| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org> |
| Copyright (C) 2018-2019 EXL <exlmotodev@gmail.com> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| |
| #include "../../SDL_internal.h" |
| |
| #if SDL_VIDEO_DRIVER_HAIKU |
| |
| #include "SDL_messagebox.h" |
| |
| /* For application signature. */ |
| #include "../../main/haiku/SDL_BeApp.h" |
| |
| #include <Alert.h> |
| #include <Application.h> |
| #include <Button.h> |
| #include <Font.h> |
| #include <Layout.h> |
| #include <String.h> |
| #include <TextView.h> |
| #include <View.h> |
| #include <Window.h> |
| |
| #include <InterfaceDefs.h> |
| #include <SupportDefs.h> |
| #include <GraphicsDefs.h> |
| |
| #include <new> |
| #include <vector> |
| #include <algorithm> |
| |
| enum |
| { |
| G_CLOSE_BUTTON_ID = -1, |
| G_DEFAULT_BUTTON_ID = 0, |
| G_MAX_STRING_LENGTH_BYTES = 120 |
| }; |
| |
| class HAIKU_SDL_MessageBox : public BAlert |
| { |
| float fComputedMessageBoxWidth; |
| |
| BTextView *fMessageBoxTextView; |
| |
| int fCloseButton; |
| int fDefaultButton; |
| |
| bool fCustomColorScheme; |
| bool fThereIsLongLine; |
| rgb_color fTextColor; |
| |
| const char *fTitle; |
| const char *HAIKU_SDL_DefTitle; |
| const char *HAIKU_SDL_DefMessage; |
| const char *HAIKU_SDL_DefButton; |
| |
| std::vector<const SDL_MessageBoxButtonData *> fButtons; |
| |
| static bool |
| SortButtonsPredicate(const SDL_MessageBoxButtonData *aButtonLeft, |
| const SDL_MessageBoxButtonData *aButtonRight) |
| { |
| return aButtonLeft->buttonid < aButtonRight->buttonid; |
| } |
| |
| alert_type |
| ConvertMessageBoxType(const SDL_MessageBoxFlags aWindowType) const |
| { |
| switch (aWindowType) |
| { |
| default: |
| case SDL_MESSAGEBOX_WARNING: |
| { |
| return B_WARNING_ALERT; |
| } |
| case SDL_MESSAGEBOX_ERROR: |
| { |
| return B_STOP_ALERT; |
| } |
| case SDL_MESSAGEBOX_INFORMATION: |
| { |
| return B_INFO_ALERT; |
| } |
| } |
| } |
| |
| rgb_color |
| ConvertColorType(const SDL_MessageBoxColor *aColor) const |
| { |
| rgb_color color = { aColor->r, aColor->g, aColor->b, color.alpha = 255 }; |
| return color; |
| } |
| |
| int32 |
| GetLeftPanelWidth(void) const |
| { |
| // See file "haiku/src/kits/interface/Alert.cpp" for this magic numbers. |
| // IconStripeWidth = 30 * Scale |
| // IconSize = 32 * Scale |
| // Scale = max_c(1, ((int32)be_plain_font->Size() + 15) / 16) |
| // RealWidth = (IconStripeWidth * Scale) + (IconSize * Scale) |
| |
| int32 scale = max_c(1, ((int32)be_plain_font->Size() + 15) / 16); |
| return (30 * scale) + (32 * scale); |
| } |
| |
| void |
| UpdateTextViewWidth(void) |
| { |
| fComputedMessageBoxWidth = fMessageBoxTextView->PreferredSize().Width() + GetLeftPanelWidth(); |
| } |
| |
| void |
| ParseSdlMessageBoxData(const SDL_MessageBoxData *aMessageBoxData) |
| { |
| if (aMessageBoxData == NULL) |
| { |
| SetTitle(HAIKU_SDL_DefTitle); |
| SetMessageText(HAIKU_SDL_DefMessage); |
| AddButton(HAIKU_SDL_DefButton); |
| return; |
| } |
| |
| if (aMessageBoxData->numbuttons <= 0) |
| { |
| AddButton(HAIKU_SDL_DefButton); |
| } |
| else |
| { |
| AddSdlButtons(aMessageBoxData->buttons, aMessageBoxData->numbuttons); |
| } |
| |
| if (aMessageBoxData->colorScheme != NULL) |
| { |
| fCustomColorScheme = true; |
| ApplyAndParseColorScheme(aMessageBoxData->colorScheme); |
| } |
| |
| (aMessageBoxData->title != NULL) ? |
| SetTitle(aMessageBoxData->title) : SetTitle(HAIKU_SDL_DefTitle); |
| (aMessageBoxData->message != NULL) ? |
| SetMessageText(aMessageBoxData->message) : SetMessageText(HAIKU_SDL_DefMessage); |
| |
