->highlightedItem);
|
||||
|
||||
if (bPtr->flags.pullsDown) {
|
||||
for (i=0; i<MENU_BLINK_COUNT; i++) {
|
||||
paintMenuEntry(bPtr, bPtr->highlightedItem, False);
|
||||
XSync(bPtr->view->screen->display, 0);
|
||||
wusleep(MENU_BLINK_DELAY);
|
||||
paintMenuEntry(bPtr, bPtr->highlightedItem, True);
|
||||
XSync(bPtr->view->screen->display, 0);
|
||||
wusleep(MENU_BLINK_DELAY);
|
||||
}
|
||||
}
|
||||
paintMenuEntry(bPtr, bPtr->highlightedItem, False);
|
||||
popDownMenu(bPtr);
|
||||
if (bPtr->action)
|
||||
(*bPtr->action)(bPtr, bPtr->clientData);
|
||||
}
|
||||
}
|
||||
if (bPtr->menuView->flags.mapped)
|
||||
popDownMenu(bPtr);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void
|
||||
destroyPopUpButton(PopUpButton *bPtr)
|
||||
{
|
||||
ItemList *itemPtr, *tmp;
|
||||
|
||||
itemPtr = bPtr->items;
|
||||
while (itemPtr!=NULL) {
|
||||
free(itemPtr->text);
|
||||
tmp = itemPtr->nextPtr;
|
||||
free(itemPtr);
|
||||
itemPtr = tmp;
|
||||
}
|
||||
|
||||
if (bPtr->caption)
|
||||
free(bPtr->caption);
|
||||
|
||||
/* have to destroy explicitly because the popup is a toplevel */
|
||||
W_DestroyView(bPtr->menuView);
|
||||
|
||||
free(bPtr);
|
||||
}
|
||||
Reference in New Issue
Block a user