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Diffstat (limited to 'utils/vgui_panel_zoo/TextEntryDemo4.cpp')
| -rw-r--r-- | utils/vgui_panel_zoo/TextEntryDemo4.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/utils/vgui_panel_zoo/TextEntryDemo4.cpp b/utils/vgui_panel_zoo/TextEntryDemo4.cpp new file mode 100644 index 0000000..f10a7cd --- /dev/null +++ b/utils/vgui_panel_zoo/TextEntryDemo4.cpp @@ -0,0 +1,146 @@ +//========= Copyright Valve Corporation, All rights reserved. ============// +// +// Purpose: +// +// $NoKeywords: $ +//=============================================================================// +#include "DemoPage.h" + +#include <VGUI/IVGui.h> + +#include <vgui_controls/TextEntry.h> +#include <vgui/ISystem.h> +#include <vgui_controls/Controls.h> +#include <stdio.h> + +using namespace vgui; + +static const int TIMEOUT = 1000; // 1 second timeout + +//----------------------------------------------------------------------------- +// Text Entry controls are notepad-like windows that hold text. +// In this demo we create a NON-editable text entry window that holds multiple lines +// of text. We initialize it with some starting text and add a scroll bar to the +// window. +// Then we use a tick function to add some more text to the window every one second. +// As the window fills with text, the window scrolls vertically. +// The scroll bar will appear after a few lines and the scroll bar +// slider will shrink as even more text is added. +//----------------------------------------------------------------------------- +class TextEntryDemo4: public DemoPage +{ + public: + TextEntryDemo4(Panel *parent, const char *name); + ~TextEntryDemo4(); + + void SetVisible(bool state); + void OnTick(); + + private: + TextEntry *m_pTextEntry; + int m_iTimeoutTime; + +}; + +//----------------------------------------------------------------------------- +// Purpose: Constructor +//----------------------------------------------------------------------------- +TextEntryDemo4::TextEntryDemo4(Panel *parent, const char *name) : DemoPage(parent, name) +{ + m_pTextEntry = new TextEntry(this, "FancyTextEntry"); + + // Position the window and make it nice and wide. + // Make it tall enough to fit several lines of text. + m_pTextEntry->SetBounds(100, 100, 400, 200); + + + // Make this window hold multiple lines of text. + // This will turn off horizontal scrolling, + // and wrap text from line to line. + m_pTextEntry->SetMultiline(true); + + // Add a vertical scroll bar. + m_pTextEntry->SetVerticalScrollbar(true); + + // Insert text after you have set the size and position of the window + m_pTextEntry->InsertString("Some starting text and a pile of text. "); + m_pTextEntry->InsertString("Some more text to make mutiple lines. "); + m_pTextEntry->InsertString("Even more scrumptious, chocolatey delicious text. "); + m_pTextEntry->InsertString("Enough text to get that scroll bar a-scrolling. "); + m_pTextEntry->InsertString("That's it a nice number of chars.\n"); + + // This Text window is not editable by the user. It will only display. + m_pTextEntry->SetEditable(false); + + // This makes panel receive a 'Tick' message every frame + // (~50ms, depending on sleep times/framerate) + // Panel is automatically removed from tick signal list when it's deleted + ivgui()->AddTickSignal(this->GetVPanel()); + + m_iTimeoutTime = 0; +} + +//----------------------------------------------------------------------------- +// Purpose: Destructor +//----------------------------------------------------------------------------- +TextEntryDemo4::~TextEntryDemo4() +{ +} + + +//----------------------------------------------------------------------------- +// Purpose: When the page is shown, initialize the time +//----------------------------------------------------------------------------- +void TextEntryDemo4::SetVisible(bool state) +{ + if (state) + { + // Set the timeout time. + m_iTimeoutTime = system()->GetTimeMillis() + TIMEOUT; + + } + DemoPage::SetVisible(state); +} + + +//----------------------------------------------------------------------------- +// Purpose: Adds lines to the text entry every second. +//----------------------------------------------------------------------------- +void TextEntryDemo4::OnTick() +{ + if (m_iTimeoutTime) + { + int currentTime = system()->GetTimeMillis(); + + // Check for timeout + if (currentTime > m_iTimeoutTime) + { + char buf[125]; + sprintf (buf, "Additional Text %d\n", m_iTimeoutTime); + + // Move to the end of the history before we add some new text. + // Its important to call this and explicitly move to the + // correct position in case someone clicked in + // the window (this moves the cursor) + // If you comment out this line and rerun you will see + // that if you click in the text window additional + // text will be added where you clicked. + m_pTextEntry->GotoTextEnd(); + + // Add some text to the text entry window + m_pTextEntry->InsertString(buf); + + // Timed out, make a new timeout time + m_iTimeoutTime = system()->GetTimeMillis() + TIMEOUT; + } + } +} + + + +Panel* TextEntryDemo4_Create(Panel *parent) +{ + return new TextEntryDemo4(parent, "TextEntryDemo4"); +} + + |