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Added an example for SDL_SetWindowHitTest() when you create a borderless resizable window.

This commit is contained in:
Sam Lantinga 2017-09-22 17:29:32 -07:00
parent e763dac6dd
commit 0fea9164eb
1 changed files with 63 additions and 11 deletions
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74
src/test/SDL_test_common.c
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@ -661,6 +661,52 @@ SDLTest_LoadIcon(const char *file)
return (icon); return (icon);
} }
static SDL_HitTestResult
SDLTest_ExampleHitTestCallback(SDL_Window *win, const SDL_Point *area, void *data)
{
int w, h;
const int RESIZE_BORDER = 8;
const int DRAGGABLE_TITLE = 32;
/*SDL_Log("Hit test point %d,%d\n", area->x, area->y);*/
SDL_GetWindowSize(win, &w, &h);
if (area->x < RESIZE_BORDER) {
if (area->y < RESIZE_BORDER) {
SDL_Log("SDL_HITTEST_RESIZE_TOPLEFT\n");
return SDL_HITTEST_RESIZE_TOPLEFT;
} else if (area->y >= (h-RESIZE_BORDER)) {
SDL_Log("SDL_HITTEST_RESIZE_BOTTOMLEFT\n");
return SDL_HITTEST_RESIZE_BOTTOMLEFT;
} else {
SDL_Log("SDL_HITTEST_RESIZE_LEFT\n");
return SDL_HITTEST_RESIZE_LEFT;
}
} else if (area->x >= (w-RESIZE_BORDER)) {
if (area->y < RESIZE_BORDER) {
SDL_Log("SDL_HITTEST_RESIZE_TOPRIGHT\n");
return SDL_HITTEST_RESIZE_TOPRIGHT;
} else if (area->y >= (h-RESIZE_BORDER)) {
SDL_Log("SDL_HITTEST_RESIZE_BOTTOMRIGHT\n");
return SDL_HITTEST_RESIZE_BOTTOMRIGHT;
} else {
SDL_Log("SDL_HITTEST_RESIZE_RIGHT\n");
return SDL_HITTEST_RESIZE_RIGHT;
}
} else if (area->y >= (h-RESIZE_BORDER)) {
SDL_Log("SDL_HITTEST_RESIZE_BOTTOM\n");
return SDL_HITTEST_RESIZE_BOTTOM;
} else if (area->y < RESIZE_BORDER) {
SDL_Log("SDL_HITTEST_RESIZE_TOP\n");
return SDL_HITTEST_RESIZE_TOP;
} else if (area->y < DRAGGABLE_TITLE) {
SDL_Log("SDL_HITTEST_DRAGGABLE\n");
return SDL_HITTEST_DRAGGABLE;
}
return SDL_HITTEST_NORMAL;
}
SDL_bool SDL_bool
SDLTest_CommonInit(SDLTest_CommonState * state) SDLTest_CommonInit(SDLTest_CommonState * state)
{ {
@ -734,8 +780,8 @@ SDLTest_CommonInit(SDLTest_CommonState * state)
int bpp; int bpp;
Uint32 Rmask, Gmask, Bmask, Amask; Uint32 Rmask, Gmask, Bmask, Amask;
#if SDL_VIDEO_DRIVER_WINDOWS #if SDL_VIDEO_DRIVER_WINDOWS
int adapterIndex = 0; int adapterIndex = 0;
int outputIndex = 0; int outputIndex = 0;
#endif #endif
n = SDL_GetNumVideoDisplays(); n = SDL_GetNumVideoDisplays();
SDL_Log("Number of displays: %d\n", n); SDL_Log("Number of displays: %d\n", n);
@ -778,7 +824,7 @@ SDLTest_CommonInit(SDLTest_CommonState * state)
SDL_GetDisplayMode(i, j, &mode); SDL_GetDisplayMode(i, j, &mode);
SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask, SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask,
&Gmask, &Bmask, &Amask); &Gmask, &Bmask, &Amask);
SDL_Log(" Mode %d: %dx%d@%dHz, %d bits-per-pixel (%s)\n", SDL_Log(" Mode %d: %dx%d@%dHz, %d bits-per-pixel (%s)\n",
j, mode.w, mode.h, mode.refresh_rate, bpp, j, mode.w, mode.h, mode.refresh_rate, bpp,
SDL_GetPixelFormatName(mode.format)); SDL_GetPixelFormatName(mode.format));
if (Rmask || Gmask || Bmask) { if (Rmask || Gmask || Bmask) {
@ -789,20 +835,20 @@ SDLTest_CommonInit(SDLTest_CommonState * state)
SDL_Log(" Blue Mask = 0x%.8x\n", SDL_Log(" Blue Mask = 0x%.8x\n",
Bmask); Bmask);
if (Amask) if (Amask)
SDL_Log(" Alpha Mask = 0x%.8x\n", SDL_Log(" Alpha Mask = 0x%.8x\n",
Amask); Amask);
} }
} }
} }
#if SDL_VIDEO_DRIVER_WINDOWS #if SDL_VIDEO_DRIVER_WINDOWS
/* Print the D3D9 adapter index */ /* Print the D3D9 adapter index */
adapterIndex = SDL_Direct3D9GetAdapterIndex( i ); adapterIndex = SDL_Direct3D9GetAdapterIndex( i );
SDL_Log("D3D9 Adapter Index: %d", adapterIndex); SDL_Log("D3D9 Adapter Index: %d", adapterIndex);
/* Print the DXGI adapter and output indices */ /* Print the DXGI adapter and output indices */
SDL_DXGIGetOutputInfo(i, &adapterIndex, &outputIndex); SDL_DXGIGetOutputInfo(i, &adapterIndex, &outputIndex);
SDL_Log("DXGI Adapter Index: %d Output Index: %d", adapterIndex, outputIndex); SDL_Log("DXGI Adapter Index: %d Output Index: %d", adapterIndex, outputIndex);
#endif #endif
} }
} }
@ -892,6 +938,12 @@ SDLTest_CommonInit(SDLTest_CommonState * state)
return SDL_FALSE; return SDL_FALSE;
} }
/* Add resize/drag areas for windows that are borderless and resizable */
if ((state->window_flags & SDL_WINDOW_RESIZABLE|SDL_WINDOW_BORDERLESS) ==
(SDL_WINDOW_RESIZABLE|SDL_WINDOW_BORDERLESS)) {
SDL_SetWindowHitTest(state->windows[i], SDLTest_ExampleHitTestCallback, NULL);
}
if (state->window_icon) { if (state->window_icon) {
SDL_Surface *icon = SDLTest_LoadIcon(state->window_icon); SDL_Surface *icon = SDLTest_LoadIcon(state->window_icon);
if (icon) { if (icon) {
@ -918,7 +970,7 @@ SDLTest_CommonInit(SDLTest_CommonState * state)
} }
} }
if (m == -1) { if (m == -1) {
SDL_Log("Couldn't find render driver named %s", SDL_Log("Couldn't find render driver named %s",
state->renderdriver); state->renderdriver);
return SDL_FALSE; return SDL_FALSE;
} }