| SetType(ConvertMessageBoxType(static_cast<SDL_MessageBoxFlags>(aMessageBoxData->flags))); |
| } |
| |
| void |
| ApplyAndParseColorScheme(const SDL_MessageBoxColorScheme *aColorScheme) |
| { |
| SetBackgroundColor(&aColorScheme->colors[SDL_MESSAGEBOX_COLOR_BACKGROUND]); |
| fTextColor = ConvertColorType(&aColorScheme->colors[SDL_MESSAGEBOX_COLOR_TEXT]); |
| SetButtonColors(&aColorScheme->colors[SDL_MESSAGEBOX_COLOR_BUTTON_BORDER], |
| &aColorScheme->colors[SDL_MESSAGEBOX_COLOR_BUTTON_BACKGROUND], |
| &aColorScheme->colors[SDL_MESSAGEBOX_COLOR_TEXT], |
| &aColorScheme->colors[SDL_MESSAGEBOX_COLOR_BUTTON_SELECTED]); |
| } |
| |
| void |
| SetButtonColors(const SDL_MessageBoxColor *aBorderColor, |
| const SDL_MessageBoxColor *aBackgroundColor, |
| const SDL_MessageBoxColor *aTextColor, |
| const SDL_MessageBoxColor *aSelectedColor) |
| { |
| if (fCustomColorScheme) |
| { |
| int32 countButtons = CountButtons(); |
| for (int i = 0; i < countButtons; ++i) |
| { |
| ButtonAt(i)->SetViewColor(ConvertColorType(aBorderColor)); |
| ButtonAt(i)->SetLowColor(ConvertColorType(aBackgroundColor)); |
| |
| // This doesn't work. See this why: |
| // https://github.com/haiku/haiku/commit/de9c53f8f5008c7b3b0af75d944a628e17f6dffe |
| // Let it remain. |
| ButtonAt(i)->SetHighColor(ConvertColorType(aTextColor)); |
| } |
| } |
| // TODO: Not Implemented. |
| // Is it even necessary?! |
| (void)aSelectedColor; |
| } |
| |
| void |
| SetBackgroundColor(const SDL_MessageBoxColor *aColor) |
| { |
| rgb_color background = ConvertColorType(aColor); |
| |
| GetLayout()->View()->SetViewColor(background); |
| // See file "haiku/src/kits/interface/Alert.cpp", the "TAlertView" is the internal name of the left panel. |
| FindView("TAlertView")->SetViewColor(background); |
| fMessageBoxTextView->SetViewColor(background); |
| } |
| |
| bool |
| CheckLongLines(const char *aMessage) |
| { |
| int final = 0; |
| |
| // This UTF-8 friendly. |
| BString message = aMessage; |
| int32 length = message.CountChars(); |
| |
| for (int i = 0, c = 0; i < length; ++i) |
| { |
| c++; |
| if (*(message.CharAt(i)) == '\n') |
| { |
| c = 0; |
| } |
| if (c > final) |
| { |
| final = c; |
| } |
| } |
| |
| return (final > G_MAX_STRING_LENGTH_BYTES); |
| } |
| |
| void |
| SetMessageText(const char *aMessage) |
| { |
| fThereIsLongLine = CheckLongLines(aMessage); |
| if (fThereIsLongLine) |
| { |
| fMessageBoxTextView->SetWordWrap(true); |
| } |
| |
| rgb_color textColor = ui_color(B_PANEL_TEXT_COLOR); |
| if (fCustomColorScheme) |
| { |
| textColor = fTextColor; |
| } |
| |
| /* |
| if (fNoTitledWindow) |
| { |
| fMessageBoxTextView->SetFontAndColor(be_bold_font); |
| fMessageBoxTextView->Insert(fTitle); |
| fMessageBoxTextView->Insert("\n\n"); |
| fMessageBoxTextView->SetFontAndColor(be_plain_font); |
| } |
| */ |
| |
| fMessageBoxTextView->SetFontAndColor(be_plain_font, B_FONT_ALL, &textColor); |
| fMessageBoxTextView->Insert(aMessage); |
| |
| // Be sure to call update width method. |
| UpdateTextViewWidth(); |
| } |
| |
| void |
| AddSdlButtons(const SDL_MessageBoxButtonData *aButtons, int aNumButtons) |
| { |
| for (int i = 0; i < aNumButtons; ++i) |
| { |
| fButtons.push_back(&aButtons[i]); |
| } |
| |
| std::sort(fButtons.begin(), fButtons.end(), &HAIKU_SDL_MessageBox::SortButtonsPredicate); |
| |
| size_t countButtons = fButtons.size(); |
| for (size_t i = 0; i < countButtons; ++i) |
| { |
| switch (fButtons[i]->flags) |
| { |
| case SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT: |
| { |
| fCloseButton = static_cast<int>(i); |
| break; |
