Peter Howkins
116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/*
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* Copyright (c) 2016 Matthew R. Trower
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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/*
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* Included Files:
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*/
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#include <DtXinerama.h>
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#include "WmMultiHead.h"
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/*
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* Global Variables
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*/
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DtXineramaInfo_t *DtXI = NULL;/* Xinerama data is static for life of X server */
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/*************************************<->*************************************
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*
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* GetHeadInfo (pcd)
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*
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*
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* Description:
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* -----------
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* Search for the head containing target client.
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*
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*
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* Inputs:
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* ------
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*
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*
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* Outputs:
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* -------
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* Return = head metrics on success, NULL on failure.
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* menuWidget, and menuButtons members.
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*
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*
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* Comments:
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* --------
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*
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* Can fail if:
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*
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* - MultiHead(eg. Xinerama) is not active
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* - Client does not fall within any existing head
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* - malloc error
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* - pcd is NULL
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*
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*************************************<->***********************************/
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WmHeadInfo_t *GetHeadInfo(const ClientData *pcd) {
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WmHeadInfo_t *WmHI = NULL;
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if (!DtXI)
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DtXI = _DtXineramaInit(DISPLAY);
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if (!pcd || !DtXI)
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return NULL;
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if (!(WmHI = (WmHeadInfo_t *)malloc(sizeof(WmHeadInfo_t)))) {
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#ifdef DEBUG
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fprintf(stderr, "(dtwm) _GetScreenInfo: malloc failed\n");
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#endif
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free(DtXI);
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return NULL;
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}
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/*
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* TODO
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*
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* DtXineramaInfo_t uses unsigned ints
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* XineramaScreenInfo uses shorts(?)
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* ClientData uses ints
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* FrameToClient and friends use a mixture (!)
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*
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* Explicit casting would shut the compiler up, but wouldn't change the
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* fundamental fact that we can't agree on coordinate types.
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*/
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int idx = 0;
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while (_DtXineramaGetScreen(DtXI, idx++,
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&WmHI->width, &WmHI->height, &WmHI->x_org, &WmHI->y_org)) {
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if (pcd->clientX >= WmHI->x_org &&
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pcd->clientY >= WmHI->y_org &&
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pcd->clientX <= WmHI->x_org + WmHI->width &&
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pcd->clientY <= WmHI->y_org + WmHI->height)
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return WmHI;
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}
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free(WmHI);
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/* No valid screen */
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return NULL;
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}
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