| } |
| case SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT: |
| { |
| fDefaultButton = static_cast<int>(i); |
| break; |
| } |
| default: |
| { |
| break; |
| } |
| } |
| AddButton(fButtons[i]->text); |
| } |
| |
| SetDefaultButton(ButtonAt(fDefaultButton)); |
| } |
| |
| public: |
| explicit |
| HAIKU_SDL_MessageBox(const SDL_MessageBoxData *aMessageBoxData) |
| : BAlert(NULL, NULL, NULL, NULL, NULL, B_WIDTH_FROM_LABEL, B_WARNING_ALERT), |
| fComputedMessageBoxWidth(0.0f), |
| fCloseButton(G_CLOSE_BUTTON_ID), fDefaultButton(G_DEFAULT_BUTTON_ID), |
| fCustomColorScheme(false), fThereIsLongLine(false), |
| HAIKU_SDL_DefTitle("SDL2 MessageBox"), |
| HAIKU_SDL_DefMessage("Some information has been lost."), |
| HAIKU_SDL_DefButton("OK") |
| { |
| // MessageBox settings. |
| // We need a title to display it. |
| SetLook(B_TITLED_WINDOW_LOOK); |
| SetFlags(Flags() | B_CLOSE_ON_ESCAPE); |
| |
| // MessageBox TextView settings. |
| fMessageBoxTextView = TextView(); |
| fMessageBoxTextView->SetWordWrap(false); |
| fMessageBoxTextView->SetStylable(true); |
| |
| ParseSdlMessageBoxData(aMessageBoxData); |
| } |
| |
| int |
| GetCloseButtonId(void) const |
| { |
| return fCloseButton; |
| } |
| |
| virtual |
| ~HAIKU_SDL_MessageBox(void) |
| { |
| fButtons.clear(); |
| } |
| |
| protected: |
| virtual void |
| FrameResized(float aNewWidth, float aNewHeight) |
| { |
| if (fComputedMessageBoxWidth > aNewWidth) |
| { |
| ResizeTo(fComputedMessageBoxWidth, aNewHeight); |
| } |
| else |
| { |
| BAlert::FrameResized(aNewWidth, aNewHeight); |
| } |
| } |
| |
| virtual void |
| SetTitle(const char* aTitle) |
| { |
| fTitle = aTitle; |
| BAlert::SetTitle(aTitle); |
| } |
| }; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| int |
| HAIKU_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid) |
| { |
| // Initialize button by closed or error value first. |
| *buttonid = G_CLOSE_BUTTON_ID; |
| |
| // We need to check "be_app" pointer to "NULL". The "messageboxdata->window" pointer isn't appropriate here |
| // because it is possible to create a MessageBox from another thread. This fixes the following errors: |
| // "You need a valid BApplication object before interacting with the app_server." |
| // "2 BApplication objects were created. Only one is allowed." |
| BApplication *application = NULL; |
| if (be_app == NULL) |
| { |
| application = new(std::nothrow) BApplication(signature); |
| if (application == NULL) |
| { |
| return SDL_SetError("Cannot create the BApplication object. Lack of memory?"); |
| } |
| } |
| |
| HAIKU_SDL_MessageBox *SDL_MessageBox = new(std::nothrow) HAIKU_SDL_MessageBox(messageboxdata); |
| if (SDL_MessageBox == NULL) |
| { |
| return SDL_SetError("Cannot create the HAIKU_SDL_MessageBox (BAlert inheritor) object. Lack of memory?"); |
| } |
| const int closeButton = SDL_MessageBox->GetCloseButtonId(); |
| int pushedButton = SDL_MessageBox->Go(); |
| |
| // The close button is equivalent to pressing Escape. |
| if (closeButton != G_CLOSE_BUTTON_ID && pushedButton == G_CLOSE_BUTTON_ID) |
| { |
| pushedButton = closeButton; |
| } |
| |
| // It's deleted by itself after the "Go()" method was executed. |
| /* |
| if (messageBox != NULL) |
| { |
| delete messageBox; |
| } |
| */ |
| if (application != NULL) |
| { |
| delete application; |
| } |
| |
| // Initialize button by real pushed value then. |
| *buttonid = pushedButton; |
| |
| return 0; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* SDL_VIDEO_DRIVER_HAIKU */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |